Airstream INTERNATIONAL TRAILER Owner's Manual page 50

AIRSTREAM INTERNATIONAL TRAILER OWNERS MANUAL
BRAKE CLEANING, INSPECTION AND LUBRICATION
Your trailer brakes must be inspected and serviced at yearly intervals or more often as use and performance
requires. Magnets and shoes must be changed when they become worn or scored thereby preventing
adequate vehicle braking.
Cleaning and Inspection
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. Inspect the magnet arm for any loose or worn parts. Check
shoe return springs, hold down springs, and adjuster springs for stretch or deformation and replace if
required.
WARNING
FRICTION MATERIALS NORMALLY CONTAIN ASBESTOS, CERTAIN
PRECAUTIONS NEED TO BE TAKEN WHEN SERVICING BRAKES.
1. AVOID CREATING OR BREATHING DUST.
2. AVOID MACHINING, FILING, OR GRINDING THE BRAKE LININGS.
3. DO NOT USE COMPRESSED AIR OR DRY BRUSHING FOR CLEANING. (DUST
CAN BE REMOVED WITH A DAMP BRUSH.)
Brake Lubrication
Before reassembling apply a light film of Lubricate or similar grease 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 and magnet
lever arm. Apply a light film of oil on the actuating block mounted on the actuating arm.
CAUTION
: DO NOT GET GREASE OR OIL ON THE BRAKE LININGS OR DRUMS
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. As indicated
below a straightedge should be
used to check wear.
Even if wear is normal as indicated by your straightedge 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 re-faced when replacing magnets. (See Brake Drum Section) Magnets
should also be replaced in pairs (both sides of an axle). Use only genuine Dexter replacement parts when
replacing your magnets.
:
ASBESTOS DUST HAZARD. SINCE MOST BRAKE SHOE
D-16