Bendix Commercial Vehicle Systems RESERVOIRS 8/04 - Manual (Page 3)

3
ASSEMBLY
GENERAL
Before assembly, the o-rings should be coated with silicone
lubricant BW-650-M Bendix pc. number 291126.
ASSEMBLY OF THE BALL STYLE CHECK VALVE
Replace seat o-ring and press seat into shell. Replace seat
spring. Install check valve and valve spring. Replace o-ring
on cap nut and install and tighten cap nut.
ASSEMBLY OF THE FLAT STYLE CHECK VALVE.
Replace valve guide on valve and install valve.
Install valve spring.
Replace o-ring on cap nut and install and tighten cap nut.
TEST
Perform tests as outlined in “Operation and Leakage Test”
section.
INSTALLATION
Reservoirs should be securely mounted where they will be
protected against outside damage and so they will not
vibrate or move during normal operation of the vehicle. A
vibrating reservoir usually causes broken tubing lines.
They should be the low point in the air brake system and all
lines connected to them should drain toward the reservoir.
The pipe tapped openings in the reservoir should not under
any circumstances be reduced in size from original
installation.
A drain cock or draining device must be installed in the
bottom connection of every reservoir and, in the case of
the two-compartment reservoir, in each compartment.
The first reservoir or first compartment must be protected
by installing a safety valve.
MINOR REPAIRS
Minor repairs to the reservoir consist of examining the
reservoir mounting and the inspection of the outside for
corrosion or damage. The outside should be kept painted
to prevent the possibility of corrosion causing a failure.
MAJOR REPAIRS
Repairs involving welding should never be performed on
reservoirs. If a reservoir has been damaged so as to be
unfit for use, it should be replaced with a new one.
In exceptional cases where the inside of a reservoir has
become excessively coated with sludge which cannot be
drained off, it is sometimes advisable to remove it and clean
with a solvent, steam, or water. If a solvent is used to clean
the reservoir, the reservoir should be thoroughly aerated before
reinstalling.
WARNING! PLEASE READ AND FOLLOW
THESE INSTRUCTIONS TO AVOID
PERSONAL INJURY OR DEATH:
When working on or around a vehicle, the following
general precautions should be observed at all times.
1. Park the vehicle on a level surface, apply the
parking brakes, and always block the wheels.
Always wear safety glasses.
2. Stop the engine and remove ignition key when
working under or around the vehicle. 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.
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 use of those tools.
4. If the work is being performed on the vehicle’s air
brake system, or any auxiliary pressurized air
systems, 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.
5. Following the vehicle manufacturer’s
recommended procedures, deactivate the electrical
system in a manner that safely removes all electrical
power from the vehicle.
6. Never exceed manufacturer’s recommended
pressures.
7. Never connect or disconnect a hose or line
containing pressure; it may whip. Never remove a
component or plug unless you are certain all
system pressure has been depleted.
8. Use only genuine Bendix ® replacement parts,
components and kits. Replacement hardware,
tubing, hose, fittings, etc. must be of equivalent
size, type and strength as original equipment and
be designed specifically for such applications and
systems.
9. 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.
10. Prior to returning the vehicle to service, make
certain all components and systems are restored to
their proper operating condition.
11. For vehicles with Antilock Traction Control (ATC),
the ATC function must be disabled (ATC indicator
lamp should be ON) prior to performing any vehicle
maintenance where one or more wheels on a
drive axle are lifted off the ground and moving.