TM 55-1520-240-23-6
7-20
TEST FILL MODULE (AVIM)
(Continued)
7-20
PUMP SHAFT LEAKAGE TEST
18.
Fill reservoir (8) with fluid (E199).
19.
Close valves (19 and 21). Open valves (17 and
20).
20.
Set handle (9) to position 1.
21.
Set relief valve (23) to open at 200 psi.
NOTE
For one stroke move handle fully in
and out.
22.
Operate handle (14) for 25 strokes. Collect
spilled fluid in container (13).
23.
Check shaft seal (24) for leaks. Leaks shall not
exceed 1 drop.
PUMP OUTPUT TEST
24.
Close valve (20). Open valve (21).
25.
Operate handle (14) until reservoir (8) is about
1/2 full. Collect spilled fluid in graduate (25).
Empty graduate. Use 500 cc graduate.
26.
Operate handle (14) 20 strokes in 24 seconds.
Collect spilled fluid in graduate (25). Fluid in
graduate shall be 340 cc’s minimum.
PUMP HANDLE TORQUE TEST
27.
Push handle (14) fully in. Attach scale (26) to
handle.
28.
Pull handle (14) with scale (26) at 90º to handle
shaft (27) through 1/2 stroke. Scale indication
shall not exceed 45 pounds.
29.
Remove scale (26).
30.
Close valve (21).
7-148
