Carrier Portable Generator 69UG15 User Manual

Diesel Generator Set  
r
OPERATION AND SERVICE  
for  
69UG15  
Generator Set Units  
PID UG1450 and Higher  
T--343 Rev --  
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TABLE OF CONTENTS  
PARAGRAPH NUMBER  
SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Page  
Safety--i  
GENERAL SAFETY NOTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety--i  
FIRST AID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety--i  
OPERATING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety--i  
MAINTENANCE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety--i  
UNIT LABEL IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety--i  
SPECIFIC WARNING AND CAUTION STATEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety--i  
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.2 CONFIGURATION IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3.1 Electronic Governor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3.2 Engine Air System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3.3 Lube Oil Filter Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.3.4 Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.4 ENGINE SCREW THREADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.5 ALTERNATING CURRENT GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.5.1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.5.2 Alternating Current Generator Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.6 BATTERY CHARGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.7 OPERATING CONTROLS AND INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.7.2 Control Panel and Related Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1.8 SAFETY DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1--1  
1--1  
1--1  
1--5  
1--5  
1--5  
1--5  
1--5  
1--5  
1--5  
1--5  
1--5  
1--6  
1--6  
1--6  
1--6  
1--7  
1.9 UNIT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--11  
1.10 ENGINE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--11  
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.1 GENERATOR SET INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.2 GENERATOR SET REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.3 STARTING AND STOPPING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.3.1 Pre-Start Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.3.2 Starting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.3.3 Post-Start Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.3.4 Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.4 CONTROL CIRCUIT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2.4.1 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1 DIESEL ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1.1 Engine Will Not Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1.2 Engine Starts Then Stops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1.3 Engine Will Not Shut Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1.4 Starter Motor Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1.5 Malfunction In The Engine Starting Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.1.6 Miscellaneous Engine Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2--1  
2--1  
2--2  
2--3  
2--3  
2--3  
2--3  
2--3  
2--4  
2--4  
3--1  
3--1  
3--1  
3--1  
3--2  
3--2  
3--2  
3--3  
T--343  
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TABLE OF CONTENTS -- Continued  
PARAGRAPH NUMBER  
Page  
3--3  
3--4  
3--5  
4--1  
4--1  
4--1  
4--1  
4--1  
4--1  
4--1  
4--1  
4--1  
4--1  
4--4  
4--4  
4--4  
4--4  
4--5  
4--5  
4--5  
4--5  
4--6  
4--6  
4--6  
4--6  
4--7  
4--8  
4--8  
4--9  
4--9  
3.2 BATTERY CHARGER (SOLID STATE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.3 ALTERNATING CURRENT GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3.4 AUTO RE-START OPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
SERVICE AND PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.2 PREVENTATIVE MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.3 BATTERY SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4 ENGINE SERVICE AND COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.1 Bleeding the Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.2 Servicing Fuel Pump Internal Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.3 Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.4 In--Line Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.5 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.6 Servicing the Low Coolant Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.7 Servicing Low Oil Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.8 Servicing Heater Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.9 Servicing Poly V-belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.10 Lube Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.11 Engine Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.12 Replacing the Engine Speed Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.13 Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.14 Engine Crankcase Breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.4.15 Servicing Intake Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5 SERVICING THE ALTERNATING CURRENT GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.1 Preventative Maintenance and Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.2 Generator Repair/Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.3 Bearing Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.5.4 Generator Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.6 GENERAL GENERATOR SET MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.6.1 Maintenance Of Painted Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4.6.2 Check and Replace Isolators/Shockmounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--10  
4.7 UNIDRIVE TORQUE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--11  
SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5--1  
5.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5--1  
T--343  
ii  
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LIST OF ILLUSTRATIONS  
FIGURE NUMBER  
Page  
1--3  
1--4  
1--5  
1--5  
1--6  
1--7  
1--8  
1--8  
2--1  
2--2  
4--1  
4--4  
4--5  
4--6  
4--6  
4--8  
4--8  
4--9  
4--10  
4--10  
4--11  
5--1  
5--2  
5--3  
5--4  
5--5  
5--6  
5--7  
Figure 1-1 Generator Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-2 Generator Set -- Top View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-3 Fuel System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-4 Lube Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-5 A--C Generator Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-6 Standard Control Panel and Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-7 Customer Specific Control Panel and Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 1-8 Auto Restart Control Box and Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 2-1 Typical Generator Set Mounting - Standard Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 2-2 Typical Generator Set Mounting - Quick Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-1 Mechanical Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-2 Low Coolant Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-3 Air Filter (Dry Element Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-4 Air Filter (Oil Bath Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-5 Engine Crankcase Breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-6 Rectifier Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-7 A-C Generator Rectifier Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-8 Truss and Isolator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-9 Engine Shockmounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-10 Generator Shockmounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 4-11 Unidrive Torque Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-1 Schematic Diagram - Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-2 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-3 Schematic Diagram 460 Volt Alternating Current Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-4 Schematic Diagram 230 Volt Alternating Current Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-5 Schematic Diagram - Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-6 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Figure 5-7 Schematic Diagram 460 Volt Alternating Current Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
LIST OF TABLES  
TABLE NUMBER  
Page  
1--2  
Table 1-1 Model Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Table 1-2 Auto Restart Preset Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Table 1-3 Auto Restart Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
1--9  
1--9  
Table 1-4 Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--11  
Table 4-1 Preventative Maintenance Actions and Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4--2  
T--343  
iii  
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SAFETY SUMMARY  
GENERAL SAFETY NOTICES  
The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this  
manual. They are recommended precautions that must be understood and applied during operation and maintenance  
of the equipment covered herein. The general safety notices are presented in the following three sections labeled:  
First Aid, Operating Precautions and Maintenance Precautions. A listing of the specific warnings and cautions  
appearing elsewhere in the manual follows the general safety notices.  
FIRST AID  
An injury, no matter how slight, should never go unattended. Always obtain first aid or medical attention immediately.  
OPERATING PRECAUTIONS  
Always wear safety glasses and hearing protection.  
Keep hands, clothing and tools clear of the radiator fan and rotating belts.  
No work should be performed on the unit until all circuit breakers and start-stop switches are turned off and the  
negative battery terminal has been disconnected..  
Always work in pairs. Never work on the equipment alone.  
In case of severe vibration or unusual noise, stop the unit and investigate.  
MAINTENANCE PRECAUTIONS  
Be sure power is turned off and the negative battery cable is disconnected before working on generator set.  
Do not bypass any electrical safety devices, e.g. bridging an overload, or using any sort of jumper wires. Problems with  
the system should be diagnosed, and any necessary repairs performed, by qualified service personnel.  
In case of electrical fire, open circuit switch and extinguish with CO2 (never use water).  
Fuel Tanks present explosion, fire and rupture hazards even if liquid fuel has been drained. Do not attempt any repairs,  
especially repairs using flame, welder or torch, unless you have been properly trained and the tank has been emptied  
of liquid fuel and fuel vapors and the tank is properly ventilated.  
UNIT HAZARD LABEL IDENTIFICATION  
To help identify the hazard labels on the Unit and explain the level of awareness each one carries, explanations with  
appropriate consequences are provided below:  
DANGER  
Indicates an immediate hazard which WILL result in severe personal injury or death.  
WARNING  
Indicates hazards or unsafe conditions which COULD result in severe personal injury or death.  
CAUTION  
Indicates potential hazards or unsafe practices which COULD result in minor personal injury, product or property  
damage.  
Safety--i  
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SPECIFIC WARNING AND CAUTION STATEMENTS  
The statements that follow are applicable to the generator set and appear elsewhere in this manual. These recom-  
mended precautions must be understood and applied during operation and maintenance of the equipment covered  
herein.  
WARNING  
CAUTION  
Never pour cold water into a hot engine.  
Beware of moving poly V-belt, belt driven  
components and hot exhaust components.  
CAUTION  
WARNING  
Use only ethylene glycol, anti-freeze (with  
inhibitors) in system. Use of glycol by itself  
will damage the cooling system.  
Under no circumstances should ether or  
any other unauthorized starting aids be  
used in conjunction with the air intake heat-  
er.  
CAUTION  
WARNING  
Never open the radiator cap when the cool-  
ant is hot.  
Beware of moving poly V-Belt and belt driv-  
en components.  
WARNING  
CAUTION  
Always cover the engine inlet tube while the  
air cleaner is being serviced.  
Beware of pinch points.  
WARNING  
Do not use gasoline to clean air cleaner  
parts.  
CAUTION  
Do not underfill or overfill the oil bath cups.  
Overfilling of cups causes loss of capacity;  
underfilling cups causes lack of filtering ef-  
ficiency.  
WARNING  
Do not direct water or steam into the gener-  
ator openings. Do not allow any soap and  
water solutions to enter the alternator.  
CAUTION  
WARNING  
When trying to restore residual magnetism,  
be sure to wear safety glasses and non-con-  
ductive gloves. Use an insulated 12 gauge  
(or higher) jumper wire. Cut off all but a few  
strands from both ends of the jumper wire  
to help prevent fusing.  
High voltage (dielectric) testing must not be  
performed to the machine without first ob-  
serving NEMA rules. The insulation of this  
generator winding may be safely checked  
by using a megger. A high megger reading  
indicates good insulation.  
CAUTION  
CAUTION  
The rotor should not be pulled out from the  
alternator more than 0.75 inches. Damage  
to the bearing and windings may result.  
Observe proper polarity when installing the  
battery or connecting a battery charger, the  
negative battery terminal must be  
grounded. Reverse polarity may damage  
the charging system. When charging the  
battery in unit, isolate the battery by discon-  
necting the negative battery terminal first,  
then the positive. Once the battery has been  
charged, connect the positive battery termi-  
nal first, then the negative.  
CAUTION  
Continued  
operation  
with  
failed  
shockmounts may result in engine or gen-  
erator damage.  
T-343  
Safety--ii  
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SECTION 1  
DESCRIPTION  
1.1 INTRODUCTION  
The 69UG15 is available as a standard configuration,  
with an Auto Restart option or with Auto Restart andLow  
Coolant Sensor. The Auto Restart option automatically  
restarts the unit in the event of a unit shutdown. Auto  
Restart also offers built--in indicators that signal low oil  
pressure, high water temperature, overspeed, and  
other overcrank conditions.  
The Carrier Transicold model 69UG15 under--mounted  
diesel--driven generator sets provide electrical power  
for all--electric refrigeration units.  
The generator set (see Figure 1-1 and Figure 1-2)  
consists of a diesel engine direct--connected to an  
alternating current generator and mounted in a  
structural steel frame. The engine is a vertical in--line,  
four cylinder diesel manufactured by Kubota, while the  
generator is a 15 kW, brushless, single bearing type  
manufactured by Lima. The generator provides a  
constant 460 or 230 VAC, three--phase, 60 hertz  
electrical supply.  
1.2 CONFIGURATION IDENTIFICATION  
Generator set identification information is provided on a  
label located below the left mounting pad to theleft of the  
access service door (front facing). The label provides  
the generator set model number, serial number, and  
parts identification number (PID). The model number  
identifies the overall configuration, while the PID  
provides information on specific optional equipment.  
Electrical controls are mounted in a control box with  
operating controls and gauges mounted on a control  
panel, which also serves as the control box cover. The  
control panel components are protected by a deflector  
assembly or a windowed control box door.  
Separately bound manuals covering the diesel engine  
are also available (see the following chart).  
