TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9--2350--311--10 Change 6 3--3 3--3 MALFUNCTION INDEX — CONTINUED Troubleshooting Procedures Page PERSONNEL HEATER Personnel heater fails to operate; personnel heater smokes or bangs upon starting 3--7 .......... Heat output is too low 3--7 ............................................................... PERSONNEL HEATER (GLOBAL A20) NOTE The operator can troubleshoot the codes listed below when displayed in the diagnostic display window. If any other codes are displayed, notify unit maintenance. No personnel heater operation, no fault lamp operation, no diagnostic code display 3--8 .......... C3, Vent fan fault 3--8 ................................................................... E1, Low voltage 3--8 .................................................................... E3, Low burner air flow 3--8 .............................................................. F1, Ignition overtime 3--8 ................................................................ F2, Burner flameout 3--8.1 ................................................................. F3, Heat limit 3--8.1 ....................................................................... F4, Vent air overheat 3--8.1 ................................................................ F6, Inlet overheat, Vehicle ambient temperature is above 131_F (56_C) 3--8.1 .................... F7, Exhaust overheat 3--8.1 ............................................................... BILGE PUMP Bilge pump fails to operate 3--8.2 ........................................................... BREECH Breech does not close completely 3--8.2 ..................................................... CANNON Jerky recoil; excessive recoil force; excessive recoil travel at high angle of fire 3--9 .............. Primer does not fire 3--9 ................................................................. Primer not ejected properly 3--10 .......................................................... Cab fills with smoke or gases after firing 3--10 ............................................... Bore evacuator or muzzle brake thrust collar becomes loose 3--10 ............................. CAB TRAVERSING SYSTEM Cab will not traverse freely in manual mode 3--11 ............................................ Cab will not traverse freely in power mode 3--11 ............................................. Cab creeps 3--12 ........................................................................ Traversing mechanism assembly overheats 3--12 ............................................ ELEVATING SYSTEM Cannon does not elevate or depress under power or manually, but hydraulic pressure is normal 3--12 ........................................................................... Effort required to elevate cannon is greater or less than effort required to depress cannon 3--12 ....