- First install the lock ring of the special tool onto
the pulley so that the splines are completely en-
gaged.
- Then, insert the tool so as to insert the stud bolts
on the ring into the holes obtained onto the tool
itself.
- Tighten the two tool fastening nuts, also by hand.
- Loosen the central nut.
- Remove the spring washer and the flat washer.
- Remove the fixed driving half-pulley.
- Remove the bushing connection washer.
- Move the belt downwards.
- Suitable support the roller contrast and extract
the mobile driving half-pulley with the relevant
bushing and the rear washer, being careful not to
make the rollers come out.
Inspecting the rollers case
- Check that the inside bushings shown in the figure exhibit no signs of abnormal wear and measure
the inside diameter.
CAUTION
DO NOT LUBRICATE OR CLEAN THE BUSHINGS
Characteristic
Maximum admissible diameter:
30.12 mm
Standard diameter:
30.021 mm
X9 Evolution 500 Engine
ENG - 101
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