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Service Manual
NOTE: These materials are for use by trained technicians experienced in the service and repair of outdoor power equipment of
the kind described in this publication, and are not intended for use by untrained or inexperienced individuals. These materials
are intended to provide supplemental information to assist the trained technician. Untrained or inexperienced individuals should
seek the assistance of an experienced and trained professional. Read, understand, and follow all instructions and use common
sense when working on power equipment. This includes the contents of the product’s Operators Manual, supplied with the
equipment. No liability can be accepted for any inaccuracies or omission in this publication, although care has been taken to
make it as complete and accurate as possible at the time of publication. However, due to the variety of outdoor power equipment
and continuing product changes that occur over time, updates will be made to these instructions from time to time. Therefore, it
may be necessary to obtain the latest materials before servicing or repairing a product. The company reserves the right to make
changes at any time to this publication without prior notice and without incurring an obligation to make such changes to
previously published versions. Instructions, photographs and illustrations used in this publication are for reference use only and
may not depict actual model and component parts. © Copyright 2005 MTD Products Inc. All Rights Reserved
MTD Products LLC - Product Training and Education Department
753 Wide Cut Mower
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
This Service Manual is not a substitute for the Operator’s Manual. You must read, understand
and follow all of the directions in this manual as well as the Operator’s Manual before working
on this power equipment.
PRINTED IN USA
TROY-BILT LLC, P.O. BOX 361131, CLEVELAND, OH 44136-0019
FORM NO.769-00945
(10/2003)
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
Servicing the Troy-Bilt Wide Cut 33” Combination Mower
Includes update Information for older models
TROY-BILT WIDE CUT MOWER
Model 12A-E753B063 (NEW)
• 9 hp briggs & Stratton I/C OHV engine
• Electric Start
• 33” Deck
• Self-Propelled Multiple Speed Gear Drive
• Peerless Transaxle
• BLade Brake Clutch
• Automatic Parking Brake
• Single Lever Height Adjustment
• 3-in-1 Capacity
The key switch is located on the right side of the console. See Figure 2.
Key Switch
Figure 2
The unit also features an oversize fuel tank with a manual shutoff valve. See Figure 3.
The Model E753B features a standard size battery and
electric start. See Figure 1.
Gas Tank
Battery
Figure 1
Fuel Shutoff
Figure 3
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
The fuse is located on the right side next to the battery
and the solenoid is mounted on the battery support
bracket under the battery. See Figure 4.
Fuse
Solenoid
Starter Motor
Figure 4
Most electrical problems can be diagnosed using a
ohm meter and checking continuity of the ignition
switch and wires to each component. See Figure 5.
1. BLADE DRIVE BELT REMOVAL
1.1. Make sure the blade drive control is disengaged.
1.2. Using a ½ inch socket remove the four screws
securing the belt cover and removed the cover.
See Figure 6.
Cover Screws (2 on each side)
Figure 6
Figure 5
NOTE: The Operator’s Manual that comes with
the unit has a wealth of information regarding
the setup, operation and servicing of this unit.
NOTE: This Service Manual is a supplement to
the Operator’s Manual.
IMPORTANT: Please read, understand and follow all safety procedures listed in the Operator’s
Manual when working on this unit.
CAUTION: Before servicing the unit place it on a
level surface, turn off the engine and let the unit
cool, and disconnect the spark plug wire. On
electric start units, make sure the key is in the
“off” position.
1.3. Using a ½ inch socket, remove the two screws
attaching the flap bracket to the frame. Remove
the flap bracket. See Figure 7.
Mounting Screws
Flap Bracket
View From Below
Figure 7
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
1.4. Using a 9/16 inch socket and opened end
wrench, remove the front idler pulley to allow the
belt to be removed from around the pulley. See
Figure 8.
Front Idler Pulley
Idler Pulley Mounting Bracket
Figure 8
NOTE: Maintain correct order of parts.
1.5. Using a 9/16 inch socket and opened end
wrench, remove the rear idler pulley to allow the
belt to be removed from around the pulley. See
Figure 8.
NOTE: Maintain correct order of parts. The pulley mounts to the front hole in the idler arm.
1.6. Drop the belt off the engine pulley.
1.7. Replace the belt and assemble in the reverse
order.
NOTE: Maintain orientation of belt guides during
reassembly. See Figure 8.
Rear Idler Pulley
2. DECK IDLER PULLEY INSPECTION
2.1. Using a 9/16 inch socket and opened end
wrench, remove the front and rear deck idler pulleys and inspect for wear.