Auxiliary engine equipment consists of the battery, solid  
state battery charging system, “spin--on” lube oil filter,  
fuel filter and other necessary components for proper  
unit operation. The water pump and the radiator cooling  
fan are belt--driven from the engine crankshaft. All  
references to engine are as viewed from the fly wheel  
end.  
Manual/  
Equipment  
Covered  
V2203--DI  
V2203--DI  
Type of  
Manual  
Engine Parts List  
Workshop  
Form No.  
62---11335  
62---11362  
1--1  
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Table 1-1 Model Chart  
LEGEND  
A1 -- Standard Mount -- (See Figure 2-1)  
A2 -- Quick Mount -- (See Figure 2-2)  
B1 -- Receptacle Box -- with Circuit Breaker  
B2 -- Receptacle Box -- with Circuit Breaker  
B3 -- Receptacle Box -- Customer Specific  
B4 -- Receptacle Box -- Interlock  
C1 -- 460 Volt -- Standard  
C2 -- 460 Volt -- with Auto--Restart  
C3 -- 460 Volt -- Customer Specific  
Electrical Wiring  
Unit  
Mounting  
Receptacle  
Box  
Schematic and  
Model  
PID  
Control Box  
Diagram Figures  
UG1450  
UG1451  
UG1452  
UG1453  
UG1455  
UG1456  
UG1457  
UG1458  
UG1459  
UG1460  
UG1461  
UG1462  
UG1463  
UG1464  
UG1465  
UG1466  
UG1467  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-5, 5-6, 5-7  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
5-1, 5-2, 5-3, 5-4  
A1  
A1  
A1  
A1  
A1  
A1  
A1  
A1  
A2  
A2  
A1  
A1  
A1  
A2  
A1  
A2  
A2  
B1  
B1  
B1  
B1  
B2  
B2  
B4  
B3  
B2  
B2  
B1  
B1  
B1  
B1  
B1  
B1  
B1  
C1  
C1  
C1  
C1  
C1  
C1  
C2  
C3  
C1  
C1  
C1  
C1  
C1  
C1  
C1  
C1  
C1  
69UG15--050S--05  
69UG15--050S--06  
69UG15--050S--07  
69UG15--050S--08  
69UG15--050Q--06  
69UG15--068S--05  
69UG15--068Q--05  
69UG15--080S--05  
69UG15--080Q--05  
T-343  
1--2  
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5
1
2
3
4
16  
15  
14  
13  
12  
11  
10  
9
8
7
6
15  
15  
15  
14  
230 VOLT  
14  
460 VOLT  
14  
1. Mechanical Fuel Pump  
2. Injector Pump  
3. Engine Speed Sensor  
4. Poly V--Belt  
5. Radiator  
6. Controls (See Figure 1-6 or Figure 1-8)  
7. Engine Oil Filter  
9. Lube Oil Dipstick/Fill Cap  
10. Starter  
11. Air Cleaner  
12. Generator Shockmount  
13. Receptacle Box  
14. Receptacle  
15. Circuit Breaker  
8. Engine Shockmount (Typical)  
16. Air Filter Indicator (if equipped)  
Figure 1-1 Generator Set  
1--3  
T-343  
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1
2
3
11  
10  
4
5
6
9
7
8
1. Fuel Tank  
2. Exhaust Muffler  
7. Engine  
8. Coolant Overflow Bottle  
3. Solid State Battery Charger  
4. Low Coolant Sensor (If Equipped)  
5. Water Temperature Sensor  
6. Water Temperature Switch  
9. Alternating Current Generator  
10. AC Generator Connection Box Access  
11. Battery  
Figure 1-2 Generator Set -- Top View (Top Frame Members Removed for Clarity)  
T-343  
1--4  
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1.3 ENGINE  
2
1
The engine is a vertical, in--line four cylinder diesel  
engine, which is direct--connected to the alternating  
current generator. Information on the major engine  
systems is provided in the following subparagraphs.  
1.3.1 Electronic Governor Module  
The electronic governor module is a solid state control  
module preprogrammed for 1800 RPM. The electronic  
governor module, along with the engine speed sensor,  
replaced the manual governor in order to provide a  
constant engine speed.  
3
1.3.2 Engine Air System  
The air cleaner (Item 11, Figure 1-1) is designed to  
prolong engine life and performance by preventing dirt  
and grit from entering the engine and causing excessive  
wear on all operating parts. In order for the air filter to  
operate properly, the operator must regularly maintain  
the air cleaner equipment in accordance with the  
instructions provided within this document.  
4
1. Oil Filter (Primary)  
2. Oil Pressure Sender  
3. Oil Pressure Switch  
4. Oil Pan  
1.3.3 Lube Oil Filter Arrangement  
The engine lubricating oil filter is mounted in a horizontal  
arrangement and shown in Figure 1-4.  
Figure 1-4 Lube Oil  
1.3.4 Fuel System  
The fuel system is fitted with an in--line pre--filter and a  
fuel filter, which also acts as a water separator. The filter  
is also fitted with a heater. The fuel system is shown in  
Figure 1-3.  
1.5 ALTERNATING CURRENT GENERATOR  
1.5.1 Principle of Operation  
The Marathon Alternator Company (Lima) brushless  
AC generator (see Figure 1-2, item 9) is  
1.4 ENGINE SCREW THREADS  
a
self--regulated, rotating field synchronous unit. The  
generator stator and exciter stator are combined in a  
common housing. The generator field, exciter rotor, and  
rotating rectifier assembly are mounted on a common  
shaft. The output of the exciter rotor is applied to the  
generator field winding through a rotating, full--wave  
bridge, silicon rectifier unit.  
All threads used on the engine are metric.  
8
All connections between the exciter stator windings and  
the generator stator windings are internal within the  
stator housing. Only the output power leads are  
connected at the terminal box, which is located on top of  
the generator.  
9
6
1.5.2 Alternating Current Generator Diagram  
Figure 1-5 shows the internal schematic diagram of the  
generator, exciter, and rectifier unit. The generator is a  
three--phase unit, and the exciter stator and exciter rotor  
also have three--phase windings. A portion of the exciter  
stator windings is connected across a tap on the  
generator stator winding. This exciter shunt winding  
provides the generator field excitation power required  
for the generator no--load voltage. Another portion of the  
exciter stator windings is connected in series with the  
output of the generator and provides a compounding  
excitation characteristic.  
5
7
4
2
3
1
1. Fuel Tank  
5. Fuel Filter and Water  
Separator  
6. Injection Pump  
8. Fuel Bleed Valve  
7. Injector Nozzles  
9. Fuel Return Line  
2. Fuel Supply Line  
3. Inline Fuel Filter  
4. Mechanical  
Fuel Pump (Engine)  
Figure 1-3 Fuel System Diagram  
1--5  
T-343  
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The rotor is, in effect, the secondary of a rotating current  
transformer induction frequency converter. The exciter  
rotor output voltage is applied to the generator field  
windings by a three--phase, full wave rotating silicon  
rectifier unit. The response time of the excitation system  
is very fast as the exciter stator carries an alternating  
current corresponding to the load current that appears  
immediately on the exciter primary. An increase in load  
current will cause an immediate increase in the exciter  
secondary output voltage, which is rectified and applied  
to the generator field windings. The inherent  
compounding characteristics of the excitation system  
provide excellent voltage regulation even under heavy  
overload conditions.  
1.6 BATTERY CHARGER  
The solid state battery charger (see Figure 1-2) is  
located to the left of the radiator. The charger is powered  
by the generator, and this input is protected by a circuit  
breaker located on the control panel. The battery  
charger produces  
a
tapered charge (25 amps  
maximum) and is designed not to overcharge the  
battery.  
1.7 OPERATING CONTROLS AND  
INSTRUMENTS  
1.7.1 Introduction  
Components required for monitoring and controlling the  
unit are located in the control box, on the control panel  
(see Figure 1-6) and on the receptacle box (see  
Figure 1-1).  
FIELD  
1.7.2 Control Panel and Related Components  
a. Gauges and Senders  
SHUNT  
1. Oil Pressure Gauge (see Figure 1-6, Figure 1-7,  
Figure 1-8)  
SERIES  
The purpose of this gauge is to observe normal  
operating engine oil pressure. Normal oil pressure is 35  
to 60 psig (3.3 to 5.2 kg/cm2).  
STATOR  
2. Oil Pressure Sender (see Figure 1-4)  
GENERATOR  
This device senses engine lube oil pressure and  
transmits a signal to the oil pressure gauge. The oil  
pressure sender is located on the oil filter housing.  
STATOR  
L
O
A
D
3. Water Temperature Gauge (see Figure 1-6,  
Figure 1-7, Figure 1-8)  
The function of this gauge is to observe water operating  
temperature. The gauge is connected to the water  
temperature sender.  
4. Water Temperature Sender (see Figure 1-2)  
ROTOR  
This device senses engine water temperature and  
transmits a signal to the water temperature gauge.  
5. Low Coolant Sensor (see Figure 1-2)  
RECTIFIER  
EXCITER  
This device senses the coolant level inside the radiator  
and will complete a conductive circuit as long as the  
probes remain immersed in coolant. When the coolant  
level falls below the probes, a signal will be sent to the  
auto restart module, shutting down the engine and all  
12--volt circuitry.  
ASSEMBLY  
Figure 1-5 A--C Generator Circuit Diagram  
6. Auto Restart Module  
CAUTION  
Auto start/restart is provided to simplify the start--up  
process and provide an automatic restart feature that  
will automatically attempt to restart the unit in the event  
of shutdown. Four LEDs are used to indicate shutdown  
from overcrank, overspeed, low oil pressure, and high  
water temperature. A fifth LED is used to indicate the  
unit is running. Refer to Table 1-2 for system preset  
values.  
Observe proper polarity when installing the  
battery or connecting a battery charger. The  
negative battery terminal must be  
grounded. Reverse polarity may damage  
the charging system. When charging the  
battery in unit, isolate the battery by  
disconnecting the negative battery terminal  
first, then the positive. Once the battery has  
been charged, connect the positive battery  
terminal first, then the negative.  
The auto restart function will perform a series of six  
attempts to restart the unit and make three attempts  
within each series. Once the function has completed all  
18 attempts, the unit will automatically lock out future  
crank attempts. Refer to Table 1-3 for detailed  
information on auto restart sequencing.  
T-343  
1--6  
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b. Meters  
3. Ignition Switch (IGN)(Auto Restart) (see Figure 1-8)  
1. Ammeter (A)  
The ignition switch is of the maintained contact type to  
be used in the RUN/OFF positions. When switched to  
the RUN position, it energizes the control module, which  
in turn controls all functions of the genset.  
The ammeter (see Figure 1-6, Figure 1-7, Figure 1-8) is  
an indicator of the charging system and unit electrical  
draw. It indicates the rate of discharge or charge of the  
battery. During start up, the intake heater draws  
approximately 42 amps.  
1.8 SAFETY DEVICES  
Safety devices, such as circuit breakers, fuses, and  
safety switches, protect system components from  
damage.  
2. Total Time Meter (TT)  
The total time meter (see Figure 1-6, Figure 1-7,  
Figure 1-8) calculates the total hours and provides an  
accurate readout of accumulated engine running time.  
