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 113 of 775

TM 9-2350-311-10

Item

No.

15

Interval

Before

Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

FOR M109 SELF-PROPELLED HOWITZER — CONTINUED

Location

Item to Check/

Service

Hydraulic

Power Pack

Reservoir

Crewmember

Procedure

CHIEF OF SECTION

Before firing, check fluid level in sight gage (1). If

pressure gage (2) reads between 925 and 1225

psi (6378 and 8446 kPa), the system is fully

charged and fluid level should be at the FULL AF-

TER PUMPING mark (3) on power pack gage (4).

Add hydraulic fluid (item 20, Appx D) to power pack

reservoir, if needed, and check fluid level again on

power pack gage. Hydraulic fluid should be up to

FULL AT 0 PRESSURE mark (5). If power pack

reservoir is over full, drain hydraulic fluid to proper

level according to the following instructions:

Not Fully Mission

Capable If:

2-27