Harbor Freight Tools Power Hammer 93853 User Manual

DEMOLITION HAMMER  
Model 93853  
ASSEMBLY AND OPERATING INSTRUCTIONS  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
TO PREVENT SERIOUS INJURY,  
READ AND UNDERSTAND ALL WARNINGS  
AND INSTRUCTIONS BEFORE USE.  
Copyright© 2006 by Harbor Freight Tools®. All rights reserved. No portion of this  
manual or any artwork contained herein may be reproduced in any shape or form  
without the express written consent of Harbor FreightTools.  
For technical questions, please call 1-800-444-3353.  
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2.  
3.  
Do not operate power tools in explosive atmospheres, such as in the  
presence of flammable liquids, gases, or dust. Power tools create sparks  
which may ignite the dust or fumes.  
Keep bystanders, children, and visitors away while operating a power tool.  
Distractions can cause you to lose control. Protect others in the work area from  
debris such as chips and sparks. Provide barriers or shields as needed.  
ELECTRICAL SAFETY  
4.  
Grounded tools must be plugged into an outlet properly installed and  
grounded in accordance with all codes and ordinances. Never remove the  
grounding prong or modify the plug in any way. Do not use any adapter  
plugs. Check with a qualified electrician if you are in doubt as to whether  
the outlet is properly grounded. If the tools should electrically malfunction or  
break down, grounding provides a low resistance path to carry electricity away  
from the user.  
5.  
6.  
Double insulated tools are equipped with a polarized plug (one blade is  
wider than the other). This plug will fit in a polarized outlet only one way. If  
the plug does not fit fully in the outlet, reverse the plug. If it still does not  
fit, contact a qualified electrician to install a polarized outlet. Do not  
change the plug in any way. Double insulation  
eliminates the need for the  
three wire grounded power cord and grounded power supply system.  
Avoid body contact with grounded surfaces such as pipes, radiators,  
ranges, and refrigerators. There is an increased risk of electric shock if your  
body is grounded.  
7.  
8.  
Do not expose power tools to rain or wet conditions. Water entering a power  
tool will increase the risk of electric shock.  
Do not abuse the Power Cord. Never use the Power Cord to carry the tools  
or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,  
sharp edges, or moving parts. Replace damaged Power Cords immediately.  
Damaged Power Cords increase the risk of electric shock.  
9.  
When operating a power tool outside, use an outdoor extension cord  
marked “W-A” or “W”. These extension cords are rated for outdoor use, and  
reduce the risk of electric shock.  
PERSONAL SAFETY  
10.  
Stay alert. Watch what you are doing, and use common sense when  
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operating a power tool. Do not use a power tool while tired or under the  
influence of drugs, alcohol, or medication. A moment of inattention while  
operating power tools may result in serious personal injury.  
11.  
Dress properly. Do not wear loose clothing or jewelry. Contain long hair.  
Keep your hair, clothing, and gloves away from moving parts. Loose  
clothes, jewelry, or long hair can be caught in moving parts.  
12.  
13.  
Avoid accidental starting. Be sure the Power Switch is off before plugging  
in. Plugging in power tools with the Power Switch on invites accidents.  
Remove adjusting keys or wrenches before turning the power tool on. A  
wrench or a key that is left attached to a rotating part of the power tool may  
result in personal injury.  
14.  
15.  
Do not overreach. Keep proper footing and balance at all times. Proper  
footing and balance enables better control of the power tool in unexpected  
situations.  
Use safety equipment. Always wear eye protection. Dust mask, non-  
skid safety shoes, hard hat, or hearing protection must be used for  
appropriate conditions.  
TOOL USE AND CARE  
16.  
Use clamps (not included) or other practical ways to secure and support  
the workpiece to a stable platform. Holding the work by hand or against your  
body is unstable and may lead to loss of control.  
17.  
18.  
Do not force the tool. Use the correct tool for your application. The correct  
tool will do the job better and safer at the rate for which it is designed.  
Do not use the power tool if the Power Switch does not turn it on or off.  
Any tool that cannot be controlled with the Power Switch is dangerous and must  
be replaced.  
19.  
Disconnect the Power Cord Plug from the power source before making any  
adjustments, changing accessories, or storing the tool. Such preventive  
safety measures reduce the risk of starting the tool accidentally.  
