Troubleshooting Drive Clutch/Driven Clutch - Arctic Cat ZR4000 Service Manual

Troubleshooting Drive
Clutch/Driven Clutch
Problem: Midrange Shift-Up (Too Quickly - Lowers RPM)
Condition
1. Drive clutch spring weak
2. Driven clutch spring weak
3. Driven clutch spring preload tension inadequate
4. Center-to-center distance too close
5. Driven clutch bearing worn — damaged
Problem: Midrange Shift-Up (Too Slowly - Raises RPM)
Condition
1. Drive clutch components dirty
2. Driven clutch components dirty
3. Driven clutch spring preload tension excessive
4. Driven clutch bearing worn — dirty
Problem: Excessive Belt Deposits
Condition
1. Offset/parallelism incorrect
2. Drive clutch/driven clutch sheaves rough — damaged —
dirty
3. Driven clutch movable sheave travel impaired
4. Driven clutch bearing worn — dirty
Problem: Excessive Belt Drag—Impaired Drive Clutch Disengagement
Condition
1. Drive clutch components dirty — damaged
2. Drive belt does not meet measurement specifications
Problem: Engine RPM Suddenly Increases—Drive Clutch Vibrates
Condition
1. Cam arm pin bent — damaged
2. Cam arm damaged — broken
3. Drive clutch out of balance
Problem: Driven Clutch Vibrates
Condition
1. Driven clutch out of balance
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
186
Remedy
1. Replace drive clutch spring
2. Replace driven clutch spring
3. Replace driven clutch spring
4. Adjust center-to-center distance
5. Replace bearing — movable sheave
Remedy
1. Clean drive clutch components
2. Clean driven clutch components
3. Replace driven clutch spring
4. Clean — replace bearing — movable sheave
Remedy
1. Adjust offset/parallelism
2. Repair — replace — clean drive clutch/driven clutch
3. Service driven clutch
4. Clean — replace bearing — movable sheave
Remedy
1. Clean — replace drive clutch components
2. Replace drive belt
Remedy
1. Replace pin
2. Replace cam arm
3. Align — replace components — drive clutch — drive belt
Remedy
1. Service — replace driven clutch
Remedy
1. Replace spring
2. Replace cam arms
Remedy
1. Replace spring
2. Replace clutch
Remedy
1. Clean drive clutch components
2. Clean — replace movable sheave
3. Replace clutch
Remedy
1. Clean — drive clutch components
2. Replace clutch
3. Polish — replace cam arms
4. Replace clutch
5. Clean sheaves