Shibaura ST318, Workshop Manual

Page: 114 / 247

113
2. TROUBLESHOOTING OF CLUTCH
Condition Cause Remedy
1. Slippery clutch
(1) Does not speed up.
(2) Does not accelerate rapidly.
(3) Smell of burning facing. (1) No play in the clutch pedal.
(2) Oil or grease sticked to the facing.
(3)-1 Broken wire ring.
(3)-2 Unevenly worn out and seized
pressure plate or flywheel.
(1) Adjust the free-play to 20 – 30
mm on the pedal tread.
(2) Remove and clean or replace.
Correct so that no oil leaks also.
(3)-1 Replace the pressure plate
ass’y.
(3)-2 Correct or replace.
2. Clutch is not engaged smoothly.
(1) Sound of transmission gears.
(2) Vehicle body moves even though
the clutch is depressed.
(1) Excessive play of clutch pedal.
(2)-1 Excessive wear of various parts
of clutch.
(2)-2 Deflection of disk ass’y.
(2)-3 Play due to wear of pilot
bearing.
(2)-4 Uneven wear of disk hub and
drive shaft.
(1) Adjust the free-play.
(2)-1 Dissassembly, check ,and
correct or replace if
abnormality is noticed.
(2)-2 Replace the disk ass’y.
(2)-3 Replace the pilot bearing.
(2)-4 Replace the disk ass’y and
drive shaft.
3. Abnormal sound and vibration of clutch
(1) Abnormal sound and vibration of
clutch
(1) Fatigued damper spring.
(2) Loosened rivet of clutch facing.
(3) Wear or damage of release
bearing.
(4) Wear or damage of pilot bearing.
(5) Loosened bolt tightening each
part of clutch.
(1) Check and replace (disk ass’y).
(2) Check and replace (disk ass’y).
(3) Replace the release bearing.
(4) Replace the pilot bearing.
(5) Retighten the bolt.