20.  
21.  
Store idle tools out of reach of children and other untrained persons. Tools  
are dangerous in the hands of untrained users.  
Maintain tools with care. Keep cutting tools sharp and clean. Properly  
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maintained tools with a sharp cutting edge are less likely to bind and are easier  
to control. Do not use a damaged tool. Tag damaged tools “Do not use” until  
repaired.  
22.  
23.  
Check for misalignment or binding of moving parts, breakage of parts, and  
any other condition that may affect the tool’s operation. If damaged, have  
the tool serviced before using. Many accidents are caused by poorly  
maintained tools.  
Use only accessories that are recommended by the manufacturer for your  
model. Accessories that may be suitable for one tool may become hazardous  
when used on another tool.  
SERVICE  
24.  
25.  
Tool service must be performed only by qualified repair personnel. Service  
or maintenance performed by unqualified personnel could result in a risk of injury.  
When servicing a tool, use only identical replacement parts. Follow  
instructions in the “Inspection, Maintenance, And Cleaningsection of this  
manual. Use of unauthorized parts or failure to follow maintenance instructions  
may create a risk of electric shock or injury.  
SPECIFIC SAFETY RULES  
1.  
2.  
Maintain labels and nameplates on the Demolition Hammer. These carry  
important information. If unreadable or missing, contact Harbor Freight Tools for  
a replacement.  
Always wear ANSI-approved safety impact eye glasses and a full  
face shield when using the Demolition Hammer. Also wear heavy  
duty steel-toe boots, hearing protection, dust mask or respirator, and  
heavy duty work gloves. Using personal safety devices reduce the risk for  
injury.  
3.  
4.  
Maintain a safe working environment. Keep the work area well lit. Make sure  
there is adequate surrounding workspace. Always keep the work area free of  
obstructions, grease, oil, trash, and other debris. Do not use a power tool in  
areas near flammable chemicals, dusts, and vapors. Do not use this product in  
a damp or wet location.  
Avoid unintentional starting. Make sure you are prepared to begin work  
before turning on the Demolition Hammer.  
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5.  
6.  
7.  
Do not force the Demolition Hammer. This tool will do the work better and  
safer at the speed and capacity for which it was designed.  
WARNING! Keep hands, fingers, and feet safety away from the cutting  
area.  
Never leave the Demolition Hammer unattended when it is plugged into  
an electrical outlet. Turn off the tool, and unplug it from its electrical outlet  
before leaving.  
8.  
Before using the Demolition Hammer, check to make sure the Chisel is  
properly mounted in the Slider of the tool. Make sure the Chisel is sharp, and  
is not cracked or bent.  
9.  
Industrial applications must follow OSHA guidelines.  
10.  
Always hold the Demolition Hammer with both hands by its insulated  
gripping surfaces; this offers protection against electrical shock, if the tool’s  
Chisel contacts hidden wiring or its own Power Cord.  
11.  
12.  
Do not drill or break into existing walls, floors, or other blind areas where  
electrical wiring may exist. If this situation is unavoidable, disconnect all fuses  
or circuit breakers feeding the worksite.  
Use a metal detector to determine if there are gas or water pipes hidden in  
the work area or call the local utility company for assistance before  
beginning the operation. Striking or cutting into a gas line will result in  
explosion. Water entering an electrical device may cause electrocution.  
13.  
14.  
Position yourself to avoid being caught between the Demolition Hammer or  
Auxiliary Handle and walls or posts. Should the Chisel become bound or  
jammed in the work, the reaction of the tool could crush your hand or leg.  
Do not strike the Chisel with a handheld hammer or sledge hammer when  
attempting to dislodge a bound or jammed Chisel. Fragments of metal from  
the Chisel could dislodge and strike you or bystanders.  
15.  
16.  
Never place the Demolition Hammer down until the Motor has come to a  
complete stop.  
The Chisel may become hot after prolonged use. When removing the Chisel  
from the tool, avoid contact with skin and use proper protective gloves when  
grasping the Chisel.  
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17.  
18.  
Do not force the Chisel into the workpiece when cutting. Apply moderate  
pressure, allowing the Chisel to cut without being forced.  
