Ferris Industries Lawn Mower 1000z Series User Guide

OPERATOR’S  
MANUAL  
with Blower Setup Instructions  
Double & Triple Bag Grass Collection Systems  
Double Bag Collection System for:  
Ferris 1000Z Series - 48” & 52” Mowers  
Derby Colt ZT2148 & ZT2352 - 48” & 52” Mowers  
Triple Bag Collection System for:  
Ferris IS3000Z Series - 61” Mower  
Derby Stallion ZT2561 - 61” Mower  
22860  
Ferris Industries  
5375 North Main Street  
Munnsville, NY 13409  
800-933-6175  
Rev. 9/2001  
TP 100-7040-01-AT-FD  
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Table of Contents  
SAFETY RULES & INFORMATION  
INITIAL INSTALLATION & ASSEMBLY  
61” TRIPLE BAG COLLECTION SYSTEM  
BLOWER MOUNT & DRIVE GROUP  
General Warnings..............................................2  
Safety Decals.....................................................2  
Remove Discharge Chute................................10  
Release Mower Drive Belt Tension..................10  
Remove Guard & Spindle Pulley .....................10  
Install Spindle Pulley........................................11  
Install Guard & Blower Mount..........................11  
Blower Preparation ..........................................12  
Install Blower & Belt Guard..............................15  
GENERAL OPERATING INSTRUCTIONS  
Mowing with the Double / Triple Catcher...........3  
After Operation ..................................................3  
Storing the Grass Catcher.................................3  
Mowing Without the Blower ...............................3  
INITIAL INSTALLATION & ASSEMBLY  
48” & 52” DOUBLE BAG COLLECTION SYSTEM  
BLOWER MOUNT & DRIVE GROUP  
OPERATING WITHOUT BLOWER  
Reattaching Discharge Chute..........................16  
Remove Discharge Chute..................................4  
Release Mower Drive Belt Tension....................4  
Remove Guard & Spindle Pulley .......................4  
Install Spindle Pulley..........................................5  
Install Guard ......................................................5  
Mower Deck Preparation ...................................5  
Blower Preparation ............................................7  
Install Blower & Belt Guard................................9  
REFERENCE INFORMATION:  
Torque Specification Chart .....Inside Back Cover  
NOTE: In these instructions, “left” and “right” are  
referred to as seen from the operating position.  
PRODUCT REFERENCE DATA  
Model Description Name  
Unit MODEL Number  
Unit SERIAL Number  
Date Purchased  
Dealer Name  
© Copyright 2001 Ferris Industries, Inc.  
All Rights Reserved. Printed in USA.  
TP 100-7040-01-AT-FD  
1
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Safety Rules  
& Information  
Read these safety rules and follow them closely. Failure to obey these rules could result in loss of control  
of unit, severe personal injury or death to you, or bystanders, or damage to property or equipment. The tri-  
angle in text signifies important cautions or warnings which must be followed.  
GENERAL WARNINGS  
When blower assembly is removed from the mower  
deck, the deflector must be properly installed.  
Know the mower controls, safety rules and how to  
stop quickly. READ AND UNDERSTAND THE  
MOWER OPERATORS MANUAL.  
If the mower stalls or the turbo blower chute plugs:  
1. Disengage the electric clutch (PTO);  
READ AND OBEY ALL SAFETY DECALS.  
2. Stop the engine and remove the key;  
3. Set the parking brake, and wait for all moving  
parts to stop.  
Wear appropriate ear, eye and breathing protection.  
Only allow responsible adults, who are familiar with  
4. Remove the foreign object or clear the chute with  
a piece of wood before restarting the engine.  
NEVER PLACE HANDS INTO BLOWER HOUS-  
ING TO CLEAR JAMMED OBJECT. BLOWER  
MAY ROTATE WHEN OBJECT IS REMOVED.  
the instructions, to operate the unit.  
Disengage the electric clutch (PTO). Shut off the  
engine and wait for all moving parts to stop before  
attaching, adjusting, or disconnecting any part of the  
collection system.  
