TM 55-4920-328-13 2-63.      Installation   of   Inlet   Fairing,   Torque   Tube Mount, and Torque Shaft. NOTE If the engine electrical control unit (ECU)  has  been  removed,  it  must be   reinstalled.      Refer   to   TM   55- 2840-248-23. a.      Attach   engine   sling   21C7081G02   as   directed   in TM55-2840-248-23. b.  Attach hook of a suitable hoist to lifting eye of sling. Be sure that lifting eye of sling is pinned in No.  4 hole (see figure 2-56). WARNING Lifting with Sling Lifting  or  hoisting  of  engine or   engine   parts   should   only be   performed   by   designated personnel. All    components    of    a    sling system  such  as  chain,  hook, links,    and    pins    should    be clearly marked with load capacity  rating.    Load  rating for    entire    system  should  be equal to load rating for weakest   component.      These load  ratings  should  never  be exceeded. Inspection     and     testing     for cracks and defects in components   of   sling   system should    be    performed    on    a regular basis. Use   only   pins,   hooks,   links, and  slings  recommended  for specific    engines    for    lifting. Do  not  shorten    chains  with knots, bolts, or other makeshift devices. Before   lifting,      balance   load. Alert  personnel  in  area  before lifting the load.  Only engine or engine part should be lifted. Sling    webs    made    of    nylon, polyester,     polypropylene,     or aluminum shall not be used in areas where caustics are handled. c.  Raise engine high enough to attach inlet fairing (4), torque tube mount (6), and torque shaft (9) as follows: (1) Remove  clip  (10).    Attach  clamp  (2)  loosely  to swirl  frame  flange  (1),  so  that  the  clamp  nut  is  at  9 o'clock position. (2) Place  inletfairing    (4)  onto  torque  tube  mount (6).  Leave inlet fairing loose. CAUTION While  inlet  fairing  (4)  is  loose  on torque    tube    mount    (6)    during installation,   it   must   be   held   in place by hand to prevent damage until secure. (3)  With second mechanic helping to keep parts in proper  position,  secure  inlet  fairing  (4)  and  torque  tube mount (6) to swirl frame flange (1). (4)  Align  torque  tube  mount  (6)  so  that  word  TOP (marked on flange of torque tube mount) is at 12 o'clock position. (5)  Support  torque  tube  mount  (6),  and  install  15 bolts (7).  Torque bolts to 55-70 inch-pounds. (6)  Slide     three     preformed     packings     (13)     onto grooves of torque shaft (9). Change 2 2-227