Never attempt to remove material stuck in the moving parts of the  
Demolition Hammer while it is plugged in and running.  
19.  
20.  
21.  
Always unplug the Demolition Hammer from its electrical outlet before  
performing and inspection, maintenance, or cleaning procedures.  
Keep this product and all other tools and equipment away from children and  
other unauthorized people. Do not allow spectators in the work area.  
Performance of this tool (if powered by line voltage) may vary depending on  
variations in local line voltage. Extension cord usage may also affect tool  
performance.  
22.  
23.  
Use the right tool for the job. Do not attempt to force a small tool to do the  
work of a larger industrial tool. There are certain applications for which  
this tool was designed. It will do the job better and more safely at the rate for  
which it was intended. Do not modify this tool, and do not use this tool for a  
purpose for which it is not intended.  
WARNING! Some dust created by power sanding, sawing, grinding, drilling,  
and other construction activities, contain chemicals known (to the State of  
California) to cause cancer, birth defects or other reproductive harm. Some  
examples of these chemicals are: lead from lead-based paints, crystalline silica  
from bricks and cement or other masonry products, arsenic and chromium from  
chemically treated lumber. Your risk from these exposures varies, depending on  
how often you do this type of work. To reduce your exposure to these chemicals:  
work in a well ventilated area, and work with approved safety equipment, such as  
those dust masks that are specially designed to filter out microscopic particles.  
(California Health & Safety Code § 25249.5, et seq.)  
24.  
25.  
WARNING! People with pacemakers should consult their physician(s)  
before using this product. Operation of electrical equipment in close proximity to  
a heart pacemaker could cause interference or failure of the pacemaker.  
WARNING! The warnings and cautions discussed in this manual cannot  
cover all possible conditions and situations that may occur. It must be understood  
by the operator that common sense and caution are factors which cannot be built  
into this product, but must be supplied by the operator.  
SAVE THESE INSTRUCTIONS  
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GROUNDING  
WARNING!  
Improperly connecting the grounding wire can result in the risk of electric shock.  
Check with a qualified electrician if you are in doubt as to whether the outlet is  
properly grounded. Do not modify the power cord plug provided with the tool.  
Never remove the grounding prong from the plug. Do not use the tool if the  
power cord or plug is damaged. If damaged, have it repaired by a service facility  
before use. If the plug will not fit the outlet, have a proper outlet installed by a  
qualified electrician.  
GROUNDED TOOLS:TOOLS WITH THREE PRONG PLUGS  
1.  
Tools marked with “Grounding Required” have a three wire cord and three prong  
grounding plug. The plug must be connected to a properly grounded outlet. If  
the tool should electrically malfunction or break down, grounding provides a low  
resistance path to carry electricity away from the user, reducing the risk of electric  
shock. (See Figure A.)  
2.  
3.  
The grounding prong in the plug is connected through the green wire inside the  
cord to the grounding system in the tool. The green wire in the cord must be the  
only wire connected to the tool’s grounding system and must never be attached  
to an electrically “live” terminal. (See Figure A.)  
Your tool must be plugged into an appropriate outlet, properly installed and  
grounded in accordance with all codes and ordinances. The plug and outlet  
should look like those in the following illustration. (See Figure A.)  
THIS PRODUCT  
DOES NOT USE A  
3-PRONG PLUG  
120 VOLT,  
GROUNDED,  
ELECTRICAL OUTLET  
FIGURE A  
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GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS  
1.  
Tools marked with “Grounding Required” have a three wire cord and three prong  
grounding plug. The plug must be connected to a properly grounded outlet. If  
the tool should electrically malfunction or break down, grounding provides a low  
resistance path to carry electricity away from the user, reducing the risk of electric  
shock. (See Figure B.)  
2.  
3.  
The grounding prong in the plug is connected through the green wire inside the  
cord to the grounding system in the tool. The green wire in the cord must be the  
only wire connected to the tool’s grounding system and must never be attached  
to an electrically “live” terminal. (See Figure B.)  
Your tool must be plugged into an appropriate outlet, properly installed and  
grounded in accordance with all codes and ordinances. The plug and outlet  
should look like those in the following illustration. (See Figure B.)  
THIS PRODUCT  
USES A  
2-PRONG PLUG  
120 VOLT,  
GROUNDED,  
ELECTRICAL OUTLETS  
FIGURE B  
EXTENSION CORDS  
1.  
