BENDIX AR-2 ANTILOCK RELAY VALVE Manuel - Page 5
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TRAILER
SUPPLY
VALVE
INLET-OPEN
EXHAUST-OPEN/CLOSED
FIGURE 5 - TRACTOR SERVICE BRAKES RELEASING - TRACTOR TRAILER COMBINATION
PREVENTIVE MAINTENANCE
GENERAL
Perform the tests and inspections presented at the
prescribed intervals. If the AR-2
described, or leakage is excessive, it should be repaired or
replaced with a new or genuine Bendix remanufactured
unit, available at any authorized parts outlet.
EVERY 3 MONTHS, 25,000 MILES OR 900 OPERATING
HOURS
1. Remove any accumulated contaminates and visually
inspect the exterior for excessive corrosion and physical
damage.
2. Inspect all air lines connected to the AR-2
signs of wear or physical damage. Replace as necessary.
3. Test air line fittings for excessive leakage and tighten or
replace as necessary.
4. Perform the Leakage Test described in this manual.
EVERY YEAR, 100,000 MILES, OR 3,600 OPERATING
HOURS
1. Perform the Operation and Leakage Tests described in
this manual.
™
valve fails to function as
™
valve for
ANTILOCK
CONTROLLER
INLET-CLOSED
EXHAUST-OPEN
M-21
REAR AXLE SERVICE
CHAMBER
0 PSI
BRAKE VALVE DELIVERY PRESSURE
(AR-2
™
VALVE SERVICE PORT)
™
FIGURE 6 - AR-2
VALVE BRAKE PRESSURE DELIVERY
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.
SERVICE
BRAKE
VALVE
™
MODULATOR
TRACTOR
TRAILER
COMBINATION
BOBTAIL
TRACTOR
TO
AVOID
5