5
CLUTCH
4. SPECIFICATIONS
6. INSPECTION OF COMPONENTS
i.
Check clutch disc hub splines for damage and
wear. The clutch disc should slide easily on gear
box drive shaft but should not have excessive play
and wobble.
ii.
Check torsion damper mechanism springs for
distortion, damage etc. For this purpose, hold
drive shaft in vice. Insert clutch disc and slide it
as far back as possible. Rotate disc by hand.
Rattling noise and excessive play indicates
damaged torsional damping mechanism and
such disc must be replaced.
iii.
Check disc facing for wear, cracks, contact
pattern, burning marks and oil contamination.
Facings with any of the above defects or worn
out beyond permissible limits must be replaced.
Note
It is recommended to replace a NEW genuine clutch
disc for any above mentioned defects. We do not
recommend removal and replacing of clutch facings.
We do not recommend overhauling of the clutch
pressure plate assembly. However, before refitment,
the assembly should be checked for serviceability and
should conform to the data of clutch pressure plate
assembly.Please refer to specifications given.
Caution
Prior to installing a new clutch disc, check for face
run-out and straighten, if required.
Ensure that the clutch facing material is not
contaminated with oil or grease as this shall result in
clutch slipping.
7. INSTALLATION OF CLUTCH ON VEHICLE
Proceed in reverse order of removal of clutch.
However, following care must be taken during
installation :
l
Clean friction face of flywheel and check for
cracks, scoring, burn marks or unevenness. If
necessary, machine flywheel friction face just to
clear the defect.
l
Check spigot bearing in flywheel (pilot bearing)
for free rotation. Replace sticky/damaged bearing.
Fit new bearing after filling with bearing grease
and press in the retaining cover. Lightly apply
grease (3% MoS2) on the disc splines and pilot
bearing I.D. Install disc and pressure plate
assembly (Before installation ensure that the disc
face stamped with 'flywheel side' mates the
flywheel face). Press aligning arbor through the
pressure plate assembly and clutch disc and
centralize clutch disc on flywheel by locating the
front end of the arbor in flywheel spigot bearing
(pilot bearing).
l
Locate pressure plate assy. on flywheel dowels,
align its mounting holes with tapped holes in the
flywheel. Screw in clutch mounting screws with
spring washers. Aligning arbor still in position,
tighten mounting screws evenly and equally
(alternately and cross wise) in small steps. Tighten
these screws in the same sequence to 3.2 mkg
torque.
Note
Do not mix clutch mounting bolts with other
fasteners. Do not use longer or shorter screws. Longer
screws may not tighten the clutch at all. Shorter
screws will not provide enough threads to achieve
desired tightening.
l
While tightening the clutch mounting screws
check aligning arbor for continuous free sliding
to ensure concentric installation of clutch disc
which will avoid trouble when installing the gear
box.
l
Fill pocket of release sleeve with (3% MoS2)
grease.
l
Lightly smear the fork, spring plate and ball pin
bearing area and cover the tube surface with
(3% MoS2) grease.
l
Lightly smear the slave cylinder fork bearing
surface with (3% MoS2) grease.
8. CLUTCH ACTUATION MECHANISM REMOVAL
l
Connect bleeding tube, to bleeding screw on
slave cylinder.
l
Loosen bleeding screw on slave cylinder by 1/2
to 3/4 turn. Operate clutch pedal number of times
and pump out fluid into a clean container.
l
Remove bleeding tube
l
Disconnect pipe connections from master
cylinder.
l
Disconnect pipe connection from slave cylinder.
l
Remove split pin and clevis pin, locking master
cylinder push rod fork end with clutch pedal.
l
Unscrew and remove two master cylinder
mounting screws. Pull out master cylinder with
push rod.
l
Unscrew and remove slave cylinder mounting
screws and pull out slave cylinder.




