5.15 Parts Replacement & Adjustment Procedures - Sullair 600H User Manual

600H, 700HH, 750, 750H, 750HH, 825, 900H, 1050 USER MANUAL
5.15 PARTS REPLACEMENT & ADJUSTMENT PROCEDURES
C F
OMPRESSOR LUID
Warm-up the compressor for 5 to 10 minutes to
warm the fluid. Shut the compressor off and relieve
all internal pressure before proceeding. Drain the
fluid by opening the appropriate drain valve located
in the frame on the curbside of the machine. Close
the valve when draining is complete. Change the
compressor fluid and replace the fluid filter element.
For element replacement see procedure for servicing
the fluid filter in this section. Fill the receiver tank with
fluid according to Section 3.3: Lubrication Guide—
Compressor on page 65.
CAUTION
Do not lift or support the trailer on any part
of the axle or suspension system. Never go
under any trailer unless it is properly sup-
ported on jack stands which have been
rated for the load. Improperly supported
vehicles can fall unexpectedly and cause
serious injury.
G M
ENERAL AINTENANCE
B A
RAKE DJUSTMENT
Figure 5-1: Electric Brake Configuration
Most Dexter 12 1/4" electric brakes have a self-
adjusting feature. If manual adjusting is required, use
the following procedure:
Brakes should be adjusted (1) after the first 200
Disclosure: Portions of this manual were used with the expressed authority of Dexter Axle®, but Dexter Axle® is not responsible for the accuracy of the
information contained herein.
78
C P
HANGE ROCEDURE
- E B
LECTRIC RAKE
miles of operation when the brake shoes and drums
have "seated," (2) at 3,000 mile intervals, (3) or as
used and performance requires. the brakes should
be adjusted in the following manner:
1. Jack up the trailer and secure on adequate
capacity jack stands. Follow trailer manufac-
turer's recommendations for lifting and sup-
porting the unit. Make sure the wheel and
drum rotates freely.
2. Remove the adjusting hole cover from the
adjusting slot on the bottom of the brake
backing plate.
3. With a screwdriver or standard adjusting
tool, rotate the star wheel of the adjuster
assembly to expand the brake shoues.
Adjust the brake soes out until the pressure
of the linings against the drum makes the
wheel very difficult to turn.
4. Then rotate the star wheel in the opposite
direction until the wheel turns freely with a
slight lining drag.
5. Replace the adjusting hole cover and lower
the wheel to the ground.
6. Repeat the above procedure on all brakes.
For best results, the brakes should all be set
at the same clearance.
B C
RAKE LEANING AND
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, theis 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.
Inspect for any loose or worn parts, stretched or
deformed springs and replace as necessary.
B L
RAKE UBRICATION
Before reassembling, apply a light film of grease or
anti-seize compound on the brake anchor pin, the
actuation 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 grease on
SECTION 5
I
NSPECTION