APU OPERATING INSTRUCTIONS USING BATTERY POWER

EXTERNAL POWER APPLICATION HYDRAULIC (UTILITY) continued - TM-1-1520-238-23-1_337

APU OPERATING INSTRUCTIONS USING BATTERY POWER continued - TM-1-1520-238-23-1_339

TM-1-1520-238-23-1 Helicopter Attack AH-64A Apache (NSN 1520-01-106-9519) (EIC: RHA) Manual
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TM 1-1520-238-23 Change 5 1-243 1.74. APU OPERATING INSTRUCTIONS – USING BATTERY POWER 1.74.1. Description This task covers: Operating Instructions. 1.74.2. Initial Setup Tools: Aircraft mechanic’s tool kit (item 376, App H) Personnel Required: 67R Attack Helicopter Repairer One person to assist References: TM 1-1270-476-20 TM 1-1520-238-T TM 1-5855-265-20 Equipment Conditions: Ref Condition 1.57 Helicopter safed 1.134 Maintenance headset con- nected TM 1-1520-238-T Fuel system – visual check completed 1.13 Aft fuel tank level checked 9.40 Battery connected CAUTION Only certified personnel are authorized to operate the APU. Failure to comply could result in equip- ment damage. 1.74.3. Operating Instructions a. Verify correct main transmission oil level right sight indicator (para 1.32). b. Verify correct primary hydraulic fluid level (para 1.34). c. Open access door RN5 (para 2.2). GO TO NEXT PAGE

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