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Brakes
Problem Possible Cause Remedy
No Brakes
Open Circuits Find and correct
Severe under adjustments Adjust brakes
Faulty controller Test and correct/replace
Short circuits Find and correct
Weak Brakes
Great or oil on linings or
magnets
Clean or replace
Corroded connection Clean or replace connectors
Worn lining or magnets Replace
Scored or grooved brake
drums
Machine or replace
Poor Synchronisation Correct Controller setting
Poor Brake adjustment Adjust Brakes
Glazed brake Linings Re-burnish or replace linings
Overloaded trailer
Correct loading. Check at
weighbridge
Brakes Locking
Poor Synchronising with
controller
Adjust controller
Poor Adjustment
Adjust brakes as per
instructions
Faulty controller Test and rectify or replace
Loose, bent or broken
components
Inspect and replace
components
Out-of-round brake drums Machine or replace
Insufficient wheel load (dual
Axle)
Correct trailer level to even
load
Intermittent brakes
Faulty controller Test and Correct
Broken Wires Repair or replace
Loose connections Find and repair
Faulty ground Find and repair