2.  
Grounded tools require a three wire extension cord. Double Insulated tools  
can use either a two or three wire extension cord.  
As the distance from the supply outlet increases, you must use a heavier gauge  
extension cord. Using extension cords with inadequately sized wire causes a  
serious drop in voltage, resulting in loss of power and possible tool damage.  
(See Figure C, next page.)  
3.  
4.  
The smaller the gauge number of the wire, the greater the capacity of the cord.  
For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.  
(See Figure C.)  
When using more than one extension cord to make up the total length, make  
sure each cord contains at least the minimum wire size required.  
(See Figure C.)  
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5.  
If you are using one extension cord for more than one tool, add the nameplate  
amperes and use the sum to determine the required minimum cord size.  
(See Figure C.)  
6.  
If you are using an extension cord outdoors, make sure it is marked with the  
suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.  
7.  
8.  
Make sure your extension cord is properly wired and in good electrical condition.  
Always replace a damaged extension cord or have it repaired by a qualified  
electrician before using it.  
Protect your extension cords from sharp objects, excessive heat, and damp or  
wet areas.  
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*  
(120 VOLT)  
NAMEPLATE  
AMPERES  
EXTENSION CORD LENGTH  
(At Full Load)  
25  
Feet  
18  
18  
18  
18  
18  
14  
12  
50  
Feet  
18  
18  
18  
16  
14  
12  
75  
Feet  
18  
18  
16  
14  
12  
10  
-
100  
Feet  
18  
16  
14  
12  
10  
-
150  
Feet  
16  
14  
12  
12  
-
0 – 2.0  
2.1 – 3.4  
3.5 – 5.0  
5.1 – 7.0  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
-
-
10  
-
* Based on limiting the line voltage drop  
to five volts at 150% of the rated amperes.  
FIGURE C  
SYMBOLOGY  
FIGURE D  
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UNPACKING  
When unpacking, check to make sure all the parts shown on the Parts List on page 16  
are included. If any parts are missing or broken, please call Harbor Freight Tools at the  
number shown on the cover of this manual as soon as possible.  
PRODUCT FEATURES  
NOTE:  
For additional information regarding the parts listed in the following pages,  
refer to the Assembly Diagrams on page 17.  
1.  
CAUTION! Always make sure the Power Switch (66) of the Demolition  
Hammer is in its “OFF” position and the tool is unplugged from its electrical outlet  
prior to adding accessories or performing maintenance on the tool.  
FRONT CAP  
(1)  
SLIDER  
(4)  
OIL CAP  
(45)  
POWER SWITCH  
(66)  
KNOB  
(105)  
AUXILIARY HANDLE  
(104)  
VARIABLE  
SPEED CONTROL  
(72)  
FIGURE E  
1.  
Oil Cap (45): Prior to the Demolition Hammer’s first use, remove the Oil Cap  
and check to make sure the tool is properly filled with grease. If necessary, fill  
the tool with approximately 1-1/4 ounces of #3 Lithium-based grease (not  
included). Then, replace the Oil Cap. Thereafter, replace the grease at the end  
of every 70 to 80 hours of tool use.  
(See Figure E.)  
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2.  
3.  
Power Switch (66): The Demolition Hammer is switched “ON” by the slide  
switch located in the rear Handle (62). To turn the tool “ON”, slide the switch to  
the right. To turn the tool “OFF”, slide the switch to the left. (See Figure E.)  
Variable Speed Control (72): The Demolition Hammer is equipped with a  
Variable Speed Control Dial. The impact rate (BPM) and rotating speed (RPM)  
can be varied according to the type of work being performed by setting the  
Variable Speed Control Dial to the selected setting: 1-2-3-4-5-6 (“1” Being the  
lowest. “6” Being the highest.) The Variable Speed Control Dial may be  
adjusted while the Motor is running with the tool free from work, allowing the  
operator to adjust the impact rate and rotating speed according to the actual  
application. (See Figure E.)  
4.  
5.  
