TM 5-3895-373-20 B. INSTALL. 1. INSTALL GAUGE PANEL COMPONENTS ONTO GAUGE PANEL. a. Install control handles (64) into gauge panel (21)   by   inserting   control   handles   through back   of   gauge   panel,   feeding   boot   (68) through gauge panel.  Install retaining plate (67)  over  boot,  aligning  holes  in  boot  with holes  in  gauge  panel.    Install  and  tighten collar  seals  (66)  and  pan  head  cap  screws (65).  Refer to legend and illustration. b. Install   high   temperature   manual   override button   (61)   through   back   of   gauge   panel (21).    Install  boot  (63)  and  turn  until  tight. Use   needlenose   pliers   to   tighten   hex   nut (62) from behind gauge panel. NOTE Throttle   control   switch   needs   to   be positioned  correctly  for  functions  to work. c. Install   spacer   rings   (57   through   60)   onto throttle  control  switch  (53).    Insert  throttle control switch through back of gauge panel (21).    Install  key  washer  (55  and  56),  and knob (54). d. Turn throttle control switch (53) to MAX and IDLE  settings  to  ensure  switch  is  correctly aligned  with  settings.    Loosen  knob  (54)  to turn and adjust switch positions as necessary.    Use  an  adjustable  wrench  to tighten knob when settings are correct. e. Install panel lamp unit (52) by pushing panel lamp   unit   into   mounting   hole   on   front   of gauge  panel  (21).    Orient  panel  lamp  units in the direction of illumination shown. NOTE Do not use  nameplate  furnished  with ignition switch. f. Install   hex   nut   (51)   and   lockwasher   (50) onto   ignition   switch   (48).      Install   ignition switch  through  back  of  gauge  panel  (21). Install  screw  cover  (49).    Use  a  flatblade screwdriver  and  a  hammer  to  carefully  tap notch   in   screw   cover   to   tighten    ignition switch.  Refer to legend and illustration. g. Install preformed packings (45) onto tachometer    and    voltmeter    (41    and    42). Insert   tachometer   and   voltmeter   through front  of  gauge  panel  (21)  and  secure  with mounting   clamps   (44)   and    knurled    nuts (43).    Plug  lamp  (47)  into  lampholder  (46). Install   lampholder   into   gauge.      Refer   to legend and illustration. h. Install preformed packings (38) onto gauges   (31   through   35).      Insert   gauges through    front    of    gauge    panel    (21)    and secure    with    mounting    clamps    (37)    and knurled   nuts   (36).      Plug   lamp   (40)   into lampholder   (39).      Install   lampholder   into gauge.  Refer to legend and illustration. i. Install    indicator    lights    (26,    27,    and    28) through  front  of  gauge  panel  (21).    Secure with    o-rings    (30)    and    lockwashers    (29). Refer to legend and illustration. NOTE Gauge panel (21) has tabs for correct positioning   of   switches   (15   through 20). j. Install    hex    nuts    (25)    onto    switches    (15 though 20).  Install switches through rear of gauge panel (21).  Install dust and moisture boots (24), lockwashers (23), and  hex  nuts (22).    Tighten  hex  nuts.    Refer  to  legend and illustration. k. Refer to wiring diagram and connect all wire harness terminals. GO TO NEXT PAGE 7-61