TM 1-1520-238-23
7-485
7.125.
SDC TOTAL PRESSURE SENSE LINE FILTER AND SURGE VALVE PRESSURE FILTER
REMOVAL/INSTALLATION – continued
d. Install union (7) on reducer (9). Torque union
(7) to 100 INCH-POUNDS.
(1) Lubricate new packing (10). Use petrolatum
(item 138, App F).
(2) Install packing (10) on union (7).
(3) Lubricate threads of union (7). Use damping
fluid (item 69, App F).
(4) Hold reducer (9). Install union (7). Torque
union (7) to 100 INCH-POUNDS. Use torque
wrench.
e. Install hose (6) on union (7).
(1) Hold union (7). Install nut (8).
f. Install tube (1) on elbow (4) and reducer (5).
Torque nut (3) and nut (5) to 60 INCH-POUNDS.
(1) Hold elbow (4). Install nut (5). Torque to 60
INCH-POUNDS. Use torque wrench.
(2) Hold reducer (2). Install nut (3). Torque to 60
INCH-POUNDS. Use torque wrench.
g. Inspect (QA).
h. Perform pressurized air system maintenance
operational check (TM 1-1520-238-T).
i. Perform pressurized air system leak check
(para 7.115).
j. Unfold catwalk (para 2.83).
k. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
10
7
8
6
M04-3650-7
9
M04-3650-8
3
2
1
4
5
