Removing The Clutch - Derbi GP1 125-250 c.c. Workshop Manual

Checking the bell working surface eccentricity
- Install the bell on a driven pulley shaft using 2 bearings
(inside diameter 15 and 17 mm).
- Lock using the original spacer and nut.
- Place the bell/shaft assembly on the support to check the
driving shaft alignment.
- Using a feeler pin comparator and the magnetic base,
measure the bell eccentricity.
- Repeat the measure in 3 positions (Central, internal, ex-
ternal).
- In case of anomalies, replace the bell.
Specific tooling
020074Y Crankshaft aligning tool
020335Y Magnetic stand and comparator
Technical characteristics
Checking the clutch bell housing:
Eccentricity limit.
Acceptable eccentricity limit: 0.15 mm
R R
EMOVING THE CLUTCH EMOVING THE CLUTCH
Clutch removal (125cc H20)
- Prepare the specific driven pulley spring compressor tool
with the medium length pins in position «F» tightened on the
inside of the tool.
- Introduce the adapter ring n° 8 into the pins.
- Install the driven pulley assembly on the tool and the nail
heads into the adapters.
74