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8-2-19.  Engine Ground Operation.
Figure 8-2-1.  Taxi Director and Blade Watcher Positions

TM-1-1520-240-10 Army CH-47D Heilcopter (EIC:RCD) Manual
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TM  1-1520-240-10            8-2-11 8-2-20.  Before Taxi WARNING Personnel injury or death may occur and damage to airframe and rotor systems will occur  if  the  forward  or  aft  rotor  blade droop stop(s) are missing or interposer(s) on the aft rotor head are not engaged. After engine run-up and before flight, or shut- down if flight is not conducted, the flight engineer will scan the ground in the imme- diate area of the aircraft for evidence of detached droop stops. CAUTION To prevent damage to the cargo hooks and structure, do not ground taxi over rough or uneven  terrain  with  the  forward  and  aft cargo hooks installed. * 1.   SWIVEL switch — As required. * 2.   AFCS switches — As required. * 3.   Cyclic Trim Indicators — CHECK GND posi- tion. O* 4.   M-130 or AN/ALE-47 safety pin — Remove and stow. F* 5.   Chocks — Removed and secured. F* 6.   Ramp and cabin door — As required. F* 7.   Crew,  passengers,  and  mission  equipment Check ready for taxi. O* 8.   HUD — Adjust brightness, mode, baromet- ric altitude, pitch and roll as necessary. F* 9.   Taxi director and blade watchers — Position as required (fig. 8-2-1). * 10.   PARKING BRAKE — As required. 8-2-21.  Taxiing. Refer to Aircrew Training Manual (ATM). * 1.   Brakes — Check pilot’s and copilot’s as re- quired. * 2.   POWER STEERING — Check as required. 8-2-22.  Before Hover. * 1.   SWIVEL switch — LOCK. * 2.   AFCS control panel — Set as required: NOTE The HIT/PAT check may be deferred to the hover check. F 3. 712 Health  Indicator  Test  (HIT)/ 714A Power Assurance Test (PAT) check — Per- form first flight of day. Refer to TM 55-1520-240-23 Task 4.2.2 ( Perform Power Assurance Test per the aircraft PAT Log instructions. * 4.   RRPM — Set as required.







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