TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 361 of 828

TM 9–2350–311–20–2

Change 2

6–44.1

b.

Disassembly

NOTE

•

Filter assemblies do not have to be removed to replace filter elements. However, hydraulic sys-

tem must be discharged (para 6–3) and filter assemblies drained before filter elements are re-

moved.

•

Both filter elements are normally replaced at the same time.

•

There are three approved manufacturers for the filter assembly. The filter element is the only

part interchangeable between all the manufacturers. Identify the manufacturer to perform the

correct steps.

1

To disassemble Pall Land and Marine Corporation filter assembly (2):

(a)

Unscrew filter housing (18) from manifold (13).

(b)

Remove and discard filter element (19) and residual fluid.

(c)

Remove preformed packing (20) and packing retainer (21) from manifold (13). Discard preformed pack-

ing and packing retainer.

13

21

20

19

18

2