This data can be used to establish the proper periodic  
maintenance schedule (refer to Section 4.1).  
c. Manual Switches  
1. Intake Heater Switch (HS) (see Figure 1-6,  
Figure 1-7)  
The intake heater switch is of the momentary type.  
When held in the PREHEAT position, the switch allows  
approximately 42 amps of battery current to flow into the  
intake heater, which preheats the air within the intake  
manifold and allows the engine to start. After starting the  
engine, the intake heater switch should continue to be  
held in the ON position for approximately 5 seconds until  
the engine has developed enough oil pressure to close  
the oil pressure safety switch.  
The AC generator, solid state battery charger, fuel  
heater, high water temperature, safety relay, total time  
meter and intake air heater are protected by circuit  
breakers. If a safety device opens and there is an  
interruption of electrical current, the electronic governor  
module will be de--energized, which will also  
de--energize the fuel solenoid, interrupt the fuel flow to  
the engine and stop the engine.  
In units with auto restart, the engine, engine control  
devices, and engine monitoring devices are protected  
by the auto restart module, low coolant sensor (if  
equipped), circuit breaker, low oil pressure switch, and  
high water temperature switch. These safety devices  
monitor system operating conditions and open a set of  
electrical contacts when an unsafe condition occurs. If a  
safety device opens and there is an interruption of  
electrical current, the electronic governor module will be  
de--energized, which will also de--energize the fuel  
solenoid, interrupt the fuel flow to the engine and stop  
the engine.  
2. Ignition Switch (IGN) (see Figure 1-6, Figure 1-7)  
The ignition switch is of the momentary type to be used  
in the OFF/ON/START positions. When held in the  
START (ignition) position, it energizes the starter motor  
solenoid, which in turn allows the starter motor to crank  
the engine. The switch is released to the RUN position  
once the engine has started.  
De--energizing the fuel solenoid shuts off the fuel supply  
to the engine; thus stopping the engine. Safety device  
specifications are provided in Table 1-4.  
CONTROL  
PANEL  
CONTROL  
BOX  
12  
13  
3
2
11  
4
1
5
6
7
10  
9
8
1. Total Time Meter  
8. Ground Studs  
2. Water Temperature Gauge  
3. Oil Pressure Gauge  
4. Ammeter  
5. Intake Air Heater Switch  
6. Ignition Switch  
9. Circuit Breaker (CB2)  
10. Circuit Breaker (CB3)  
11. Intake Heater Relay  
12. Safety Relay  
13. Intake Heater Timer  
7. Battery Charger Circuit Breaker (CB5)  
Figure 1-6 Standard Control Panel and Box  
1--7  
T-343  
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CONTROL  
PANEL  
CONTROL  
BOX  
3
2
1
11  
12  
10  
4
5
9
6
7
8
13  
1. Total Time Meter  
8. Ground Studs  
2. Water Temperature Gauge  
3. Oil Pressure Gauge  
4. Ammeter  
9. Safety Relay  
10. Intake Heater Relay  
11. Intake Heater Timer  
12. Circuit Breaker (CB2)  
13. Circuit Breaker (CB3)  
5. Intake Air Heater Switch  
6. Ignition Switch  
7. Battery Charger Fuse  
or Circuit Breaker (CB5)  
Figure 1-7 Customer Specific Control Panel and Box  
CONTROL  
PANEL  
CONTROL  
BOX  
4
3
2
5
13  
14  
6
12  
1
15  
16  
7
11  
8
10  
9
1. Total Time Meter  
9. Battery Charger Fuse  
2. Engine Start Alarm (Buzzer)  
3. Water Temperature Gauge  
4. Auto Restart Module  
5. Oil Pressure Gauge  
6. Ammeter  
or Circuit Breaker (CB5)  
10. Ground Studs  
11. Circuit Breaker (CB2)  
12. Starter Relay (SR)  
13. Low Coolant Relay (LR)  
14. Intake Heater Relay (HR)  
15. Safety Relay (S)  
7. Engine Start/Intake Heater  
Energized Light  
8. Ignition Switch  
16. Circuit Breaker (CB3)  
Figure 1-8 Auto Restart Control Box and Panel  
T-343  
1--8  
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Table 1-2 Auto Restart Preset Values  
Preset Value Description  
Indicator  
Overspeed  
2100 RPM  
Overspeed is the point at which the unit will signal for shutdown  
Crank Disconnect is the point at which the auto restart module  
senses the engine has started and will disengage the starter  
Crank Disconnect  
700 RPM  
Shutdown Lockout  
Delay  
The oil pressure and water temperature inputs are ignored during  
this 15 second delay (after start up)  
15 seconds  
The delay is used during start up. The intake heater delay begins  
timing after the auto restart module signal is received. During the  
entire delay, the intake heater circuit will be energized, an indicator  
light will be illuminated, and an alarm will sound. When the delay  
expires, the unit will crank.  
30 seconds  
preheat  
3 minutes  
postheat  
Intake Heater Delay  
Crank Attempts  
A series of six attempts with three attempts in each series  
(total of 18 attempts)  
18 attempts  
Table 1-3 Auto Restart Sequencing  
*Engine crank and rest is repeated three times each series unless the engine starts.  
Intake  
Engine  
Crank  
Engine  
Rest  
Heater  
Series  
Fuel  
Attempt Energized Solenoid  
Engine Status  
Duration  
Duration  
in  
Number  
Engaged  
(Seconds) (Seconds)  
Seconds  
If the engine starts:  
a. Run sequence begins  
b. Intake heater remains energized for 3  
minutes  
If the engine fails to start:  
1
30  
X
Up To 15  
25  
a. Intake heater will de--energize.  
b. Fuel solenoid will de--energize.  
c. Crank output will de--energize.  
d. Overcrank LED will flash once. Wait two  
seconds and repeat.  
e. Unit will rest 30 minutes and proceed to  
the next series.  
If the engine starts:  
a. Run sequence begins.  
b. Intake heater remains energized for 3  
minutes.  
If the engine fails to start:  
2
30  
X
Up To 15  
25  
a. Intake heater will de--energize.  
b. Fuel solenoid will de--energize.  
c. Crank output will de--energize.  
d. Overcrank LED will flash twice. Wait two  
seconds and repeat.  
e. Unit will rest 30 minutes and proceed to  
the next series.  
If the engine starts:  
a. Run sequence begins.  
If the engine fails to start:  
a. Intake heater will de--energize.  
b. Fuel solenoid will de--energize.  
c. Crank output will de--energize.  
d. Overcrank LED will flash three times.  
Wait two seconds and repeat.  
e. Unit will rest five hours and proceed to  
the next series.  
3
30  
X
Up To 15  
25  
1--9  
T-343  
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Table 1-3 Auto Restart Sequencing (Continued)  
Intake  
Heater  
Engine  
Crank  
Engine  
Rest  
Series  
Fuel  
Attempt Energized Solenoid  
Engine Status  
Duration  
Duration  
in  
Number  
Engaged  
(Seconds) (Seconds)  
Seconds  
If the engine starts:  
a. Run sequence begins.  
If the engine fails to start:  
a. Intake heater will de--energize.  
b. Fuel solenoid will de--energize.  
c. Crank output will de--energize.  
d. Overcrank LED will flash four times. Wait  
two seconds and repeat.  
4
30  
30  
30  
X
Up To 15  
Up To 15  
Up To 15  
25  
25  
25  
e. Unit will rest five hours and proceed to  
the next series.  
If the engine starts:  
a. Run sequence begins.  
If the engine fails to start:  
a. Intake heater will de--energize.  
b. Fuel solenoid will de--energize.  
c. Crank output will de--energize.  
d. Overcrank LED will flash five times. Wait  
two seconds and repeat.  
e. Unit will rest five hours and proceed to  
the next series.  
5
X
If the engine starts:  
a. Run sequence begins.  
If the engine fails to start:  
a. Intake heater will de--energize.  
b. Fuel solenoid will de--energize.  
c. Crank output will de--energize.  
d. Overcrank LED will illuminate solid and  
lock out future crank attempts.  
e. To reset, turn unit power switch OFF and  
back ON.  
6
X
T-343  
1--10  
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Table 1-4 Safety Devices  
Unsafe Condition  
Safety Switch  
ENGINE  
Switch Setting  
Low oil pressure switch (LOP) --  
Automatic reset  
Opens below 18 psig  
(1.27 kg/cm2)  
Low engine lubricating oil pressure  
High engine cooling water temperature  
Low coolant  
Water temperature switch (HWT) --  
Automatic reset  
Opens at 230F (110C)  
Low coolant sensor  
Automatic reset  
Opens with a loss of 32  
ounces of coolant  
Excessive current draw by the safety re-  
lay, fuel heater, water temperature gauge,  
oil pressure gauge or total time meter  
Excessive current draw by the electronic  
governor module  
Circuit breaker (CB--2) --  
Automatic reset  
Trips at 30 amps  
Trips at 10 amps  
Fuse 1, 2, 3  
INTAKE HEATER  
Excessive current draw on intake heater  
circuit  
Circuit breaker (CB--3) --  
Automatic reset  
Opens at 50 amps  
BATTERY CHARGER  
Excessive current draw on 230 volt feed  
circuit  
Circuit breaker (CB--5) -- Manual reset Opens at 3 amps  
GENERATOR  
Circuit breaker (CB--1, 460 volt) --  
Manual reset  
Trips at 26 amps  
(460 VAC)  
Excessive current draw by load  
Circuit breaker (CB--4, 230 volt) --  
Manual reset  
Trips at 48 amps  
(230 VAC)  
1.9 UNIT SPECIFICATIONS  
Nominal Tank Sizes  
Fill Capacity  
Draw Capacity  
52 gallons  
(256 liters)  
50 gallons*  
(246 liters)  
50 Gallon Steel  
52 gallons  
(256 liters)  
50 gallons*  
(246 liters)  
50 Gallon Aluminum  
a. Fuel Tanks  
67.5 gallons  
(197 liters)  
65 gallons*  
(189 liters)  
65 Gallon Steel  
85 gallons  
(322 liters)  
80 gallons*  
(303 liters)  
80 Gallon Aluminum  
*Allows for DOT required 5% vapor space  
Battery  
63 lb (28.6 kg)  
Generator (A--C)  
280 lb (127 kg)  
434 lb (197 kg) Approximate  
1555 lb (705.3 kg)  
Engine (Dry) -- without Accessories  
Unit (with 50 gal steel tank, dry)  
Unit (with 50 gal aluminum tank, dry)  
Unit (with 65 gal steel tank, dry)  
Unit (with 80 gal aluminum tank, dry)  
b. Weights  
1485 lb (673.6 kg)  
1580 lb (716.7 kg)  
1545 lb (700.8 kg)  
1.10 ENGINE DATA  
a. Bore/Stroke  
3.26 in. (38 mm) / 4.03 in. (102.4 mm)  
b. Compression Ratio  
c. Cylinders (Number)  
d. Displacement  
21.5 : 1  
Four  
135.2 cubic inches (2.22 liters)  
1--3--4--2  
e. Firing Order  
1--11  
T-343  
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1.10 ENGINE DATA (Continued)  
Oil Pressure Safety  
Switch Setting  
Opens  
18 psig (1.27 kg/cm2)  
Capacity  
Engine -- 16.0 US quarts (15.1 liters), includes standard filter.  
