TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 207 of 828
TM 9–2350–311–20–2 Change 2 3–95 h. CAB LIGHTING SYSTEM — CONTINUED (4) M15 ELEVATION QUADRANT LIGHT IS OUT, BUT ALL OTHER LIGHTS OPERATE. 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) 1. Disconnect wire 147C at M15 quadrant. 2. Turn MASTER switch to ON. 3. Place red multimeter lead in each socket of wire 147C and black lead to ground. 4. Check for voltage. Is battery voltage present at one socket only? 1. Check ground lead for good connection. 2. Place red multimeter lead in one socket connector and black lead in ground socket of wire 147C. 3. Check for voltage. Is battery voltage present? yes no A yes no CONTINUED ON NEXT PAGE B Replace wire 147C (para 8–3). Repair ground lead (para 8–3). WIRE 147C WIRE 147C + – M15 QUADRANT + –