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Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
SYSTEM DESCRIPTION
NOTICE: To ensure correct braking performance, all
periodic maintenance, inspections and procedures
must be performed as indicated in the SCHEDULED
MAINTENANCE section of this manual. The brake
system must be bled whenever any part of the brake
system has been replaced.
A hydraulic system is used to actuate the front disc
brakes and the rear drum brakes. The system transmits
the power required to activate the friction surfaces (pads
and shoes) of the braking system from the pedal to the
individual wheels.
Daily Brake Performance Test
NOTICE: To assure correct braking performance, all
periodic maintenance, inspections and procedures
must be performed as indicated in the Scheduled
Maintenance section of this manual. It is important
that Daily Brake Performance Test be performed and
the entire brake system be serviced in accordance
with the Scheduled Maintenance.
The brake system must be bled whenever any part
of the brake system has been replaced.
Press brake pedal. The pedal should have some free play
and then become hard. A brake pedal that has no free
travel, excessive free travel or a spongy feel indicates a
brake inspections is required. A brake pedal that falls
after it is applied indicates a leak in the master or wheel
cylinders. Check brake fluid level. Adjust brakes if
required and inspect system for fluid leaks.
Brake System Inspection
Brake failure usually occurs as either a gradual decrease
in braking effect from the shoe material being worn away,
a loss of braking at one wheel or a sudden and complete
failure with no brakes working except the parking brake.
Inspect front and rear brakes for signs of fluid leakage.
Inspect rear brake shoes and front disc pads for wear.
NOTICE: Care should be taken to prevent brake fluid
from coming into contact with the brake shoes. If
the brake shoes should become wet with hydraulic
fluid, remove the brake drum and wipe the brake
shoes and drum until they are dry.
Complete brake failure usually indicates a loss of hydrau-
lic fluid pressure.
The hydraulic system may be checked for leaks by apply-
ing pressure to the pedal gradually and steadily. If the
pedal sinks very slowly to the floor, the system has a leak.
This is not to be confused with a springy or spongy feel
due to the compression of air within the lines.
653045
REAR HYDRAULIC REAR HYDRAULIC BRAKES
REAR HYDRAULIC BRAKES
Repair and Service Manual
Check for leaks along all lines and at brake assembly. If
no external leaks are apparent, the problem is inside the
master cylinder.
Do not allow brake fluid to contact
painted surfaces. Wipe off immedi-
ately.
After making any repairs to hydraulic lines, wheel cylin-
ders or master cylinder, the brakes must be bled to
remove any trapped air. A bleeder valve is located at
each wheel cylinder for this purpose.
To assure correct braking performance, all periodic main-
tenance, inspections and procedures must be performed
as indicated in the SCHEDULED MAINTENANCE section
of this manual. The brake system must be bled whenever
any part of the brake system has been replaced, refer to
BLEEDING BRAKES in BRAKES section.
BRAKE DRUM REMOVAL AND
INSTALLATION
Tool List
Slip Joint Pliers ............................................................1
Needle Nose Pliers ......................................................1
Socket, 1 1/8", 1/2" ......................................................1
Ratchet ........................................................................1
Plastic Faced Hammer ................................................1
Drum Puller (P/N 15947G1).........................................1
Wrench, 7/16" ..............................................................1
Anti-seize Compound ...............................................AR
Torque Wrench, ft. lbs..................................................1
The drum must not be machined to
remove grooves. Turning will make
the drum too thin causing drum and
brake failure which could cause severe injury or
death.
Wear a dust mask and eye protection whenever
working on wheel brakes. Do not use pressurized
air to blow dust from brake assemblies.
NOTICE: 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 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 spindle cap to gain access to the castellated nut
and the cotter pin.
Remove the cotter pin and castellated nut (Figure 1).
B
Quantity
69
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