PIAGGIO NRG 50, User Manual

Page: 106 / 275

Molybdenum disulphide grease Lithium grease with molybdenum disulphide
Grey black grease.
Refitting the driven half-pulley bearing
- Fit a new ball bearing with the specific tool.
- Fit the ball bearing retention snap ring.
- Fit the new roller bearing with the wording visible
from the outside.
CAUTION
PROPERLY SUPPORT THE HALF-PULLEY TO PREVENT
DAMAGE TO THE THREADED END WHILE THE BEARINGS
ARE BEING FITTED.
Specific tooling
020376Y Sleeve for adaptors
020456Y Ø 24 mm adaptor
020362Y 12 mm guide
020171Y Punch for Ø 17 mm roller bearing
Inspecting the clutch spring
- Check that the contrast spring of the driven pulley
does not show signs of deformation
- Measure the free length of the spring
Characteristic
Standard length
118 mm
Refitting the clutch
- Preassemble the driven pulley group with spring,
sheath and clutch.
- Position the spring with the sheath
- Insert the components in the tool and preload the
spring being careful not to damage the plastic
sheath and the end of the threaded shank.
Engine
NRG 50
ENG - 106