For added rider stability and to prevent tipping or loss  
of control:  
Check the collection system to make sure it is bolted  
tightly to the rider.  
a. Use reduced speed on uneven ground and when  
turning corners.  
DO NOT operate the mower without either the entire  
grass catcher or the deflector in place.  
b. Reduce loads on hillsides. It is recommended that  
the collection system be kept only half full when  
negotiating any slopes. Start mowing on slopes  
when the collection system is empty.  
c. Mow up and down the face of slopes; never  
across the face of any slope.  
Turn off the PTO switch to disengage the blades  
when not mowing.  
DO NOT mow in reverse. Always look down and  
behind before and while travelling in reverse.  
DO NOT turn sharply when travelling alongside a  
building or any object. Slow down before turning.  
When operating on slopes, use front counterweights.  
Never operate on slopes greater than 17.6% (10°).  
DO NOT carry passengers on the rider.  
These labels are easily applied and will act as a con-  
stant visual reminder to you, and others who may use  
the equipment, to follow the safety instructions neces-  
sary for safe, effective operation.  
SAFETY DECALS  
This unit has been designed and manufactured to pro-  
vide you with the safety and reliability you would expect  
from an industry leader in outdoor power equipment  
manufacturing.  
Read and obey all operation and warning decals.  
Although reading this manual and the safety instructions  
it contains will provide you with the necessary basic  
knowledge to operate this equipment safely and effec-  
tively, we have placed several safety labels on the unit  
to remind you of this important information while you are  
operating your unit.  
DANGER  
ROTATING CUTTING BLADE  
Do not operate mower  
without deflector or entire  
grass catcher in place.  
1704277  
All DANGER, WARNING, CAUTION and instructional  
messages on your rider and mower should be carefully  
read and obeyed. Personal bodily injury can result when  
these instructions are not followed. The information is for  
your safety and it is important! The safety decals below  
are on your rider and mower.  
If any of these decals are lost or damaged, replace them  
at once. See your local dealer for replacements.  
2
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General  
Operating Instructions  
BEFORE OPERATION  
Clear the lawn of all sticks, stones, wire and other debris  
which may be caught or thrown by the mower blades.  
Check grass condition. If wet, wait until later in the day.  
If grass is wet, the grass catcher is likely to become  
plugged.  
For efficient bagging, air circulation under the  
mower deck, through the chute and into the bag is  
very important.  
For this reason, BEFORE YOU BEGIN MOWING you  
should make certain the underside of the mower and  
the underside of the catcher lid are free from grass and  
debris.  
Make sure that there is a snug fit between mower  
deck, blower housing, tubes, and grass catcher cover.  
MOWING WITH THE DOUBLE /  
TRIPLE CATCHER  
AFTER OPERATION  
Remove any debris from the the screen on the under-  
side of the lid. Note: The lid screen can be partially  
removed for easier cleaning and should be cleaned reg-  
ularly.  
Always operate with throttle at full speed when mowing.  
Grass should be cut often, and not too short. If grass is  
too long or lush it may be necessary to keep ground  
speed to a minimum or to cut only half the width of the  
mower to prevent clogging. If grass is long, operate with  
mower in high cutting position for first pass, cutting  
again in a lower position on a second pass.  
The blower housing and tube should be removed for  
cleaning.  
Inspect the grass bags for wear or damage. Make sure  
that there is a snug fit between mower deck, blower  
housing, tubes, and grass catcher cover.  
Do not open the cover with mower engaged.  
If a large amount of cut grass is spilling out from under  
deck, the tube may be plugged or the bags may be  
fulldiscontinue mowing, stop the rider, disengage the  
PTO and then empty the catcher or clear the tube.  
STORING THE GRASS CATCHER  
Clean the grass catcher thoroughly using a mild deter-  
gent (other products may damage the tube). Remove  
any debris from the the screen on the underside of the  
lid. The screen can be partially removed for easier  
cleaning.  
If paint has been scratched on metal parts, touch up  
with paint, or apply a thin film of oil to prevent corrosion.  