Dipstick in oil pan or fill cap  
NOTE  
To check oil level on engines with the dipstick mounted in the  
fill cap, remove the cap and wipe the dipstick clean. Insert the  
cap back onto the oil fill tube, then remove to check level. It is  
not necessary to screw the cap back into the fill tube when  
checking level. DO NOT add oil if level is within the “safe”  
range. If needed, add oil to bring level within the “safe” range.  
Screw cap fully into fill tube after checking level.  
Oil Level Indicator  
f. Lubrication System  
Use a heavy duty lubricating oil conforming to American Pe-  
troleum Institute (API) Service Classification CG, CH or CI,  
Base Number 10 or above.  
Lube Oil  
Specification  
Outdoor Temperature  
Fahrenheit  
0F to 45F  
Centigrade  
--18C to 7C  
SAE  
10W30  
Lube Oil Viscosity  
45F and above  
7C and above  
10W30 or 15W40  
Winter  
Diesel No. 1  
Summer  
Diesel No. 2  
g. Fuel and Fuel Heater  
Thermostat (FHT)  
FHT  
Close on temperature fall @ 45+/-- 6.5F Open on temperature rise @ 75+/-- 6.5 F  
Power Consumption: 150 Watts @ +/-- 10% at 14 VDC  
42 amps at 12 VDC  
h. Intake Heater Amperage  
i. Horsepower  
27 HP @ 1800 RPM at 3000 feet above sea level.  
32 HP @ 1800 RPM at sea level.  
6 U.S. quarts (5.68 liters) -- includes 1 quart (0.95 liter) in  
coolant recovery bottle. (Refer to section 4.4.5)  
Capacity  
The cooling system may be factory charged with a 50/50 mix  
of ethylene glycol and water. This mixture provides protection  
Anti--Freeze:  
to --34F (--37C). For replacement, use a low silicate anti--  
Conventional  
freeze meeting GM specifications GM 6038M or equal. Again,  
a 50/50 mix is recommended.  
The cooling system may be factory charged with a 50/50 mix  
of extended life coolant (ELC) and deionized water. This mix-  
ture provides protection to --34F (--37C). For replacement,  
Anti--Freeze:  
with extended life coolant (ELC) meeting GM specification  
Extended Life  
j. Cooling System  
GM6277M and deionized water. Again, a 50/50 mix is recom-  
mended. Extended life coolant is red or orange in color.  
DO NOT mix with conventional coolant.  
Opens  
Resets  
230 +/-- 5F (110 +/-- 3C)  
200F (93C) -- minimum  
Water Temperature  
Safety Switch  
Setting  
Starts to open  
Fully open  
Opens  
177 to 182F (80 to 84C)  
203F (95C)  
Loss of 32 ounces of coolant or more  
Refilling of radiator to proper level  
Thermostat  
Low Coolant  
Sensor  
Closes  
k. Lubrication System  
Oil Pressure  
35 to 60 psig (3.3 to 5.2 kg/cm@)  
T-343  
1--12  
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SECTION 2  
OPERATION  
2.1 GENERATOR SET INSTALLATION  
completion, remove safety chain before removing  
forks of fork lift truck from unit.  
b. Quick Mount  
The generator set is mounted under the center of the  
trailer chassis and is easily handled with a fork lift truck  
capable of handling 2,000 pounds. The fork lift pockets  
provided are accessible from either side. Mounting  
clamps are designed to be attached to outside I-beam  
flanges only. Maximum chassis width is 38 inches on  
center.  
1. Loosen mounting bolts (see Figure 2-2) sufficient to  
bring clamp to open position. To orient in open posi-  
tion, lift nut end of bolt out of slot. Clamp will fall open.  
2. Place forks into fork lift pockets of generator. Attach  
safety chain between unit and fork truck.  
a. Standard Mount  
3. Center the generator set in desired position under  
chassis.  
1. Loosen mounting bolts (see Figure 2-1) sufficient to  
push mounting plates to the outermost position.  
4. Lift clamp (item 1) in place, ensuring bolt (item 4) is  
secured in slot.  
2. Place forks into fork lift pockets of generator set. At-  
tach safety chain between unit and fork truck.  
5. Tighten bolt to 55 - 65 ft-lbs (7.6 - 9.0 mkg).  
3. Center generator under chassis slide mounting  
plates fully onto chassis I-beams and torque mount-  
ing bolts to 80 - 90 ft-lbs (11.1 - 12.4 mkg). Upon  
6. Upon completion, remove safety chain before re-  
moving forks of fork lift truck from unit.  
CONTAINER FLOOR CROSS I---BEAMS  
A
REAR OF CHASSIS  
A
FORK LIFT POCKET  
ROADSIDE VIEW  
1
2
3
5
7
6
4
8
SECTION A - A  
1. Bolt  
5. Washer, Belleville  
6. Washer, Spherical, Female  
7. Tee Nut  
2. Washer, Spherical, Male  
3. Mounting Plate  
4. Generator Frame  
8. Roll Pin  
Figure 2-1 Typical Generator Set Mounting - Standard Mount  
2--1  
T-343  
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CONTAINER FLOOR CROSS I---BEAMS  
REAR OF CHASSIS  
A
A
FORK LIFT POCKET  
ROADSIDE VIEW  
5
6
4
7
2
8
3
1
VIEW A - A  
1. Angle Assembly, Clamp  
2. Washer, Spherical, Male  
3. Washer, Spherical, Female  
4. Bolt  
5. Washer, Spherical, Belleville  
6. Roll Pin  
7. Nut, Hex, 3/4-10  
8. Frame Assembly  
Figure 2-2 Typical Generator Set Mounting - Quick Mount  
2.2 GENERATOR SET REMOVAL  
b. Quick Mount  
a. Standard Mount  
1. Disconnect power cable to unit (if connected).  
1. Disconnect power cable to generator (if connected).  
2. With fork lift in position and safety chain attached,  
loosen mounting bolts, and lift end of bolts out of slot  
to orient clamps to open position.  
2. With fork lift in position and safety chain attached,  
slide mounting plates back sufficiently to clear chas-  
sis.  
3. Lower and remove generator.  
2--2  
T-343  
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2.3 STARTING AND STOPPING INSTRUCTIONS  
2.3.1 Pre-Start Inspection  
NOTE  
Piston rings in engines that have operated less  
than 100 hours may not be fully seated. This  
may lead to the possibility of oil seepage from  
the exhaust pipe. To properly seat the rings, op-  
erate the engine under full load for aperiod of 24  
hours. If the condition persists, check valve  
clearance when the engine is cold. (Refer to en-  
gine workshop manual listed in paragraph 1.2).  
a. Check engine lubrication and fuel filters, oil lines, and  
connections for leaks. If required, tighten connec-  
tions and/or replace gaskets.  
b. Check engine lubricating oil level. (Refer to para-  
graph 1.10, table entry f.)  
c. Check poly V-belt for fraying or cracks and proper ten-  
sion. (Refer to paragraph 4.4.9).  
a. Standard Units  
1. Hold intake heater switch (see Figure 1-6) in the  
PREHEAT position. Suggested hold times for a cold  
engine are as follows:  
d. Check radiator hoses for leaks and check radiator  
coolant level. (Refer to paragraph 1.10, table entry j.)  
e. Check radiator coil and generator air intake screen for  
cleanliness. If required, clean using compressed air,  
reversing the normal air flow.  
COLD ENGINE PREHEAT TIMES  
Ambient Temperature  
78 F/ 26 C  
Time  
5 seconds  
f. Check air cleaner for cleanliness and clean if neces-  
sary. (Refer to paragraph 4.4.13.)  
32 F to 78 F  
(0 C to 26 C)  
10 seconds  
20 seconds  
30 seconds  
g. Check in--line fuel filter and clean if necessary. (Refer  
to paragraph 4.4.4.)  
18 F to 32 F  
(--8 C to 26 C)  
h. Drain water from fuel tank sump and filter bowl.  
Below 18 F/-8 C  
i. Fill fuel tank with diesel fuel. (Refer to paragraph1.10,  
table entry g.)  
2. With the intake heater switch held in the PREHEAT  
position, place the ignition switch in the START posi-  
tion.  
j. Check air intake heater amperage. (Refer to para-  
graph 1.10, table entry h.)  
3. After the engine has started, continue to hold the in-  
take heater switch in the PREHEAT position until the  
engine develops sufficient oil pressure to close the  
k. Check battery terminals for cleanliness and secure-  
ness. If required, clean, then coat with a battery termi-  
nal sealant.  
oil pressure safety switch (approximately  
5
seconds). When released, the intake heater switch  
will automatically return to the OFF position and the  
heater will remain energized for 3 minutes.  
l. Check, and if required, tighten all electrical connec-  
tions.  
m.Check, and if required, tighten all hardware (brack-  
ets, etc.).  
b. Units with Auto Start  
1. Place the Ignition switch (IGN) in the RUN position.  
n. Ensure that the main generator set circuit breaker is  
off (CB-1 for 460 volt units or CB4 for 230 volt units).  
Connect power cable to refrigeration unit and pro-  
ceed to paragraph 2.3.2.  
2. If the low coolant sensor (LCS) is immersed in cool-  
ant, the auto restart module will energize the heater  
for 30 seconds and the safety buzzer will sound. Af-  
ter the 30 second delay, the unit will attempt to start.  
2.3.2 Starting Instructions  
2.3.3 Post-Start Inspection  
a. Turn on CB-1 for 460 volt units or CB4 for 230 volt  
units.  
WARNING  
b. Check generator output with a voltmeter. In the no  
load condition, output should be at 490 (+/- 10%)  
volts with 1800 engine RPM. Place generator set  
main circuit breaker in the ON position. Start refrig-  
eration unit.  
Beware of moving poly V-belt, belt driven  
components and hot exhaust components.  
c. Run engine 10 minutes (check total time meter op-  
eration).  
d. Listen for abnormal bearing noise (AC generator).  
e. Check fuel lines, lube oil lines, and filters for leaks.  
f. Check exhaust system for leaks.  
WARNING  
Under no circumstances should ether or  
any other unauthorized starting aids be  
used in conjunction with the air intake heat-  
er.  
2.3.4 Stopping Instructions  
Place the ignition switch in the OFF position.  
2--3  
T-343  
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2.4 CONTROL CIRCUIT OPERATION  
The ignition switch (IGN) will be released. The intake air  
heater switch (IH) will be held for 5 seconds, then  
released after the IGN switch is realeased. When the  
START switch is released, the starter will be  
disengaged.  
WARNING  
With the engine running, the battery charger provides  
DC power to operate the control system and charge the  
battery.  
Beware of moving poly V-Belt and belt driv-  
en components.  
b. Units with Auto Start  
2.4.1 Sequence of Operation  
When the ignition switch is placed in the RUN position,  
12-volt DC power is applied to the low coolant sensor  
(LCS) and the auto restart module simultaneously. If the  
coolant level is below the sensor, all the indicator lights  
on the auto restart module will blink once and the LCS  
will open the contacts on the low coolant relay,  
de-energizing the unit’s 12-volt DC circuitry. If the  
coolant level is above the sensor, the auto restart  
module will maintain power and all lights on the module  
will illuminate. As the module performs its self test, the  
lights will go out individually.  
a. Standard Units  
With the intake heater switch (IH) held in the ON  
position, current flows through the ammeter to the  
intake heater. While heater is on, the ammeter will show  
a 40--amp draw.  
