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Problem: Drive Clutch Engagement (Before Specified RPM) Condition Remedy 1. Drive clutch spring weak—bent 1. Replace spring 2. Cam arms incorrect—worn 2. Replace cam arms Problem: Drive Clutch Engagement (After Specified RPM) Condition Remedy 1. Drive clutch spring incorrect 1. Replace spring 2. Spider buttons worn 2. Replace buttons Problem: Drive Clutch Sticks Condition Remedy 1. Drive clutch components dirty 1. Clean drive clutch components 2. Movable sheave bent—binding 2. Clean—replace movable sheave 3. Spider buttons worn 3. Replace buttons Problem: Drive Clutch Jerks—Shifts Erratically Condition Remedy 1. Drive clutch dirty 1. Clean—drive clutch components 2. Rollers worn 2. Replace rollers 3. Cam arms rough 3. Polish—replace cam arms 4. Spider buttons worn 4. Replace buttons 5. Sheaves dirty 5. Clean sheaves Troubleshooting Drive Belt Problem: Drive Belt Glazed Condition Remedy 1. Drive belt does not meet measurement specifications 1. Replace drive belt 2. Drive clutch spring tension inadequate 2. Replace drive clutch spring 3. Drive clutch components dirty—damaged 3. Clean—replace drive clutch 4. Offset—parallelism—center-to-center distance adjusted incorrectly 4. Adjust offset—parallelism—center-to-center distance Problem: Drive Belt Lugs Torn Off—Frayed—Worn in One Spot Condition Remedy 1. Drive belt does not meet measurement specifications 1. Replace drive belt 2. Offset—parallelism—center-to-center distance adjusted incorrectly 2. Adjust offset—parallelism—center-to-center distance 3. Drive clutch engagement—idle RPM too high 3. Service drive clutch—reduce idle RPM 4. Drive clutch components dirty—damaged 4. Clean—replace drive clutch components 5. Driven pulley/shaft rotation impaired 5. Service driven pulley/shaft—chain-case components 8-82 |