BENDIX RV-3 PRESSURE REDUCING VALVE General Description - Page 2

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OPERATING & LEAKAGE TESTS

OPERATING

Connect an accurate test gauge in the supply and delivery

lines of the RV-3

™

valve. Make certain that supply air

pressure is at the vehicle manufacturers recommended level.

Delivery pressure should be within plus or minus 5 p.s.i. of

the delivery pressure specified for the RV-3

the valve should be replaced. If the valve meets this operating

test, proceed to the leakage tests. Do not remove the gauges

at this time.

LEAKAGE

With supply pressure at the level recommended by the vehicle

manufacturer, apply a soap solution to the 1/8" N.P.T. plug,

around the supply port cap nut and to the exhaust port.

Leakage should not exceed 100 SCCM or a 1" diameter

bubble in 5 seconds. If leakage is excessive, the valve should

be replaced and the operating and leakage tests performed

at the time of replacement. Proceed to the "Removal and

Installation" instructions. This concludes the operation and

leakage tests and the test gauges should be removed.

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

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.

valve. If not,

™

AVOID

™

5. Following

the

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.

REMOVAL & INSTALLATION

REMOVAL

1. Hold the vehicle on a level surface by means other than

the air brakes.

2. Remove all air pressure from all reservoirs.

3. Identify, mark and then disconnect all air lines attached

to the valves.

4. Remove the valve.

INSTALLATION

1. Inspect and clean all air lines that connect to the valve.

2. Clean the vehicle valve mounting area and mount the

valve.

3. Reconnect the air lines according to the identification

marks made during removal.

PREVENTIVE MAINTENANCE

Important: Review the Bendix Warranty Policy before

performing any intrusive maintenance procedures. A warranty

may be voided if intrusive maintenance is performed during

the warranty period.

No two vehicles operate under identical conditions, as a

result, maintenance intervals may vary. Experience is a

valuable guide in determining the best maintenance interval

for air brake system components. At a minimum, the RV-3

valve should be inspected every 6 months or 1500 operating

hours, whichever comes first, for proper operation. Should

the RV-3

valve not meet the elements of the operational

™

tests noted in this document, further investigation and service

of the valve may be required.

vehicle

manufacturer's

replacement parts,

™