TM 55-4920-328-13 2-60.  Removal of Engine from Test Trailer. Proceed as follows: NOTE Complete disassembly of certain engine accessories   assembled   during   engine preparation   is   not   required.      Specific instructions  for  removal  of  assembled parts   are   provided   in   the   text   when applicable. a.        Ensure    that    all    METS    system    power    is deenergized,  then  ensure  that  the  NI  and  NIIl  master control  units  and  the  water  brake  master  control  units are in the closed (aft) position. NOTE Cap or plug all open ports of components of the engine accessories at removal.    Reinstall  all  shipping  covers, caps,   and   plugs   on   the   engine,   when applicable. b.      Remove   the   three   overboard   drain   hose assemblies    from    the    containers    used    for    drainage. Dispose of the contents of the containers in accordance with Base Safety Officer directives. c.  Disconnect the six test trailer cable assemblies (W1  through  W6)  from  the  mating  connectors  on  the data  acquisition  assembly  (17,  figure  2-50).    Stow  the cable assemblies in the cable tray on the test trailer. NOTE The    following    steps    (d)    through    (g) provide  instructions  for  removal  of  the NI,    NIl,    and    throttle    linkages    in    the assembled condition, to facilitate reinstallation  at  the  next  engine  testing cycle. d.    Loosen  the  setscrew  (107)  and  remove  the arm  assembly  (106)  from  the  shaft  of  the  transmitter (155). e.  Detach the rod end (114) from the NI slave unit by   removing   the   cotter   pin   (117),   washer   (116),   and clevis pin (115).  Reinstall these parts in the rod end to facilitate reinstallation at the next testing cycle. f.  Remove the nut (154) and washer (153), then slide   the   linkage   arm   assembly   (120)   and   attached linkage off the engine fuel control stud. g.    Remove  the  nut  (152)  and  washer  (151)  to disengage  the  linkage  arm  assembly  (96)  from  the  NIl control  stud.    Remove  the  cotter  pin  (93),  washer  (92), and pin (91) to disengage the assembled parts from the NIIl  slave  unit.    Reinstall  the  attaching  parts  in  the  rod ends to facilitate reinstallation at the next testing cycle. h.  Disconnect the hose assembly (37, figure 2-51) from  the  portable  oil  unit  (31),  then  detach  the  coupler (40)  (on  the  opposite  end)  from  the  valved  nipple  (41) on the test trailer water system. i.    Disconnect  the  hose  assembly  (42)  from  the portable  oil  unit,  then  detach  the  coupler  (45)  (on  the opposite  end)  from  the  valved  nipple  (46)  on  the  test trailer water system. j.      Disconnect   the   hose   assemblies   from   the portable   oil   unit   and   from   the   water   brake   bearing lubrication connections. k.      Detach   the   hose   assembly   (58)   from   the valved nipple (59) on the test trailer water system.  Do not detach the hose assembly at the opposite end. I.    Detach  the  water  supply  hose  assembly  (17) from  the  half  coupling  (18)  on  the  test  trailer  and  from the supply manifold assembly (16). m.      Detach   the   return   manifold   assembly   (19) from the half coupling (20) on the test trailer. n.    Remove  the  oil  level  indicator  assembly  and attached    hose    assemblies    in    the    reverse    order    of installation specified in paragraph 2-59. o.    Loosen  the  eyebolt  handles  (15),  four  places, and disengage the latches (14) from the forward and aft axles of the engine test dolly assembly. p.    Attach  the  sling  assembly  (1)  as  specified  in paragraph     2-59,     observing     the     precautions     noted therein. q.  Connect the hook (8) to the sling assemI)ly (1) and    remove    the    assembled    engine,    mount    stand assembly  (2),  and  engine  test  dolly  assemi)ly  (5)  from the  test  trailer  deck  in  the  reverse  orcier  of  installation specified  in  paragraph  2-59,  ob.    serving  the  warning stipulated therein. r.    Remove  all  electrical  cable  assemblies  from the installed engine accessories. 2-218