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GENERAL SAFETY GUIDELINES

WARNING! PLEASE READ AND

FOLLOW THESE INSTRUCTIONS

TO AVOID PERSONAL INJURY OR DEATH:

When working on or around a vehicle, the following

guidelines should be observed AT ALL TIMES:

▲Park the vehicle on a level surface, apply the parking

brakes and always block the wheels. Always wear personal

protection equipment.

▲Stop the engine and remove the 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.

▲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.

▲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 a Bendix

DRM

dryer reservoir module, or a Bendix

™

dryer, be sure to drain the purge reservoir.

▲ Following the vehicle manufacturer's recommended

procedures, deactivate the electrical system in a manner

that safely removes all electrical power from the vehicle.

▲Never exceed manufacturer's recommended pressures.

▲Never connect or disconnect a hose or line containing

pressure; it may whip and/or cause hazardous airborne

dust and dirt particles. Wear eye protection. Slowly open

connections with care, and verify that no pressure is

present. Never remove a component or plug unless you are

certain all system pressure has been depleted.

▲ Use only genuine Bendix

components and kits. Replacement hardware, tubing, hose,

ﬁ ttings, wiring, etc. must be of equivalent size, type and

strength as original equipment and be designed speciﬁ cally

for such applications and systems.

▲Components with stripped threads or damaged parts should

be replaced rather than repaired. Do not attempt repairs

requiring machining or welding unless speciﬁ cally stated

and approved by the vehicle and component manufacturer.

▲Prior to returning the vehicle to service, make certain all

components and systems are restored to their proper

operating condition.

▲ For vehicles with Automatic 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.

▲The power MUST be temporarily disconnected from the

radar sensor whenever any tests USING A DYNAMOMETER

are conducted on a vehicle equipped with a Bendix

Wingman

system.

▲You should consult the vehicle manufacturer's operating

and service manuals, and any related literature, in

conjunction with the Guidelines above.

AD-IS

air dryer system, a Bendix

AD-9si

brand replacement parts,

OPERATING AND LEAKAGE CHECKS

1. Block and/or hold the vehicle by a means other than the

air brakes during these tests. Place the trailer supply

valve in the emergency position and disconnect the

trailer supply and service couplings.

2. With the tractor reservoirs charged to at least 100 psi,

make and hold a full service brake application. Leakage

at either tractor hose coupling should not exceed a one

(1) inch bubble in five seconds (100 SCCM).

3. Connect the trailer supply or emergency line hose

coupling and place the trailer supply valve in the run

position. Leakage at the service coupling should not

exceed a one (1) inch bubble in five seconds (100

SCCM).

4. Connect the service coupling and make and hold a full

service brake application: Leakage at the diaphragm

end of the Bendix

one (1) inch bubble in three seconds (175 SCCM).

NOTE: If the TP‑3 valve does not function as

described, or if leakage is excessive, it is recommended

that it be replaced or repaired using genuine Bendix

service replacement parts.

REMOVAL

air

Remove the trailer hose assemblies from the TP‑3 valve.

Disconnect the tractor service and supply lines and remove

the TP‑3 valve.

INSTALLATION

When installing the TP‑3 valve, refer to Figure 2, and the

following explanation, for proper connections.

1. The delivery line from the Bendix

valve is connected to the tractor emergency port of the

TP‑3 valve.

2. The delivery line from the brake valve (or double‑check

valve) is connected to the tractor service port of the

TP‑3 valve.

3. Trailer hose assemblies are installed in the trailer

emergency and trailer service ports of the TP‑3 valve.

TP‑3

valve shall not exceed a

MV‑3

dash control