TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 160 of 828
TM 9–2350–311–20–2 Change 2 3–49 d. ELEVATING SYSTEM — CONTINUED (2) CANNON MOVES BY ONLY ONE CONTROL HANDLE, BUT MANUAL OPERATION IS NOR- MAL. INITIAL SETUP Test Equipment Multimeter (item 6, Appx H) Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Personnel Required 2 Equipment Condition Vehicle MASTER switch to OFF (TM 9–2350–311–10) CAB POWER switch to OFF (TM 9–2350–311–10) Place ELEVATION CONTROL switch in NO. 1 MAN position. Is battery voltage present? 1. Disconnect wire 623 from selector valve assembly solenoid. 2. Turn MASTER and CAB POWER switches to ON. 3. Place ELEVATION CONTROL switch in GUNNER position. 4. Place red multimeter lead in wire 623 and black lead to ground. 5. Check for voltage. Is battery voltage present? Go to step E. yes no yes no A SOLENOID WIRE 623 B CONTINUED ON NEXT PAGE Replace ELEVATION CON- TROL switch (para 8–12). + –