PIAGGIO NRG POWER PUREJET, Workshop Manual, Page: 71 / 248

- Use a greaser with a curved spout to lubricate the driven pulley unit with around 6 gr. of grease. This
operation must be done through one of the holes inside the bushing until grease comes out of the
opposite hole. This procedure is necessary to prevent the presence of grease beyond the O-ring.
Recommended products
AGIP GREASE SM 2 Grease for the tone wheel revolving ring
Soap-based lithium grease containing NLGI 2 Molybdenum disulphide; ISO-L-XBCHB2, DIN KF2K-20
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 Adaptor handle
020456Y Ø 24 mm adaptor
020362Y 12 mm guide
020171Y Punch for Ø 17 mm roller case
Refitting the driven pulley
• Check the surfaces contacting with the belt.
• Insert the new oil seals and the O-rings on the
mobile half-pulley.
• Fit the half-pulley on the bushing.
CAUTION
WHILE FITTING THE MOBILE DRIVEN HALF-
PULLEY, TAKE CARE NOT TO DAMAGE THE
OIL SEALS.
• Check that pins and collar are not worn, refit pins and collar.
• Use a bent tip oiler to lubricate the pulley unit with approx. 6 gr grease. This operation must be per-
formed through one of the holes into the bushing until the grease starts leaking from the opposite hole.
This procedure is necessary to prevent the presence of grease beyond the O-ring.
Recommended products
AGIP GREASE SM 2 Grease for odometer transmission gear case
Lithium grease with NLGI 2 Molybdenum disulphide; ISO-L-XBCHB2, DIN KF2K-20
NRG Power Purejet
Engine
ENG - 7