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 supply hose from air

REASON FOR QUESTION

Air hoses and fittings from air

compressor to air dryer

A leaking or damaged supply

cleaner to air compressor OK.

and fittings free from

hose or fitting may cause air

leaks or damage?

POSSIBLE PROBLEMS

system to loose pressure or

take an excessive amount of

Damaged air hose from air

time to build up air pressure.

compressor to air dryer.

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 supply air

YES

Faulty air compressor

hose and/or fittings (para 23-2).

governor.

Faulty air compressor.

2-1952

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