TM 55-1520-240-23-6
7-217
TEST UTILITY RESERVOIR/COOLER (AVIM)
(Continued)
7-217
INTEGRITY PRESSURE TEST LOW-PRESSURE SIDE
1.
Connect test setup pressure hose (1) to reservoir
return port (2).
2.
Connect hand pump pressure hose (3) to
reservoir pressure port (4).
3.
Connect test setup return hose (5) to reservoir
supply port (6).
4.
Connect drain hose (7) hose reservoir bleed
relief valve (8).
5.
Close shutoff valve (9).
6.
Close shutoff valve (10).
7.
Open valve (9) and apply 5 to 20 psi to return
port (2) to fill reservoir (11). Open shutoff
valve (12) and hold bleed valve (13) open until
reservoir is free of air. Use cloths (E120) for
spilled fluid. Use gloves (E186).
8.
Close shutoff valve (12).
9.
Open valve (9) and apply 20 psi to return port
(2). Maintain pressure for 2 minutes.
10.
Check reservoir (11) for leaks. There shall be
no external leaks.
11.
Make sure valve (14) is closed and apply 2000
psi to pressure port (4).
12.
Close and open valve (9) to lower and raise
pressure at return port (2) from 120 to 0 psi
twice.
13.
Check reservoir (11) for leaks and smooth
operation of cylinder (15). There shall be no
leaks, erratic movement or sticking of cylinder.
14.
Repeat steps 12 and 13 twice, then go to step 15.
15.
Open valve (10) to reduce pressure at return port
(2) to 0 psi.
16.
Open valve (14) to reduce pressure at pressure
port (4) to 0 psi.
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