Advertisement
PREVENTIVE MAINTENANCE
1. BRAKE ADJUSTMENT
Weekly, or whenever push rod stroke exceeds maximum
distance listed on the following chart. For complete
adjustment information, see Bendix Service Data Sheet
SD-05-1.
Ser-
Service
vice Diaphragm
Act-
Effective
uator
Area
Outside
Type
(Sq. In.)
Diameter Stroke Adjusted
24
24
7-7/32
30
30
8-3/32
2. BRAKE LUBRICATION
Grease camshaft bracket with vehicle manufacturer's
recommended chassis lube. Lube once every six months
or at each chassis lubrication.
3. BRAKE RELINE
The life of the brake lining is dependent on many factors
such as the material of the lining, type of operation the
vehicle is used for, and the driver of the vehicle. If driving
conditions require frequent braking, lining replacement
will be required more often. Reline when lining thickness
at center of shoe is 1/4". Refer to section "Reline
Procedure".
4. BRAKE OVERHAUL
As often as necessary to maintain adequate brake
performance. NOTE: When overhauling brake system,
provide equal service to all drive axle brakes on the
vehicle.
WARNING!
PLEASE READ AND FOLLOW
THESE INSTRUCTIONS TO AVOID PERSONAL
INJURY OR DEATH:
When working on or around brake systems and
components, the following precautions should be
observed at all times:
1. Park the vehicle on a level surface, apply the
parking brakes, and always block the wheels.
When working around or under the vehicle, stop
the engine and remove the key from the ignition.
Always keep hands away from chambers as they
may apply as system pressure drops. Always wear
safety glasses.
2. When working in the engine compartment, the
engine should be shut off and the ignition key
should be removed. Where circumstances require
that the engine be in operation, EXTREME CAUTION
should be used to prevent personal injury resulting
from contact with moving, rotating, leaking, heated
or electrically charged components.
Full Pressure
Max.
Max. Stroke
Stroke
at which
With
Brakes
Max.
Brakes
Should Be
Readjusted
short as
possible
without
2-1/4
brakes
1-3/4
2-1/2 dragging
2
3. Do not attempt to install, remove, disassemble or
assemble a component until you have read and
thoroughly understand the recommended
procedures. Use only the proper tools and observe
all precautions pertaining to the use of those tools.
4. Following
the
recommended procedures, deactivate the electrical
system in a manner that safely removes all
electrical power from the vehicle.
5. If the vehicle is equipped with an air over hydraulic
brake system or any auxiliary pressurized air
system, make certain to drain the air pressure from
all reservoirs before beginning ANY work on the
vehicle. If the vehicle is equipped with an AD-IS
air dryer system or a dryer reservoir module, be
sure to drain the purge reservoir.
6. Never connect or disconnect a hose or line
containing pressure; it may whip. Never remove a
component or pipe plug unless you are certain all
system pressure has been depleted.
7. Never exceed manufacturer's recommended
pressure.
8. Never attempt to disassemble a component until
you have read and understand all recommended
procedures. Some components contain powerful
springs and injury can result if not properly
disassembled. Use only proper tools and observe
all precautions pertaining to use of those tools.
9. Use only genuine Bendix
components and kits.
A. Use only components, devices and mounting
and attaching hardware specifically designed
for use in hydraulic brake systems.
B. All replacement hardware, tubing, hose,
fittings, etc. must be of equivalent size, type
and strength as the original equipment.
10. Components with stripped threads or damaged
parts should be replaced rather than repaired. Do
not attempt repairs requiring machining or welding
unless specifically stated and approved by the
vehicle and component manufacturer.
11. Prior to returning the vehicle to service, make
certain all components and systems are restored
to their proper operating condition.
vehicle
manufacturer's
®
replacement parts,
™
3
Advertisement
