TM 55-1520-240-23-6
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TEST BRAKE TRANSFER VALVE (AVIM)
(Continued)
7-235
39.
Fill brake port (7) with hydraulic fluid (E199).
40.
Close shutoff valve (8).
41.
Disconnect hose (1) from CYL 1 port (2).
42.
Apply 10 psi pressure to CYL 2 port (5). Maintain
pressure for 3 minutes.
43.
Check CYL 1 port (2). Leaks shall not exceed 1
drop per minute.
44.
Apply 500 psi pressure to CYL 2 port (5).
Maintain pressure for 3 minutes.
45.
Check CYL 1 port (2). Leaks shall not exceed 1
drop per minute.
46.
Apply 1200 psi pressure to CYL 2 port (5).
Maintain pressure for 3 minutes.
47.
Check CYL 1 port (2). Leaks shall not exceed 1
drop per minute.
48.
Reduce pressure at CYL 2 port (5)to 0 psi.
49.
Insert nylon rod (17) into CYL 1 port (2) until it
touches end of poppet (18).
50.
Open shutoff valve (8).
51.
Slowly apply pressure to CYL 2 port (5) until
nylon rod (17) starts to move.
52.
Check pressure needed to start nylon rod (17)
moving. Pressure needed to start nylon rod
moving shall not exceed 12 psi.
53.
Reduce pressure at CYL 2 port (5) to 0 psi.
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