How To Guides


Electric Brake Trouble Shooting Guide for Trailers


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PROBLEM
CAUSES
REMEDIES
NO BRAKES
OPEN CIRCUITS
FIND AND CORRECT
SEVERE UNDERADJUSTMENT ADJUST BRAKES
FAULTY CONTROLLER TEST AND CORRECT
SHORT CIRCUITS FIND AND CORRECT
WEAK BRAKES
GREASE/OIL ON MAGNETS/LININGS
CLEAN OR REPLACE
CORRODED CONNECTIONS CLEAN/CORRECT CAUSE
WORN LININGS OR MAGNETS REPLACE
SCORED/GROOVED BRAKE DRUMS MACHINE OR REPLACE
IMPROPER SYNCHRONIZATION CORRECT
UNDER ADJUSTMENT ADJUST BRAKES
BLAZED LININGS REBURNISH OR REPLACE
OVERLOADED TRAILER CORRECT
LOCKING BRAKES
UNDER ADJUSTMENT
ADJUST
IMPROPER SYNCHRONIZATION CORRECT
FAULTY CONTROLLER TEST AND CORRECT
LOOSE, BROKEN BRAKE PARTS REPLACE COMPONENTS
OUT OF ROUND BRAKE DRUMS MACHINE OR REPLACE
INSUFFICIENT WHEEL LOAD ADJUST SYSTEM RESISTOR
INTERMITTENT BRAKES
FAULTY CONTROLLER
TEST AND CORRECT
BROKEN WIRES REPAIR OR REPLACE
LOOSE CONNECTIONS FIND AND REPAIR
BRAKES PULL TO ONE SIDE
INCORRECT ADJUSTMENT
ADJUST
GREASE/OIL ON LININGS/MAGNET CLEAN OR REPLACE
BROKEN WIRES FIND AND REPAIR
BAD CONNECTIONS FIND AND REPAIR
HARSH BRAKES
UNDER ADJUSTMENT
ADJUST
IMPROPER SYNCHRONIZATION CORRECT
IMPROPER CONTROLLER CHANGE
FAULTY CONTROLLER TEST AND CORRECT
NOISY BRAKES
UNDER ADJUSTMENT
ADJUST BRAKES
LACK OF LUBRICATION LUBRICATE
BROKEN BRAKE PARTS REPLACE COMPONENT
INCORRECT BRAKE PARTS REPLACE
SURGING BRAKES GREASE/OIL ON LININGS/MAGNET
CLEAN OR REPLACE
OUT OF ROUND BRAKE DRUMS MACHINE OR REPLACE
FAULTY CONTROLLER TEST AND CORRECT
DRAGGING BRAKES
OVER ADJUSTMENT
READJUST
OUT OF ROUND BRAKE DRUMS MACHINE OR REPLACE
INCORRECT BRAKE PARTS REPLACE
BROKEN BRAKE PARTS REPLACE
FAULTY BREAKAWAY SWITCH REPAIR OR REPLACE
LOOSE WHEELBEARING ADJ. ADJUST
BENT SPINDLE REPLACE AXLE

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