TM-9-2350-311-10

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

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 117 of 775

TM 9-2350-311-10

Item

No.

17

Interval

Before

Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

FOR M109 SELF-PROPELLED HOWITZER - CONTINUED

Location

Item to Check/

Service

Replenisher

Accumulator

Assembly

Pressure (Cont)

Crewmember

Procedure

CHIEF OF SECTION

b. Fill M3 oil gun (3) as follows:

1. Turn handle (4) of M3 oil gun (3) counter-

clockwise as far as it will go. Loosen locking

screw (5) on head (6) of M3 oil gun.

2. Unscrew and remove head (6) and handle

(4) as a unit from body (6.1). Be sure cap (7)

is on M3 oil gun (3).

Do not clean body of M3 oil gun with solvent.

3. Inspect inside of body (6.1) of M3 oil gun (3)

for cleanliness and clean as necessary.

4. With opening held upright and at an angle to

reduce air entering body (6.1), fill body of M3

oil gun (3) with hydraulic fluid (item 20, Appx

D).

5. Install head (6) and handle (4) as a unit, and

tighten locking screw (5).

6. With nozzle end of M3 oil gun (3) held up-

right, remove cap (7) from nozzle and allow

air to escape for a minute or two.

7. Purge remaining air from M3 oil gun (3) by

turning handle (4) until no more air bubbles

appear at nozzle.

Not Fully Mission

Capable If:

Change 2 2-31