TM 55-4920-328-13 NOTE All  auxiliary  services  and  all  electrical  systems must be energized, and the power supplies must be   stabilized   prior   to   accomplishment   of   the following procedures. a.    For  all  engines  being  tested,  verify  that  the  travel  of the NI fuel control lever conforms to the value specified in the   applicable   technical   manual.   (Indication   of   NI   fuel control    lever    travel    is    displayed    on    the    THROTTLE POSITION   indicator   M2   (8,   figure   1-24)   on   operator's panel   assembly   3A3.)   If   the   travel   of   the   lever   and corresponding    indication    are    not    within    the    specified limits,  ad-  just  the  installation  of  the  engine  accessories link- age to obtain the specified travel and corresponding readout. b.  Check to ensure that all master control units are fully closed (pulled to the limit of travel to- ward the front edge of the writing surface). c.    For  engine  accessories  which  contain  link-  age  parts required  to  connect  the  hydraulic  control  subsystem  and monitor inlet guide vane position, verify the IGV position displayed  on  the  IGV  ACTUATOR  ARM  indicator  M2  (3) on operator's panel assembly 3A1 (1).  If required, adjust the  travel  of  the  actuator  arm  to  provide  the  specified indication,     using     the     procedures     contained     in     the applicable technical manual. NOTE Refer to the applicable procedures contained in chapter 3 for information on starting or cranking a  gas  turbine  engine  equipped  with  a  hydraulic starter. d.    Depress  the  ENGINE  FUEL  SOLENOID  switchlight (30),  then  depress  the  START  switch  (31)  to  crank  the engine to the applicable percent of NI speed as noted on the  GAS  PRODUCER  meter  (4).    During  the  cranking cycle, observe the following conditions: (1)  Note  that  the  GAS  PRODUCER  meter  (4)  and  the POWER  TURBINE  meter  (5)  indicate  proper  rotation  of each pointer on the dial. CAUTION A low level warning Indicated by flashing of the ENGINE  LOW  OIL  LEVEL  indicator  (17,  figure 1-25)   must   not   be   ignored.      If   an   alarm   Is evident,   oil   must   be   added   to   the   applicable system.  Add the specified lubricating oil to the Integral   oil   tank   on   the   T55,   T74,   or   T700 engine, as applicable.  Add oil to the test trailer lubricating  oil  unit  (6,  figure  1-12)  when  testing other engines. (2)   Note   that   the   ENGINE   LOW   FUEL   PRES-   SURE indicator (14A, figure 1-25) flashes on and off and that the audible    alarm    assembly    sounds    continuously.        (The audible  alarm  may  be  silenced  by  depressing  the  ACK switchlight unit (25) so that unusual engine noises may be heard.)   Note   that,   as   engine   fuel   pressure   rises,   the indicator ceases to flash on and off. CAUTION A   low   oil   pressure   warning   indicated   by flashing of the ENGINE LOW OIL PRESSURE indicator  (11)  must  not  be  Ignored.    If  an audible  alarm  Is  evident,  check  the  engine lubricating  system  for  leaks.    If  necessary troubleshoot the electrical system in accordance with chapter 5. (3)  Note  the  ENGINE  LOW  OIL  PRES-  SURE  indicator (11)   flashes   on   and   off   and   that   the   audible   alarm assembly sounds continuously. The audible alarm may be silenced by depressing the ACK switchlight unit (25). (4)  Visually  check  the  engine  fuel  and  oil  sup-  ply  hose connections  for  evidence  of  leakage.  Tighten  all  fittings associated with leakage. NOTE The  following  step  is  not  applicable  to  engines equipped   with   a   hydraulic   start   system.      The amount of noise and vibration developed by the hydraulic    start    system    gasoline    engine    will preclude  the  detection  of  vibration  or  excessive noise. e.    Depress  the  ENGINE  FUEL  SOLENOID  switchlight (30, figure 1-24) a second time, then release the START switch (31) at the specified Change2       2-53