Troy-Bilt Pro-Line CRT Service Manual

Troy-Bilt Pro-Line CRT Manual

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  • Troy-Bilt Pro-Line CRT | Service Manual - Page 1
    Service Manual Small Frame Troy-Bilt Tillers MTD Products LLC - Product Training and Education Department FORM NUMBER 769-01529 11/2004
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 2
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 3
    TABLE OF CONTENTS Engine: ...1 Forward clutch cable adjustment 1 Forward clutch cable assembly replacement 3 Drive belt replacement 5 Forward return spring replacement 6 Transmission removal: ...7 Transmission disassembly 12 Transmission assembly 21 Forward Idler lever Pivot 32 Reverse clutch
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 4
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 5
    with the Troy-Bilt Factory School. UNIT FEATURES: • 3.75 Hp, 4-cycle engine • Power forward • 14" tilling width • 10" tine diameter • Adjustable tilling depth up to 6" • 10" Agricultural Tires 1. ENGINE: 1.1. Identify the engine that is powering the tiller, and refer to the Engine Owner's Manual for
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 6
    Troy-Bilt Small Frame Tillers 2.5. Squeeze the forward clutch bail to the upper handlebar. See Figure 2.5. 11. Release the forward clutch cable. 2.12. Loosen the hex jam nut securing the clutch cable assembly in position using a 3/8" wrench and a small adjustable wrench. See Figure 2.12. Hex Jam Nut
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 7
    the spark plug boot from the spark plug, and ground it to the engine. See Figure 3.1. Spark Plug Troy-Bilt Small Frame Tillers 3.2. Loosen the hex jam nut securing the forward clutch cable assembly to the adjustment screw using a 3/8" wrench and a small adjustable wrench. See Figure 3.2. Forward
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 8
    Troy-Bilt Small Frame Tillers 3.5. Remove the lower cable tie securing the forward clutch cable the forward idler lever. See Figure 3.10. Large Flat Washer Forward Idler Lever Belt Cover Z Fitting Figure 3.6 3.7. Slide the belt cover down the forward clutch cable until it is out of the work area
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 9
    the spark plug and ground it to the engine. See Figure 4.1. Spark Plug Troy-Bilt Small Frame Tillers 4.4. Remove the belt from the engine drive pulley and forward idler pulley. See Figure 4.4. Drive Pulley Forward Idler Pulley Drive Belt Spark Plug Boot Grounded Figure 4.1 4.2. Remove the hex
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 10
    Troy-Bilt Small Frame Tillers 5. FORWARD RETURN SPRING REPLACEMENT: 5.1. Remove the spark plug boot from the spark plug, and ground it to the engine. See Figure 5.1. Spark Plug 5.4. Remove the upper hook of the return spring from the right engine Washer Belt Cover Return Spring Right Engine Bracket
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 11
    Troy-Bilt Small Frame Tillers 6. TRANSMISSION REMOVAL: 6.7. Grasp the upper handlebar and pivot the unit NOTE: Perform the Drive Belt Replacement sec- onto it's nose. tion through forward drive belt removal, prior to 6.8. Secure the handlebar from above. performing this section. See Image
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 12
    Troy-Bilt Small Frame Tillers 6.12. Remove the depth regulator assembly and drag bar assembly. See Figure 6.12. Depth Regulator Assembly 6.14. Raise the front of the tiller up until the wheel assemblies are off the ground. See Figure 6.14. Hood Brackets Drag Bar Figure 6.12 NOTE: There is a cut
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 13
    engine bracket using needle nose pliers. See Figure 6.17. Troy-Bilt Small Frame Tillers 6.20. Remove both sets of hex screws securing the left and right engine 20 Engine Bracket 6. left engine bracket using Engine Bracket 6.22. Grasp the front of the unit and raise it up until the front support
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 14
    Troy-Bilt Small Frame Tillers 6.24. Pivot the upper handlebar assembly up until the pulley/belt guard is flat on the floor. See Figure 6.24. Pivoted Forward 6.28. Remove the forward return spring from the forward idler lever. See Figure 6.28. Forward Idle Lever Pulley/Belt Guard Figure 6.24 6.25.