A second set of contacts also energizes the safety relay  
(S).  
If the high water temperature switch (HWT) opens to  
break the safety relay ground connection, the safety  
relay will not energize, and the engine will not start,  
After the self test is complete, the module will energize  
the intake heater and sound the audible alarm warning,  
indicating that the unit has been powered on and will  
start. The 30--second delay starts at this time. When the  
30--second delay expires, power will be applied to the  
electronic governor and the engine attempts to crank for  
15 seconds.  
To start the engine, the ignition switch (IGN) is held in  
the START position. With the switch in the START  
position, current flows to the start solenoid (SS), through  
the SS contacts to the starter motor (SM). Current then  
flows to the intake heater timer, intakeheater relay (IHR)  
and to the heater, while simultaneously powering the  
electronic governor module (EG), fuel solenoid (FS),  
and engine speed sensor (ESS).  
When the engine starts, the intake heater will remain  
energized for 3 minutes; during this time, the  
engine/intake heater light and alarm will be energized,  
the shutdown/lockout time delay of 15 seconds will  
begin counting, and the starter will be disengaged.  
During the shutdown/lockout time delay at start up, the  
auto restart module will disregard the signals to the oil  
pressure and engine temperature inputs, and the Run  
sequence will begin (see Restart Procedure). If engine  
does not start, refer to Table 1.3 for auto restart  
sequencing.  
The starter motor turns over the engine resulting in  
pumping of fuel to the engine cylinders by the injection  
pump. This fuel is ignited by heat of compression; thus  
starting the engine. When the engine has developed  
sufficient oil pressure, the low oil pressure switch  
contacts close to maintain power to the safety relay.  
Once the engine has started, the intake heater will  
remain energized for 3 minutes.  
2--4  
T-343  
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SECTION 3  
TROUBLESHOOTING  
REMEDY/  
REFERENCE  
SECTION  
CONDITION  
POSSIBLE CAUSE  
3.1 DIESEL ENGINE  
3.1.1 Engine Will Not Start  
Battery insufficiently charged  
Battery terminal post or battery defective  
Electrical connections at starter are bad  
Starter motor malfunctions  
Starter motor solenoid defective  
Open starting circuit  
Charge  
Check  
Correct  
See 3.1.4  
Engine Manual  
See 3.1.5  
Section 1.10.f.  
Starter motor will not crank or low  
cranking speed  
Incorrect grade of lubricating oil  
No fuel in tank  
Sections  
1.9/1.10.g  
Air inside the fuel system  
Water inside the fuel system  
Plugged fuel filters  
Section 4.4.1  
Drain Sump  
Replace  
Air intake heater is bad  
Low oil / Oil pressure switch defective  
Faulty heater switch  
Plugged fuel lines to injector(s)  
Mechanical lift fuel pump malfunction  
Fuses F1, F2, F3, F4 are bad  
Loose or no connection between wire harness and  
electronic governor  
Section 4.4.15  
Section 4.4.7  
Section 4.4.8  
Engine Manual  
Engine Manual  
Check/ replace  
Check/correct  
Starter motor cranks, but fails to  
start  
Engine lube oil too heavy  
Voltage drop in starter cable(s)  
Section 1.10.f.  
Check  
Starter cranks and engages, but  
dies after a few seconds  
3.1.2 Engine Starts Then Stops  
No fuel in tank  
Sections  
1.9/1.10.g  
Fuel heater switch not held long enough  
Fuel filter restricted  
Hold switch  
Replace  
Air cleaner or hose restricted  
Engine crankcase breather or hose restricted  
Safety device open  
Open wiring circuit to fuel solenoid  
Fuel solenoid defective  
Section 4.4.13  
Section 4.4.14  
Section 1.8  
Check  
Engine stops after a few rotations  
Replace  
Fuel supply restricted  
Sections 1.10.g,  
4.4.2, and 4.4.3  
Mechanical lift fuel pump malfunction  
Low oil / Oil pressure switch defective  
Leak in fuel system  
Engine Manual  
Section 4.4.7  
Check  
Injector nozzle(s) defective  
Injection pump defective  
Generator internal overloads open  
Engine Manual  
Engine Manual  
Table 1-4  
T-343  
3--1  
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REMEDY/  
REFERENCE  
SECTION  
CONDITION  
POSSIBLE CAUSE  
3.1.3 Engine Will Not Shut Off  
Engine will not shut off  
Loose ground connection  
Improperly seated fuel solenoid  
Clean/Tighten  
Correct  
3.1.4 Starter Motor Malfunction  
Battery insufficiently charged  
Battery cable connections loose or oxidized  
Battery cables defective  
Charge  
Check/Replace  
Check/Replace  
Engine Manual  
Starter brushes shorted out  
Starter motor will not crank or turns  
slowly  
Starter brushes hang up, defective or have no contact Engine Manual  
Starter solenoid damaged  
Ignition switch defective  
Engine lube oil too heavy  
Engine Manual  
Replace  
Section 1.10.f.  
Starter motor turns, but pinion does Pinion or ring gear obstructed or worn  
not engage  
Engine Manual  
Ignition switch is bad  
Starter motor solenoid is bad  
Check/Replace  
Engine Manual  
Starter motor does not disengage  
after switch has been released  
Pinion does not disengage after  
engine is running  
Starter is bad  
Engine Manual  
3.1.5 Malfunction In The Engine Starting Circuit  
Battery defective  
Loose electrical connections  
Correct  
Tighten  
No power to starter motor solenoid  
Battery defective  
Correct  
Loose electrical connections  
Oil pressure switch defective  
Water temperature safety switch open  
Fuel solenoid defective  
Intake heater switch is bad  
Electronic governor module is bad  
Tighten  
Section 1.8  
Section 1.8  
Engine Manual  
Fuel solenoid does not energize or  
does not remain energized  
Check  
(Engine Manual)  
Replace  
(Section 4.4.15)  
Check/Replace  
Intake heater switch is bad  
Timer is bad  
Heater element is bad  
Heater relay is bad  
Section 4.4.15  
Section 4.4.15  
Section 4.4.15  
Section 4.4.15  
Intake heater does not energize  
T-343  
3--2  
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REMEDY/  
REFERENCE  
SECTION  
CONDITION  
POSSIBLE CAUSE  
3.1.6 Miscellaneous Engine Troubleshooting  
Restriction in air cleaner  
Air in fuel system  
Air vent restricted  
Section 4.4.13  
Section 4.4.1  
Clean  
Restricted fuel lines  
Engine Manual  
Engine Manual  
Engine Manual  
Engine Manual  
Engine Manual  
Engine Manual  
Loss of power  
Fuel injection pump is bad  
Injector(s) bad or incorrect type used  
Incorrect fuel injection pump timing  
Incorrect valve timing  
Poor compression  
Engine shockmounts are bad  
Poor compression  
Replace  
Engine Manual  
Vibration  
Restriction in air cleaner  
Exhaust pipe restriction  
Restriction in water jacket  
Restriction in radiator  
Coolant level too low  
Loose water pump/alternator poly V-belt  
Thermostat is bad  
Section 4.4.13  
Remove  
Engine Manual  
Section 4.4.5  
Section 1.10.j.  
Section 4.4.9  
Engine Manual  
Engine Manual  
Overheating  
Water pump is bad  
Excessive crankcase pressure  
Plugged crankcase breather line  
Section 4.4.14  
3.2 BATTERY CHARGER (SOLID STATE)  
Short in 12-volt wiring causing overload of charger  
Locate and  
remove short or  
replace charger  
Circuit breaker trips when charger is  
turned on  
Circuit breaker trips repeatedly,  
even when not connected  
Internal short  
Replace charger  
Bad cell in battery  
Test battery for  
defect according  
to battery  
manufacturer’s  
instructions  
Charger does not taper back after  
charging for a few minutes  
Replace  
Charger is bad  
T-343  
3--3  
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REMEDY/  
REFERENCE  
SECTION  
CONDITION  
POSSIBLE CAUSE  
3.2 BATTERY CHARGER (SOLID STATE) (CONTINUED)  
Open input circuit breaker  
Reset  
Charger is not receiving AC input  
Using a voltme-  
ter, confirm  
charger is receiv-  
ing correct (230v)  
AC voltage. If not,  
check input  
Charger does not charge  
connections.  
Charger output is not connected to 12 volt battery  
Check output  
wiring connec-  
tions to battery.  
Replace  
Charger is bad  
Battery not connected to charger. It is normal to  
measure 12 volts or less across charger output with  
no battery connected  
Check charging  
leads from  
charger to battery  
Low output voltage measured  
across charger output  
Reverse polarity connection to  
battery has caused charger to stop  
charging  
Internal DC fuse blown and possible damage to  
current carrying components  
Replace  
3.3 ALTERNATING CURRENT GENERATOR  
Loss of residual magnetism in exciter field  
Section 4.5.2.a.  
Check  
Section 4.5.4/  
Replace  
Circuit breaker tripped  
Open in stator windings  
Section 4.5.1.c.  
Section 4.5.4/  
Replace  
Open or short in rotating rectifiers  
Short circuited  
No voltage  
Section 4.5.4/  
Replace  
Section 4.5.4/  
Replace  
Open in alternator field  
Shorted exciter armature  
Low engine speed  
Excessive load  
Section 4.4.11  
Check  
High resistance connections - connections are  
warm or hot  
Shorted field  
Tighten  
Low voltage  
Section 4.5.4/  
Replace  
Fluctuating speed  
Irregular speed of engine  
Loose terminal or load connections  
Bad bearing causing uneven air gap  
Section 4.4.11  
Engine Manual  
Tighten  
Section 4.5.1/  
4.5.3  
Fluctuating voltage (May be indi-  
cated by flickering lights)  
High voltage  
Excessive engine speed  
Section 4.4.11  
T-343  
3--4  
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REMEDY/  
REFERENCE  
SECTION  
CONDITION  
POSSIBLE CAUSE  
3.3 ALTERNATING CURRENT GENERATOR (CONTINUED)  
Generator overloaded  
Check  
Clogged ventilating screens  
Clean  
High temperature surrounding generator  
Section 4.4.5  
Section 4.5.1  
Balance  
Section 4.5.1/  
4.5.3  
Overheating  
Insufficient air circulation  
Unbalanced load  
Dry bearing  
Bad bearing  
Section 4.5.1/  
4.5.3  
Rotor scrubbing on stator  
Loose laminations  
Section 4.5.1/  
4.5.3  
Section 4.5.4/  
Replace  
Mechanical Noise  
Loose or misaligned coupling  
Static charge  
Section 4.5.4  
Check ground to  
frame  
Section 4.5.4/  
Replace  
Generator frame produces shock  
when touched  
Grounded armature of field coil  
3.4 AUTO RE-START OPTION  
Wait 30 seconds for intake heater to be activated  
Coolant level below the low coolant sensor  
Relay defective  
Wait  
1.10.j.  
