TM 55-1520-240-23-6
7-20
TEST FILL MODULE (AVIM)
(Continued)
7-20
INTEGRITY PRESSURE AND EXTERNAL LEAKAGE
TEST
1.
Clamp support fixture (1) in vise (2).
2.
Position module (3) on fixture (1). Install three
washers (4), three bolts (5), and one nut (6).
3.
Open cap (7) and fill reservoir (8) with hydraulic
fluid (E199). Close cap. Wear gloves (E186).
4.
Set valve handle (9) to position 1. Install bleed
fitting (10) in port C1 (11).
5.
Connect hose (12) to fitting (10). Insert end of
hose in container (13) of fluid (E199).
6.
Operate pump handle (14) until flow from hose
(12) is air free.
7.
Repeat steps 4 thru 6 with handle (9) at position
2, then 3, and fitting (10) installed in port C2 (15),
then port C3 (16), respectively.
8.
Remove hose (12) and fitting (10).
9.
Open cap (7) and fill reservoir (8) with hydraulic
fluid (E199). Close cap.
10.
Connect No. 1 test setup to module (3). Connect
valve (17) to port C1 (11), valve (18) to port C2
(15), and valve (19) to port C3 (16).
11.
Set handle (9) to postion 1.
12.
Close valves (18, 19, 20, and 21). Open valve
(17).
13.
Operate handle (14) until gage (22) indicates 300
to 330 psi. Maintain pressure for 2 minutes.
14.
Check for external leaks. Leaks shall not exceed
1 drop.
15.
Release pressure. Open valve (21). Collect
spilled fluid in container (13).
16.
Repeat steps 11 thru 15, setting handle (9) to
position 2, and closing valves (17 and 21) and
open valve (18).
17.
Repeat steps 11 thru 15, setting handle (9) to
position 3, and closing valves (18 and 21), and
opening valve (19).
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