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TM-9-2350-311-34-1 Maintenance Manual for Volume 1 M109 Hull Download

Page 52 of 352

TM 9-2350-311-34-1 3-3 TROUBLESHOOTING CHART — CONTINUED f. BILGE PUMP (1) PUMP DOES NOT OPERATE WHEN MASTER SWITCH AND BILGE PUMP SWITCH ARE IN ON POSITION D isassemble bilge pump and check brushes for damage or excessive wear (para 9-2). Are brushes damaged or excessively worn? Replace damaged or worn brushes and verify that problem is solved (para 9-2). Check field coil and rotor assembly for shorts (para 9-2). I Do field coil and rotor assembly short out? Replace field coil and rotor assembly (para 9-2). END OF TASK 3-12