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TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download

Page 113 of 828

TM 9–2350–311–20–2 3–4 Change 2 3–2 QUICK GUIDE TO TROUBLESHOOTING — CONTINUED CAB HYDRAULIC SYSTEM – POWER PACK OPERATES CONTINUOUSLY WHEN CAB POWER Continued AND MASTER SWITCHES ARE ON. 3–3e. (5) MAIN ACCUMULATOR WILL NOT HOLD DRY NITROGEN CHARGE. Notify support maintenance. GUNNER’S OR ASSISTANT GUNNER’S CONTROL HANDLE DOES NOT RETURN TO NEUTRAL POSITION WHEN RELEASED. 3–3e. (6) RAMMER HYDRAULIC RAMMER DOES NOT OPERATE. 3–3f. (1) SYSTEM CAB POWER SYSTEM ALL CAB ELECTRICAL COMPONENTS FAIL TO OPERATE. 3–3g. (1) CAB ELECTRICAL COMPONENTS OPERATE NORMALLY, BUT CAB POWER INDICATOR LIGHT DOES NOT ILLUMINATE. 3–3g. (2) CAB LIGHTING SYSTEM ONE OR MORE DOME LIGHTS ARE OUT, BUT SIGHTING EQUIPMENT LIGHTS OPERATE. 3–3h. (1) M118A2/M118A3 ELBOW TELESCOPE LIGHT IS OUT, BUT ALL OTHER LIGHTS OPERATE. 3–3h. (2) M145/M145A1 TELESCOPE MOUNT AND M117/M117A2 PANORAMIC TELESCOPE LIGHTS ARE OUT, BUT ALL OTHER LIGHTS OPERATE. 3–3h. (3) M15 ELEVATION QUADRANT LIGHT IS OUT, BUT ALL OTHER LIGHTS OPERATE. 3–3h. (4) ALL CAB LIGHTS ARE OUT. 3–3h. (5) INTERCOMMUNICATION INTERCOMMUNICATION SYSTEM WILL NOT 3–3i. (1) SYSTEM OPERATE. AMPLIFIER AM1780/VRC DOES NOT KEY WHEN MIC BUTTON IS PUSHED. 3–3i. (2) DRIVER CANNOT COMMUNICATE. 3–3i. (3) OPERATOR CANNOT COMMUNICATE AT GUNNER’S OR COMMANDER’S CONTROL BOX. 3–3i. (4) TELEPHONE OPERATOR CANNOT COMMUNICATE. 3–3i. (5) NBC SYSTEM CIRCUIT NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT DOES NOT ILLUMINATE, BUT NBC SYSTEM OPERATES. 3–3j. (1) NBC SYSTEM DOES NOT OPERATE. 3–3j. (2) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT M2A2 AIR PURIFIER DOES NOT OPERATE. 3–3j. (3) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT GUNNER’S M3 ELECTRICAL AIR HEATER DOES NOT OPERATE. 3–3j. (4) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT CANNONEER NO. 1’S M3 ELECTRICAL AIR HEATER DOES NOT OPERATE. 3–3j. (5) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT SECTION CHIEF’S M3 ELECTRICAL AIR HEATER DOES NOT OPERATE. 3–3 (6) NBC CONTROL BOX ASSEMBLY INDICATOR LIGHT ILLUMINATES, BUT ASSISTANT GUNNER’S M3 ELECTRICAL AIR HEATER DOES NOT OPERATE. 3–3j. (7)