TM 1-1520-238-23
7-356
7.91.
UTILITY HYDRAULIC ACCUMULATOR APU START CHECK VALVE REPLACEMENT
(AVIM) – continued
b. Install check valve (5) in manifold (2).
(1) Lubricate new packing (6) and two retainers
(7). Use clean hydraulic fluid (item 92,
App F).
(2) Install packing (6) and two retainers (7) on
valve (5).
(3) Install valve (5) in manifold (2).
(4) Fully seat valve (5) against plunger assembly
(8).
c. Install check valve plug (1) on manifold (2).
Torque plug to 275 INCH-POUNDS.
(1) Lubricate new packing (3) and two retainers
(4). Use clean hydraulic fluid (item 92,
App F).
(2) Install packing (3) and two retainers (4) on
plug (1).
(3) Lubricate threads of plug (1). Use clean
hydraulic fluid (item 92, App F).
(4) Install plug (1) on manifold (2). Use hexagon
screwdriver.
(5) Torque plug to 275 INCH-POUNDS. Use
hexagon screwdriver and torque wrench.
(6) Lockwire plug (1) to accumulator (2). Use
wire (item 226, App F).
d. Inspect (QA).
e. Perform utility hydraulic accumulator leak
check (para 7.93).
END OF TASK
M04-3658-5
5
7
6
7
2
8
M04-3658-6
1
4
3
4
2
