WAM !! Troy Bilt White Outdoor 33 Inch Wide Cut Mower Service Repair Manual
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www.mymowerparts.com Service Manual 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. TROY-BILT LLC, P.O. BOX 361131, CLEVELAND, OH 44136-0019 PRINTED IN USA FORM NO.769-00945 (10/2003) K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com TABLE OF CONTENTS Blade Drive Belt Removal ...............................................................................1 Deck Idler Pulley Inspection ............................................................................3 Blade Drive Belt Adjustment............................................................................3 Blade Drive Control Lever Adjustment ............................................................4 Blade Spindle Belt Replacement.....................................................................4 Blade Brake Replacement...............................................................................6 Wheel Drive Belt Servicing..............................................................................7 Wheel Drive Belt Adjustment...........................................................................8 Wheel Brake Adjustment.................................................................................9 Transmission Neutral Adjustment....................................................................9 Deck Removal .................................................................................................10 Right Spindle Removal....................................................................................11 Left Spindle Removal ......................................................................................12 Transmission Removal....................................................................................14 Wheel Drive Belt Guards Installation...............................................................16 Engine Pulley Belt Guide Installation...............................................................19 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower Servicing the Troy-Bilt Wide Cut 33” Combination Mower TROY-BILT WIDE CUT MOWER The key switch is located on the right side of the console. See Figure 2. OLDER STYLE ENGINE Non Electric Start Unit Key Switch Figure 2 Model 12A-E753B063 (NEW) • • • • • • • • • The unit also features an oversize fuel tank with a manual shutoff valve. See Figure 3. 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 Model E753B features a standard size battery and electric start. See Figure 1. Gas Tank Fuel Shutoff Figure 3 Battery Figure 1 1 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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 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. Solenoid Cover Screws (2 on each side) 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. Figure 6 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. Figure 5 Mounting Screws NOTE: The Operator’s Manual that comes with the unit has a wealth of information regarding the setup, operation and servicing of this unit. Flap Bracket NOTE: This Service Manual is a supplement to the Operator’s Manual. Figure 7 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. 2 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. 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 Rear Idler Pulley Nut Flat Washers Front Idler Pulley Bracket Position Rear Idler Pulley Flat Washer Belt Guide Hex Head Cap Screw Lock Washer Nut Idler Pulley Mounting Bracket Hex Head Cap Screw Figure 8 Pyramid Washer NOTE: Maintain correct order of parts. 1.5. Bracket Position 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. Front Idler Pulley Belt Guide Figure 9 3. BLADE DRIVE BELT ADJUSTMENT NOTE: Maintain correct order of parts. The pulley mounts to the front hole in the idler arm. 3.1. Using a ½ inch socket remove the four screws securing the belt cover and remove the cover. 1.6. Drop the belt off the engine pulley. 3.2. 1.7. Replace the belt and assemble in the reverse order. With mower on level ground, adjust the blade cutting height to about 3”. 3.3. With the blade drive control disengaged, set a 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. NOTE: Maintain orientation of belt guides during reassembly. See Figure 8. 1/8” Gap Figure 10 3 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 3.4. 4.1. 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. With the engine off, engage the operator presence control and the blade drive control. See Figure 12. Blade Drive Control 5-1/2” to 5-5/8” Operator Presence Control Hairpin Clip Figure 12 Figure 11 4.2. NOTE: If the blade drive belt slips during operation 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. 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. Latched Position IMPORTANT: The blades must come to a complete stop when the blade engagement lever is released. 4. Hex Nut BLADE DRIVE CONTROL LEVER ADJUSTMENT NOTE: Make the following adjustment if the blade drive control lever releases during operation. 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. 4 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. 5.7. Temporarily remove the blade drive belt from around the left blade drive pulley. See Figure 16. Blade Drive Belt Belt Tension Adjustment Bracket Figure 16 Figure 14 5.8. 5.3. Align the sight holes in the right pulley with the spindle housing mounting bolts. See Figure 15. 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. Toothed Belt Sight Holes (4) Figure 15 Figure 17 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. 5.9. Replace the belt with a new belt. 5 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 6.2. 