Piaggio Fly 4T servicemanual - Scootergrisen
Piaggio Fly 4T servicemanual - Scootergrisen
Piaggio Fly 4T servicemanual - Scootergrisen
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Engine MSS <strong>Fly</strong> 50 <strong>4T</strong><br />
Inspecting the driven sliding half-pulley<br />
- Remove the 2 inner sealing rings and the two O-<br />
rings.<br />
- Measure the inside diameter of the mobile half-<br />
pulley bushing.<br />
Characteristic<br />
Mobile driven half-pulley/ Maximum diameter<br />
allowed<br />
Ø 34.08 mm<br />
- Check the belt contact surfaces.<br />
- Insert the new oil seal and O-rings on the mobile<br />
half-pulley.<br />
- Fitting the half-pulley on the bushing.<br />
Recommended products<br />
AGIP GREASE SM 2 Grease for the tone wheel<br />
revolving ring<br />
Soap-based lithium grease containing NLGI 2 Mo-<br />
lybdenum disulphide; ISO-L-XBCHB2, DIN<br />
KF2K-20<br />
- Make sure the pins and collar are not worn, reassemble the pins and collar.<br />
- Use a greaser with a curved spout to lubricate the driven pulley unit with around 6 g of grease. This<br />
operation must be done through one of the holes inside the bushing until grease comes out of the<br />
opposite hole. This procedure is necessary to prevent the presence of grease beyond the O-ring.<br />
Recommended products<br />
AGIP GREASE SM 2 Grease for the tone wheel revolving ring<br />
Soap-based lithium grease containing NLGI 2 Molybdenum disulphide; ISO-L-XBCHB2, DIN KF2K-20<br />
Refitting the driven half-pulley bearing<br />
- Fit a new ball bearing with the specific tool.<br />
- Fit the ball bearing retention snap ring.<br />
- Fit the new roller bearing with the wording visible<br />
from the outside.<br />
CAUTION<br />
PROPERLY SUPPORT THE HALF-PULLEY TO PREVENT<br />
DAMAGE TO THE THREADED END WHILE THE BEARINGS<br />
ARE BEING FITTED.<br />
Specific tooling<br />
020376Y Adaptor handle<br />
ENG - 68
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