Check/Replace  
Ignition switch defective  
Check/Replace  
Switch  
3 amp Fuse is bad  
Check and  
When the Ignition switch is placed in  
the RUN position, nothing happens--  
no lights illuminate  
Replace Fuse  
Loose connector on module  
Auto restart module is bad  
Tighten  
connector  
Check for 12  
volts at Pin 4/  
Replace module  
Miswired connectors  
Check/Correct  
wiring  
No voltage at Pin 2 of the connector  
Check Starter Solenoid  
Auto restart module is bad  
Trace/Correct  
See 3.1.1  
Replace module  
Alarm sounds, but engine does not  
crank  
Speed Sensor wiring loose  
Speed Sensor is bad  
Auto restart module is bad  
Check/Correct  
Replace  
Replace module  
Engine starts, but the starter does  
not disengage  
T-343  
3--5  
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REMEDY/  
REFERENCE  
SECTION  
CONDITION  
POSSIBLE CAUSE  
3.4 AUTO RE-START OPTION (CONTINUED)  
Engine starts, but shuts down from  
over speed  
Electronic governor module is bad  
Replace  
Electronic governor module is bad  
See 3.1.1  
Replace  
See 3.1.1  
Engine cranks, but will not start  
Engine starts, but shuts down on  
low oil  
See 3.1.2  
See 3.1.2  
See 3.1.6  
See 3.1.6  
Engine starts, but shuts down on  
high water temperature  
T-343  
3--6  
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SECTION 4  
SERVICE AND PREVENTIVE MAINTENANCE  
4.1 INTRODUCTION  
3. Turn filter (item 3) counter-clockwise and remove.  
Check and clean.  
This section covers service for the generator set and  
general engine service. Refer to the Kubota engine  
workshop manual, Section 1.1, for other engine  
servicing.  
4. To install, reverse steps 1 through 3.  
5
3
1
WARNING  
Beware of moving V-belt and belt driven  
components.  
4.2 PREVENTATIVE MAINTENANCE SCHEDULE  
A tabular listing of the recommended preventative  
maintenance activities and schedule is provided in  
Table 4-1.  
4
1
4.3 BATTERY SERVICE  
2
When replacing the battery, determine whether the unit  
was supplied with a mat in the battery tray. If so  
equipped, the mat must also be replaced.  
1. Nut  
2. Banjo  
3. Filter  
4. Copper Rings  
5. Manual Priming Pump  
4.4 ENGINE SERVICE AND COMPONENTS  
4.4.1 Bleeding the Fuel System  
Figure 4-1 Mechanical Fuel Pump  
4.4.3 Fuel Filter  
The unit is equipped with a mechanical fuel lift pump,  
mounted on the engine next to the injection pump. The  
fuel system is a closed circuit, which will require  
bleeding if loss of fuel has occurred. To fill and bleed the  
system, do the following:  
The full flow filter is located on the generator set frame  
(see Figure 1-3).  
To renew, remove the nut on top of filter housing, then  
remove the bowl housing and filter element. Install new  
filter element. Lightly oil new gasket with lube oil and  
replace. Reassemble housing.  
1. Turn fuel bleed valve (Red, see Figure 1-3) counter-  
clockwise until fully opened.  
4.4.4 In--Line Fuel Filter  
2. Turn the top of the manual priming pump (see  
Figure 4-1) counter-clockwise to unlock it, and then  
rapidly hand pump the manual plunger until a posi-  
tive pressure (resistance) is felt. This will indicate  
fuel flow.  
Loosen bowl by turning counter--clockwise. To renew,  
remove in--line fuel strainer, check and clean, and  
replace.  
4.4.5 Cooling System  
To ensure adequate cooling, the radiator must be clean,  
externally and internally. To service the cooling system,  
do the following:  
3. Depress and turn the top of the manual priming  
pump clockwise to lock in place.  
4. Start engine. (Refer to section 2.3).  
1. Remove all foreign material from the radiator coil by  
reversing the normal air flow. Compressed air or wa-  
ter may be used as a cleaning agent. It may be nec-  
essary to use warm water mixed with any good com-  
mercial dishwasher detergent. If a detergent is used,  
rinse coil(s) with fresh water.  
5. When engine is running properly, turn fuel bleed  
valve clockwise until fully closed.  
4.4.2 Servicing Fuel Pump Internal Filter  
The internal fuel filter may become plugged or restricted  
with foreign particles or wax, which can develop if the  
wrong grade of fuel is used or untreated fuel is used in  
cold weather, contaminating the fuel. If the internal filter  
is plugged, the engine will lose power. Therefore, the  
filter must be cleaned on a regular basis. The quality of  
the fuel will affect the filter cleaning schedule (refer to  
section 4.2).  
2. Drain coolant completely by opening drain cock and  
removing radiator cap.  
CAUTION  
Never pour cold water into a hot engine.  
1. Turn nut (item 1) counter-clockwise to loosen and re-  
move.  
3. Close drain cock and fill systemwith clean, untreated  
water to which between 3% and 5% of an alkaline  
base radiator cleaner should be added; six ounces  
(dry) = 151 grams to one gallon (3.8 liter) of water.  
2. Remove banjo fitting (item 2) and let it hang loose,  
making sure to keep copper rings (item 4) for re-  
placement.  
4--1  
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4--2  
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4--3  
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4. Run engine 6 to 12 hours and drain system while  
warm. Rinse system three times after it has cooled  
down. Refill system with water.  
4. Reconnect the harness and refill the radiator to  
proper level.  
4.4.7 Servicing Low Oil Pressure Switch  
1. Remove harness connection from low oil pressure  
switch (LOP).  
CAUTION  
2. Remove pressure switch from engine.  
Use only ethylene glycol, anti-freeze (with  
inhibitors) in system. Use of glycol by itself  
will damage the cooling system (Refer to  
paragraph 1.10.j.).  
3. Apply Teflon thread sealer to threads of new low oil  
pressure switch.  
4. Install new low oil pressure switch.  
5. Reconnect harness connection to low oil pressure  
switch.  
5. Run engine to operating temperature. Drain system  
again and fill with treated water/anti-freeze (see  
above Caution note).  
4.4.8 Servicing Heater Switch  
1. Remove control box cover.  
4.4.6 Servicing the Low Coolant Sensor  
a. Testing the Low Coolant Sensor (LCS)  
1. Verify the coolant level is correct.  
2. Remove all connections going to heater switch (HS).  
3. Remove heater switch from control box.  
4. Install new heater switch.  
2. Verify the wiring to the sensor is correct.  
5. Reconnect wire harness connections to switch.  
3. Check voltage (12.5 to 13.5 VDC) to the B terminal  
with the ignition switch on (see Figure 4-2).  
6. Confirm that wires are connected to correct  
terminals.  
4. Check continuity between terminals A and C (see  
Figure 4-2) while 12 VDC is applied to terminal B.  
7. Reinstall control box cover.  
4.4.9 Servicing Poly V-belt  
5. Drain the coolant from the system to below the level  
of the coolant sensor and remove the sensor as  
described in Section 4.4.6.b., steps 1 and 2 below.  
WARNING  
Beware of moving poly V-belt and belt  
driven components.  
6. With the sensor removed from the radiator and 12  
VDC applied to terminal B, the circuit between  
terminals A and C should be open.  
WARNING  
Beware of pinch points.  
NOTE  
A frayed, cracked or worn poly V-belt must be  
replaced. After installing a new belt, check the  
adjustment after running the unit for three or  
four hours. This will allow for the initial stretch,  
which is common on new belts. Once this initial  
stretch has taken place, the belt should be  
checked at regular intervals.  
Figure 4-2 Low Coolant Sensor  
CAUTION  
Never open the radiator cap when the  
coolant is hot.  
The poly V-belt is driven by a sheave on the engine  
crankshaft. Its two functions are: (1) to drive the radiator  
fan and (2) to drive the water pump.  
To replace the poly V-belt, perform the following steps:  
1. Using the proper size socket, slowly rotate the crank  
on the crank pulley nut. At the same time, use a flat,  
blunt object to guide the belt off the crank pulley  
towards radiator. Be careful not to damage grooves  
on the pulley.  
b. Replacing the Low Coolant Sensor (LCS)  
1. Loosen the radiator drain pet cock and drain coolant  
to a point below the sensor into an approved  
container.  
2. Unplug the harness and remove sensor from  
radiator header.  
2. Replace the poly V-Belt by positioning the belt on the  
water pump pulley, and while rotating the engine (as  
in step 1), use a flat, blunt object to guide the belt  
onto the crank pulley. Be careful not to damage  
grooves on the pulley or belt.  
3. Apply Teflon thread tape or thread sealer to the LCS  
threads and install sensor.  
T--343  
4--4  
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4.4.10 Lube Oil Filter  
c. Service Procedure (Dry Element)  
The primary oil filter is located near the radiator fan  
(see Figure 1-4).  
1. Stop the engine, remove air cleaner and install a  
new element. Refer to Figure 4-3.  
1. After warming up the engine, stop engine, remove  
drain plug from oil reservoir and drain engine lube oil.  
1
1
2. Replace filters. Lightly oil gasket on filter before  
installing.  
2
3
3. Add lube oil (Refer to paragraph 1.10.f).  
4. Warm up engine and check for leaks.  
4.4.11 Engine Speed  
The engine speed is electronically controlled. DO NOT  
ATTEMPT TO ADJUST ENGINE SPEED.  
5
4
4.4.12 Replacing the Engine Speed Sensor  
1. Disconnect the plug to the sensor.  
2. Remove the bolt securing the sensor to the housing.  
3. Remove the sensor from the housing.  
4. Clean the recess in the housing to ensure that the  
sensor seats properly when re-installed.  
1. Air Outlet  
2. Air Cleaner Body  
3. Air Inlet  
4. Cap Clamp  
5. Air Filter Indicator  
5. Re-install by sensor, replace the securing bolt and  
connect the plug to the sensor.  
Figure 4-3 Air Filter (Dry Element Type)  
4.4.13 Engine Air Cleaner  
d. Service Procedure (Oil Type)  
a. Inspection  
Inspect the oil cup (see Figure 4-4) at regular intervals.  
Initially, inspect daily or as often as conditions require.  
Never allow more than 1/2 inch (12.7 mm) of dirt deposit  
in the cup. More than 1/2 inch accumulation could result  
in oil and dirt carrying over into the engine, causing  
accelerated engine wear. Heavily contaminated oil will  
not allow the air cleaner to function properly.  
The dry element or oil bath air cleaner should be  
inspected regularly for leaks. A damaged air cleaner or  
hose can seriously affect the performance and life of the  
engine. The air cleaner is designed to effectively  
remove contaminants from the air stream entering the  
engine. An excessive accumulation of these  
contaminants in the air cleaner will impair its operation.  
Therefore, a service schedule must be set up and  
followed.  
CAUTION  
Always cover the engine inlet tube while the  
air cleaner is being serviced.  
1. Check all connections for mechanical tightness. Be  
sure the air cleaner outlet pipe is not fractured.  
2. In case of leakage and if adjustment does not correct  
the trouble, replace necessary parts or gaskets.  
Swollen or distorted gaskets must always be  
replaced.  
Stop the engine and remove the oil cup from the air  
cleaner. Dispose of the oil in an environmentally safe  
manner. Remove the inner cup from the oil cup and  
clean both cups.  
b. Air Filter Indicator  
The air filter indicator is mounted on the unit frame and  
connected to the engine air intake. Its function is to  
indicate when the air cleaner element requires  
replacing. In operation: When a plugged air cleaner  
decreases intake manifold pressure to 500 mm (20”)  
WG, the indicator moves to the red line. The air cleaner  
element should be replaced and the indicator reset by  
pressing the reset button.  
