Specifications

Possible cause: Remedy:
Contaminated brake linings. Fix the cause of the contamination, which will be
a leaky wheel cylinder or hub grease seal. Replace
the linings and clean the braking surface on the
rotor.
Possible cause: Remedy:
Corroded master cylinder bore or Replace the actuator master cylinder.
rust from the brake line.
Possible cause: Remedy:
Breakaway cable has been pulled. Reset the push rod release bracket.
Problem: Brakes do not operate or there is poor brake performance.
Possible cause: Remedy:
Worn out brake shoes or disc Replace the brake shoes/pads on both sides
brake pads. of the axles and check the drums/rotors
for wear or damage.
Possible cause: Remedy:
Foreign material in the brake Clean thoroughly. Replace the shoes
unit assembly. and linings if contaminated.
Possible cause: Remedy:
Insufficient amount of hydraulic Fill the reservoir and bleed the brakes.
fluid. Check for leaks.
Possible cause: Remedy:
Broken lines or pinched line. Replace faulty lines and bleed the brakes.
Possible cause: Remedy:
Seized actuator master cylinder Replace actuator master cylinder.
that prevents the piston from
stroking.
Possible cause: Remedy:
Corrosion/rust keeps brake Replace damaged components or entire
from operating. brake assembly as required.
Problem: One brake is overheating.
Possible cause: Remedy:
Disc brake caliper does not Check the caliper. Sections must be free
permit the brake pads to release. to move apart If frozen in place, remove
and free it up. Caliper piston may freeze up
and prevent pads from retracting. Clean
contaminants out of the piston cavity. Replace
the piston, seal and protective dust cover boot.
Bleed the brake system.
MasterCra Trailer Manual • Page 33