NOTE: There is a pyramid washer under the
front mounting bracket that helps maintain the
position of the front idler pulley. See Figure 9.
Lock Washer
Nut
Bracket Position
Lock Washer
Nut
Pyramid Washer
Bracket Position
3. BLADE DRIVE BELT ADJUSTMENT
3.1. Using a ½ inch socket remove the four screws
3.2. With mower on level ground, adjust the blade
3.3. With the blade drive control disengaged, set a
Flat Washers
securing the belt cover and remove the cover.
cutting height to about 3”.
gap of 1/8” between the spring and the flat
washer on the end of the threaded portion of the
lift crank by adjusting the nut. See Figure 10.
Rear Idler Pulley
Flat Washer
Front Idler Pulley
Figure 9
Hex Head
Cap Screw
Belt Guide
Hex Head
Cap Screw
Belt Guide
3
1/8” Gap
Figure 10
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
3.4. With the engine OFF have a helper engage the
blade drive. Measure the distance between the
center of the idler pulley and the left drive pulley.
The measurement should be between 5 1/2” and
5 5/8”. See Figure 11.
5-1/2” to 5-5/8”
Figure 11
NOTE: If the blade drive belt slips during opera-
tion it may be necessary to slide the idler pulley
forward in the slot on the idler arm. Loosen the
hardware on the idler pulley and slide the pulley
forward slightly. Tighten the hardware. See Figure 8.
4.1. With the engine off, engage the operator presence control and the blade drive control. See
Figure 12.
Blade Drive Control
4.2. Without releasing the controls, look inside the
cutout at the left rear of the frame and make sure
that the operators presence control latches are
fully engaged. See Figure 13.
Operator Presence Control
Hairpin Clip
Figure 12
Latched Position
IMPORTANT: The blades must come to a complete stop when the blade engagement lever is
released.
4. BLADE DRIVE CONTROL LEVER ADJUSTMENT
NOTE: Make the following adjustment if the
blade drive control lever releases during operation.
Hex Nut
Figure 13
4.3. To adjust, remove the hairpin clip on the upper
end of the operator presence control arm.
4.4. Loosen the hex nut and shorten the rod by one
or two turns. (Do not over adjust.) Tighten the
hex nut securely. See Figure 13.
4.5. If properly adjusted, the blade drive control will
disengage when the operators presence control
is released.
5. BLADE SPINDLE BELT REPLACEMENT
5.1. Using a ½ inch socket remove the four screws
securing the belt cover and removed the cover.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
5.2. Using a ½ inch socket loosen the screw securing
the belt tension adjustment bracket and turn it
out of the way. See Figure 14.
Belt Tension Adjustment Bracket
Figure 14
5.3. Align the sight holes in the right pulley with the
spindle housing mounting bolts. See Figure 15.
5.7. Temporarily remove the blade drive belt from
around the left blade drive pulley. See Figure 16.
Blade Drive Belt
Figure 16
5.8. While holding the Idler arm and brake away from
the left blade drive pulley, remove the toothed
belt from around the left cogged pulley and up
and over the drive pulley. See Figure 17.
Sight Holes (4)
Figure 15
5.4. Using a ½ inch deep socket loosen the four
mounting bolts securing the spindle housing to
the deck. See Figure 15.
5.5. Slide the pulley assembly to the left to loosen
tension on the cogged belt.
5.6. Remove the cogged belt from around the right
cogged pulley.
Toothed Belt
Figure 17
5.9. Replace the belt with a new belt.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
6.2. Secure the operator presence control lever to
IMPORTANT: Time the blades properly during
reassembly. Set the cutting blades perpendicular
to each other during installation of the toothed
drive belt.There are arrows cast into the cogged
pulleys to help align the blades. Offset these
arrows by 90 degrees. See Figure 18.
the left handlebar using a plastic tie or tape. See
Figure 19.
Operator Presence Lever
Plastic Tie
Blade Alignment Arrow
Figure 18
NOTE: The arrows do not indicate the blade
position. Blades are 90 degrees offset from the
arrow position.
5.10. Rotate the tension adjustment bracket into position and apply tension to the spindle housing
and cogged belt.
5.11. Tighten the adjustment bracket screw.
5.12. Tighten the four spindle mounting bolts to 15 ft.
lbs.
NOTE: Proper belt tension is achieved when the
belt deflects approximately 1/2 inch at the midpoint between the pulleys when applying moderate finger pressure.