Reassemble and fill both oil cups to the indicated level  
with oil specified in paragraph 1.10.f.  
T-343  
4--5  
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CAUTION  
Do not underfill or overfill the oil bath cups.  
Overfilling of cups causes loss of capacity;  
underfilling cups causes lack of filtering  
efficiency.  
1
2
3
4
5
1
1. Screw  
2. Breather Cover  
3. Bleed Hole  
4. Breather Valve  
5. Breather Tube  
2
3
Figure 4-5 Engine Crankcase Breather  
4.4.15 Servicing Intake Heater  
1. Remove harness connection from heater.  
2. Remove intake transition mounting hardware.  
3. Remove intake transition, heater and both gaskets.  
4
5
6
4. Clean old gasket material off the transition and  
manifold mounting services.  
1. Air Inlet Hood  
2. Air Cleaner Body  
3. Cap Clamp  
4. Inner Oil Cup  
5. Gasket  
6. Oil Cup  
5. Install new heater with a new gasket on either side.  
6. Assemble transition to heater and torque mounting  
hardware (refer to the engine manual for torque  
values).  
Figure 4-4 Air Filter (Oil Bath Type)  
e. Service - Body Assembly  
7. Reconnect harness to heater connection point.  
8. Coat stud on heater with protective coating.  
The lower portion of the air cleaner should be inspected  
each time the oil cup is inspected or serviced. If there is  
any sign of contaminant buildup or plugging, the body  
assembly should be removed and back flushed.  
4.5 SERVICING THE ALTERNATING CURRENT  
GENERATOR  
4.5.1 Preventative Maintenance and  
At least once a year or at regular engine service periods,  
remove the entire air cleaner and perform the following:  
Operating Precautions  
Costly repairs and down time can usually be prevented  
by operating electrical equipment under conditions that  
are compatible with those under which the equipment  
was designed. Follow the instructions outlined below to  
insure maximum efficiency of the electrical equipment.  
1. Remove oil cups. Check and clean center tube.  
WARNING  
a. Cooling  
Do not use gasoline to clean air cleaner  
parts.  
Keep all cooling parts clean. DO NOT EXCEED  
TEMPERATURE RISE OF 80C (176F) ABOVE A 40C  
(104F) AMBIENT. This ensures that the NEMA Class  
“F” insulation will not be damaged. DO NOT EXCEED  
RATED LOAD except as specified for the equipment.  
OPERATE GENERATOR AT RATED SPEED. Failure  
to operate generators at rated load or speed will cause  
overheating and possible damage to windings due to  
over voltage or current.  
2. Pump solvent through the air outlet with sufficient  
force and volume to produce a hard, even stream out  
of the bottom of the body assembly. Reverse flush  
until all foreign material is removed.  
4.4.14 Engine Crankcase Breather  
The engine uses a closed type breather with the  
breather line attached to the cylinder head cover (see  
Figure 4-5). It is not necessary to dissemble valve style  
elements for cleaning. However, the bleed hole should  
be checked to ensure it is free of obstruction. Check  
once a year or at every 3,000 hours maintenance  
interval, whichever comes first.  
T--343  
4--6  
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b. Generator Windings (Drying)  
Should the generator fail to build up voltage after being  
disassembled for any reason, a momentary short-circuit  
of any two generator leads (L1, L2 and L3) while  
generator is running should be sufficient to correct this  
condition.  
WARNING  
Do not direct water or steam into the  
generator openings. Do not allow any soap  
and water solutions to enter the alternator.  
CAUTION  
When trying to restore residual magnetism,  
be sure to wear safety glasses and  
non-conductive gloves. Use an insulated 12  
gauge (or higher) jumper wire. Cutoff all but  
a few strands from both ends of the jumper  
wire to help prevent fusing.  
WARNING  
High voltage (dielectric) testing must not be  
performed to the machine without first  
observing NEMA rules. The insulation of  
this generator winding may be safely  
checked by using a megger. A high megger  
reading indicates good insulation.  
As an alternate method, apply either an alternating  
current or a direct current voltage of approximately 20  
volts to any two generator leads (L1, L2 and L3) while  
generator is running. Do not make a positive  
connection, but rather touch the leads together until the  
generator voltage begins to rise, then remove. Insert a  
30 ampere fuse into the circuit to prevent any damage in  
case the build-up voltage is not removed quickly  
enough. Reflash field if generator output voltage does  
not build up.  
Generators that have been in transit, recently steam  
cleaned or in storage for long periods may be subjected  
to extreme temperature and moisture changes. This  
can cause excessive condensation, and the generator  
windings should be thoroughly dried out before bringing  
the generator up to full nameplate voltage. If this  
precaution is not taken, serious damage to the  
generator can result. The following steps should be  
taken to effectively dry the generator windings:  
b. Winding Insulation Testing  
Continuity test results for the stator winding tests are  
provided in the following table:  
1. Dry windings by placing generator in drying oven or  
hot room, or dry with warm air blower directed  
through windings.  
Wire  
Pair  
Wire  
Pair  
Wire  
Pair  
Ohm*  
Ohm*  
Ohm*  
2. If the generator has been operated and is being  
placed into storage for any period of time, a P.D.  
George #11127 type air-dry fungus resistant varnish  
should be applied.  
T10-T1  
T10-T2  
T10-T3  
T10-T4  
T10-T5  
T10-T6  
T10-T7  
T10-T8  
T10-T9  
T1-T2  
I
I
I
I
I
T1-T8  
T1-T9  
T2-T3  
T2-T4  
T2-T5  
T2-T6  
T2-T7  
T2-T8  
T2-T9  
T3-T4  
T3-T5  
T3-T6  
T3-T7  
T3-T8  
T3-T9  
I
I
I
I
0
I
I
I
I
I
I
0
I
I
I
T4-T5  
T4-T6  
T4-T7  
T4-T8  
T4-T9  
T5-T6  
T5-T7  
T5-T8  
T5-T9  
T6-T7  
T6-T8  
T6-T9  
T7-T8  
T7-T9  
T8-T9  
I
I
I
I
I
I
I
I
I
I
I
I
0
0
0
The finest insulation job can be very quickly broken  
down by carelessly applying high voltage to windings in  
a moisture saturated condition. Failure to follow these  
guidelines could easily cause a breakdown, making it  
necessary to return the generator to the factory for  
repair.  
I
0
0
0
I
I
0
I
c. Rotor Damage  
If a rotor becomes defective, it should be returned to the  
factory with full nameplate data. To repair a rotor, the  
special tooling and technique of the factory are  
necessary and essential. Should a failure occur, Carrier  
Transicold should be notified immediately and steps will  
be taken to return the generator for service.  
T1-T3  
T1-T4  
T1-T5  
T1-T6  
d. Terminal Strip Cleaning  
I
I
Open terminal box. Remove dust and debris, and clean  
terminal strip with wire brush. Reapply protective  
coating.  
T1-T7  
* 0 = no resistance (closed circuit) & I = infinite resistance (open circuit)  
4.5.2 Generator Repair/Test Procedures  
a. Restoring Residual Magnetism  
The direct current (DC) necessary to magnetize the  
alternator field is obtained from the exciter. Initially, upon  
starting the generator, current flow and voltage are  
induced into the exciter armature by the magnetic lines  
of force set up by the residual magnetism of the exciter  
field poles.  
Residual magnetism of the exciter field poles may be  
lost or weakened by a strong neutralizing magnetic field  
from any source, or if the generator is not operated for a  
long period of time.  
T-343  
4--7  
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c. Diode Testing  
3. Remove the two cap screws that secure each diode  
assembly to the exiter. Once this procedure is  
complete, the diode assemblies are free for removal.  
The rectifier diode assemblies can be tested, and if  
damaged, replaced. Over current, over voltage, over  
speed, or reverse currents can damage the assembly or  
diodes. To remove the diode assemblies and perform  
diode testing, do the following:  
4. A forward diode should have a low resistance when  
the + of an ohm meter is connected to the exciter  
rotor lead connection (anode) and the - to the diode  
bridge (cathode), and a high resistance when the  
polarity of the ohmmeter is reversed.  
1. Remove the bearing cover by removingthe four bolts  
(see Figure 4-6). Both the bearing and diode  
assemblies will be visible.  
5. A reverse diode should have a high resistance when  
the + of an ohm meter is connected to the exciter  
rotor lead connection (anode) and the - to the diode  
bridge (cathode), and a low resistance when the  
polarity of the ohmmeter is reversed.  
a.  
b.  
6. If both resistances are high or both are low, the diode  
is defective and the diode assembly should be  
replaced.  
c.  
d.  
4.5.3 Bearing Replacement  
When  
operated  
under  
normal  
conditions,  
factory--lubricated shielded bearings will normally  
provide years of trouble--free service. Excessive  
bearing load and adverse environment conditions will  
greatly shorten bearing life. To remove the bearings, do  
the following:  
g.  
f.  
e.  
1. Remove bearing cover (See Figure 4-6).  
2. Remove bearing with a bearing or wheel puller.  
a. Rectifier Flange  
b. Rectifier Assembly  
c. Rectifier Bolt  
e. Bearing Cover Bolt  
f. Bearing  
g. Bearing Cover Flange  
3. Install new bearing. Ball bearings are pre-lubricated  
and require no additional lubrication for the life of the  
bearing.  
d. Bearing Cover  
Figure 4-6 Rectifier Removal  
4. Coat mating surface of bearing cover flange with  
anti-corrosion compound (Tef-Gel, Carrier Part  
Number 02-00083-00). Replace bearing cover.  
4.5.4 Generator Removal and Installation  
2. Mark and disconnect the alternator rotor wires at the  
rectifier screw terminals. Note that the terminals are  
marked with red paint for theforward diodeassembly  
and black for the reverse diode assembly. Mark and  
disconnect the exciter leads from the double spade  
terminals (see Figure 4-7).  
a. Removing the Generator  
1. Remove covers and ground wire from frame of  
generator set.  
a.  
a.  
2. Remove connection box cover and disconnect  
power leads.  
b.  
3. Remove screen cover and generator exhaust baffle  
from coupling end of generator.  
d.  
4. Remove the six 8mm hex head bolts and washers  
that secure the generator drive disc to the engine  
flywheel. Turn bolts counter-clockwise with offset  
wrench to start, then use flexible shaft and socket  
assembly for removal of bolts.  
c.  
5. Remove the twelve 3/8 inch hex head cap screws  
and washers that secure generator frame to engine  
flywheel housing.  
b.  
d.  
6. Remove the four 5/8 inch bolts that secure the  
generator mounting feet to the shockmount bracket,  
then remove generator.  
a. Diode Assembly  
b. Diode Bridge  
c. Exciter Rotor Lead Connection  
d. Alternator Rotor Lead Connection  
b. Installing the Generator  
NOTE  
For torque values refer to paragraph 4.7.  
Figure 4-7 A-C Generator Rectifier Assembly  
T--343  
4--8  
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The generator is a single bearing type, which means the  
shaft end of the rotor floats. Before installing the  
generator, rotate shaft and check if bearing rotates.  
1. Brush anti-seize lubricant (lube-plate) on the face of  
flywheel.  
2. Move generator into position and line up with the  
holes on housing and flywheel. If required, turn  
crankshaft to align threaded holes in flywheel with  
generator drive disc mounting holes.  
