Lt60 Electric Brakes - Wallenstein LXT95 Operator's Manual

9�2�7 LT60 ELECTRIC BRAKES
Trailer Brakes are part of the Highway option for the LT60
Only a qualified mechanic trained in the repair and maintenance of braking systems should attempt brake
repair, and replacement. When making adjustments or repairs to the electric brakes: be aware that there is
a left and right brake assembly.
Your trailer brakes must be inspected and serviced immediately if a loss of performance is indicated. With
normal use, servicing at one year intervals is usually adequate. With increased usage, this work should be
done more frequently as required. Magnets and shoes must be changed when they become excessively worn
or scored, a condition which can reduce vehicle braking. Clean the backing plate, magnet arm, magnet, and
brake shoes. Make certain that all the parts removed are replaced in the same brake and drum assembly.
Before reassembling, apply a light film of grease or anti-seize compound on the brake anchor pin, the
actuating arm bushing and pin, and the areas on the backing plate that are in contact with the brake shoes.
Brake Lining
A simple visual inspection of your brake linings will tell if they are usable. Replacement is necessary if the
lining is worn (to within 1/16 or less), contaminated with grease or oil, or abnormally scored or gouged.
Hairline heat cracks are normal in bonded linings and should not be cause for concern. When replacement
is necessary, it is important to replace both shoes on each brake and both brakes of the same axle. This will
help retain the "balance" of your brakes.
Magnets
Your electric brakes are equipped with high quality electromagnets that are designed to provide the proper
input force and friction characteristics. Your magnets should be inspected and replaced if worn unevenly
or abnormally. For best results, the magnet should be flat. Even if wear is normal the magnets should be
replaced if any part of the magnet coil has become visible through the friction material facing of the magnet.
It is also recommended that the drum armature surface be refaced when replacing magnets (see section on
Brake Drum Inspection). Magnets should also be replaced in pairs - both sides of an axle.
Hardware
• Check all hardware.
• Check shoe return spring, hold down springs, and adjuster springs for stretch or wear. Replace as
required.
• Service kits are available.
To make brake adjustments to your LT Log trailer, follow the procedure explained below. If you are not sure
about making these adjustments, have a qualified mechanic make the adjustments.
Ensure the machine is set in safe condition (see 8.2) before
performing maintenance.
1. Raise the trailer wheel so it can turn freely.
2. Locate and remove the dust cover from the adjusting slot on
the lower back of the brake backing plate.
3. Locate the brake adjusting screw [called a star adjuster] through
the adjusting slot and insert a brake adjusting tool. Adjust the
brake shoes out [tighten by turning the star adjuster down on
the left side drum and up on the right side drum] until tires
will not turn by hand, then back off [loosen by turning the star
adjuster up on the left side drum and down on the right side
drum] the adjustment until the wheel turns freely, usually with
a slight lining drag.
4. If properly adjusted the drum should turn freely and have a
barely audible sound of the shoes against the drums. This
indicates that the shoes are in contact with the drum, but not
dragging a lot.
Backing
Adjusting
65
Plate
Slot
Dust Cap
Brake
Adjust Tool