Replace buckled plates with the new type.
An excess of oil in the front chaincase will adversely affect the dutch.
Friction plates so affected should be de-greased as they are usually
serviceable. Avoid the use of petrol or paraffin and use trichloroephylene.
Alternatively, copiouslv dust the inserts with Fullers Earth to absorb the
oil.
Check also the clutch spring cups, which may be fouling the holes in
the alloy pressure plate, preventing the spring from exerting maximum
pressure. Apply a little grease to the cups before refitting.
Clutch springs. If the clutch has been slipping for any length of time, the
heat generated is calculated to weaken the springs, which should be re-
newed. The correct free length is 1G". The five plate clutch spring free
length is 1 n". Discard springs which have collapsed to the extent of x".
Clutch spring adjusting screws. If there is a tendency for the springs
adjusting screws to become unscrewed, take out the spring, lift up the
end of the spring with a pen-knife and file the end of the spring to give
a square abutment of 8" or get rid of the feathered end. The abutment
will then come up against the indentation at the back of the adjuster and
prevent it unscrewing. The correct location of the adjusting screws is with
the head of the spring stud just flush with the face of the adjusting screw.
If the machine is a combination and heavy loads are carried, and the
early type clutch is used, convert the clutch to the bonded type as already
described.
Clutch drag. This is due to torque on the gear box mainshaft and creates
noisy gear engagement. The cause is due to the clutch plates not separa-
ting when the clutch is operated. The fault may be due to:
(1) Excessive play in the operating mechanism (see clutch slip).
(2) Uneven adjustment of the clutch springs.
(3) The steel plates are buckled.
(4) The clutch plates are gummy.
In the case of (2), take off the outer portion of chaincase, operate the
clutch lever and note if the outside plate is withdrawn parallel with the
plate behind it. If the gap between the two plates is uneven, manipulate
the spring adjuster until the gap is equal and evenly between the two
plates, with a preference, for screwing in the adjuster to balance.
In the event of (4), treat the clutch plates as recommended for clutch
slip to get rid of the gumminess.
Needless to say, continual use with clutch drag can cause damage to
gear box pinions.
Clutch nut works loose. If the mainshaft nut securing the clutch to the
mainshaft works loose, this is due to damage to the splines in clutch
centre for the shock absorber 040354. To remedy, replace the centre and
avoid over-tightening the mainshaft nut.
To remove a clutch control cable. Remove the oil filler cap from the
kickstarter case cover.
Screw right home the clutch cable adjuster that is located in the top
of the kickstarter case cover.
Disengage, from the operating lever, the clutch cable inner wire by
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