PIAGGIO 500 cc, Service Manual

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Automatic transmission
05_007
05_009
- Turn the pulley central nut aligning its holes horizon-
tally to be able to install the specific tool.
N.B.: Make sure that the lock wrench fits easily in the
pulley and engine crankcase.
Specific tool:
Driving pulley lock wrench
020474Y
- Fully insert the stop ring from the rear side.
- Fit the tool by drawing the nuts near manually and
making sure it is on a flat surface.
- Tighten the driving pulley fixing nut to the prescribed
torque.
- Remove the specific tool.
Tightening torque:
Driving pulley nut: 157 - 172 N·m
05_010
Belt antiflapping roller assembly
- Fit the belt antiflapping roller with the belt contain-
ment edge to the engine crankcase side.
- Tighten the central screw to the prescribed torque.
N.B.: Turn the driven pulley and/or the driving pulley
until the belt is properly tensioned.
Tightening torque:
Antiflapping roller screw: 16.7 - 19.6 N·m
05_008
Transmission cover
N.B.: Check the transmission air filter metal net condi-
tion. If damaged, replace it. If necessary, clean it by
blowing compressed air.
- Fit the transmission cover.
- Fully tighten the 7 fixing screws to the prescribed
torque.
Tightening torque:
Transmission cover screws: 10.8 - 12.8 N·m