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Maintenance:
General Information
• Drive face, clutch outer, and driven pulley can be serviced on the MTV.
• Drive belt and drive pulley must be free of grease.
Specifications:
Item Standard Limit
Driving belt width 28.500 mm 27.000 mm
OD of movable drive face boss 26.946-26.980 mm 26.926 mm
ID of movable drive face 27.000-27.040 mm 27.060 mm
OD of weight roller 25.800-26.000 mm 25.000 mm
ID of clutch outer 140.000-140.200 mm 140.500 mm
Free length of driven pulley spring 230.000 mm 225.000 mm
OD of driven pulley boss 44.965-44.985 mm 40.935 mm
ID of driven face 45.000-45.035 mm 45.600 mm
Weight of weight roller 13.300-13.700 g 12.800 g
Torque value Special Service Tools
• Drive face nut: 55 ft. lbs • Clutch spring compressor:
• Clutch outer nut: 55 ft. lbs • Inner bearing puller: TGB Clutch
• Drive plate nut: 55 ft. lbs • Nut wrench 27 x 15 mm: TGB Universal
• Holder: TGB Bearing
• Driver: TGB Trouble
Troubleshooting:
Engine can be started but MTV cannot be moved:
1. Worn drive Belt
2. Worn drive face
3. Worn or damaged clutch weight
4. Broken driven pulley
Shudder when driving:
1. Broken clutch weight
2. Worn clutch weight
Insufficient power or poor high speed performance:
1. Worn drive belt
2. Insufficient spring force on driven pulley
3. Worn roller
4. Driven pulley surface is rough
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