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Handbrake
A correctly adjusted handbrake should raise 1/3 to ½ of the allowable range at the handbrake handle. Poorly adjusted
handbrakes are dangerous. Under adjusted they may allow the trailer to roll and over adjusted can cause brake linings to
drag and overheat the brakes while driving.
Parking brakes are mechanically operated by cable means. The cable attachment occurs outside of the brake backing
plate. Cable force applied to the parking lever creates a torque through the pivot pin and cam assembly. Torque
transferred to the parking cam results in a spreading force between the primary and secondary shoes. The shoes in turn,
move towards the drum until contact is made. Friction generated between the drum and lining contact surface results in
parking brake capability.
Use the cable adjuster to give enough tension to be able to set the handbrake lever on the last two notches of the
coupling or handbrake is 1/3 raised when unladen. This needs to be checked again when the trailer or caravan is loaded.
If the cable is too tight, the brakes will be applied as the axle moves backward under spring deflection.
Adjuster
To adjust the handbrake cable tension release locknuts A, B and C in the diagram Handbrake Adjuster 1 below. To
tighten the handbrake cable, turn the adjuster wheel D in a clockwise direction. Once adjusted retighten lock nuts
and test. Always ensure that wheels turn freely when handbrake is off. Overtightened cables can cause brakes to
drag and damage the brake linings.
Hitch
Cruisemaster DO35
To ensure a long service life we recommend the following periodic maintenance procedures.
1. Always keep Tow Pin and Universal mating surfaces clean and lightly lubricated.
2. Check condition of Tow Pin O-Ring and replace if necessary (Part No. 18D-DO35-101).
3. Regularly lubricate grease points with multi-purpose grease.
4. Periodic adjustment of Slotted Nut & Pin may be required of coupling head loosens excessively
and should be a competent person.
5. Flush with clean water if locking mechanism does not open fully due to dirt ingress.
Ball Bearing Slides
To lubricate and protect from corrosion the ball bearing slides should be lubricated with a small amount of general
purpose grease every 6 months.
