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Brake reacts by jerks Excessive backlash in brake system Re-adjust brake system by Rioned
Shock absorber of overrunning hitch
defective
Replace shock absorber
Backmat brake shoe is jammed in the
brake shoe holder
Replace completely brake shoes with
brake shoe holders
Trailer is braked unilaterally
Wheel brakes are actuated unilaterally Re-adjust brake system by Rioned
Brake lining not run in Actuate hand-brake lever slightly;
drive 2-3 kilo meters
Brake glassy, soiled or damaged by oil Replace brake shoes completely; clean
braking areas in the brake drums
Overrunning hitch is stiff Grease overrunning hitch
Backmat-blocks clamped in brake-shoe
holders
Replace completely brake shoes with
brake-shoe holders
Trailer is already braked when
the accelerator pedal is
released
Shock absorber of overrunning hitch
defective
Replace shock absorber
Reverse driving hard to accom-
plish, or even impossible
Brake system adjusted too tightly Re-adjust brake system by Rioned
Cables pre-loaded Re-adjust brake system by Rioned
Backmat brake shoe is jammed in the
brake shoe holder
Replace completely brake shoes with
brake shoe holders
Braking action of hand-brake
insufficient
Incorrect settings Re-adjust brake system by Rioned
Actuate hand-brake lever as far as
possible
Wheel brakes get hot Brake system incorrectly set Re-adjust brake system by Rioned
Overrunning hitch hard to operate Grease overrunning hitch
Brake linkage is jammed or deformed Eliminate cause
Brake cables rusty or kinked Replace cables
Backmat brake shoe is jammed in the
brake shoe holder
Replace completely brake shoes with
brake shoe holders
Brake system adjusted too tightly Re-adjust brake system by Rioned
Wheel brakes dirty Clean
Reversing lever of overrunning hitch is
jammed
Remove reversing lever, clean it and
grease it with Molykote
Spring-type actuator is pre-loaded in
zero position; nut is turned too far
Re-adjust brake system by Rioned
Handbrake lever not or only partially
released
Set handbrake lever into zero-position
Ball coupling does not rest on
ball
Coupling dirty the inside Clean and grease thoroughly
Ball of towing vehicle too big Check ball diameter:
The ball on the car must exceed 50
mm in diameter when new, and it
must be ø49,5 mm. - If the ball diame-
ter decreases to less than 49,0 mm,
the ball has to be replaced.
The ball must be perfectly spherical
Failure Reason Solution
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