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If the engine R/MIN doesn’t coincide with the specified r/min range, then
disassemble the clutch.
Clutch shoe---inspect the shoes visually for chips, cracking, uneven wear and burning, and check
the thickness of the shoes with vernier calipers. If the thickness is less than the following service
limit, replace them as a set.
Clutch springs -----visually inspect the clutch springs for strectched coils or broken coils.
Service limit:᧶2.0mm(0.08in)
CAUTION᧶clutch shoes or springs must
be changed as a set and never individually.
Clutch wheelಧinspect visually the condition of the inner
clutch wheel surface for scrolling, cracks, or uneven wear.
Measure inside diameter of the clutch wheel with inside
calipers. Measure the diameter at several points to check for
an out-of-round condition as well as wear.
Service limit:110.50mm(4.350in)
DRIVE BELT
Remove the drive belt and check for cracks, wear and
separation. Measure the drive belt width with a vernier
calipers. Replace it if the belt width is less than the service
limit or and defect has been found.
Service limit᧶16.0mm(0.630in)
CAUTION᧷Always keep the drive belt
away from any geasy matter.
Drive face
Inspect the belt contact surface of the dirve faces for wear,
scratches or any abnormality. If there is something unusual,
replace the drive face with a new one.
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