AIR SYSTEM LOSES PRESSURE DURING OPERATION/SLOW, NO, OR INCORRECT AIR PRESSURE BUILDUP (cont)

TM 9-2320-366-20-2

j1. AIR SYSTEM LOSES PRESSURE DURING OPERATION/SLOW, NO, OR INCORRECT AIR

PRESSURE BUILDUP (CONT)

KNOWN INFO

TEST OPTIONS

Soapy Water Leak Test and

FRONT BRAKE/REAR BRAKE

Visual Inspection

AIR pressure gages OK.

Are air hose from air dryer

REASON FOR QUESTION

Air hoses and fittings from air

to wet tank and fittings

cleaner to air compressor OK.

A leaking or damaged hose

free from leaks or damage?

Air hoses and fittings from air

or fitting may cause air system

compressor to air dryer OK.

to loose pressure or take

POSSIBLE PROBLEMS

an excessive amount of

time to build up air pressure.

Damaged air hose from air

dryer to wet tank.

Damaged air hose from wet

tank to air compressor.

Damaged air hoses from wet

tank to primary and secondary

air tanks.

Faulty check valves at primary

and secondary air tanks.

Faulty air dryer purge valve

and/or clogged desiccant

cartridge.

Replace damaged air hose

YES

Faulty air compressor

and/or fittings (para 23-2).

governor.

Faulty air compressor.

2-1954

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