APU START

FLIGHT CONTROL TRAVEL AND HYDRAULICS (FOR THUR FLIGHTS PERFORM STEPS 2 THUR 5 IN BOTH)

TM-1-1520-240-CL Army CH-47D Heilcopter (EIC:RCD) Manual
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TM 1-1520-240-CL P-4 c. EMERG REL ALL switch — OFF. Cover down. 19. HYD switches — Set as follows: a. PWR XFER switches — OFF. b. FLT CONTR switch — BOTH. c. BRK STEER switch — ON. Cover down d. RAMP PWR switch — ON. O e. RAMP EMER switch — HOLD. Cover down. APU START * 1. BATT switch — ON. F* 2. Fire guard — Posted. * 3. APU — Start as follows: a. APU switch — Run for 3 to 5 seconds. b. APU switch — Start for 2 seconds, then RUN. c. APU ON indicating light — Check on. * 4. UTIL HYD SYS caution — Check out within 30 seconds after APU ON light. CARGO HOOK OPERATIONAL CHECK 1. CARGO HOOK MSTR switch — ARM. 2. CARGO HOOK SEL switch — FWD. 3. CARGO HOOK RELEASE switch (pilot’s cyclic) — Press. 4. CARGO HOOK SEL switch — MID. 5. CARGO HOOK RELEASE switch (copilot’s cyclic) — Press. 6. CARGO HOOK SEL switch — AFT. F 7. CARGO HOOK switch on HOIST OPERATORS PANEL — ARM. F 8. CARGO HOOK RELEASE switch (WINCH/HOIST CONTROL GRIP) — PRESS.

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