Section IV.  REMOVAL  AND  INSTALLATION  OF  MAJOR  COMPONENTS 2-10. General. This  section  contains  instructions  for  removal  and installation  of  major  components  of  the  generator set to facilitate repair and overhaul procedures. Removal of assemblies and repair and overhaul in- structions  are  covered  in  subsequent  sections  of this  manual. 2-11.  Generator  Removal. See  figure  2-1  for  location  of  major  components. a. Disconnect the ground cable from the battery. — b. To remove the following refer to the Operator and  Organizational  Maintenance  Manual. (1)  Receptacle  panels  (as  required). (2) Manual speed control. (3) Fault indicator. (4) Control cubicle. (5) Rear grille. (6) Rear panels and doors. (7) Rear roof and corner posts. (8)  Main  load  contactor. (9) Load terminal board. (10) Reconnection board. (11)  Air  cleaner. c. See figure 6-2 for removal of main generator leads from current transformer assembly. Before removing  current  transformer  assembly,  tag  18 harness  wires  from  terminal  strip  and  identify  the leads  which  are  passed  through  the  current  trans- formers  more  than  once. d. See para 6-8 for removal of current trans- former assembly. e. On Class I sets only, remove the governor control unit and mounting bracket. (See para 7-3. ) f. Remove the relay table group. (See para 8-5.) g.  Remove  generator. See figure 2-2 and proceed as fOllOWS: (1) Position engine jacking supports on the engine  flywheel  housing.  Adjust  engine  jacking studs by hand until firm contact is established with skid  base. (2) Insert generator lifting eye bolt in top of generator housing and attach suitable lifting device. (3) Remove two screws and two flat washers and two lockwashers on each side of generator housing  near  forward  end  and  remove  access  cover and screen. (4) Remove 4 generator mounting screws, 8 washers and 4 nuts. (5) Adjust jacking studs to support the weight of the engine, approximately 1/2 turn beyond hand tight. (6)  Reaching  through  inspection  holes  in  gen- erator housing, bend lockstrips away from heads of eight fan-coupling screws securing generator coup- ling. Remove the screws to separate the engine and generator at the coupling. Removal of these screws also frees the fan. To facilitate access to the screws,  rotate  the  engine. (7) Reaching through inspection holes in for- ward end of generator, remove 12 rim coupling screws and washers around perimeter of flange mating  engine  to  flywheel  housing. 2-12.  Generator  Installation. a. Using a suitable lifting device, position main generator  mounting  pads  in  skid  base  and  line  up generator  mounting  flange  with  flywheel  housing. b. Install 12 screws and washers through gener- ator  front  flange  into  flywheel  housing.  Torque screws  to  35  foot-pounds. c. Reach through generator inspection holes, support fan to line up holes and install eight fan coupling screws each with a lockstrip. Before tightening make sure lockstrip extension is in small hole adjacent to threaded screw hole. Torque bolts to 110 foot-pounds. Bend  lockstrip  corners  against screw head flats. d. Install four main generator mounting screws and washers and secure with four nuts and 8 washers. Do not torque screws at this time. e.  Loosen  and  remove  engine  support  brackets. f.  Torque  generator  mounting  screws  to  440 foot-pounds. g. Install screen and access cover on generator and secure with two screws, two flat washers, and two lockwashers on each side. h. See figure 8-1 and install relay table group in reverse order of removal. 2-20 Change  3