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. Secure the operator presence control lever to the left handlebar using a plastic tie or tape. See Figure 19. Operator Presence Lever Plastic Tie Figure 19 Blade Alignment Arrow 6.3. Figure 18 Engage the blade control lever to move the brake pad away from the drive pulley. See Figure 20. Blade Control Lever Engaged 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. Figure 20 5.13. Reinstall the blade drive belt over the left drive spindle. 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. 6 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. 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. Brake Pad Screws Sems Nuts Flap Bracket Figure 23 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 7.3. 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. Front Idler Bracket Pulley Backside Idler Pulley Engine Pulley Trans. Pulley Figure 22 6.7. 7. Trans. Pulley Belt Guide Cap Screw Tighten the Sems nut to secure the brake pad to the idler arm. Figure 24 NOTE: Maintain correct order of parts: WHEEL DRIVE BELT REMOVAL AND REPLACEMENT. - Pulley - Washer NOTE: Some older units may not have all the belt guides installed. 7.1. - Belt Guide Release all mower controls. - Nut 7 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 7.6. 7.7. 8. 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. 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). 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. 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. Rear Belt Support Bracket Hairpin Clip Wheel Drive Control Rod Figure 27 Figure 25 7.8. 8.2. Remove the wheel drive belt from the engine sheave, backside idler and the transmission pulley. See Figure 26. Wheel Drive Control Rod INSTALL BELT INSIDE OUT! Backside Idler Pulley Using a 9/16” opened end wrench, loosen the jam nut on the lower end of the rod. See Figure 28. Front Idler Jam Nut Engine Pulley Transmission Pulley Figure 28 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. 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. 8 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 8.5. Test the operation of the unit. Repeat the adjustment if necessary. 9.1. 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 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. 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. Figure 30 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. 3/8” to 5/16” Gap 10.1. Place the shift lever in the neutral detent position of the console. See Figure 31. Adjustment Nut Shift Lever Roll Pin in Detent Position Figure 29 UNDER CONSOLE Figure 31 9 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 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. 10.2. Remove the hairpin clip securing the shift link and lower it from the shift rod. See Figure 32. Shift Rod Recoil Rope Deck Bracket Extension Spring Idler Arm Shift Link Hair Pin Clip Figure 32 Figure 33 10.3. Moved the shift arm back and forth as necessary into each detent until the transmission is in neutral. 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. 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. 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. Idler Bracket 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. Retaining Ring Pliers Flat Washer and Flange Bushing 10.6. Recheck the neutral position and readjust i necessary. Check from both the forward and reverse direction. Figure 34 11. DECK REMOVAL 11.1. Using a ½ inch socket remove the four screws securing the belt cover and remove the cover. 11.6. Remove the flat washers (2-4) and flange bushing from the idler arm. Inspect the flange bushing for wear. 11.2. Remove the blade drive belt (see blade drive belt removal section) 11.7. Remove the idler arm from the deck bracket and set it on the mower support. 11.8. Support the deck from below. 10 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. 12.3. Align the sight holes in the right pulley with the spindle housing deck mounting bolts. See Figure 37. Sight Holes (4) Shoulder Bolts, Flat Washers and Flange Locknuts Figure 37 Figure 35 12.4. Using a ½ inch deep socket loosen the four mounting bolts securing the right spindle housing to the deck. See Figure 37. NOTE: Maintain the proper orientation of the shoulder bolts during reassembly. 11.10. Remove the deck from under the unit. 12. 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. RIGHT SPINDLE REMOVAL 12.1. Using a ½ inch socket remove the four screws securing the belt cover and removed 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. Cogged Pulley HOLD BLADE FROM BELOW Figure 38 12.6. Remove the cutting blade and spindle shaft from the spindle housing. Belt Tension Adjustment Bracket Figure 36 11 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. removed also torque the blade mounting screws to 35 ft. lbs. Components on bench. See Figure 39. 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. Cogged Pulley Special Thrust Washer Spacer Flat Washer Lock Washer Spindle Screw Spindle Shaft Blade Blade Mounting Screw Belleville Washer Figure 39 12.8. Using a ½ inch socket remove the four mounting bolts securing the spindle to the deck. See Figure 40. Figure 41 Spindle Mounting Bolts (4) 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. 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. Belt Tension Adjustment Bracket 12.10. Assembly is the reverse order of disassembly. Figure 42 IMPORTANT: During reassembly place Locktite 242 on the threads of the spindle pulley mounting bolts and torque to 35 ft. lbs. If blades are 12 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. 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 Sight Holes Figure 45 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. 