5. Secure the remaining bolts and washers (3/8 inch);  
torque the 12 bolts in a staggered pattern.  
6. Install and torque generator mounting bracket bolts  
(5/8 inch). Install screen cover, generator exhaust  
baffle, power leads, ground wiring and generator  
cover. Install new gasket when installing generator  
connection box cover.  
4.6 GENERAL GENERATOR SET MAINTENANCE  
4.6.1 Maintenance Of Painted Surfaces  
The unit is protected against the corrosive atmosphere  
in which it normally operates by a special paint system.  
However, if the paint system is damaged, the base  
metal can corrode. If the paint system is scratched or  
damaged, do the following:  
CAUTION  
The rotor should not be pulled out from the  
alternator more than 0.75 inches. Damage  
to the bearing and windings may result.  
a. Clean area to bare metal using a wire brush, emery  
paper or equivalent cleaning method.  
3. Start the 8mm bolts (by hand) through the disc plate  
and into the flywheel. Once alignment is made  
torque the six bolts.  
b. Immediately following cleaning, spray or brush on a  
zinc rich primer.  
4. Secure two of the housing bolts (3/8 inch) on the top  
and bottom of the generator housing to draw the  
mating flanges together.  
c. After the primer has dried, spray or brush on finish  
coat of paint to match original unit color.  
TRUSS  
1
6
7
1
2
2
3
4
TRUSS  
5
FRAME  
4
5
UNIDRIVE  
1. Bolt  
5. Isolator  
6. Locknut  
7. Nutplate  
2. Lock Washer  
3. Flat Washer  
4. Heat Shield  
Figure 4-8 Truss and Isolator  
T-343  
4--9  
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4.6.2 Check and Replace Isolators/Shockmounts  
a. Replacement Criteria  
c. Generator Shockmount Replacement  
1. Use the two lift eyes to lift and support the engine.  
2. Remove shockmount hardware.  
3. Raise the generator just enough to remove the  
CAUTION  
shockmounts (Figure 4-10 item 7).  
4. Install new shockmounts.  
5. Lower the engine enough to assemble hardware as  
shown and torque. Refer to paragraph 4.7 for torque  
values.  
Continued  
operation  
with  
failed  
shockmounts may result in engine or  
generator damage.  
6. Remove chains from the lift eyes.  
When a shockmount has been cut, split, abraded or has  
flared due to normal deterioration, it must be replaced.  
Damage to the mounts may not be visible when installed  
and under load from the component. To correctly  
inspect shockmounts, they must be removed.  
GENERATOR  
4
3
b. Engine Isolator/Shockmount Replacement  
1. Use the two lift eyes to lift and support the engine.  
4
3
2
5
2. Remove truss, unidrive isolator and all hardware as  
shown in Figure 4-9, if equipped.  
3. Remove all hardware as shown in Figure 4-9.  
6
3
1
4. Raise the engine just enough to remove the  
shockmounts (Figure 4-9 item 4).  
5. Install new shockmounts.  
NOTE  
11  
8
For torque values refer to paragraph 4.7.  
9
12  
6. Lower the engine enough to assemble hardware as  
shown and torque per paragraph 4.7.  
10  
7
7. Remove chains from the lift eyes.  
ENGINE  
INSTALL MOUNT  
WITH LARGE  
FLARE AT TOP  
FRAME  
1
12  
13  
7
8
2
FRAME  
3
1. Screw (5/8)  
8. Support Plate  
2. Mounting Base  
3 Flat Washer (5/8)  
4. Locknut (5/8)  
5. Locknut (1/2)  
6. Flat Washer (1/2)  
7. Shockmount  
9. Snubbing Washer  
10. Screw (1/2)  
11. Screw (3/8)  
12. Flat Washer (3/8)  
13. Locknut (3/8)  
4
5
FRAME  
3
Figure 4-10 Generator Shockmounts  
1. Bolt  
2. Lock Washer  
3. Snubbing Washer  
4. Shockmount  
5. Flat Washer  
Figure 4-9 Engine Shockmounts  
T--343  
4--10  
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4.7 UNIDRIVE TORQUE REQUIREMENTS  
NOTES  
SST is an abbreviation for 300 Series Corrosion  
Resistant Steel.  
Extensive damage may occur if the proper hardware is  
not used and/or proper procedures are not followed  
when working with the unidrive assembly. Periodic  
inspection of hardware and bolt torque is recommended  
to ensure the integrity of the unidrive.  
Loctite #242 or an equivalent product should be  
used on ALL hardware shown in Figure 4-11.  
Torque value and hardware requirements for unidrive  
assembly are provided in Figure 4-11.  
ENGINE & GENERATOR SHOCKMOUNTS/ISOLATORS - TOP VIEW  
1/2-13 x 3-1/2 lg - SST  
(2 Req’d) 75 ft-lb (10.37 mkg)  
TRUSS AND ISOLATOR  
3/8-16 X 1-1/4 lg - SST  
(4 Req’d) 30--39 ft-lb (4.15--5.39 mkg)  
M8 X 1-1/4 lg - STL  
(4 Req’d) 11 ft-lb (1.5 mkg)  
Nut, Self Lock 3/8-16 - SST  
(2 Req’d) 30--39 ft-lb (4.15--5.39 mkg)  
3/8-16 x 1 lg - SST  
(4 Req’d) 25 ft-lb (3.46 mkg)  
5/8-18 x 2.00 lg - SST  
(4 Req’d) 91--95 ft-lb (1.58--13.13 mkg)  
ENGINE MOUNT - RIGHT SIDE VIEW  
UNIDRIVE - SECTIONAL VIEW  
Engine Flywheel  
3/8-16 x 1-1/2 lg - SST  
(12 Req’d) 25 ft-lb (3.46 mkg)  
M8 x 15 MM lg - SST  
(6 Req’d) 19 ft-lb (2.49 mkg)  
Generator Disc Drive  
5/8-11 x 4.00 lg - SST  
(2 Req’d) 90 ft-lb (9.68 mkg)  
Figure 4-11 Unidrive Torque Requirements  
T-343  
4--11  
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SECTION 5  
SCHEMATICS  
5.1 INTRODUCTION  
This section contains the 12-volt DC control circuit schematics, the 460 volt alternating current generator schematic  
and the 230 volt alternating current generator schematic. To identify the schematics applicable to your PID number  
refer to Table 1-1.  
Based On Drawings 62-11411-00 Rev-  
62-11414-00 Rev -  
Figure 5-1 Schematic Diagram - Legend  
(Applies to Figures 5-2 thru 5-4)  
T-343  
5--1  
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IH  
Based On Drawings 62-11411-00 Rev-  
62-11414-00 Rev -  
Figure 5-2 Schematic Diagram  
(For Applicability, Refer to Table 1-1)  
T-343  
5--2  
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NOTE:  
WHEN PE IS NOT FITTED, OUTPUT GROUND WIRES  
ARE CONNECTED DIRECTLY AT GENERATOR TERMI-  
NAL STRIP TERMINAL T10.  
Based On Drawings 62-11411-00 Rev-  
62-11414-00 Rev -  
Figure 5-3 Schematic Diagram 460 Volt Alternating Current Generator  
(For Applicability, Refer to Table 1-1)  
T-343  
5--3  
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Based On Drawings 62-11411-00 Rev-  
62-11414-00 Rev -  
Figure 5-4 Schematic Diagram 230 Volt Alternating Current Generator  
(For Applicability, Refer to Table 1-1)  
T-343  
5--4  
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Based On Drawing 62-11413-00 Rev A  
Figure 5-5 Schematic Diagram - Legend  
(Applies to Figures 5-6, 5-7)  
T-343  
5--5  
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Based On Drawing 62-11413-00 Rev A  
Figure 5-6 Schematic Diagram  
(For Applicability, Refer to Table 1-1)  
T-343  
5--6  
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Based On Drawing 62-11413-00 Rev A  
Figure 5-7 Schematic Diagram 460 Volt Alternating Current Generator  
(For Applicability, Refer to Table 1-1)  
T-343  
5--7  
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INDEX  
A
F
First Aid, Safety--i  
AC Generator Description, 1--5  
Fuel Filter, 4--1  
Air Filter Indicator, 4--5  
Fuel Pump Filter Service, 4--1  
Fuel System, 1--5  
Ammeter, 1--7  
Auto Restart Module, 1--6  
Auto Restart Preset Values, 1--9  
Auto Restart Sequencing, 1--9  
G
Gauges and Senders, 1--6  
Generator Principle of Operation, 1--5  
Generator Removal and Installation, 4--8  
Generator Repair, 4--7  
B
Battery Charger, 1--6  
Generator Service, 4--6  
Battery Service, 4--1  
Generator Set Installation, 2--1  
Generator Set Removal, 2--2  
Generator Test Procedures, 4--7  
Generator Windings, 4--7  
Bearing Replacement, 4--8  
Bleeding the Fuel System, 4--1  
C
Control Circuit Operation, 2--4  
H
Control Panel, 1--6  
Hazard Label Identification, Safety--i  
Cooling System, 4--1  
Heater Switch Service, 4--4  
I
D
Ignition Switch, 1--7  
Diode Testing, 4--8  
In--Line Fuel Filter, 4--1  
Insulation Testing, 4--7  
Intake Heater Switch, 1--7  
Dry Element Air Filter, 4--5  
E
L
Electronic Governor Module, 1--5  
Engine Air Cleaner, 4--5  
Low Coolant Sensor, 1--6  
Engine Air System, 1--5  
Low Coolant Sensor Service, 4--4  
Low Oil Pressure Switch Service, 4--4  
Lube Oil Filter, 1--5, 4--5  
Engine Crankcase Breather, 4--6  
Engine Data, 1--11  
Engine Description, 1--5  
Engine Isolator/Shockmount Replacement, 4--10  
Engine Screw Threads, 1--5  
Engine Service, 4--1  
M
Maintenance Precautions, Safety--i  
Manual Switches, 1--7  
Meters, 1--7  
Engine Speed, 4--5  
Engine Speed Sensor Replacement, 4--5  
Model Chart, 1--2  
T-343  
Index--1  
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INDEX (Continued)  
O
S
Safety Devices, 1--7  
Oil Air Filter, 4--5  
Safety Notices, Safety--i  
Safety Summary, Safety--i  
Schematics, 5--1  
Operating Controls and Instruments, 1--6  
Operating Precautions, Safety--i  
Sequence of Operation, 2--4  
Servicing Intake Heater, 4--6  
Starting Insturctions, 2--3  
Stopping Instructions, 2--3  
P
T
Poly V--Belt Service, 4--4  
Post--Start Inspection, 2--3  
Pre--Start Inspection, 2--3  
Torque Requirements, 4--11  
Total Time Meter, 1--7  
Troubleshooting, 3--1  
U
Preventative Maintenance and  
Operating Precautions , 4--6  
Unit Introduction, 1--1  
Preventative Maintenance Schedule, 4--1, 4--2  
Unit Specifications, 1--11  
T-343  
Index--2  
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Carrier Transicold Division,  
Carrier Corporation  
Container Products Group  
P.O. Box 4805  
Syracuse, N.Y. 13221 U.S A  
A member of the United Technologies Corporation family. Stock symbol UTX  
©2008 Carrier Corporation D Printed in U. S. A. 0908  
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