WARNING  
ALWAYS shut off the tractor. disengage the PTO,  
and allow all moving parts to stop BEFORE  
disconnecting or clearing tube, or emptying  
catcher.  
Store in a dry area. Hang the catcher and catcher bags  
to dry thoroughly before storing for a long period of time.  
Always store away from moisture.  
Before leaving the operator’s position for any  
reason, engage the parking brake, disengage the  
PTO, stop the engine and remove the key.  
MOWING WITHOUT THE BLOWER  
For operation without the blower, the deflector must be  
properly installed in the down position and retained by  
the spring latch (Derby models only).  
To reduce fire hazard, keep the engine, rider and  
mower free of grass, leaves and excess grease.  
Do not stop or park rider over dry leaves, grass or  
combustible materials.  
To remove the blower, reverse the installation steps.  
3
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Initial  
Installation & Assembly  
48” & 52” DOUBLE-BAG  
COLLECTION SYSTEM BLOWER  
MOUNT & DRIVE GROUP  
Remove Discharge Chute  
1. Park machine on a flat, level surface and apply the  
parking brake.  
2. Remove the discharge chute and save. Save  
springs and spacer (Derby Colt only).  
Figure 1. Chute Removal  
Release Mower Drive Belt Tension  
1. Raise the floor pan and loosen the spring compres-  
sion nut (A, Figure 2) to release the belt tension.  
B
A
Figure 2. PTO Mower Drive Belt  
A. Spring Compression Nut  
B. Idler Spring  
Remove Guard & Spindle Pulley  
A
1. Remove the right-hand belt guard (A, Figure 3) and  
save.  
B
2. Remove the mower deck drive belt from the right-  
hand spindle pulley.  
C
3. Remove the right-hand spindle pulley (D), 5/8nylon  
lock nut (B), 5/8washer (C) and 1/4key (E). Use a  
block of wood to keep the blade from spinning while  
removing the 5/8nut.  
D
F
G
E
Figure 3. Belt Guard & Pulley Removal  
A. Guard  
E. Key  
F. 5/16Washer (3)  
G. 5/16x 3/4Bolt (3)  
B. 5/8Nylon Lock Nut  
C. 5/8Washer  
D. Spindle Pulley  
4
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48” & 52” Blower Mount & Drive Installation  
Install Spindle Pulley  
A
1. Apply an anti-seize compound to the spindle shaft.  
Install the new, double spindle pulley (C, FIgure 4)  
on the shaft with the smaller pulley facing up with the  
5/8nylon lock nut (A), 5/8washer (B) and 1/4key  
(D) and tighten to 85-95 ft./lbs. Use a block of wood  
to keep the blade from spinning while installing and  
tightening the 5/8nut.  
B
C
D
2. Reinstall the mower deck drive belt on the new spin-  
dle pulley. Tighten the spring compression nut (A,  
Figure 2) until the idler spring (B, Figure 2) is 1-1/2”  
long. Be sure the measure the spring only.  
Figure 4. Install Spindle Pulley  
A. 5/8Nylon Lock Nut  
B. 5/8Washer  
C. Spindle Pulley  
D. Key  
Install Guard  
A
B
1. Install the new deck guard (B, FIgure 5) and secure  
with the 5/16-18 x 3/4bolts (C) and 5/16washers  
(D) previously removed.  
D
2. Install the 5/16body clips (A) over the holes in the  
C
guard with the threaded side pointing down.  
Figure 5. Install Guard  
A. 5/16Body Clip (2)  
B. Guard  
C. 5/16x 3/4Bolt (3)  
D. 5.16Washer (3)  
Mower Deck Preparation  
1. Install the blower mount plate onto the chute mount  
tabs, with the blower mount tabs towards the rear.  
Secure with the retaining pin.  
Figure 6. Install Blower Mount  
5
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48” & 52” Blower Mount & Drive Installation  
2. While holding the mount plate vertical and against  
the chute mount tabs, place the spacers on the  
mower deck in the recesses of the mount plate.  
Make sure they are at the bottom of the recess (see  
Figure 7). Mark their location with a paint pen or  
prick punch.  