13.8. Engage the blade control lever to move the brake pad away from the drive pulley. See Figure 46. 13.5. Slide the pulley assembly to the left to loosen tension on the cogged belt. Blade Engaged 13.6. Remove the deck drive belt from around the left spindle pulley. See Figure 44. Deck Drive belt Figure 46 Left Spindle Pulley Figure 44 13 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 13.13. Using a ½ inch socket, loosen the four mounting bolts securing the spindle housing to the deck. See Figure 49. 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. Spindle Mounting Bolts (4) Left Drive Pulley HOLD BLADE FROM BELOW Figure 49 Figure 47 NOTE: Hold the housing from underneath the deck when removing the final mounting bolt. Remove the housing from the deck. 13.10. Remove the cutting blade and spindle shaft from the left spindle housing. 13.14. Inspect the housing for excessive wear or damage and replace as needed. NOTE: There will be a lock washer and flat washer securing the drive pulley to the blade spindle. 13.15. Assembly is the reverse order of disassembly. 13.11. Remove the drive pulley from the top of the cogged pulley. IMPORTANT: Torque the spindle housing flange lock screws to 15 foot pounds during reassembly. NOTE: There will be a spacer between the drive pulley and the cogged pulley assembly. See Figure 48. IMPORTANT: During assembly, place Locktite 242 on the threads of the spindle shaft screw and torque to 35 ft. lbs. Drive Pulley Cogged Pulley 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. Screw 14. Spacer 14.1. Remove the blade drive belt (see the Blade Drive Belt Removal section) Flat Washer Special Thrust Washer TRANSMISSION REMOVAL 14.2. Remove the wheel drive belt (see the Wheel Drive Belt Removal section) Lock Washer NOTE: While it may be possible to remove the transmission while the deck is installed, it would be easier to first remove the deck. Figure 48 13.12. Removed the cogged pulley assembly and special thrust washer from the top of the Spindle assembly. 14.3. Support the frame off the ground in a way that allows you to work on the transmission from 14 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower underneath the unit. You will also be removing the wheels and transmission from this position. 14.7. Using a pair of needle nosed pliers remove the hair pin securing the shift link rod to the shift rod. See Figure 52. 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. Shift Rod Shift Link Rod Mounting Screws Hair Pin Flap Bracket Figure 52 14.8. Remove the tang retaining ring securing one of the wheels. See Figure 53. 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. Tang Retaining Ring Lower Brake Rod Cotter Pin Figure 53 14.9. Remove the special washers and the wheel. NOTE: Additional wheel spacing washers can be added when required. Figure 51 14.6. Remove the lower brake rod from the brake arm. 15 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 14.13. Remove the transmission from the unit for service. See Figure 56. 14.10. Remove the square key from the axle. See Figure 54. Square Key Figure 54 Figure 56 NOTE: Contact Tecumseh-Peerless for transmission service information during the warranty period. Model number information is located on the right side of the transmission. See Figure 57. 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. Transmission Mounting Bolts (4) Transmission Model Number Figure 57 Figure 55 15. NOTE: Support the transmission during this procedure. 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 16 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower A kit is available to correct these situations. KIT NUMBER: 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. Contents: • Belt Guide - 1760096 • Belt Guide - 1769522 • Belt Support Bracket - 1768381001 Flat Washer (Between Guide and Pulley) 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. Belt Guide Lock Nut Flange Screws (two on each side) Idler Pulley Carriage Bolt Figure 60 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. 15.4. Reinstall the belt guard cover. Figure 58 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. 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 Idler Pulley Flange Screws Figure 61 Figure 59 17 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com Servicing the Troy-Bilt Wide Cut 33” Combination Mower 15.8. Reinstall the hex cap screw through the frame and into the engine. See Figure 64. 15.6. Using a 9/16 inch socket and extension, remove the left rear engine mounting hex cap screw. See Figure 62. Engine Mounting Hex Cap Screw Left rear engine mounting cap screw (Hidden above transaxle) Belt Guide Belt routing and Guide orientation are important Figure 64 View from directly below transaxle Figure 62 15.9. Align the belt guide so that the V belt is on the inside and on top of the guide. 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. Pry open 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. Hex Cap Screw 15.10. Use a vice to straighten the upper bend in the belt support bracket. (1768381001) See Figure 65. Belt Support Bracket Upper bend straightened Belt Guide Figure 63 Figure 65 18 K&T Saw Shop 606-678-9623 or 606-561-4983 www.mymowerparts.com 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. contains all installation directions. See Figure 67. Older Style Guides Belt Support Bracket 1/8” clearance Newer Style Guides Flap Bracket Transaxle Pulley Pivot Shaft Figure 67 Empty Bolt Hole 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. 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. 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 19 K&T Saw Shop 606-678-9623 or 606-561-4983
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