TM 55-1520-240-23-6
7-177
TEST ACCUMULATORS (60910, HP1323100, OR AD-B130-7-177 1D390)
(AVIM)
(Continued)
7-177
8.
Connect fluid port (9) of test block (8) to test
setup (10) as shown.
9.
Connect valve (11) to bleed port (12) of test
block (8).
10.
Close valves (11, 13, 14, and 15).
11.
Apply 4500 psi pressure to port (9). Adjust
valve (16) for 4500 psi on gage (17). Maintain
pressure for 2 minutes.
12.
Check accumulator (3) for leakage. There shall
be no leakage.
13.
Release pressure to 0 psi on gage (17). Close
valve (16). Open valve (15).
14.
Close valve (15).
15.
Repeat steps 11 thru 14. Then perform step 16.
FLUID LEAK TEST
16.
Open valve (14). Apply 2 psi pressure to port
(9). Adjust valve (16) for 2 psi on gage (23).
Maintain pressure for 30 minutes.
17.
Check for leakage at port (2). Leakage at port (2)
shall be insufficient to form a drop.
18.
Release pressure to 0 psi on gage (23). Close
valve (16). Open valve (15).
19.
Close valves (14 and 15).
20.
Apply 3000 psi pressure to port (9). Adjust
valve (16) for 3000 psi on gage (17). Maintain
pressure for 3 minutes.
21.
Check for leaks at port (2). Leakage at port (2)
shall be insufficient to form a drop.
22.
Release pressure to 0 psi on gage (17). Close
valve (16). Open valve (15).
23.
Disconnect test setup (10) from port (9).
7-736
