SECTION III. TROUBLESHOOTING - TM-55-4940-353-13-P0016

TM 55-4940-353-13&P

NOTE

21. Replace tubing assembly (1).

Check shifting operation; cycle pump

NOTE

several times. If the air valve does not shift

properly, turn nut (9) down 1/2 turn;

Inspect tubing carefully for defective flares

recheck operation.

before installation.

19. Install shakeproof washer (8) and nut (7) on

22. Install into the circuit such as illustrated in

connecting rod (18). Hold nut (9) and tighten nut (7).

figure 2-1 and operate in accordance with operating

procedures outlined in Chapter 2.

20. Install gasket (6) and cover (5) and attach

with bolts (4).

SECTION III. TROUBLESHOOTING

4-4.

The following table lists possible problems

operation of the Hose Tester and suggests remedial

which may be encountered in the

action.

TABLE 4-1. TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

REMEDY

No oil pressure

Low oil level in reservoir

Refill reservoir to sight

gage level (use oil con-

forming to MIL-H-5606

or MIL-H-82383)

Shop air supply interrupted

Check air source and

ensure 50 scfm at 100

psig

Air control valve

Open air control valve

(9, figure 2-1) partially closed

Air-operated pump (10) mal-

Refer to Paragraph 4-5

function

Low oil pressure

Air pressure regulator (3)

Reset air pressure reg-

not set correctly

ulator

Air pressure gage (7) mal-

Calibrate and adjust gage

function

Replace gage

4-4