TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–63 e. CAB HYDRAULIC SYSTEM — CONTINUED (1) POWER PACK HYDRAULIC PUMP MOTOR DOES NOT OPERATE, BUT CAB LIGHTING SYSTEM OPERATES NORMALLY. INITIAL SETUP Test Equipment Multimeter (item 6, Appx H) Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) References TM 9–2350–311–20–1 Equipment Condition Vehicle MASTER switch to ON (TM 9–2350–311–10) CAB POWER switch to ON (TM 9–2350–311–10) 1. Turn MASTER and CAB POWER switches to OFF. 2. Open gunner’s selector switch box assembly. 3. Disconnect harness at J2 connector of gunner’s selector switch box assembly. 4. Place one multimeter lead on CAB POWER switch output terminal 2 and other lead to J2 connector pin E. 5. Check for continuity. Is continuity present? Replace or repair wire from J2 connector pin E to CAB POWER switch (para 8–12). Troubleshoot cab power system (para 3–3g.). Push “press to test” CAB POWER indicator light. Does CAB POWER indicator light illuminate? A yes no B yes no CONTINUED ON NEXT PAGE – + J2 CONNECTOR PIN E CAB POWER INDICATOR LIGHT OUTPUT TERMINAL GUNNER’S SELECTOR SWITCH BOX ASSEMBLY CAB POWER SWITCH