Auxiliary Handle (104) and Knob (105): The Demolition Hammer must be  
supported with the Auxiliary Handle, which can be swiveled 360 degrees. To  
reposition and/or swivel the Auxiliary Handle, loosen the Knob. Move the  
Auxiliary Handle to the desired position along the barrel of the tool and firmly  
retighten the Knob. (See Figure E.)  
Front Cap (1) and Slider (4): To install a Chisel (106, 107), clean the insert  
shank end of the chisel to remove any debris. Then, lightly grease the shank  
with a light oil or grease. Insert the Chisel into the Slider through the Front Cap,  
while twisting and pushing inward until the Chisel locks into place. (Pull outward  
on the Chisel to make sure it is locked into the Slider. (See Figure F.)  
SLIDER (4)  
OIL OR GREASE  
(NOT INCLUDED)  
CHISEL  
FRONT CAP  
(106, 107)  
(1)  
CHISEL  
(106, 107)  
FRONT CAP (1)  
SLIDER (4)  
FIGURE F  
OPERATING INSTRUCTIONS  
WARNING! Always wear ANSI-approved safety impact eye  
glasses and a full face shield when using the Demolition Hammer.  
Also wear heavy duty steel-toe boots, hearing protection, dust mask or  
respirator, and heavy duty work gloves.  
SKU 93853  
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1.  
2.  
Install a Chisel (106, 107) as previously discussed. (See Figure F.)  
Make sure the Power Switch (66) is in its “OFF” position. Then, connect the  
Power Cord & Plug (70) to the nearest 120 volt, grounded electrical outlet.  
(See Figure E.)  
3.  
Grasp the Demolition Hammer firmly by its rear Handle (62) and Auxiliary Handle  
(104). Then, turn the Power Switch (66) to its “ON” position to begin work.  
IMPORTANT: This Demolition Hammer requires a short period of time to warm  
up. Depending on the room temperature, this time may vary from approximately  
15 seconds (at 90 degrees Fahrenheit) to 2 minutes (at 32 degrees Fahrenheit).  
A new Hammer requires a break-in period before full performance is  
realized. This period may require up to 5 hours operation. (See Figure E.)  
4.  
For the best penetration rates in concrete, run the Demolition Hammer with a  
steady pressure but do not use excessive force as this will decrease the efficiency  
of the tool.  
5.  
6.  
7.  
If necessary, adjust the Variable Speed Control Dial (72) to increase the tool’s  
cutting efficiency. (See Figure E.)  
When finished using the Demolition Hammer, turn the Power Switch (66) to its  
“OFF” position. Then, unplug the tool from its electrical outlet. (See Figure E.)  
Allow the Chisel (106, 107) to completely cool. Then, pull and hold the locking  
Slider (4) backward and pull the Chisel forward. The Chisel should be cleaned  
after removing. (See Figure F.)  
8.  
Make sure to store the Demolition Hammer in a clean, dry, safe location out of  
reach of children and other unauthorized people.  
INSPECTION, MAINTENANCE, AND CLEANING  
1.  
2.  
CAUTION! Always make sure the Power Switch (66) of the Demolition  
Hammer is in its “OFF” position and the tool is unplugged from its electrical outlet  
prior to performing any inspection, maintenance, or cleaning.  
Before each use, inspect the general condition of the Demolition Hammer.  
Check for loose screws, misalignment or binding of moving parts, cracked or  
broken parts, damaged electrical wiring, and any other condition that may affect  
its safe operation. If abnormal noise or vibration occurs, have the problem  
corrected before further use. Do not use damaged equipment.  
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3.  
To replace the Motor Carbon Brushes: It may become necessary at sometime  
to replace or clean the two Carbon Brushes (76) when the Motor performance  
decreases, or stops working completely. The Carbon Brushes are located on  
each side of the Motor Casing (61). To replace the Carbon Brushes, remove the  
two Brush Holder Covers (79). Remove the Brush Caps (77). Then, remove the  
two Carbon Brushes from the two Brush Holders (75). If the Carbon Brushes are  
worn down, replace both Carbon Brushes. If, however, the Carbon Brushes are  
just dirty they may be cleaned by rubbing them with a pencil eraser. If cleaning  
and replacing used brushes, try to install them in the same holders and in the  
same direction they were removed. When installing the Carbon Brushes, make  
sure the carbon portion of the Carbon Brushes contact the Motor’s Rotor and that  
the springs face away from the Motor. Also, make sure the springs operate freely.  
