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Problem: Maximum
Drive
Condition
Remedy
Clutch RPM
A. Too High
1.
Drive clutch components dirty
1. Clean drive clutch components
)
B. Too Low
1. Spring weak
1.
Replace spring
2. Rollers
-
ramps worn
-
2. Replace rollers
-
ramps
damaged
Problem: Midrange
Condition
Remedy
Shift-Up
A. Too Quickly
1. Drive clutch spring weak
1. Replace drive clutch spring
(Lowers RPM)
2.
Driven pull ey spring weak
2. Replace driven
pu
lley
spring
3.
Spring preload tension
3.
Increase spring
p
reload
tension
inadequate
4. Center-to-center
distance
4. Adjust center-to-
c ente
r
too close
distance
5. Driven pull ey bushing (bearing)
5. Replace bearing
-
movabl
e
worn
-
damaged
sheave
B. Too Slowly
1. Drive clutch components
1.
Clean drive clutch component
s
(Raises
RPM)
dirty
2. Driven pulley components dirty
2. Clean driven pulley
components
3.
Spring preload tension
3. Decrease
sprin
g preload
excessive
tension
'
4. Shoe-ramp slides worn
4. Replace shoe-ramp slides
excessively
5. Driven pulley bushing (bearing)
5. Replace
bearing
-
movable
worn
-
damaged
sheave
Problem: Excessive Belt
Condition
Remedy
Deposits
1.
Offset adjusted
incorrect ly
1.
Adjust offset
2. Drive clutch/driven pu
ll
ey
2. Repair
-
replace
-
clean
sheaves rough
-
damaged
-
drive
clutch/driven pu lley
dirty
sheaves
3. Driven pulley movab le sheave
3.
Service
driven
pulley
travel
impaired
4. Driven
pulley
bushing
(bearing)
4.
Clean
-
rep lace bushing
worn
-
dirty
movable
sheave
Problem: Excessive Belt
Condition
Remedy
Drag
-
Impaired
Drive Clutch
Disengagement
1.
Drive clutch components
-
1.
Clean
-
replace drive clutch
dirty-
damaged
components
2. Drive belt does not
meet
2.
Replace
drive
b
e
lt
measurement specifications
..
Problem: Engine RPM
Condition
Remedy
.
Suddenly
"
Increases
-
Drive
Clutch Vibrates
1. Spider-arm
pin
bent
-
damaged
1.
Replace sp ider assemb
ly
2.
Spider arm damaged
-
broken
2. Replace spider assembly
3.
Weight
bolt broken
3.
Rep lace bolt
4.
Drive clutch out
of
balance
4.
Align
-
replace
components
-
clutch
180
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