HYDRAULIC TANK RETURN FILTER -706880612

TM 5-4210-233-14&P-1

4-189. HYDRAULIC TANK RETURN FILTER

THIS TASK COVERS:

Service

TOOLS REQUIRED

EQUIPMENT CONDITION

Tool Kit, General Mechanics, Automotive

Main Engine Shutdown (see para 2-12.)

(Appendix B, Section 1iI, Item 1)

APU Shutdown (see para 2-16.)

Batteries Disconnected (see para 4-114.)

MATERIALS/PARTS REQUIRED

Hydraulic Oil (Item 28, Appendix E)

O-ring (Figure 197, Appendix F)

a. Service.

(1) Remove filter (1) from filter head assembly (2).

Remove and discard O-ring (3).

(2) Apply a thin coat of hydraulic oil (Item 28,

Appendix E) to new O-ring (3).

(3) Install new filter (1) and O-ring (3) on filter head

assembly (2). Hand tighten filter 1/2 turn after

seal contacts filter head.

(4) Operate aerial ladder hydraulic system (see

para 2-14) and check for filter leakage. Tighten

filter slightly if leakage until it ceases.

4-483