3. Remove the spacers and blower mount plate.  
4. Drill 5/16holes where the spacer location was  
marked.  
Figure 7. Spacer Location  
5. Install the spacers (C, FIgure 8) and mount bar (B)  
on the mower deck and secure with the 5/16-18 x 1-  
1/4bolts (D) and 5/16-18 nylon lock nuts (A).  
B
A
C
D
Figure 8. Install Quick Connect Bar  
A. 5/16Nylon Lock Nut (2)  
B. Quick Connect Bar  
C. Spacer (2)  
D. 5/16x 1-1/4Bolt (2)  
6
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48” & 52” Blower Mount & Drive Installation  
Blower Preparation  
1. Remove the belt guard (A, Figure 9) and hardware  
(B & C) from the blower housing and set aside.  
A
NOTE: Record the model and serial number of the  
blower on the warranty registration card and in the  
space provided on Page 1. The serial tag is located on  
the outside face of the blower housing.  
B
C
2. Fasten the idler arm assembly (G) to the blower  
housing with 5/16-18 x 1-3/4bolt (D), 5/16fender  
washer (E), pivot spacer (F) and 5/16-18 serrated  
flange nut (H). Tighten securely.  
D
E
F
G
H
Figure 9. Idler Arm Installation  
A. Belt Guard  
B. 5/16-18 x 1Bolt  
C. 5/16Washer  
E. 5/16Fender Washer  
F. Pivot Spacer  
G. Idler Arm Assembly  
H. 5/16-18 Flange Nut  
D. 5/16-18 x 1-3/4Bolt  
3. Remove the two 7/16bolts and hex nuts from the  
inside bearing. Remove the bearing from the blower  
housing and discard the two hex nuts.  
C
D
4. Install the blower mount plate (A, Figure 10) onto the  
back plate of the blower. Install the 5/16-18 x 3/4”  
self-tapping bolts (B), but do not tighten until all  
screws have been started. Tighten securely.  
A
B
5. Install three 5/16-18 x 3/4bolts (D) near the bear-  
ing. Install the two 5/16-18 x 1bolts (C) in the two  
remaining holes. Note the direction of the bolts, this  
is critical. Secure with the 5/16-18 nylon lock nuts  
(E) as shown.  
E
E
B
E
C
Figure 10. Install Blower Mount Plate  
A. Blower Mount Plate  
B. 5/16Self-Tap. Bolt (4)  
C. 5/16x 1Bolt (2)  
D. 5/16x 3/4Bolt (3)  
E. 5/16Nylon Lock Nut (5)  
7
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48” & 52” Blower Mount & Drive Installation  
6. Install the bearing (B, Figure 11) on the shaft with  
the grease fitting pointing towards the discharge of  
the blower. Secure with the 7/16-14 x 1-1/2bolts  
(A) and 7/16-14 nylon lock nuts (C) as shown.  
Tighten the setscrew in the collar of the bearing.  
B
A
7. Install the spring (G) on the bolt of the idler arm and  
secure with a 5/16-18 nylon lock nut (H). Only tight-  
en the nut until the threads come through the nylon.  
Do not clamp spring.  
F
G
D
8. Hook the spring on the eyebolt (F). Install the eye-  
bolt and 1/4washer (E) on the blower mount plate  
and secure with the nylon nut (D) as shown. The  
E
C
H
nylon nut (D) must be fully tightened so the eyebolt  
is drawn up tight against the mount. The eyebolt  
must be vertical.  
Figure 11. Install Bearing & Eyebolt  
A. 7/16x 1-1/2Capscrew (4) E. 1/4Washer  
B. Bearing  
C. 7/16Nylon Lock Nut (4)  
D. 1/4-20 Nylon Lock Nut  
F. 1/4x 1Eyebolt  
G. Spring  
H. 5/16-18 Nylon Lock Nut  
9. Install the blower pulley and key with the hub facing  
INWARD towards the bearing, and hold against the  
bearing. Tighten set screws.  