5.13. Reinstall the blade drive belt over the left drive
spindle.
Figure 19
6.3. Engage the blade control lever to move the
brake pad away from the drive pulley. See Figure 20.
Blade Control Lever Engaged
Figure 20
5.14. Install the belt cover.
6. BLADE BRAKE REPLACEMENT
6.1. Using a ½ inch socket remove the four screws
securing the belt cover and removed the cover.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
6.4. Using a socket remove the Sems nuts and flat
head screws securing the brake pad to the idler
arm and remove the old brake pad. See Figure
21.
Brake Pad
Sems Nuts
Figure 21
6.5. Loosely install the new brake pad.
6.6. Release the operator presence control and allow
the new brake pad to engage the sheave of the
idler pulley. See Figure 22.
Brake pad seats into sheave
7.2. Using a ½ inch socket, remove the two screws
attaching the flap bracket to the frame. Remove
the flap bracket. See Figure 23.
Screws
Flap Bracket
Figure 23
7.3. Using a ½ inch socket remove the four screws
securing the belt cover and remove the cover.
7.4. Temporarily remove the blade drive belt from
around the engine pulley.
7.5. Use a 9/16 inch socket to loosen the locknut
securing the pulley and belt guide to the front
idler bracket. Remove the belt guide and pulley.
See Figure 24.
Figure 22
6.7. Tighten the Sems nut to secure the brake pad to
the idler arm.
7. WHEEL DRIVE BELT REMOVAL AND REPLACEMENT.
NOTE: Some older units may not have all the
belt guides installed.
7.1. Release all mower controls.
Front Idler Bracket Pulley
Backside Idler Pulley
Engine Pulley
Trans. Pulley
Trans. Pulley Belt Guide Cap Screw
Figure 24
NOTE: Maintain correct order of parts:
- Pulley
- Washer
- Belt Guide
- Nut
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
7.6. Use a 9/16 inch socket to loosen the cap screw
securing the transmission pulley belt guide to the
frame and engine mount. Pivot the belt guide
away from the pulley. See Figure 24.
7.7. Using a 1/2 inch socket, loosen the nut securing
the rear belt support bracket to the transmission.
Pivot the belt support away from the belt. See
Figure 25.
Rear Belt Support Bracket
Figure 25
7.8. Remove the wheel drive belt from the engine
sheave, backside idler and the transmission pulley. See Figure 26.
INSTALL BELT INSIDE OUT!
8. WHEEL DRIVE BELT ADJUSTMENT
The wheel drive belt requires adjustment when belt
slippage occurs. This is most noticeable when more
traction is needed (such as going up slopes).
8.1. Remove the hair pin clip from the upper end of
the wheel drive control rod. Slide the rod out of
the lever assembly. See Figure 27.
Hairpin Clip
Wheel Drive Control
Rod
Figure 27
8.2. Using a 9/16” opened end wrench, loosen the
jam nut on the lower end of the rod. See Figure
28.
Wheel Drive Control Rod
Backside
Idler Pulley
Engine Pulley
Transmission Pulley
Figure 26
7.9. Install a new belt in the reverse order.
NOTE: The new belt must be installed inside
out. The “V” side of the belt lies against the
engine sheave only. The flat side of the belt lies
against the transmission pulley and idler pulleys.
Front Idler
Jam Nut
Figure 28
8.3. Thread the rod one or two turns clockwise for
more tension.
8.4. Insert the rod back into the hole in the wheel
drive control lever and install the hairpin clip.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
8.5. Test the operation of the unit. Repeat the adjustment if necessary.
NOTE: Most comfortable operation will be
obtained when the adjustment allows the lever to
just make contact with the hand grip when sufficient traction is achieved.
8.6. When adjusted properly, tighten the lower jam
nut against the block.
9. WHEEL BRAKE ADJUSTMENT
This adjustment may be required it the unit does not
hold on a hill with the operator presence control disengaged, or if the brake drags with the operator presence
control engaged and the transmission is in neutral.
(The unit should roll freely in this position.)
NOTE: With the operator presence control
released there should be a 3/8” to 5/16” gap
between the back of the brake arm and the
bracket. See Figure 29.
9.1. To adjust use a 1/2” wrench to make a small (1/4
turn) adjustment to the brake locknut until the
correct measurement is achieved. It may be necessary to relieve spring tension when decreasing distance. Have an assistant engage the
operator presence control while you adjust the
nut. See Figure 30.