After replacement or cleaning, replace the two Brush Holder Covers.  
NOTE: New Carbon Brushes tend to arc or spark when first used until they wear  
and conform to the Motor’s Rotor. (See Figure G.)  
4.  
5.  
Every 70 to 80 hours of tool use: Remove the Oil Cap (45) and replace the  
grease. Fill the tool with approximately 1-1/4 ounces of #3 Lithium-based  
grease (not included). Then, replace the Oil Cap. (See Figure E.)  
To clean the exterior parts of the Demolition Hammer, use only a clean cloth  
and mild detergent. Then, dry. Use a vacuum or compressed air to clean the  
Motor Air Vents. Do not immerse any electrical part of the tool in any liquids.  
6.  
7.  
When storing, store the tool in a clean, dry, safe location out of reach of children  
and other unauthorized people.  
CAUTION! All maintenance, service, or repairs not mentioned in this  
manual must only be performed by a qualified service technician.  
BRUSH CAP  
(77)  
BRUSH HOLDER COVER  
(79)  
CARBON BRUSH  
(76)  
BRUSH HOLDER  
(75)  
FIGURE G  
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TROUBLESHOOTING  
Problem  
Possible Solution  
Chisel installs with difficulty.  
1. Make sure the Chisel shank, Front Cap, and Slider are free of  
debris and lightly oiled or greased. (See page 12.)  
1. Make sure the Power Switch is in its “ON” position.  
(See page 11.)  
Tool does not run.  
2. Make sure the Power Cord & Plug is connected to a working  
120 volt, grounded electrical outlet. (See page 9.)  
3. Make sure the Power Cord & Plug is not damaged.  
4. Make sure the tool is filled with approximately 1-1/4 ounces  
of #3 Lithium-base grease. (See page 11.)  
5. Check the Motor Carbon Brushes for excessive wear  
and/or debris. Replace or clean if necessary. (See page 14.)  
6. Have a qualified service technician check out the tool.  
1. Make sure the Power Switch is in its “OFF” position.  
(See page 11.)  
Tool does not stop.  
2. Immediately disconnect the Power Cord & Plug from its  
electrical outlet, and have a qualified service technician  
check out the tool for damage and/or defects.  
Poor cutting efficiency.  
1. Make sure the Chisel is clean and sharp.  
2. Adjust the Variable Speed Control Dial for the type of work  
being done. (See page 12.)  
3. Apply moderate pressure only. Allow the tool to do the  
cutting without being forced.  
4. Check the Motor Carbon Brushes for excessive wear  
and/or debris. Replace or clean if necessary. (See page 14.)  
5. Have a qualified service technician check out the tool for  
damage and/or defects.  
Tool overheats and suddenly 1. Make sure the tool is filled with approximately 1-1/4 ounces  
stops running.  
of #3 Lithium-base grease. (See page 11.)  
2. Make sure the Motor Air Vents are clean and free of  
debris. (See page 14.)  
5. Have a qualified service technician check out the tool for  
damage and/or defects.  
SKU 93853  
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PLEASE READ THE FOLLOWING CAREFULLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS LIST AND ASSEMBLY DIAGRAM INTHIS MANUAL  
AS A REFERENCETOOL ONLY. NEITHERTHE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR  
WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN  
FACT,THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATESTHAT ALL REPAIRS AND PARTS REPLACEMENTS  
SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BYTHE BUYER. THE BUYER ASSUMES  
ALL RISKS AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS  
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTSTHERETO.  
PARTS LIST  
Part #  
1
Description  
Qty.  
Part #  
45  
Description  
Qty.  
