TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 1-14 LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - CONTINUED 1-14.3 Location and Description of Cab Hydraulic Systems - Continued c. Rammer System. The rammer cylinder assembly (18) is a hydraulically operated device which is controlled by a hand- operated rammer actuating valve (19) on the cab roof. No electrical circuits are used in the rammer system. A blocking valve (20) prevents the rammer from being operated unless it is correctly alined with the firing chamber of the cannon. 1-18