11
CLUTCH
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 dampingmechanismand 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.Wedo 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 given on page 3.
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 ONVEHICLE
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 crankshaft 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. Install disc and
pressure plate assembly (The shorter length of
the splined hub on the clutch disc must face
towards the flywheel). 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.
l
Locate pressure plate housing on flywheel dowels
in original position with aid of marks and 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 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
Lubricate the fork, spring plate and ball pin bearing
area with (3% MoS2) grease.
l
Lubricate slave cylinder fork bearing surface with
(3%MoS2) grease.




