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 hoses from wet tank

REASON FOR QUESTION

Air hoses and fittings from air

to primary and secondary

cleaner to air compressor OK.

A leaking or damaged air

air tanks, check valves, and

Air hoses and fittings from air

hose or fitting may cause air

fittings free from damage?

compressor to air dryer OK.

system to loose pressure or

Air hose and fittings from

take an excessive amount of

air dryer to wet tank OK.

time to build up air pressure.

Air hoses and fittings from

wet tank to air compressor OK.

POSSIBLE PROBLEMS

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.

Faulty air compressor

governor.

Replace damaged air hose

YES

Faulty air compressor.

and/or fittings (para 23-2).

2-1958

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