TM 10-5410-228-24
3.9.20 Hydraulic Reservoir Replacement Continued.
(11) Secure new gasket (45) and tank top cover (44) to hydraulic reservoir (3) with ten screws (41),
ten new lockwashers (42) (Item 17, Appx E) and ten flat washers (43).
(12) Connect return pipe (40) to filter assembly (8).
(13) Remove protective cover from hydraulic reservoir (3).
(14) Position new gasket (39) on hydraulic reservoir (3).
(15) Secure filter assembly (8) to hydraulic reservoir (3) with two screws (36), two new lockwashers
(37) (Item 19, Appx E) and two flat washers (38).
(16) Install new O-ring (35) (Item 85, Appx E) on adapter (34).
(17) Lubricate O-ring (35) with a light coating of hydraulic fluid.
(18) Remove plugs from ports on filter assembly (8).
(19) Coat male threads on adapter (34) with hydraulic sealant, and coat mating female threads in
filter assembly (8) with primer.
(20) Install adapter (34) in filter assembly (8). Torque adapter (34) to two to three TFFT.
(21) Coat male threads on elbow (33) with hydraulic sealant, and coat mating female threads in
adapter (34) with primer.
(22) Install elbow (33) in adapter (34). Torque elbow (33) to 2 to 3 TFFT. Adjust position of elbow (33)
as necessary.
(23) Coat male threads of differential pressure switch (22) with hydraulic sealant, and coat the
mating female threads in elbow (33) with primer.
(24) Install differential pressure switch (22) in elbow (33). Torque differential pressure switch to 2-3
TFFT.
d. Installation (Refer to Figure 3-25)
The reservoir assembly is heavy. To prevent injury to personnel, two people are required to
remove or install it in the ECU.
Install three electro-optical sensors on hydraulic reservoir after installing hydraulic reservoir
inside ECU enclosure. Electro-optical sensors may break off during installation of hydraulic
reservoir.
(1) Secure hydraulic reservoir (3) and four shims (32) to bottom of ECU enclosure with four screws
(29), four new lockwashers (30) (Item 18, Appx E) and four flat washers (31).
(2) Secure hydraulic reservoir (3) to ECU enclosure with fourteen screws (26), fourteen new
lockwashers (27) (Item 18, Appx E) and fourteen flat washers (28).
(3) Wrap male threads on three electro-optical sensors (25) with tape (Item 23, Appx C) and thread
the three electro-optical sensors (25) into their mounting holes in the hydraulic reservoir (3).
Torque sensors minimum 110 in.-lb (12.4 NM); maximum 120 in.-lb (13.5 NM).
(4) Connect leads (24) to three electro-optical sensors (25) on hydraulic reservoir (3). Remove tags
from leads (24).
(5) Connect electrical connector (23) to thermal immersion switch (52) in hydraulic reservoir (3).
(6)
Connect leads (21) to differential pressure switch (22). Remove tags from leads (21).