Figure 30
Adjustment Nut
Figure 29
3/8” to 5/16” Gap
10. TRANSMISSION NEUTRAL ADJUSTMENT
With the unit turned off and the shift lever in the neutral
detent position you should be able to hold down the
operator presence control and roll the unit easily forward and back. Check this from forward and reverse
positions. If the unit is in gear you will need to perform
a neutral adjustment.
10.1. Place the shift lever in the neutral detent position
of the console. See Figure 31.
Shift Lever Roll Pin
in Detent Position
UNDER CONSOLE
9
Figure 31
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
10.2. Remove the hairpin clip securing the shift link
and lower it from the shift rod. See Figure 32.
Shift Rod
Shift Link
Hair Pin Clip
Figure 32
10.3. Moved the shift arm back and forth as necessary
into each detent until the transmission is in neutral.
NOTE: Moving the shift arm clockwise all the
way to the left, and then one notch counterclockwise should put the transmission in neutral. With
the operator presence control lever down you
should be able to easily roll the unit.
11.3. Using a recoil rope or spring removal tool,
remove the extension spring attached to the
deck bracket and idler arm. See Figure 33.
Recoil Rope
Deck Bracket
Extension Spring
Idler Arm
Figure 33
11.4. Remove the spring from the idler arm.
11.5. Using a medium size 45 degree retaining ring
tool, remove the retaining ring securing the idler
arm to the deck bracket. See Figure 34.
Retaining Ring
10.4. With the transmission in neutral, rotate the shift
link until the hooked end easily fits into the hole
at the bottom end of the shift rod. See Figure 32.
NOTE: The shift rod must be held in the neutral
position while the shift link is adjusted.
10.5. Secure the shift link into the shift rod with the
hairpin clip removed earlier.
10.6. Recheck the neutral position and readjust if necessary. Check from both the forward and reverse
direction.
11. DECK REMOVAL
11.1. Using a ½ inch socket remove the four screws
securing the belt cover and remove the cover.
11.2. Remove the blade drive belt (see blade drive
belt removal section)
Idler Bracket
Retaining Ring Pliers
Flat Washer and Flange Bushing
Figure 34
11.6. Remove the flat washers. There may be as few
as 2 and as many as 4 washers. and flange
bushing from the idler arm. Inspect the flange
bushing for wear.
11.7. Remove the idler arm from the deck bracket and
set it on the mower support.
11.8. Support the deck from below.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
11.9. Using a 9/16 inch socket and open end wrench,
remove the four shoulder bolts, flat washers and
flange locknuts securing the deck to the lift
assemblies. See Figure 35.
Shoulder Bolts, Flat Washers and Flange Locknuts
Figure 35
NOTE: Maintain the proper orientation of the
shoulder bolts during reassembly.
11.10. Remove the deck from under the unit.
12. RIGHT SPINDLE REMOVAL
12.3. Align the sight holes in the right pulley with the
spindle housing deck mounting bolts. See Figure
37.
Sight Holes (4)
Figure 37
12.4. Using a ½ inch deep socket loosen the four
mounting bolts securing the right spindle housing to the deck. See Figure 37.
12.5. Using a shop rag to protect your hand, hold the
blade secure while removing the flange lock
screw that secures the spindle shaft with an air
gun and 5/8 inch socket. See Figure 38.
12.1. Using a ½ inch socket remove the four screws
securing the belt cover and remove the cover.
12.2. Using a ½ inch socket loosen the screw securing
the belt tension adjustment bracket and turn it
out of the way. See Figure 36.
Belt Tension Adjustment Bracket
Figure 36
Cogged Pulley
HOLD BLADE FROM BELOW
Figure 38
12.6. Remove the cutting blade and spindle shaft from
the spindle housing.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
12.7. Remove the cogged pulley, spacer, washer, lock
washer and screw from the spindle housing.
Components on bench. See Figure 39.
Cogged Pulley
Spindle
Blade
Blade Mounting Screw
12.8. Using a ½ inch socket remove the four mounting
bolts securing the spindle to the deck. See Figure 40.
Special Thrust Washer
Spacer
Flat Washer
Lock Washer
Screw
Spindle Shaft
Belleville Washer
Figure 39
removed also torque the blade mounting screws
to 35 ft. lbs.
NOTE: Time the blades properly during reassembly. Set the cutting blades perpendicular to
each other during installation of the toothed drive
belt. See Figure 41.
Figure 41
Spindle Mounting Bolts (4)
Figure 40
NOTE: Hold the housing from underneath the
deck when removing the final mounting bolt.
