ARMY TM 9-6115-464-34
AIR FORCE TO 35C2-3-445-2
NAVY NAVFAC P-8-624-34
3-42. HYDRAULIC SYSTEM FILTER ASSEMBLY.
a. Removal.
(1) Disconnect hydraulic lines (1, figure 3-35), and drain hydraulic fluid into a suitable container.
(2) Remove nuts (2), Iockwashers (3) and screws (4) to remove filter assembly.
(3) Do not remove screws (5), Iockwashers (6), nuts (7) and mounting bracket (8) unless inspection
reveals damage.
b. Disassembly.
(1) Remove Iockwire (9) and unscrew housing (10).
(2) Remove and discard filter element (11), backup ring (12), packing (13) and backup ring (14).
(3) Remove elbows (15), o-rings (16), washers (17) and nuts (18) from head assembly (19). Discard
o - r i n g s.
(4) Do not remove pressure relief valve (20).
c. Cleaning, Inspection, and Repair.
(1)
(2)
(3)
(4)
(5)
(6)
Clean all parts in dry cleaning solvent (Federal Specification P-D-680) and dry thoroughly with
filtered compressed air.
Visually inspect mounting bracket for cracks, breaks and corrosion.
Inspect housing for cracks, corrosion, and other damage.
Inspect head assembly for cracks, breaks, and corrosion. Check parts for deposits of foreign
material. Remove any deposits found.
Check all threads for crossing, stripping, and peening. Repair minor thread damage with a thread
chaser.
Replace any damaged or defective parts.
d. Assembly.
NOTE
Soak replacement filter element in oil conforming to Military Specification MIL-H-5606
to remove trapped air before installing.
(1) If removed, install pressure relief valve (20).
(2) Position head assembly (19), to install nuts (18), washers (17), new o-rings (16), and elbows (15).
(3) Install backup ring (14), packing (13), backup ring (12) and new filter element (11).
(4) Install housing (10) and Iock wire (9).
e. Installation.
(1) If removed, install mounting bracket (8, figure 3-35), nuts (7), Iockwashers (6) and screws (5).
(2) Position filter assembly to install screws (4), Iockwashers (3), and nuts (2).
(3) Connect hydraulic lines (1), and fill with hydraulic fluid.
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