TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–39 1. Reconnect wire 819B at electric clutch housing (M109A2/M109A3 howitzers) or clutch valve (M109A4/M109A5 howitzers). 2. Open gunner’s selector switch box assembly. 3. Place one multimeter lead at TRAVERSE CONTROL switch output terminal 6 and other lead to pin G of J2 connector. 4. Check for continuity. Is continuity present? 1. Reconnect harness at J2 connector of gunner’s selector switch box assembly. 2. Turn MASTER and CAB POWER switches to ON. 3. Place red multimeter lead at TRAVERSE CONTROL switch input terminal 5 and black lead to ground. 4. Check for voltage. Is battery voltage present? C yes no D CONTINUED FROM STEP B OUTPUT TERMINAL + – + TRAVERSE CONTROL SWITCH GUNNER’S SELECTOR SWITCH BOX ASSEMBLY J2 CONNECTOR PIN G CONTINUED ON NEXT PAGE INPUT TERMINAL GUNNER’S SELECTOR SWITCH BOX ASSEMBLY CAB POWER SWITCH TRAVERSE CONTROL SWITCH Replace wire from TRAV- ERSE CONTROL switch to pin G of J2 connector (para 8–12). – + Replace wire from TRAV- ERSE CONTROL switch to ELEVATION CONTROL switch (para 8–12). Replace TRAVERSE CON- TROL switch (para 8–12). yes no