Royal Enfield 350 BULLET 1956 Workshop Maintenance Manual Download Page 65

Page: 65 / 82

ROYAL ENFIELD WORKSHOP MANUAL

SECTION L13

Rear Wheel

(Quickly Detachable Type with 7 in. diameter

Brake and Full-Width Hub)

1. Description

This wheel is of the "detachable" type, which

enables the main portion of the wheel to be

removed from the machine without disturbing the

chain or brake. The wheel incorporates the

well-known Enfield cush drive and also a 7-in.

internal expanding brake.

2. Removal and Replacement of Main Portion

of Wheel for Tyre Repairs, etc.

Place the machine on the centre stand, if

necessary putting packing pieces beneath the legs

of the stand to lift the wheel clear of the ground.

Remove the dual seat (if fitted) and the detachable

portion of the rear mudguard. Unscrew the loose

section of the spindle, 41369, and withdraw this,

together with the chain adjuster cam, 36649,

preferably marking this to ensure that it is replaced

in the same position. Now slide the distance collar,

41372, out of the fork end and lift away the

speedometer drive gearbox, which can be left

attached to the driving cable. The spacing collar,

40989, and the felt washer behind it may now be

removed to prevent risk of them falling out when

manipulating the tyre. If, however, these are too

tight a fit in the hub to come out easily they may

be left in place. The main body of the wheel can

now be pulled across to the right-hand side of the

machine, thus disengaging the six driving pins

from the cush drive shell and enabling the wheel

to be lifted out of the machine.

When replacing the main portion of the wheel,

reverse the foregoing procedure. The cush drive

shell can be prevented from rotating when turning

the wheel to engage the six driving pins, if the

machine is placed in gear or the rear brake is

operated, taking care, when replacing the

speedometer drive gearbox, that the driving dogs

inside the gearbox engage with the slots in the end

of the hub barrel. Before tightening the centre

spindle make sure that the speedometer drive

gearbox is correctly positioned so that there is no

sharp bend in the driving cable.

3. Removal and Replacement of Complete

wheel for Access to Brake

Place the machine on the centre stand and

remove the dual seat (if fitted) and detachable

portion of the rear mudguard as if for removal of

the main portion of the wheel only. Disconnect

Section L13 Page 2

the rear driving chain at the spring link and remove

the chain from the rear wheel sprocket leaving it in

position on the gearbox countershaft sprocket.

Unscrew the rear brake rod adjusting nut

completely and depress the brake pedal so as to

disengage the rod from the trunnion in the brake

operating lever. Unscrew the brake cover plate

anchor nut, 7598, and remove this together with the

washer behind it. Unscrew the loose section of the

spindle, 41369, two or three turns and the spindle

nut, 28832, by a similar amount. Mark the chain

adjuster cams to ensure replacing in the same

position.* Disconnect the speedometer driving

cable and slide the wheel out

Note that the wheel is not necessarily

correctly  lined  up  when  the  same  notch
position is used on both adjuster cams. Once
the  position  of  the  cams  which  gives  correct
alignment  has  been found  this  alignment will,
however,  be  maintained  if  both  cams  are
moved the same number of notches.

of the fork ends, tilting it so as to disengage the

end of the brake shoe pivot pin from the slot in

the fork end.

When replacing the wheel make sure that the

dogs on the gear in 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. When replacing

the connecting link in the driving chain make sure

that the closed end of the spring link points in the

direction of travel of the chair. Replace the chain