Page E-5
Repair and Service Manual
B
B
BRAKES
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
BRAKE DRUM REMOVAL AND
INSTALLATION (Continued)
Remove cap to gain access to the castellated nut and
the cotter pin.
Remove the cotter pin and castellated nut as shown in
(Ref. Fig. 5).
Do not apply the brake when removing the nut as the shoes
may not fully retract preventing removal of the brake drum.
Pay particular attention to the location of the inner
brake drum washer inside the brake drum, which may
be on the axle shaft or attached to the rear of the drum
hub. This washer must be reinstalled when the brake is
reassembled.
Remove washer and adapter.
Slide the brake drum from the axle shaft. If required, tap
the drum with a plastic faced hammer to loosen it from
the axle shaft or use drum puller.
If shoes interfere with drum removal, rotate adjuster
bolt on back side of backing plate towards the axle to
retract shoes and remove brake drum.
To install the brake drum, clean the axle shaft and the
splines on the brake drum to remove dirt, grease and
foreign matter. Apply a small amount of anti-seize com-
pound to the axle spline. Install the inner brake drum
washer and slide the brake drum into place. Check to
insure the nose of drum hub is beyond the end of the
axle splines. If not, remove drum and install one addi-
tional inner brake drum washer (total of 2) to obtain
required spacing. If two inner brake drum washers do
not provide the required spacing, the brake drum is
incorrect and must be replaced with a new drum.
Do not back off nut to install cotter pin.
Install the remaining hardware and tighten the nut to 70
ft. lbs. (95 Nm) torque. Continue to tighten until a new
cotter pin can be installed through the castellated nut
and the hole in the axle. Maximum torque is 140 ft. lbs.
(190 Nm).
Wheel Brake Service
Tool List
Qty.
Dust mask ................................................................... 1
Safety glasses ............................................................. 1
Socket, 3/4", 1/2" drive ................................................ 1
Ratchet, 1/2" drive....................................................... 1
Wheel chocks .............................................................. 4
Hydraulic floor jack ...................................................... 1
Jack stands ................................................................. 2
Brush ........................................................................... 1
Wheel cylinder clamp .................................................. 1
Pliers ........................................................................... 1
Wrench, 9/16".............................................................. 1
Wrench, 10 mm ........................................................... 1
Shop towels............................................................. A/R
Socket, 7/16", 3/8" drive .............................................. 1
Torque wrench, 3/8" drive, in. lbs. ............................... 1
Wire brush ................................................................... 1
Grease .................................................................... A/R
High temperature lubricant ...................................... A/R
Socket, 10 mm, 3/8" drive ........................................... 1
Socket, 9/16", 3/8" drive .............................................. 1
Locking pliers .............................................................. 1
Thread locking compound ....................................... A/R
Wear a dust mask and eye protection when-
ever working on wheel brakes. Do not use
pressurized air to blow dust from brake
assemblies. Replace both brake shoes on
both wheels if one or more shoes are worn
below .06" (1.5mm) thickness at any point.
Do NOT touch any of the wheel brake mechanism
except as instructed.
Do NOT use a commercial brake cleaner unless the
entire brake has been disassembled.
Be sure that the parking brake is released.
Loosen rear wheel lug nuts and lift rear of vehicle
Remove wheel and drum. (Ref. Fig. 5). Remove excess
dust and dirt from the drum with a brush.
Remove any accumulated brake dust from the wheel
brake assembly with a brush.
Install wheel cylinder clamp, then unhook upper and
lower shoe to shoe springs.
NOTICE