Remove the housing from the deck.
12.9. Inspect the housing for excessive wear or damage and replace as needed. See Figure 39.
12.10. Assembly is the reverse order of disassembly.
IMPORTANT: During reassembly place Locktite
242 on the threads of the spindle pulley mounting bolts and torque to 35 ft. lbs. If blades are
13. LEFT SPINDLE REMOVAL
13.1. Using a ½ inch socket remove the four screws
securing the belt cover and removed the cover.
13.2. Using a ½ inch socket loosen the screw securing
the belt tension adjustment bracket and turn it
out of the way. See Figure 42.
Belt Tension Adjustment Bracket
Figure 42
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
13.3. Align the sight holes in the right pulley with the
spindle housing deck mounting bolts. See Figure
43.
Sight Holes
Figure 43
13.4. Using a ½ inch deep socket loosen the four
mounting bolts securing the spindle housing to
the deck. See Figure 43.
13.5. Slide the pulley assembly to the left to loosen
tension on the cogged belt.
13.7. Secure the operator presence control lever to
the left handlebar using a plastic tie or tape. See
Figure 45.
Operator Presence Control
Plastic Tie
Figure 45
13.8. Engage the blade control lever to move the
brake pad away from the drive pulley. See Figure 46.
Blade Engaged
13.6. Remove the deck drive belt from around the left
spindle pulley. See Figure 44.
Deck Drive belt
Left Spindle Pulley
Figure 44
Figure 46
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
13.9. Using a shop rag to protect your hand, hold the
blade secure while removing the flange lock
screw that secures the left spindle shaft with an
air gun and 5/8 inch socket. See Figure 47.
Left Drive Pulley
HOLD BLADE FROM BELOW
Figure 47
13.10. Remove the cutting blade and spindle shaft from
the left spindle housing.
NOTE: There will be a lock washer and flat
washer securing the drive pulley to the blade
spindle.
13.11. Remove the drive pulley from the top of the
cogged pulley.
NOTE: There will be a spacer between the drive
pulley and the cogged pulley assembly. See Figure 48.
Cogged Pulley
Drive Pulley
Screw
13.13. Using a ½ inch socket, loosen the four mounting
bolts securing the spindle housing to the deck.
See Figure 49.
Spindle Mounting Bolts (4)
Figure 49
NOTE: Hold the housing from underneath the
deck when removing the final mounting bolt.
Remove the housing from the deck.
13.14. Inspect the housing for excessive wear or damage and replace as needed.
13.15. Assembly is the reverse order of disassembly.
IMPORTANT: Torque the spindle housing flange
lock screws to 15 foot pounds during reassembly.
IMPORTANT: During assembly, place Locktite
242 on the threads of the spindle shaft screw
and torque to 35 ft. lbs.
IMPORTANT: Time the blades properly during
reassembly. Set the cutting blades perpendicular
to each other during installation of the toothed
drive belt. Torque the blade mounting screw to
35 ft. lbs.
Spacer
Special Thrust Washer
Figure 48
13.12. Removed the cogged pulley assembly and special thrust washer from the top of the Spindle
assembly.
Flat Washer
Lock Washer
14. TRANSMISSION REMOVAL
14.1. Remove the blade drive belt (see the Blade
Drive Belt Removal section)
14.2. Remove the wheel drive belt (see the Wheel
Drive Belt Removal section)
NOTE: While it may be possible to remove the
transmission while the deck is installed, it would
be easier to first remove the deck.
14.3. Support the frame off the ground in a way that
allows you to work on the transmission from
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
underneath the unit. You will also be removing
the wheels and transmission from this position.
14.4. Using a ½ inch socket, remove the two screws
attaching the flap bracket to the frame. Remove
the flap bracket. See Figure 50.
Mounting Screws
Flap Bracket
Figure 50
14.5. Using a pair of needle nosed pliers, remove the
left rear cotter pin securing the lower brake rod
to the brake arm. See Figure 51.
14.7. Using a pair of needle nosed pliers remove the
hair pin securing the shift link rod to the shift rod.
See Figure 52.
Shift Rod
Shift Link Rod
Hair Pin
Figure 52
14.8. Remove the tang retaining ring securing one of
the wheels. See Figure 53.
Tang Retaining Ring
Lower Brake Rod
Cotter Pin
Figure 51
14.6. Remove the lower brake rod from the brake arm.
Figure 53
14.9. Remove the special washers and the wheel.
NOTE: Additional wheel spacing washers can
be added when required.
