Derbi Rambla 250 Manual page 86

Engine
- Remove the roller bearing using the specific
punch.
Specific tooling
020376Y Adapter handle
020456Y Ø 24 mm punch
020363Y Crankshaft oil seal punch D 20 mm
Inspecting the driven fixed half-pulley
•
Measure the outside diameter of the
pulley bushing.
•
Check the surface in contact with the
belt to make sure there are no signs of
abnormal wear.
•
Check the riveted joints work properly.
•
Check the evenness of the surface in
contact with the belt.
Characteristic
Half-pulley minimum diameter
Minimum diameter allowed: Ø 40.96 mm
Half-pulley standard diameter
Standard diameter: Ø 40.985 mm
wear limit
0.3 mm
ENG - 86