19 / 44
Remove the cover plate, and the clutch
shock absorber rubbers. (Fig. 12)
A large “ C ” spanner is needed to remove
the rubbers. This is placed over the body
and engaged in the splines, and the large
rubbers compressed while the small ones are
removed.
The handle of the spanner should be of
such a length that the load can be taken by
the users thigh, allowing both hands to be
free to remove the rubbers.
A substitute for a “ C ” spanner can be
made by fixing a handle to an old plain
steel clutch plate.
Compress large rubbers and remove the
small.
A small, sharp-pointed tool is necessary lo
remove the rubbers, as after use they adhere
to the body.
Large rubbers are easily removed, after
the small have been withdrawn.
Remove body from axle and replace in the
reverse position.
Remove the three stud nuts on the back
cover plate.
Back plate, roller race, back cover and
body can be separated.
44. EXAMINATION OF CLUTCH
PARTS.
Examine clutch inserts. They should be
“ proud ” of the plate.
Fitting of separate inserts to a plate is not
advisable, as the new insert would be
“ proud ” of the remainder and take all the
drive on the plate in which it had been fitted.
It is advisable, if possible, to replace
plates with either new or reconditioned
ones.
If all the new inserts are fitted to a plate,
ensure that the inserts are level and flat and
all contact the steel plates, taking their share
of the drive.
Examine the drive on the plates for wear.
The plates with the inserts, drive on the
outside diameter, and the plain steel, on the
inside.
The splines on the body and the plain steel
plates driven by the body rarely show any
sign of wear.
The tongues on the plates with inserts,
driving the sprocket, may show signs of wear
and they may have “ cut ” in to the driven
part of the sprocket.
This wear obstructs the free movement of
the plates when the clutch is operated.
This can be rectified by filing or grinding
the tongues on the plates square. Also the
edge of the driven part of the sprocket.
The only effect this will have on the clutch
is a slight amount of "back-lash” when the
clutch is engaged or disengaged.
Examine plain steel plates for any rough
ness. The back plate sometimes develops this
fault.
*
Examine the roller race, rollers and the -
cage.