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REMOVAL (SECONDARY CLUTCH)
Remove the drive-belt of the vehicle.
Remove assembly screw No. 19, lock washer No. 18, washer
No. 17 and the No. 16 shims, then remove the secondary clutch
from the jackshaft.
Jackshaft
If the jackshaft must be removed, see the section dealing with
the Secondary Transmission System.
DISASSEMBLY
Using the spring compression tool (P/N 529 0273 00) remove
circlip No. 9 and washer No. 15 to remove the helix and the 2
sheaves.
1- Insert this pin in the groove of the key.
The secondary clutch helix is equipped with a spring. For
safety use the tool indicated above when dismantling.
CLEANING
Large bushing and small bushing
During the break-in period (about 10 hours of use) the teflon of
the bushing moves toward the surface of the helix or of the
shaft. The result is a light, constant friction of teflon against
Teflon, so it is normal to note a coating of grey teflon on the cam
or on the shaft. Do not remove this coating; it is not dust.
When it is necessary to remove a coating of dust from the cam
or from the shaft, use a dry cloth to avoid removing the teflon
that has been deposited there.
Cleaning the sheaves
Use Loctite Safety Solvent (P/N 413 7082 00).
INSPECTION
Bushings
Make sure there are no cracks or scratches on the bushings and
that they can move freely when installed on the fixed sheave.
Using a bore dial gauge, measure the diameter of the bushing.
These measures must be taken at least 5mm (1/4 in) from the
edge of the bushing.
u u WARNING
PRIMARY TRANSMISSION SYSTEM 8-7
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