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Phasing the rotary-wing system
g.   ENGINE OIL PRESS

TM-1-1520-240-MTF Army Model CH-47D Heilcopter (EIC:RCD) Manual
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TM 1-1520-240-MTF 4-17 NOTE Either engine may be started first. NOTE If engine does not reach 15% but exceeds 10% N1 (minimum) and has reached its maximum speed, initiate start, but monitor engine and PTIT for a possible hung start and/or excessive PTIT. 1-32. 1.  First engine — Start as follows: a.   L   FUEL   PUMP   MAIN   switches   —   ON. Check L FUEL PRESS caution capsule out. b.   XFEED  switch  —  OPEN.  Check  R  FUEL PRESS caution capsule out. c.   ENG COND lever — STOP. d.   ENG START switch — MTR. NOTE Avoid  motoring  in  excess  of  15  seconds  before moving  the  ENG  COND  lever  to  GND.  These excess periods can have a detrimental effect on starter reliability. e.   Motor engine to a minimum of 15% N1. Set ENG  COND  lever  —  GND;  ENG  START switch    to    START    immediately.    Check STARTER ON light on. f.   Release START switch to MTR prior to PTIT reaching   200_C.   When   N1   is   50%,   set START  switch  to  OFF.  Check  STARTER ON light out. CAUTION If no oil pressure is indicated during the start- ing sequence, shut down engine and investi- gate.







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