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ROYAL ENFIELD 350cc and 500cc O.H.V. WORKSHOP MANUAL
removal of the main tube bush the bottom tube
bush, oil seal housing and oil seal can be
removed.In case of difficulty in removing the main
tube bush it is possible to withdraw the oil seal
housingafter loosening the crown clip bolt 39038,
removing the plug screw 38968 and unscrewing
the main tube from the fork-head by means of a
hexagon bar .500 in. across flats (Unbrako wrench
W. 11) or the special tool shown in Fig. 2.
4. Spring
Solo and Sidecar springs are available. The free
length of each is 20.1/2 ins. The spring should be
replaced if it has closed by more than 1 inch.
5. Reassembly of Parts
When refitting the oil seal, or fitting a new one,
great care must be exercised not to damage the
synthetic rubber lip which forms the actual seal. If
the seal has been removed from the upper end of
the main tube and is refitted from this end a
special nose piece (Fig. 3) must be fitted over the
end of the tube to prevent the thread from
damaging the oil seal.
The spring stud is a tight fit in the hole at the
lower end of the bottom tube. Once the stud has
been entered in the hole push the bottom tube
SHOWING THE POSITIONS OF THE CLAMP BOLTS
SECURING THE STEERING STEM AND FORK TUBES
Fig. 4
up sharply against the spring until two or three
threads on the stud project beneath the end of
the bottom tube. Now fit the nut and washer and
pull the stud into position by tightening the nut.
If necessary fit the nut first without the washer
until sufficient thread is projecting to enable the
washer to be fitted.
6. Steering Head Races
The steering head bearing consists of two
deep groove thrust races each containing
nineteen 1/4 in. diameter balls. The bearing is
adjusted by tightening the steering stem locknut
after loosening the ball head clip screw and both
the fork crown clamp bolts. The head should be
adjusted so that, when the front wheel is lifted
clear of the ground, a light tap on the handlebars
will cause the steering to swing to full lock in
either direction, while at the same time there
should be only the slightest trace of play in the
bearings.
When
testing
movement the steering damper, if fitted, should
be disconnected by unscrewing the anchor plate
pin. Do not forget to tighten the ball head clip
screw and fork crown clamp bolts. Before
tightening the latter make sure that the cover
tubes are located centrally round the main tubes
so that the bottom tube does not rub inside the
cover tube. A pair of split bushes (Fig. 5) is
useful to ensure centralisation of the cover tubes.
7. Removal of Complete Fork
The fork complete with front wheel and
mudguard can be removed from the machine if
necessary by adopting the following procedure.
for
freedom
of
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