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
14.10. Remove the square key from the axle. See Figure 54.
Square Key
Figure 54
14.11. Repeat for the other wheel.
14.12. Using a ½ inch socket and opened end wrench
remove the top locknuts, flat washers and
screws securing the transmission to the frame.
See Figure 55.
14.13. Remove the transmission from the unit for service. See Figure 56.
Figure 56
NOTE: Contact Tecumseh-Peerless for trans-
mission service information during the warranty
period. Model number information is located on
the right side of the transmission. See Figure
57.
Transmission Mounting Bolts (4)
Figure 55
NOTE: Support the transmission during this pro-
cedure.
Transmission Model Number
Figure 57
15. INSTALLATION OF WHEEL DRIVE BELT GUARDS - UPDATE
NOTE: Current production units have additional
belt guards installed at the factory. This update
will cover older units without pulley belt guards.
On older units the long run of the wheel drive belt creates several issues.
• The belt may come off one of the pulleys.
• The belt may not fully disengage from the engine
pulley, causing engine creep or hard shifting
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
A kit is available to correct these situations.
KIT NUMBER: 753-04509
Contents: (3) belt guides
• Belt Guide - 1760096
• Belt Guide - 1769522
• Belt Support Bracket - 1768381001
Installation procedures are as follows:
15.1. Using a ½ inch socket, remove the four flange
screws securing the Belt Guard cover to the
mower support frame. See Figure 58.
Flange Screws (two on each side)
15.3. Reinstall the idler pulley onto the carriage bolt
followed by the original flat washer, the new belt
guide (1760096) and secure it with the original
lock nut. See Figure 60.
Flat Washer
(Between Guide
and Pulley)
Idler Pulley
NOTE: Face the belt guide towards the front of
the unit. The flat washer must go between the
Guide and the pulley in order to provide clearance for the guide.
Carriage Bolt
Figure 60
Belt Guide
Lock Nut
Figure 58
15.2. Using a 9/16 inch socket remove the lock nut
securing the idler pulley to the idler arm. See
Figure 59.
Idler Arm
Lock Nut
Figure 59
Idler Pulley
15.4. Reinstall the belt guard cover.
15.5. Using a ½ inch socket and extension, remove
the two flange screws that secure the flap
bracket to the frame. Remove the flap bracket
and set it aside. See Figure 61.
Flange Screws
Figure 61
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
15.6. Using a 9/16 inch socket and extension, remove
the left rear engine mounting hex cap screw.
See Figure 62.
Left rear engine mounting cap screw
(Hidden
above
transaxle)
View from directly below transaxle
Figure 62
15.7. Place the belt guide (1769522) in a vise and
using a cold chisel, open the eyelet until the hex
cap screws can pass through the opening. See
Figure 63.
Hex Cap ScrewPry open
15.8. Reinstall the hex cap screw through the frame
and into the engine. See Figure 64.
Engine Mounting
Hex Cap Screw
Belt Guide
Belt routing and Guide orientation are important
Figure 64
15.9. Align the belt guide so that the V belt is on the
inside and on top of the guide.
NOTE: Make sure that the V belt does not drag
on the guide when engaged and that the lower
portion of the guide is at least 1/8 inch away
from the pulley.
15.10. Use a vice to straighten the upper bend in the
belt support bracket. (1768381001) See Figure
65.
Belt Guide
Belt Support Bracket
Upper bend straightened
Figure 63
Figure 65
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
15.11. Using a 2 inch by ¼ - 20 bolt, lock washer, and
hex nut (not supplied in kit) attach the belt support bracket to the top of the transaxle using the
empty bolt hole at the left rear of the transaxle.
See Figure 66.
Belt Support Bracket
1/8” clearance
Transaxle Pulley
Pivot Shaft
Empty Bolt Hole
Figure 66
NOTE: The guide must be bent to clear the pivot
shaft assembly while maintaining a distance of
1/8th inch of clearance from the transaxle pulley.
contains all installation directions. See Figure
67.
Older Style Guides
Newer Style Guides
Flap Bracket
Figure 67
NOTE: The latest production of these units uses
a newer flap bracket that integrates the belt
guides into the metal stamping. This newer flap
bracket will NOT fit on older units.
16. ENGINE PULLEY BELT GUIDE KIT
NOTE: Some older units have a flap bracket that
uses removable engine pulley belt guides.
Updated belt guides have been manufactured as
a kit. Part Number 1770557. If your unit uses the
older style guides, obtain the update kit. The kit
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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
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