10. Install one 3/8-16 flange nut on the 3/8-16 x 6bolt  
and tighten against the end of the threads (see  
Figure 12). Install drive belt on the drive pulley and  
install the 3/8-16 x 6bolt. Leave enough space  
between the belt and bolt so it will not interfere.  
Secure the bolt with a 3/8serrated flange nut.  
Figure 12. Install Blower Pulley & Guide Bolt  
11. Loosen the idler pulleys and install the belt under the  
belt keeps. Make sure the groove of the belt is prop-  
erly seated in the v-pulleys (see Figure 13, the gray  
section is the flat side of the belt). Reposition the  
belt keeps so they will not interfere with the drive belt  
and tighten the idler pulleys.  
Figure 13. Belt Routing  
8
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48” & 52” Blower Mount & Drive Installation  
Install Blower & Belt Guard  
1. Install the blower onto the chute mount tabs with the  
blower mount tabs towards the rear. Secure with the  
retainer pin and hair pin. Make sure the handle of  
the retaining pin is pointing down.  
2. Pull the idler arm lever against the spring to install  
the drive belt on the spindle pulley. The tension idler  
should be approximately 3/4- 1away from the  
blower housing when belt in installed. If not, remove  
the drive belt and reposition the top idler pulley in the  
outside row of holes until the measurement is  
achieved.  
3. Install the blower belt shield and secure with the  
5/16x 1bolts and 5/16washers.  
4. Install the guard cover and secure with the plastic  
knobs.  
Figure 14. Install Blower & Belt Guard  
9
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Initial  
Installation & Assembly  
61” TRIPLE-BAG COLLECTION  
SYSTEM  
BLOWER MOUNT & DRIVE GROUP  
Remove Discharge Chute  
1. Park machine on a flat, level surface and apply the  
parking brake.  
2. Remove the discharge chute and save. Save  
springs and spacer (Derby Stallion only).  
Figure 19. Chute Removal  
Release Mower Drive Belt Tension  
1. Raise the floor pan and loosen the spring compres-  
sion nut (A, Figure 20) to release the belt tension.  
B
A
Figure 20. PTO Mower Drive Belt  
A. Spring Compression Nut  
B. Idler Spring  
Remove Guard & Spindle Pulley  
1. Remove the right-hand belt guard (A, Figure 21) and  
save. Remove and discard the two front 5/16-18 x  
1bolts (G), 5/16washers (F) and 5/16body clips.  
A
B
2. Remove the mower deck drive belt from the right-  
hand spindle pulley.  
C
3. Remove the right-hand spindle pulley (D), 5/8: nylon  
lock nut (B), 5/8washer (C) and 1/4key (E). Use a  
block of wood to keep the blade from spinning while  
removing the 5/8nut.  
D
F
G
E
Figure 21. Belt Guard & Pulley Removal  
A. Guard  
E. Key  
F. 5/16Washer (3)  
G. 5/16-18 x 1Bolt (3)  
B. 5/8Nylon Lock Nut  
C. 5/8Washer  
D. Spindle Pulley  
10  
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61” Blower Mount & Drive Installation  
Install Spindle Pulley  
A
1. Apply an anti-seize compound to the spindle shaft.  
Install the new, double spindle pulley (C, Figure 22)  
on the shaft with the smaller pulley facing up with the  
5/8nylon lock nut (A), 5/8washer (B) and 1/4key  
(D) and tighten to 85-95 ft./lbs. Use a block of wood  
to keep the blade from spinning while installing and  
tightening the 5/8nut.  
B
C
2. Reinstall the mower deck drive belt on the new spin-  
dle pulley. Tighten the spring compression nut (A,  
Figure 20) until the idler spring (B, Figure 20) is 1-  
1/2long. Be sure the measure the spring only.  
D
Figure 22. Install Spindle Pulley  
A. 5/8Nylon Lock Nut  
B. 5/8Washer  
C. Spindle Pulley  
D. Key  
Install Guard & Blower Mount  
B
A
1. Loosely install the 3/8-16 x 1-1/4bolts (D, FIgure  
23), 3/8washers (E), blower mount bar (C), belt  
guard (A) and nut bar (F) onto the mower deck.  
