TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 205 of 828
TM 9–2350–311–20–2 Change 2 3–93 h. CAB LIGHTING SYSTEM — CONTINUED (3) M145/M145A1 TELESCOPE MOUNT AND M117/M117A2 PANORAMIC TELESCOPE LIGHTS ARE 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) Repair ground lead (para 8–3). 1. Check ground lead for good connection. 2. Place red multimeter lead in one socket and black lead in ground socket of wire 147B. 3. Check for voltage. Is battery voltage present? Replace wire 147B (para 8–3). yes no A yes no CONTINUED ON NEXT PAGE B WIRE 147B M145/M145A1 TELESCOPE MOUNT 1. Disconnect wire 147B at M145/M145A1 telescope mount. 2. Turn MASTER switch to ON. 3. Place red multimeter lead in each socket of wire 147B and black lead to ground. 4. Check for voltage. Is battery voltage present at one socket only? WIRE 147B – + + –