TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 6-11. AIR BOX HEATER REPLACEMENT (Cont) IGNITION COIL a. Removal NOTE Remove wire (39) from air box heater during air box heater removal. (1) Disconnect wire (39) from ignition coil (12). NOTE Remove nut, Iockwasher, and harness leads from stud (16) and remove connector (11) from coil (12) during pump and motor assembly removal. (2) Remove Iockwasher (55), flat washer (56), ignition coil (12) with tension clip (57), and spacer (58) from stud (16). Discard Iockwasher. (3) Remove ignition coil (12) from tension clip (57). (4) If necessary, remove stud (16) from cylinder head. c. Cleaning/Inspection ● ● (1) (2) WARNING Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and gloves and use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes and don’t breathe vapors. Do not use near open frames or excessive heat. The flash point is 100°F- 138°F (38 o C-50 o C). If you become dizzy while using cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes is made, wash your eyes with water and get medical aid immediately. Compressed air used for cleaning purposes will not exceed 30 PSI. Use only with effective chip guarding and personal protective equipment (goggles/shield, gloves, etc). Clean outside surface of ignition coil with cleaning solvent and dry with compressed air. Inspect ignition coil for cracks, oil seepage, or damage to electrical connectors. e. Test/Adjustment (1) Connect wire (39) to ignition coil (12) and terminal nut pin (40) on air box heater assembly (42). (2) Connect air box heater assembly (42) to common ground. WARNING Do not touch ignition coil or air heater assembly while performing test. High voltage is present. Personal injury may result. 6-22