TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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