These fasteners will be tightened in a later step.  
C
2. Install the 5/16body clips (B) on the belt guard.  
The front body clip is install from underneath the  
guard.  
E
D
F
Figure 23. Install Blower Mount Bar & Belt Shield  
A. Belt Guard  
B. 5/16Body Clip  
C. Blower Mount Bar  
D. 3/8-16 x 1-1/4Bolts  
E. 3/8Washer  
F. Nut Bar  
11  
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61” Blower Mount & Drive Installation  
Blower Preparation  
A
1. Remove the belt guard (A, Figure 24) and hardware  
(B & C) from the blower housing and set aside.  
B
NOTE: Record the model and serial number of the  
blower on the warranty registration card and in the  
space provided on Page 1. The serial tag is located on  
the outside face of the blower housing.  
C
2. Fasten the idler arm assembly (G) to the blower  
housing with 5/16-18 x 1-3/4bolt (D), 5/16fender  
washer (E), pivot spacer (F) and 5/16-18 serrated  
flange nut (H). Tighten securely.  
D
E
3. Remove the top stationary idler pulley (I) and replace  
in the middle hole of the inside row of holes. Tighten  
securely.  
I
F
G
H
Figure 24. Idler Arm Installation  
A. Belt Guard  
B. 5/16-18 x 1Bolt  
C. 5/16Washer  
D. 5/16-18 x 1-3/4Bolt  
E. 5/16Fender Washer  
F. Pivot Spacer  
G. Idler Arm Assembly  
H. 5/16-18 Flange Nut  
I. Idler Pulley  
3. Remove the two 7/16bolts and hex nuts from the  
inside bearing. Remove the bearing from the blower  
housing and discard the two hex nuts.  
4. Install the blower mount plate (A, Figure 25) onto the  
back plate of the blower. Install the four 5/16-18 x  
3/4self-tapping bolts (B), but do not tighten until all  
screws have been started. Tighten securely.  
C
A
B
5. Install two 5/16x 3/4bolts (C) near the bearing.  
Secure with the 5/16nylon lock nuts (D) as shown.  
D
B
Figure 25. Install Blower Mount Plate  
A. Mount Plate  
B. 5/16-18 x 3/4Self-Tapping Bolts  
C. 5/16-18 x 3/4Bolts  
D. 5/16-18 Nylon Lock Nuts  
12  
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61” Blower Mount & Drive Installation  
6. Install the bearing (B, Figure 26) on the shaft with  
the grease fitting pointing towards the discharge of  
the blower. Secure with the four 7/16 x 1-1/2bolts  
(A) and 716-14 nylon lock nuts (C) as shown.  
Tighten the setscrew in the collar of the bearing.  
A
B
7. Install the 5/16x 1-1/4bolt (D), 5/16serrated  
flange nut (E) as shown and tighten.  
D
E
8. Install the spring (G) on the 5/16bolt (D) on the  
blower mount and install the 5/16nylon lock nut (F).  
Only tighten the nuts until the threads come through  
the nylon. Do not clamp spring.  
C
F
G
Figure 26. Install Bearing & Spring  
A. 7/16-14 x 1-1/2Bolt  
B. Bearing  
C. 7/16-14 Nylon Lock Nut  
D. 5/16-18 x 1-1/4Bolt  
E. 5/16-18 Flange Nut  
F. 5/16-18 Nylon Lock Nut  
G. Spring  
9. Install the deck support rail (A, Figure 27) and fasten  
with the 5/16-18 x 3/4bolts (B) and 5/16-18 nylon  
lock nuts (D) as shown. Note the direction of the  
bolts, this is critical.  
B
B
10. Install the spring (C) on the idler arm and secure with  
the 5/16nylon lock nut (D). Only tighten the nut  
until the threads come through the nylon. Do not  
clamp spring.  
D
D
D
A
C
D
B
Figure 27. Install Support Rail & Spring  
A. Deck Support Rail  
B. 5/16-18 x 3/4Bolt  
C. Spring  
D. 5/16-18 Nylon Lock Nut  
13  
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61” Blower Mount & Drive Installation  
11. Loosely install the blower brace (A, Figure 28), 3/8-  
16 x 1bolts (B) and 3/8washers (C) as shown.  
