Inspecting the driven fixed half-pulley
- Check that there are no signs of wear on the work
surface of the belt. If there are, replace the half-
pulley..
- Make sure the bearings do not show signs of un-
usual wear.
- Measure the outside diameter of the pulley bush-
ing.
Characteristic
Stationary driven half-pulley/Standard diame-
ter
Ø 33.965-33.985 mm
Stationary driven half-pulley / Minimum diam-
eter admitted after use
Ø 33.96 mm
Inspecting the driven sliding half-pulley
- Remove the 2 inner sealing rings and the two O-
rings.
- Measure the inside diameter of the mobile half-
pulley bushing.
Characteristic
Mobile driven half-pulley/ Maximum diameter
admissible
Ø 34.08 mm
- Check the belt contact surfaces.
- Insert the new oil seal and O-rings on the mobile
half-pulley.
- Fitting the half-pulley on the bushing.
Recommended products
Molybdenum disulphide grease
Lithium
grease with molybdenum disulphide
Grey black grease.
- Make sure the pins and collar are not worn, refit the pins and the collar.
- Use a greaser with a curved spout to lubricate the driven pulley unit with around 6 g 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
NRG 50
Engine
ENG - 105
Summary of Contents for NRG 50
Page 1: ...MANUALE STAZIONE DI SERVIZIO 1Q000696 NRG 50...
Page 4: ......
Page 6: ...INDEX OF TOPICS PRE DELIVERY PRE DE...
Page 10: ...INDEX OF TOPICS TECHNICAL DATA DT...
Page 19: ...INDEX OF TOPICS TOOLING TOOL...
Page 30: ...INDEX OF TOPICS MAINTENANCE MAIN...
Page 43: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL...
Page 45: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS...
Page 75: ...C42 Rear left turn indicator Ground NRG 50 Electrical system ELE SYS 75...
Page 76: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE...
Page 94: ...the upper side fairings the complete silencer Engine from vehicle NRG 50 ENG VE 94...
Page 95: ...INDEX OF TOPICS ENGINE ENG...
Page 156: ...INDEX OF TOPICS SUSPENSIONS SUSP...
Page 191: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS...
Page 215: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS...
Page 225: ...INDEX OF TOPICS CHASSIS CHAS...