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Servicing the Troy-Bilt Wide Cut 33” Combination Mower

 7

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.

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. 

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.

Figure 21

Brake Pad

Sems Nuts

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.

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.

NOTE: 

Maintain correct order of parts:

         - Pulley

         - Washer

         - Belt Guide

         - Nut

Figure 23

Flap Bracket

Screws

Figure 24

Front Idler Bracket Pulley

Engine Pulley

Trans. Pulley

Backside Idler Pulley

Trans. Pulley Belt Guide Cap Screw

Summary of Contents for 12A-E753B063

Page 1: ...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 ina...

Page 2: ......

Page 3: ...Brake Single Lever Height Adjustment 3 in 1 Capacity The Model E753B features a standard size battery and electric start See Figure 1 Figure 1 Gas Tank Battery The key switch is located on the right s...

Page 4: ...Please read understand and fol low 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...

Page 5: ...ting Bracket 2 DECK IDLER PULLEY INSPECTION 2 1 Using a 9 16 inch socket and opened end wrench remove the front and rear deck idler pul leys and inspect for wear NOTE There is a pyramid washer under t...

Page 6: ...ontrol lever releases during opera tion 4 1 With the engine off engage the operator pres ence control and the blade drive control See Figure 12 4 2 Without releasing the controls look inside the cutou...

Page 7: ...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 Figure 14 Belt Tension Adjustment Bracket Figure...

Page 8: ...t 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 mid point between the pulleys when a...

Page 9: ...ll mower controls Figure 21 Brake Pad Sems Nuts Figure 22 Brake pad seats into sheave 7 2 Using a inch socket remove the two screws attaching the flap bracket to the frame Remove the flap bracket See...

Page 10: ...side of the belt lies against the transmission pulley and idler pulleys 8 WHEEL DRIVE BELT ADJUSTMENT The wheel drive belt requires adjustment when belt slippage occurs This is most noticeable when m...

Page 11: ...a 3 8 to 5 16 gap between the back of the brake arm and the bracket See Figure 29 Figure 29 3 8 to 5 16 Gap Adjustment Nut 9 1 To adjust use a 1 2 wrench to make a small 1 4 turn adjustment to the bra...

Page 12: ...position and readjust if nec essary Check from both the forward and reverse direction 11 DECK REMOVAL 11 1 Using a inch socket remove the four screws securing the belt cover and remove the cover 11 2...

Page 13: ...tension adjustment bracket and turn it out of the way See Figure 36 Figure 35 Shoulder Bolts Flat Washers and Flange Locknuts Figure 36 Belt Tension Adjustment Bracket 12 3 Align the sight holes in th...

Page 14: ...on the threads of the spindle pulley mount ing bolts and torque to 35 ft lbs If blades are removed also torque the blade mounting screws to 35 ft lbs NOTE Time the blades properly during reas sembly S...

Page 15: ...lley assembly to the left to loosen tension on the cogged belt 13 6 Remove the deck drive belt from around the left spindle pulley See Figure 44 Figure 43 Sight Holes Figure 44 Deck Drive belt Left Sp...

Page 16: ...deck 13 14 Inspect the housing for excessive wear or dam age and replace as needed 13 15 Assembly is the reverse order of disassembly IMPORTANT Torque the spindle housing flange lock screws to 15 foo...

Page 17: ...he lower brake rod to the brake arm See Figure 51 14 6 Remove the lower brake rod from the brake arm Figure 50 Flap Bracket Mounting Screws Figure 51 Cotter Pin Lower Brake Rod 14 7 Using a pair of ne...

Page 18: ...ns mission service information during the warranty period Model number information is located on the right side of the transmission See Figure 57 15 INSTALLATION OF WHEEL DRIVE BELT GUARDS UPDATE NOTE...

Page 19: ...ws two on each side Figure 59 Idler Arm Idler Pulley Lock Nut 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...

Page 20: ...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 a...

Page 21: ...EY 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...

Page 22: ...Servicing the Troy Bilt Wide Cut 33 Combination Mower 20...

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