Derbi boulevard 125 4t Workshop Manual page 100

Engine
Inspecting the hub cover
- Check that the fitting surface is not dented or distorted. - Check the capacity of the bearings and the
brake camshaft. - If faults are found, replace the hub cover.
Refitting the driven pulley shaft bearing
- Heat up the parts using the specific heat gun
Specific tooling
020150Y Air heater support
020151Y Air heater
- Reassemble the driven pulley axle bearing positioning it with ball bearing in view from the inside of
the hub cover using the adequate tools
Specific tooling
020376Y Adaptor handle
- Refit the Seeger ring with the opening facing the
bearing as shown in the figure and fit a new oil
guard flush with the crankcase.
Refitting the wheel axle bearing
- Heat up the parts using the specific heat gun
Specific tooling
020151Y Air heater
020150Y Air heater support
-The wheel axle bearing on the cover, should be assembled with the specific tools
Specific tooling
020364Y 25-mm guide
020360Y Adaptor 52 x 55 mm
020376Y Adaptor handle
ENG - 100