These fasteners will be tightened in a later step.  
B
A
B
C
C
Figure 28. Install Blower Brace  
A. Blower Brace  
B. 3/8-16 x 1Bolt  
C. 3/8Washer  
12. Install the blower pulley and key with the hub facing  
OUTWARD away from the bearing and hold against  
the bearing. Tighten set screws.  
13. Install one 3/8-16 flange nut on the 3/8-16 x 6bolt  
and tighten against the end of the threads (see  
Figure 29). Install drive belt on the drive pulley and  
install the 3/8-16 x 6bolt. Leave enough space  
between the belt and bolt so it will not interfere.  
Secure the bolt with a 3/8serrated flange nut.  
Figure 29. Install Blower Pulley & Guide Bolt  
14. Loosen the idler pulleys and install the belt under the  
belt keeps. Make sure the groove of the belt is prop-  
erly seated in the v-pulleys (see Figure 30, the gray  
section is the flat side of the belt). Reposition the  
belt keeps so they will not interfere with the drive belt  
and tighten the idler pulleys  
Figure 30. Belt Routing  
14  
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61” Blower Mount & Drive Installation  
Install Blower & Belt Guard  
A
1. Install the blower assembly onto the mount bar (B,  
Figure 31). Push on the blower from the outside to  
obtain a tight fit between the blower housing and  
mower deck. Tighten the 3/8x 1bolts (C) that fas-  
ten the mount bar to the mower deck.  
2. Drill a 3/8hole through the mount flange of the  
blower mount bar and secure with a 3/8-16 x 1bolt  
(E) and 3/8-16 flange nut (D).  
B
3. Adjust the blower brace until approximately 1/8”  
clearance is obtained between the brace and the  
chute mount bar. Tighten the 3/8-16 x 1bolts (A).  
D
E
C
Figure 31. Install Blower  
A. 3/8-16 x 1Bolt  
B. Mount Bar  
D. 3/8-16 Flange Nut  
E. 3/8-16 x 1Bolt  
C. 3/8-16 X 1Bolt  
4. Install the 3/8x 4clevis pin (A, Figure 32) and hair  
D
pin clip (C) as shown.  
5. Install the plastic cap (B) in the end of the blower  
mount bar.  
B
E
C
6. Pull the idler arm lever against the spring to install  
the drive belt on the spindle pulley. The tension idler  
should be approximately 3/4- 1away from the  
blower housing when belt in installed. If not, remove  
the drive belt and reposition the top idler pulley in the  
inside row of holes until the measurement is  
achieved.  
A
7. Install the blower belt shield and secure with the  
hardware previously removed.  
Figure 32. Install Belt Shield & Clevis Pin  
A. 3/8x 4Clevis Pin  
B. Plastic Cap  
D. Belt Shield  
8. Install the deck belt shield (D) and secure with the  
plastic knobs (E).  
E. Plastic Knob  
C. Hair Pin Clip  
15  
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Discharge Chute Reattachment  
MOWING WITHOUT THE BLOWER  
For operation without the blower, the deflector must be  
properly installed in the down position and retained by  
the spring latch (Derby models only).  
C
A
To remove the blower, reverse the installation steps.  
D
E
D
B
Reattaching the Discharge Chute  
See Figure 33. Using the retainer pin and hair pin clip,  
secure the discharge chute to the mower deck. Make  
sure the chute mount tabs are in front of the tabs on the  
mower deck. For the Derby mowers, you must also  
reinstall the torsion springs and spacer to properly retain  
the discharge chute.  