Front Cap  
1
1
1
1
1
1
1
1
4
4
1
1
6
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
4
8
1
2
1
1
Oil Cap  
1
1
3
3
3
1
1
1
1
1
2
2
2
2
2
1
1
1
4
1
1
1
1
2
1
1
1
1
8
4
2
2
2
4
2
1
2
1
1
1
1
1
2
3
4
5
6
7
8
9
Axil Circlip (28)  
Retainer Ring  
Slider  
Rubber Ring  
Spring Washer  
Spring  
Connecting Sheath  
Bolt (M10x30)  
Spring Washer  
Grip Slipper  
O-Ring  
Column Pin (8x19.5)  
Guard Ring Sleeve  
O-Ring  
Circlip  
Oil Seal Ferrule  
Top Cover  
Secondary Striker  
Anti-Vibration Ring  
Guide Sheath  
Cylinder Connector  
O-Ring  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58*  
59*  
60*  
61*  
62  
63  
64  
65  
66  
67  
68  
69  
70  
O-Ring  
Bolt (M4x14)  
Spring Washer  
Flat Washer  
Top Cover  
O-Ring  
Wheel Box  
Oil Seal  
Bearing (6202)  
Flat Washer  
Spring Washer  
Bolt (M6x25)  
Tapping Bolt (ST4.8x65)  
Stator Holding Plate  
Air Baffle  
Motor Casing  
Handle  
Tapping Bolt (ST4.8x25)  
Capacitor  
Switch  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33*  
34*  
35*  
36*  
37*  
38  
39  
40*  
41  
42  
43  
44  
Power Switch  
Inductor  
Ram  
O-Ring  
Tapping Bolt (ST4.2x16)  
Cable Clamp  
Power Cord & Plug  
Cable Sheath  
Variable Speed Control Dial  
Screw (M8x45)  
Flat Washer  
Brush Holder  
Carbon Brush  
Brush Cap  
Tapping Bolt (ST4.2x13)  
Cover  
Bolt (M8x140)  
Clamp  
Chuck Ring  
Auxiliary Handle  
Knob  
Control Bushing  
Compression Spring  
Piston Pin  
Needle Bearing (NK14/16)  
Cylinder  
71  
72  
73*  
74*  
75**  
76**  
77**  
78  
Piston  
Connecting Rod  
Bearing Cap  
Bearing (6201)  
Stator  
Rotor  
Fan  
Cylinder Case  
Screw (M8x35)  
Spring (8)  
79  
101  
102  
103  
104  
105  
106  
107  
O-Ring  
Spade Chisel  
Bull Point Chisel  
Centripetal Needle Holder Assy.  
Adjusting Washer  
Large Gear  
109*  
Complete Motor Assy.  
(Includes parts 33*, 34*, 35*, 36*, 37*, 40*, 58*,  
59*, 60*, 61*, 73*, 74*)  
Complete Carbon Brush Assy.  
(Includes parts 75**, 76**, 77**)  
1
1
----------  
-----------------------------------------------  
--------- 110**  
* Cannot be ordered individually. Must be ordered as a complete Motor Assembly.  
** Cannot be ordered individually. Must be ordered as a complete Carbon Brush Assembly.  
REV 06/06  
SKU 93853  
For technical questions, please call 1-800-444-3353  
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ASSEMBLY DIAGRAM  
*
*
*
*
*
*
*
*
*
*
*
*
SKU 93853  
For technical questions, please call 1-800-444-3353  
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WARRANTY CARD  
LIMITED 1 YEAR/  
90 DAY WARRANTY  
Harbor FreightTools Co. makes every effort to assure that its products meet high quality and durability standards,  
and warrants to the original purchaser that for a period of ninety days from date of purchase that the motor is  
free of defects in materials and workmanship. Harbor Freight Tools also warrants to the original purchaser, for  
a period of one year from date of purchase, that all other parts and components of the product are free from  
defects in materials and workmanship. This warranty does not apply to damage due directly or indirectly, to  
misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, or to lack of maintenance.  
We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or  
consequential damages arising from the use of our product.Some states do not allow the exclusion or limitation  
of incidental or consequential damages, so the above limitation of exclusion may not apply to you. THIS  
WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING  
THE WARRANTIES OF MERCHANTABILITY AND FITNESS.  
To take advantage of this warranty, the product or part must be returned to us with transportation charges  
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our  
inspection verifies the defect, we will either repair or replace the product at our election or we may elect to  
refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return  
repaired products at our expense, but if we determine there is no defect, or that the defect resulted from  
causes not within the scope of our warranty, then you must bear the cost of returning the product.  
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.  
3491 Mission Oaks Blvd.  
PO Box 6009  
Camarillo, CA 93011  
(800) 444-3353  
SKU 93853  
For technical questions, please call 1-800-444-3353  
PAGE 18  
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