Technical information

136
Chapter 5 GENERAL
FAULT - Braking is one-sided
Cause Cure
Incorrect adjustment at wheel. Adjust as described.
Brake cable seized. Free off cable or replace.
Brake lining contaminated with grease. Replace brake shoe assemblies.
FAULT - The trailer brakes during mild decelerations
Cause Cure
Shock absorber in overrun device weak or Examine and replace if necessary.
ineffective.
Brakes overadjusted. Re-adjust as described.
FAULT - The trailer brakes snatch when braking
Cause Cure
Brakes overadjusted. Re-adjust as described.
Brake cable sticking. Examine, free off cable or replace.
Brakes under adjusted. Check complete brake transmission system
and re-adjust if necessary.
Shock absorber weak or ineffective. Replace.
Drawshaft sticking. Check over full stroke, lubricate if necessary.
FAULT - Brake judder
Cause Cure
Linings contaminated with grease. Replace brake shoe assemblies.
Failure of bond between lining and shoe. Replace brake shoe assembly.
Distorted/cracked drum. Replace.
Drums have rusty patches on braking Clean up with sandpaper and wipe out with
surface. meths.
FAULT - Trailer brakes lock up when reversing
Cause Cure
Brakes overadjusted. Re-adjust as described.
Reverse lever not functioning. Check action and rectify.
BRAKE FAULT FINDING CHART — AL-KO