Figure 33. Discharge Chute Reattachment  
A. Discharge Chute  
B. Retainer Pin  
C. Hair Pin Clip  
D. Torsion Spring  
E. Spacer  
16  
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Hardware Identification & Torque Specifications  
Common Hardware Types  
Torque Specification Chart  
FOR STANDARD MACHINE HARDWARE (Tolerance 20%)  
Hex Head Capscrew  
Washer  
No  
Marks  
Hardware  
Lockwasher  
Grade  
Carriage Bolt  
SAE Grade 2  
SAE Grade 5  
SAE Grade 8  
Hex Nut  
Size Of  
in/lbs  
in/lbs  
in/lbs  
Hardware ft/lbs  
Nm.  
2.1  
2.3  
3.1  
3.5  
7.6  
ft/lbs  
Nm.  
3.4  
3.5  
4.9  
ft/lbs  
Nm.  
4.6  
4.9  
6.8  
7.7  
16.3  
19.0  
34.0  
34.0  
61.2  
Standard Hardware Sizing  
8-32  
8-36  
19  
20  
27  
31  
66  
76  
11  
12  
20  
23  
30  
35  
50  
55  
65  
30  
31  
43  
49  
41  
43  
60  
68  
12  
14  
25  
27  
45  
When a washer or nut is identified as 1/2, this is the  
Nominal size, meaning the inside diameter is 1/2 inch; if a  
second number is present it represent the threads per inch  
10-24  
10-32  
1/4-20  
1/4-28  
5/16-18  
5/16-24  
3/8-16  
3/8-24  
7/16-14  
7/16-20  
1/2-13  
1/2-20  
9/16-12  
9/16-18  
5/8-11  
5/8-18  
3/4-10  
3/4-16  
7/8-9  
5.5  
When bolt or capscrew is identified as 1/2 - 16 x 2, this  
means the Nominal size, or body diameter is 1/2 inch; the  
second number represents the threads per inch (16 in this  
example, and the final number is the body length of the  
bolt or screw (in this example 2 inches long).  
8
10.9  
13.6  
23.1  
25.8  
40.8  
47.6  
68.0  
74.8  
8.6  
10  
17  
19  
30  
35  
50  
55  
15.0  
16.3  
27.2  
31.3  
40.8  
47.6  
68.0  
74.8  
88.4  
The guides and ruler furnished below are designed to  
help you select the appropriate hardware and tools.  
50  
70  
80  
68.0  
95.2  
0
108.8  
149.6  
163.2  
204.0  
231.2  
299.2  
326.4  
525.0  
571.2  
816.0  
897.6  
1/4  
75 102.0  
90 122.4  
110  
120  
150  
180  
260  
110  
120  
150  
170  
220  
240  
386  
420  
600  
660  
Nut, 1/2”  
1/2  
Inside  
Diameter  
149.6  
163.2  
204.0  
244.8  
353.6  
3/4  
75 102.0  
90 122.4  
100  
160  
180  
140  
1
2
3
4
136  
1/4  
217.6  
244.8  
190.4  
300 408.0  
1/2  
400  
440  
580  
544.0  
598.4  
788.8  
3
/4  
7/8-14  
1-8  
1-12  
155 210.8  
220  
240  
Screw, 1/2 x 2  
299.2  
326.4  
900 1,244.0  
Body  
Diameter  
640 870.4 1,000 1,360.0  
1/4  
NOTES  
1/2  
1. These torque values are to be used for all hardware  
excluding: locknuts, self-tapping screws, thread forming  
screws, sheet metal screws and socket head setscrews.  
2. Recommended seating torque values for locknuts:  
a. for prevailing torque locknuts - use 65% of grade 5  
torques.  
b. for flange whizlock nuts and screws - use 135% of  
grade 5 torques.  
3. Unless otherwise noted on assembly drawings, all torque  
values must meet this specification.  
Body  
Length  
3/4  
1/4  
1/2  
3
/4  
Wrench & Fastener Size Guide  
1/2  
7/16  
DIA.  
DIA.  
3/8  
5/16  
1/4  
1/4Bolt or Nut  
Wrench7/16”  
5/16Bolt or Nut  
Wrench1/2”  
3/8Bolt or Nut  
Wrench9/16”  
7/16Bolt or Nut  
Wrench (Bolt)5/8”  
Wrench (Nut)11/16”  
1/2Bolt or Nut  
Wrench3/4”  
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