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2)
PARKING BRAKE MALFUNCTIONS
Problem
Brake will not hold
Brake disk overheats
Parking brake indicator
in monitor does not
come on when brake
applied
Brake will not apply
Cause
Pads not adjusted correctly
Malfunctioning parking brake
solenoid
Worn brake disk and / or brake
pads
Brake piston hangs up in bore
Pads out of adjustment
Brake not released
Faulty wiring or switch
Pads out of adjustment
Malfunctioning wiring, switch, or
solenoid
Restriction between brake valve
and brake
Adjust parking brake.
Inspect and replace.
Disassemble, inspect, repair.
Remove and inspect. Repair.
Adjust parking brake.
Release parking brake.
Disassemble, inspect brake.
Repair if necessary.
Inspect for loosen or broken lines between brake
pressure switch and indicator on dash.
Inspect for loose or broken lines between brake
pressure switch and indicator on dash.
Inspect for a faulty indicator on dash. Replace if
necessary.
Adjust parking brake.
Check electric circuit.
Remove hose and inspect. Replace.
4-39
Remedy
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