BENDIX TR-2-TR-3-TR-4 INVERSION VALVE Manual - Página 3
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FIGURE 4 - TR-4
™
INVERSION VALVE
Slowly decrease pressure in the control cavity and note at
what pressure delivery is made and compare with vehicle
manual.
NOTE: In the TR-3
™
valve shown in Figure 3 and the TR-4
valve in Figure 4, control pressure is reduced by
decreasing supply air pressure because of the
internal passage connecting supply and control.
™
™
If the TR-2
, TR-3
or TR-4
as described or leakage is excessive, it is recommended
that it be replaced with a new valve or remanufactured unit,
or repaired with genuine Bendix parts available at Bendix
outlets.
WARNING! PLEASE READ AND FOLLOW
THESE
INSTRUCTIONS
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
™
inversion valve does not function
TO
AVOID
PLUNGER
PLUNGER SPRING
SHIM
PISTON SPRING
PISTON
O-RING
PLUGGED
INLET/EXHAUST
VALVE
VALVE STOP
O-RING
1/4" P.T. SUPPLY
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
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
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.
LEVER
COVER
PIN
LOCK NUT
COVER NUT
O-RING
1/4" P.T.
DELIVERY
VALVE
SPRING
CAP
the
vehicle
manufacturer's
®
replacement parts,
™
3