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 15
    front support washer from the drive shaft assembly. See Figure 6.30. Transmission Pulley Key Belleville Troy-Bilt Small Frame Tillers 6.33. Raise the rear of right and left tine assemblies using a 9/16" socket and wrench. NOTE: Record the orientation of the tine assemblies for correct
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 16
    Troy-Bilt Small Frame Tillers 6.35. Remove both large E-Clips from the right and left sides of the wheel shaft using a large flat blade screwdriver. See Figure 6.35. 7.2. Remove all four hex flange screws securing the front transmission cover and gasket to the transmission housing assembly using a
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 17
    Troy-Bilt Small Frame Tillers 7.10. Remove the rear transmission cover gasket from the transmission using a scraper. See Figure 7.10. Cover Gasket Tine Worm Figure 7.8 7.9. Remove all four hex flange screws securing the rear transmission cover and gasket to the transmission housing assembly
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 18
    Troy-Bilt Small Frame Tillers 7.13. Remove the rear bearing cap from the transmission housing using a scraper. See Figure 7.13. Sealant 7.18. Measure the overall thickness of the rear bearing shims using a dial caliper. See Figure 7.18. Dial Caliper Transmission Housing Rear Bearing Cap Figure 7.
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 19
    Troy-Bilt Small Frame Tillers 7.23. Remove the front tapered roller bearing and support washer, and inspect them for wear or damage. 7.24. Inspect the rear tapered roller bearing assembly for damage or wear. See Figure 7.24. Race Rear Tapered Roller Bearing 7.27. Remove the front tapered roller
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 20
    Troy-Bilt Small Frame Tillers 7.31. Inspect the tiller shaft assembly for wear or damage inside the transmission case. See Figure 7.31. 7.33. Remove the left and right retaining rings securing the wheel shaft in position using medium retaining ring pliers. See Figure 7.33. Tiller Shaft Worm Gear
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 21
    the end work well for external shim removal. See Image Below Troy-Bilt Small Frame Tillers 7.38. Drive the wheel shaft to the right, forcing the . NOTE: The lubrication cut a ways on the bronze bushing face in during assembly. See Image Below. Shims Bronze Bushing Cut A Way Figure 7.35 7.36.
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 22
    Troy-Bilt Small Frame Tillers NOTE: The lubrication cut a ways on the bronze bushing face in during assembly. 7.44. Grasp the wheel shaft worm gear with one hand, and transmission housing. Figure 7.45 7.46. Inspect the wheel shaft assembly components for wear or damage. See Figure 7.46. Wheel Shaft
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 23
    7.47. Remove the left and right tine shaft oil seals from the transmission using an oil seal removal tool. See Figure 7.47. Oil Seal Troy-Bilt Small Frame Tillers 7.49. Remove the external shims from the right and left hand sides of the tine shaft using a small hook tool and a stick magnet. See
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 24
    using a punch and a hammer. 7.60. Inspect the tine shaft assembly components for wear or damage. See Figure 7.60. Tiller Shaft Worm Gear Woodruff Key Spacers Bronze Bushings External Shims Retaining Rings Oil Seals Figure 7.60 Figure 7.53 7.54. Slide the tiller shaft back into the housing until the
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 25
    . See Figure 7.61. Troy-Bilt Small Frame Tillers 8.3. Make certain all the drive shaft components are accounted for. See Figure 8.3. Transmission Housing Hex Flange Screws Snap Ring Race Tapered Roller Bearing Drive Shaft Assembly Figure 7.61 8. TRANSMISSION ASSEMBLY: 8.1. Thoroughly clean the
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 26
    Troy-Bilt Small Frame Tillers 8.5. Locate two sets of miscellaneous flat washers that would equal approximately 8.8. Slide Drive Shaft Assembly Into Position Miscellaneous Flat Washer Thicknesses Tapered Roller Bearing Support Washer Figure 8.8 8.9. Slide the support washer and front tapered
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 27
    tapered roller bearing race over the rear tapered roller bearing. See Figure 8.11. Troy-Bilt Small Frame Tillers 8.15. Pull the drive shaft assembly forward all the way, and set up a dial indicator at the front end. See Figure 8.15. Magnetic Base Rear Tapered Roller Bearing Race Figure 8.11 8.12
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 28
    Troy-Bilt Small Frame Tillers 8.18. Identify rear bearing cap shims that have a total stack tolerance thickness that is equal to the drive shaft assembly end play, minus .005" to .015" using a dial caliper. See Figure 8.18. Dial Caliper 8.22. Set the rear bearing cap gasket and shim aside. NOTE:
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 29
    Troy-Bilt Small Frame Tillers 8.31. If the drive shaft assembly end play is not within tolerance, .005" to .015", perform the above procedures again. 8.32. If the drive shaft assembly Shaft Assembly Snap Ring Support Washer 7" Long Rear Tapered Roller Bearing Race Rear Bearing Cap Shims Rear
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 30
    Troy-Bilt Small Frame Tillers 8.35. Drive the Hi-Pro key into the wheel shaft using a soft mallet. See Figure 8.35. 8.41. Drive the second wheel shaft bronze bushing into
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 31
    8.45. Push the wheel shaft in the opposite direction until it comes to a stop. See Figure 8.45. Troy-Bilt Small Frame Tillers 8.49. Measure the wheel shaft end play using the above procedures. See Figure 8.49. Push Wheel Shaft In Dial Indicator Figure 8.45 8.46. Record the
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 32
    Troy-Bilt Small Frame Tillers 8.58. Lubricate the insides of the wheel shaft oil seals with grease. See as a bushing installation tool. 8.67. Drive the Woodruff key into the tine shaft using a soft mallet. See Figure 8.67. Oil Seal Seal Protector Figure 8.61 8.62. Slide the seal protector over one
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 33
    shaft through the opposite bushing bore, through the tiller shaft worm gear and spacer, and into the installed tine shaft bronze bushing. See Figure 8.69. Spacer Spacer Bronze Bushing Troy-Bilt Small Frame Tillers 8.74. Drive the first tine shaft bronze bushing into the transmission housing until
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 34
    Troy-Bilt Small Frame Tillers 8.79. Split the recorded tine shaft end play, and install equal thickness external shims onto the wheel shaft. See Figure 8.79. External Shims 8.88. If the tine of the tine shaft oil seals with grease. See Figure 8.90. Apply Sealant to the Outside of the Tine Shaft Seal
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 35
    Troy-Bilt Small Frame Tillers 8.96. Drive the tine shaft seal into the transmission housing using a seal installation tool. See Figure 8.96. Transmission Housing Tine Shaft Seal Figure 8.96 NOTE: A 1" I.D. PVC pipe by 7" long works well as a wheel seal installation tool. 8.97. Repeat the tine
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 36
    Troy-Bilt Small Frame Tillers 8.117. Fill the transmission assembly with gear oil until it is half way up the worm gears. See Figure 8.117. Gear Oil Worm Gear 8.120. Secure the transmission covers to the transmission with the hex flange screws removed earlier using a 1/2" socket. 8.121. Perform the
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 37
    along with the Troy-Bilt Factory School. In addition, the Super Bronco uses the same transmission as the Tuffy Tiller. Therefore, the 13" Ag. Tires Engine and Protective Bumper • Protective bumper • Power forward and reverse • 16" tilling width • 10" tine diameter • Adjustable tilling depth
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 38
    Troy-Bilt Small Frame Tillers 1.4. Cut the cable tie securing the reverse clutch cable to the handlebar assembly using side cutters. See Figure 1.4. Reverse Clutch Cable Cable Tie Figure 1.4 NOTE: Make certain the reverse clutch cable is cable tied during assembly. 1.5. Remove the hex flange
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 39
    clutch cable using the T-knob. See Figure 2.1. Pull Out Troy-Bilt Small Frame Tillers 2.5. Adjust both hex jam nuts until the exposed portion of jam nuts securing the threaded portion of the reverse clutch cable to the belt cover bracket using two 1/2" wrenches. Figure 2.5 2.6. Secure the hex jam
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 40
    Troy-Bilt Small Frame Tillers 3.3. Remove the reverse clutch cable's Z-fitting from the reverse idler arm. See Figure 3.3. 3.4. Loosen the lock nut securing the reverse idler pulley belt guide in position using a 1/2" socket and wrench. See Figure 3.4. Reverse Clutch Cable Reverse Idler Arm Z-
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 41
    drive shaft assembly using a 1/2" socket. See Figure 3.8. Troy-Bilt Small Frame Tillers 4. REVERSE IDLER PULLEY ASSEMBLY: 4.1. The following picture shows the reverse idler assembly components in their correct orientation. See Figure 4.1. Hex Screw Belleville Washer Belt Guide Open Center Hex
  • Troy-Bilt Pro-Line CRT | Service Manual - Page 42
    Troy-Bilt Small Frame Tillers 6. TRANSMISSION OIL FILL PLUG: 6.1. The following picture shows the location of the oil fill plug for the transmission. See Figure 6.1. Transmission Oil Fill Figure 6.1 38
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Service Manual
MTD Products LLC - Product Training and Education Department
FORM NUMBER
769-01529
11/2004
Small Frame Troy-Bilt Tillers