TM 5-6115-590-12 Table 3-1.  Operator/Crew Preventive Maintenance Checks and Services B - - Before Operation D - - During Operation A - - After Operation Equipment Will Be Item Interval Item to be Reported Not Ready No. B D A Inspected Procedures (RED) If: 1 Power plant, utility Walk around unit, look for loose con- nections, foreign material in makeup air doors, leaks, damage, and general condition (Fig.  2-10). a.  Grounding connection Look for loose or missing grounding cable (Fig.  2-9). b.  Fire extinguisher Check availability of extinguisher and proper pressure (Fig.  2-9). c.  External filter/separator Drain water before float ball reachesindi- cator mark (Fig.  4-18). d.  Fuel and water Insure that supply is adequate forantici- pated length of operation.  (Max.  con- sumption, fuel 35 GPH, water 540 GPH). 2 Control panel a.  Ammeter DC Shall indicate between 0 to 30 amps on Not indicating positive side of meter (Fig. 2-1). a charging current. b.  Exhaust temperature Shall not exceed 1225° (633°C) during Temperature steady state operation (Fig. 2-1).   exceeds 1260F (682C). Frequency meter (400 Hz) Shall indicate 40012 Hz (Fig.  2-8). Above or below 400 12 Hz. d.  Ammeter AC (400 Hz) Shall indicate applied current, not to ex- ceed 100% (Fig. 2-8). e.  Voltmeter AC (400 Hz) Shall indicate 1203 volts (Fig.  2-8). Above or below 120 3 volts. f.  Frequency meter (60 Hz). Shall indicate 602 Hz (Fig.  2-7). g.  Ammeter AC (60 Hz). Shall indicate applied current, not to ex- ceed 100% (Fig.  2-7). h.  Voltmeter AC (60 Hz). Shall indicate 1203 or 2406 Volts Above or (Fig.  2-7). below 120 or 2406 Volts. i.   Engine compartment drains Shall have no indication of fuel or oil There are leakings from the drains. Indications  of a fuel or oil leak. NOTE Drains are located in bottom of compart- ment under left side of enclosure (Fig.  1-2). Change 4 3-2