Lippert Components Trailer Axle (8-12K) - Manual (Page 21)

Rev: 04.18.2014
Page 21
Trailer Axle 8-12K Owners Manual FULL
Problem Probable Cause Corrective Action
No brakes
Open circuits Find and correct
Short circuits Test and correct
Severe under-adjustment Adjust brakes
Weak brakes
Grease or oil on magnets or linings Clean or replace
Corroded connections Clean and correct cause of corrosion
Worn linings or magnets Replace
Scored or grooved brake drums Machine or replace
Improper synchronization Correct
Under-adjustment Adjust brakes
Glazed Linings Re-burnish or replace
Locking brakes
Under-adjustment Adjust
Improper synchronization Correct
Loose, bent or broken brake components Test and correct
Out-of-round brake drums Machine or replace
Insufficient wheel load Adjust system resistor and synchronize
Intermittent brakes
Broken wires Test and correct
Loose connections Repair or replace
Faulty ground Find and repair
Brakes pull to one
side
Wrong magnet lead wire color Adjust
Incorrect adjustment Correct
Grease or oil on linings or magnets Clean or replace
Broken wires Find and repair
Bad connections Find and repair
Harsh brakes
Under-adjustment Adjust
Improper synchronization Correct
Noisy brakes
Under-adjustment Adjust
Lack of lubrication Lubricate
Broken component Replace component
Incorrect brake components Correct
Surging brakes
Grease or oil on linings or magnets Clean or replace
Out-of-round or cracked brake drums Machine or replace
Dragging brakes
Over-adjustment Readjust
Out-of-round brake drums Machine or replace
Incorrect brake components Replace
Loose, bent or broken brake components Replace
Faulty breakaway switch Repair or replace
Loose wheel bearing adjustment Adjust
Bent spindle Replace axle
Troubleshooting Chart
NOTE: If all trailer lights and brakes do not work, check your wiring plug connection and make sure the ball
is making solid contact with the coupler (that is how a trailer is grounded). Too much grease or not
using dielectric grease on the ball and coupler can cause this to happen.