-
-
Rear Broke (Rigid
Wheel)
Brake
Drum
and
Sprocket. Examine the brake drum for scoring or ovallty.
If the drum needs skimming,
it
can be removed from the wheel by bending back
the tabs on the brake drum lock plates and removing the bake drum bolts. Re-
ke
placement
is
the reverse procedure.
If
it
should be necessary to skim more than
,010" (0.254
mm.) from the drum,
it
should be replaced by a new drum. Examine
the sprocket teeth for wear. The top of the tooth should be flat and approximately
ITS
$"
(3.2
mm.) across. When the teeth become worn, the profile becomes pointed
and sharp. Th~s condition
is
dangerous and damage to the chain is likely to follow.
38
Brake Shoes. See page
113.
'Y
ASSEMBLING THE REAR BRAKE ANCHOR PLATE
Brake Operating Spindle and Cam. Grease the spindle of the brake operating
cam and insert
it
into the housing from the inside of the brake anchor plate. Place
on the return spring (long end away from the anchor plate) and tap the lever arm
onto the square shoulder
at
right angles
to
the flat side of the cam. Place on the
lever nut and tighten up.
Brake Shoes.
Place the two shoes on the bench In their relative positions.
Fit
the return springs to the retaining hooks, then, taking a shoe in each hand and at
the same time holding the springs in tension, posltion the shoes
to
the anchor plate.
By turning the top of the shoes inwards, the assembly can be placed over the cam and
fulcrum pin and snapped down into position by pressing on the outsides of the shoes.
Wind the brake lever arm anti-clockwise
to
engage the return spring.
ASSEMBLING THE REAR WHEEL
Hub.
Assemble the brake drum to the hub.
Enter the fixing bolts from the hub
side and position the locking washers inside the brake drum.
Fit the outer
lock-
washer and the fixing bolt nuts; when fully tightened, lock them by bending up the
locking washer tabs.
Bearing Backing Ring.
Place the backing ring in
the brake drum side ofthe hub
and then insert the bearing outer race.
The race should be pressed into the hub.
Repeat operation
to
the opposite side.
Inner
Roller Race. Pack the race with grease and enter the brake drum side
outer race. Place the dust cover over the bearing and press into posltion. Turn
the wheel over and pack into the hub, a small quantity of grease (egg-cupful).
Fit
the remaining race and dust cover.
Spindle.
If the shoulder nut has been removed from the spindle,
it
should now
be replaced and screwed down to the end of the spindle thread (the smaller shoulder
of
the nut must be in the outer position). Enter the spindle into the hub from the
brake side.
I
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