Troubleshooting Drive Belt - Arctic Cat 660 cc Service Manual

Problem: Drive Clutch Engagement (Before Specified RPM)
Condition
1. Drive clutch spring weak — bent
2. Cam arms incorrect — worn
Problem: Drive Clutch Engagement (After Specified RPM)
Condition
1. Drive clutch spring incorrect
2. Spider buttons worn
Problem: Drive Clutch Sticks
Condition
1. Drive clutch components dirty
2. Movable sheave bent — binding
3. Spider buttons worn
Problem: Drive Clutch Jerks—Shifts Erratically
Condition
1. Drive clutch dirty
2. Rollers worn
3. Cam arms rough
4. Spider buttons worn
5. Sheaves dirty
Troubleshooting
Drive Belt
Problem: Drive Belt Glazed
Condition
1. Drive belt does not meet measurement
specifications
2. Drive clutch spring tension inadequate
3. Drive clutch components dirty — damaged
4. Offset — parallelism — center-to-center
distance adjusted incorrectly
Problem: Drive Belt Lugs Torn Off—Frayed—Worn in One Spot
Condition
1. Drive belt does not meet measurement
specifications
2. Offset — parallelism — center-to-center
distance adjusted incorrectly
3. Drive clutch engagement — idle RPM too high
4. Drive clutch components dirty — damaged
5. Driven pulley/shaft rotation impaired
Back
8-72
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Remedy
1. Replace spring
2. Replace cam arms
Remedy
1. Replace spring
2. Replace buttons
Remedy
1. Clean drive clutch components
2. Clean — replace movable sheave
3. Replace buttons
Remedy
1. Clean — drive clutch components
2. Replace rollers
3. Polish — replace cam arms
4. Replace buttons
5. Clean sheaves
Remedy
1. Replace drive belt
2. Replace drive clutch spring
3. Clean — replace drive clutch
4. Adjust offset — parallelism — center-to-center
distance
Remedy
1. Replace drive belt
2. Adjust offset — parallelism — center-to-center
distance
3. Service drive clutch — reduce idle RPM
4. Clean — replace drive clutch components
5. Service driven pulley/shaft — chain-case
components
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