Removal Of Brake Shoes For Replacement - Royal Enfield G Workshop Maintenance Manual

ROYAL ENFIELD 350cc and 500cc O.H.V. WORKSHOP MANUAL
tilting it so as to disengage the end of the brake
shoe pivot pin from the slot in the fork end in
the case of the "250 Clipper."
When replacing the wheel make sure that the
dogs on the speedometer drive gearbox are
engaged with the slots in the end of the hub
barrel. Make sure also that the speedometer
drive gearbox is correctly positioned so that
there is no sudden bend in the driving cable.
Make sure that the closed end of the spring link
points in the direction of travel of the chain. In
the case of the "250 Clipper" replace the chain
adjuster cams in their original positions or, if
necessary, turn each of them the same number of
notches to tension the chain and maintain correct
wheel alignment. (In the case of Models "S,"
"G" and "J2" turn each adjusting screw the same
number of turns). Do not forget to refit the brake
rod and adjust the brake so that the wheel turns
freely while the brake is off, while at the same
time only a small travel of the brake pedal is
necessary to put the brake on.

4. Removal of Brake Shoes for Replacement,

Fitting New Linings, etc.
Remove the complete wheel as described
above, then remove the left hand spindle nut and
washer (chain adjuster in the case of "250
Clipper") and distance collar, thus permitting the
complete brake cover plate with operating cam,
pivot pin, shoes and return springs to be lifted
off the hub spindle. In the case of the "250
Clipper" and Models "S" and "G" unscrew the
pivot pin locknut and the operating lever nut,
after which the assembly of the brake shoes,
return spring, pivot pin and operating cam can
be removed from the cover plate by unscrewing
the pivot pin and applying light blows with a
hammer and drift on the end of the operating
cam. The return springs can then be unhooked
from the spring posts in the brake shoes, thus
allowing the whole assembly to fall apart.
In the case of Model "J2" the springs can be
unhooked without removing the operating cam
or the pivot pin which is riveted to the cover
plate.
5. Replacing Brake Linings
Brake linings are supplied either in pairs
ready drilled complete with rivets, Part No.
37786BX (6 in. shoes) or 37787BX (7 in. shoes),
or ready fitted to service replacement brake
shoes, Part No. 38042 (6 in. shoes) or 38043 (7
in. shoes). When riveting linings to shoes secure
the two centre rivets first so as to ensure that the
lining lies flat against the shoe. Standard linings
are Ferodo MR41 which are drilled to receive
cheese headed rivets.
REMOVAL OF CENTRE BOLT AND SLIP COLLAR
TO PERMIT REMOVAL OF INNER TUBE
6. Removal of Hub Spindle and Bearings
To remove the hub spindle and bearings,
having already removed the brake cover plate
assembly and speedometer drive gearbox, lift out
the felt washers and distance pieces then hit one
end of the spindle with a copper hammer or
mallet thus driving it out of the hub, bringing
one bearing with it and leaving the other in
position in the hub. Drive the bearing off the
spindle and insert the latter once more in the hub
at the end from which it was removed. Now
drive the spindle through the hub in the opposite
direction, when it will bring out the remaining
bearing.
7. Hub Bearings
These are deep groove single row journal ball
bearings. The lighter bearings used in the "250
Clipper" and Models "S" and "G"are 5/8 in. i/d x
1.9/16 in. o/d x 7/16 in. wide. The Skefko Part
No. is RLS5. Equivalent bearings of other makes
are Hoffmann LS7, Ransome and Marles LJ5/8
in., Fischer LST
The heavier bearings used in the Model J2
are 5/8 in. i/d x 1.13/16 in. o/d x 5/8 in. wide.
The Skefko Part No. is RMS5. Equivalent
bearings of other makes are Hoffmann MS7,
Ransome and Males MJ5/8 in., Fischer MS7.
Fig. 2
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