Yamaha MM700A, Manual, Page: 203 / 282

DRIVE SYSTEM I97
3. Check the sheave drive belt surfaces for rubber or
buildup. For proper operation,
sheave surfaces must
be clean. Remove or rust debris with a coarse grade
and finish with 400 sandpaper.
Check the splines in the fixed sheave half for cracks or
damage.
5. The ramp shoes (Figure 45) on the fixed sheave half
provide a sliding surface between the fixed sheave half
and spring scat. Because the pads arc rubbing against
minum, wear is normally minimal,
if any ramp
pad is gouged or install new pads. Replace the
pads if any pad is worn to a thickness (Figure less
than mm (0.04 in.
Inspect the secondary spring for or dis-
tortion. Replace the spring if the length is than 75
(2.95 in.). Sheave spring specifications are listed in
12 and
7. Inspect the bushings in sliding sheave half and
spring seat. Replace the bushing if excessively worn
damaged.
the stopper. Replace the stopper if excessively
worn or damaged.
9. Inspect the studs in the sliding sheave half (Figure 47).
Replace the studs if damaged.