Brakes Not Operating Or
Performing Poorly
Possible Cause Remedy
Worn out brake shoes
or disc brake pads
Replace the brake shoes/pads on
both sides of the axles and check the
drums/rotors for wear or damage.
Foreign material in the
brake unit assembly
Clean thoroughly. Replace the shoes
and linings if contaminated.
Insucient amount of
hydraulic fluid.
Fill the reservoir and bleed the brakes.
Check for leaks.
Broken lines or
pinched line
Replace faulty lines and bleed the
brakes.
Seized actuator mas-
ter cylinder prevents
piston from stroking
Replace actuator master cylinder.
Corrosion/rust keeps
brake from operating
Replace damaged components or
entire brake assembly as required.
When Braking, Brakes Repeatedly Come
On And Release. Braking Is Not Smooth,
Called “Chucking”
Possible Cause Remedy
Loose hitch or ball Correct as necessary.
Not enough tongue
weight or shocks on
tow vehicle too soft
Correct as necessary.
Air in the brake lines. Bleed the brake lines.
Contaminated brake
linings.
Fix the cause of the contamination,
which will likely be a leaky wheel cyl-
inder or hub grease seal. Replace the
linings and clean the braking surface
on the rotor.
Corroded master
cylinder bore or rust
from the brake line
Replace the actuator master cylinder.
Breakaway cable has
been pulled
Reset the push rod release bracket.
Brake line kinked Eliminate the kink. If found on a steel
brake line, the line should be replaced.
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