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 116 of 775

TM 9-2350-311-10

Item

No.

17

lnternal

Before

Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

FOR M109 SELF-PROPELLED HOWITZER —

CONTINUED

Location

Item to Check/

Service

Replenisher

accumulator

Assembly

Pressure

Crewmember

Procedure

CHIEF OF SECTION

To prevent damage to equipment, make sure

M3 oil gun is loaded with hydraulic fluid (item

20, Appx D) and not lubricating oil.

NOTE

Replenisher accumulator assembly (1) pres-

sure gage (2) reading (before firing) should be

17 to 24 psi (117 to 165 kPa). Pressure may

increase during normal firing due to heat ex-

pansion. Safe-to-fire range is 17 to 50 psi (117

to 344 kPa).

During firing, be sure that replenisher accumulator

assembly (1) pressure gage (2) shows a pressure

of 17 to 50 psi (117 to 344 kPa). If pressure is lower

or higher, add or bleed hydraulic fluid from replen-

isher accumulator assembly. When replenisher ac-

cumulator assembly pressure gage reading

is low, add hydraulic fluid (item 20, Appx D) to the

replenisher accumulator assembly as follows:

a. Place cannon assembly at zero elevation.

Not Fully Mission

Capable If:

2-30