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T-12-T
Maintenance
M
A
I
N
T
E
N
A
N
C
E
FIND AND CORRECT
CORRECT
WRONG MAGNET LEAD
WIRE COLOR
OPEN CIRCUITS
ADJUST BRAKES
ADJUST
INCORRECT ADJUSTMENT
NO BRAKES
SEVERE
UNDERADJUSTMENT
TEST AND CORRECT
CLEAN OR REPLACE
BRAKES PULL TO
ONE SIDE
FAULTY CONTROLLER
FIND AND CORRECT
FIND AND REPAIR
FIND AND REPAIR
BROKEN WIRE
SHORT CIRCUITS
CLEAN OR REPLACE
ADJUST
BAD CONNECTIONS
GREASE OR OIL ON
MAGNETS OR LININGS
CLEAN AND CORRECT
CAUSE OF CORROSION
CORRECT
UNDERADJUSTMENT
CORRODED
CONNECTIONS
REPLACE
CHANGE
IMPROPER
SYNCHRONIZATION
HARSH BRAKES
WORN LININGS
OR MAGNETS
MACHINE OR REPLACE
TEST AND CORRECT
IMPROPER CONTROLLER
SCORED OR GROOVED
BRAKE DRUMS
CORRECT
ADJUST
FAULTY CONTROLLER
WEAK BRAKES
IMPROPER
SYNCHRONIZATION
ADJUST BRAKES
LUBRICATE
UNDERADUSTMENT
UNDERADJUSTMENT
REBURNISH OR REPLACE
REPLACE COMPONENT
LACK OF LUBRICATION
NOISY BRAKE
GLAZED LININGS
CORRECT
CORRECT
BROKEN BRAKE
COMPONENTS
OVERLOADED TRAILER
ADJUST
CLEAN OR REPLACE
INCORRECT BRAKE
COMPONENTS
UNDERADJUSTMENT
CORRECT
MACHINE OR REPLACE
GREASE OR OIL ON
LININGS OR MAGNET
IMPROPER
SYNCHRONIZATION
TEST AND CORRECT
TEST AND CORRECT
OUT OF ROUND OR
CRACKED BRAKE DRUMS
SURGING BRAKES
FAULTY CONTROLLER
REPLACE COMPONENTS
READJUST
FAULTY CONTROLLER
LOCKING BRAKES
LOOSE, BENT OR BROKEN
BRAKE COMPONENTS
MACHINE OR REPLACE
MACHINE OR REPLACE
OVERADJUSTMENT
OUT OF ROUND
BRAKE DRUMS
ADJUST SYSTEM RESISTOR
AND SYNCHRONIZE
REPLACE
OUT OF ROUND
BRAKE DRUMS
INSUFFICIENT
WHEEL LOAD
TEST AND CORRECT
REPLACE
INCORRECT BRAKE
COMPONENTS
FAULTY CONTROLLER
REPAIR OR REPLACE
REPAIR OR REPLACE
LOOSE, BENT OR BROKEN
BRAKE COMPONENTS
INTERMITTENT BRAKES
BROKEN WIRES
FIND AND REPAIR
ADJUST
FAULTY BREAKAWAY
SWITCH
DRAGGING BRAKES
LOOSE CONNECTIONS
FIND AND REPAIR
REPLACE AXLE
LOOSE WHEEL BEARING
ADJUSTMENT
FAULTY GROUND
BENT SPINDLE
GREASE OR OIL ON
LININGS OR MAGNETS
Electric Brake System Troubleshooting Chart
REMEDY CAUSES SYMPTOM CAUSES REMEDY
