TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 190 of 828
TM 9–2350–311–20–2 Change 2 3–79 f. RAMMER HYDRAULIC SYSTEM — CONTINUED (1) RAMMER DOES NOT OPERATE. INITIAL SETUP Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Equipment Condition Vehicle MASTER switch to ON (TM 9–2350–311–10) CAB POWER switch to ON (TM 9–2350–311–10) Replace actuating valve (para 7–4). 1. Stow rammer. 2. Slowly operate actuating valve repeatedly, observing rammer, rammer hoses, and pressure gage. Is hydraulic pressure increase evident in rammer and hoses while hydraulic pressure drops slightly? yes no A yes no Troubleshoot cab hydraulic system (para 3–3e.). B yes no Adjust blocking valve (para 7–3). Is malfunction corrected? Return to normal operation. CONTINUED ON NEXT PAGE C Check hydraulic pressure at pressure gage (TM 9-2350-311-10). Is hydraulic pressure normal? ACTUATING VALVE RAMMER CYLINDER HOSES, TUBES, AND FITTINGS BLOCKING VALVE