BENDIX SD-08-2414 manual Testing the Bendix AD-IPAIR Dryer

3.The wire harness—available in the Wire Harness and

Splice Kit from authorized Bendix® parts outlets —is not included with the service replacement air dryer. When using this kit, if it becomes necessary to lengthen the harness, use only 14 gauge wire. When splicing wires, ensure all wire splices are waterproofed.

4.Tie wrap or support all electrical wires leading to the Bendix® AD-IP®air dryer at 6–8 inch intervals.

Note: Wires should have sufficient slack and not be completely taught.

TESTING THE BENDIX® AD-IP®AIR DRYER

Before placing the vehicle in service, perform the following tests.

1.Close all reservoir drain cocks.

2.Build up system pressure to governor cut-out and note that the air dryer purges with an audible escape of air.

3.“Fan” the service brakes to reduce system air pressure to governor cut-in. Note that the system once again builds to full pressure and is followed by a purge at the AD-IP air dryer exhaust.

4.It is recommended that the following items be tested for leakage to ensure that the AD-IP air dryer will not cycle excessively.

(A)Total air system leakage (See Bendix publication BW5057 “Air Brake Handbook.”)

(B)Compressor unloader mechanism.

(C)Governor.

(D)Drain cock and safety valve in first (supply) reservoir.

(E)All air connections leading to and from the first

(supply) reservoir.

(F)Delivery check valve.

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