TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 147 of 828
TM 9–2350–311–20–2 3–38 Change 2 3–3 TROUBLESHOOTING CHART — CONTINUED c. CAB TRAVERSING SYSTEM — CONTINUED (2) MANUAL TRAVERSE HANDWHEEL ROTATES WHILE TRAVERSING IN POWER. INITIAL SETUP Test Equipment Multimeter (item 6, Appx H) Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Equipment Condition Vehicle MASTER switch to OFF (TM 9–2350–311–10) CAB POWER switch to OFF (TM 9–2350–311–10) 1. Disconnect wire 819B at electric clutch housing (M109A2/M109A3 howitzers) or clutch valve (M109A4/M109A5 howitzers). 2. Turn MASTER and CAB POWER switches to ON and the TRAVERSE CONTROL switch to power. 3. Place red multimeter lead in wire 819B and black lead to ground. 4. Check for voltage. Is battery voltage present? Replace wire 819B (para 8–7). A yes no B yes no CLUTCH HOUSING WIRE 819B + – CONTINUED ON NEXT PAGE WIRE 819B CONNECTOR J2 CONNECTOR HARNESS SOCKET G CLUTCH VALVE + – + – M109A2/M109A3 HOWITZERS M109A4/M109A5 HOWITZERS WIRE 819B Go to step E for M109A2/ M109A3 howitzers or step F for M109A4/ M109A5 howitzers. 1. Turn MASTER and CAB POWER switches to OFF. 2. Disconnect harness from J2 connector at gunner’s selector switch box assembly. 3. Place one multimeter lead in wire 819B connector and other lead to socket G of J2 connector harness. 4. Check for continuity. Is continuity present?