TM 10-5410-228-24
(8)
Install fitting (23) on piston pump (7). Ensure O-ring (28) is properly seated and is not pinched.
NOTE
Bolts and lockwashers supplied with flange halves.
(9) Secure two flange halves (26) to piston pump (7) with four bolts (24) and four lockwashers (25).
(10) Torque four bolts (24) in diagonal sequence in small increments to 488 62 in.-lb (41 5 ft-lb).
(11) Torque fitting (23) to 1,680 90 in.-lb (140 8 ft-lb).
(12) Using jack, carefully raise auxiliary power pack until in proper position. Secure the interior frame
assembly (17) of auxiliary power pack to the exterior frame assembly (20) with 24 bolts (18) and
24 new self-locking nuts (19) (Item 42, Appx E).
(13) Install new O-ring (9) (Item 50, Appx E) on elbow (6). Lubricate O-ring (9) with small amount of
hydraulic fluid.
(14) Install elbow (6) on piston pump (7). Ensure that O-ring (9) is properly seated and is not pinched.
Tighten elbow (6) until finger tight.
(15) Torque elbow (6) to 190 10 in.-lb (16 1 ft-lb).
(16) Install new O-ring (8) (Item 61, Appx E) on elbow (6). Lubricate O-ring (8) with small amount of
hydraulic fluid.
(17) Connect hose assembly (5) to elbow (6). Ensure that O-ring (8) is properly seated and is not
pinched. Tighten nut on hose assembly (5) until finger tight.
(18) Torque nut on hose assembly (5) to 220 10 in.-lb (18 1 ft-lb).
(19) Install new O-ring (30) (Item 49, Appx E) on elbow (11). Lubricate O-ring (30) with small amount
of hydraulic fluid.
(20) Connect hose assembly (10) to elbow (11) on piston pump (7). Ensure that O-ring (30) is properly
seated and is not pinched. Tighten nut on hose assembly (10) until finger tight.
(21) Torque nut on hose assembly (10) to 480 25 in.-lb (40 2 ft-lb).
(22) Install new O-ring (16) (Item 53, Appx E) on hose assembly (15). Lubricate O-ring (16) with small
amount of hydraulic fluid.
NOTE
Bolts and lockwashers supplied with flange halves.
(23) Secure hose assembly (15) and two flange halves (14) to piston pump (7) with four bolts (12) and
four lockwashers (13). Ensure that O-ring (16) is properly seated and is not pinched.
(24) Torque four bolts (12) in diagonal sequence in small increments to 300 50 in.-lb (25 4.5 ft-lb).
(25) Open shut off valve (3) on hydraulic line in ECV wheel well.
(26) Open shut off valve (4) to primary hydraulic pump per para 2.14.3.
(27) Close and secure cover (1) with latch (2).
e. Prime Hydraulic Pump (Refer to Figure 3-2)
NOTE
Hydraulic pump must be primed when a new pump is being installed. If pump is being
reinstalled, priming is not required as long as fluid has not drained out of pump.
(1)
Fill 1/2 inch port case drain on piston pump (7) with hydraulic fluid. Fill until case drain
overflows. Hose assembly (10) and elbow (11) have to be removed from case drain port when filling
piston pump (7).
