TB 9-4910-744-30
s e c u r e lampholder junction boxes to bows
4.
Installation--Continued
with eight #10 x 1-in. tapping screws
(MS51861-49).
(11) Position 10 foot long, 2.75-
(6) Position four duplex junction
S e c u r e to gas engine generator set frame
using 24-in. retaining strap (7550588-
drill eight 0.12-in. diameter pilot
5).
h o l e s and secure duplex junction boxes
Follow steps (1)
m.
U n i t s 2 and 3.
to bows with eight #10 x 1-in. tapping
thru (14) below for electrical component
s c r e w s (MS51861-49).
installation.
( 7 ) Remove two knockout S lugs
NOTE
This procedure is written for
bows .
Install twelve box connectors
one unit.
( A p p l e t o n 15233) in the junction boxes
for total number of elec-
a n d install jam nuts on box connectors
trical components required
for units 2 and 3.
(8) Fabricate four power cable
(1) To provide sufficient head-
r o a n for personnel to work in the M35A2
a s s e m b l i e s (11021163, 11021164, 11021165,
a n d 11021166) using approximately 14
c a r g o trucks, raise the bows 18 inches
feet of flexible cord (6145-00-295-
to a total height of 78 inches in
Install four box connectors
0855).
drill ten 0.44-in. diameter holes
(Appleton 15233).
t h r o u g h bow sockets and bows.
assembly construction, and install in
(2) Secure bows in place with ten
7 / 1 6 - x 1-3/8-in. hex head capscrews
(9) Install 28 feet of flexible
( M S 3 5 3 3 8 - 4 7 ) , and ten 7/16-in. hex plain
junction boxes and lampholder junction
n u t s (MS51967-11).
b o x e s on second and fourth bows. Refer
(3) Position switch box (Square D
D 2 2 1 N R B ) on the two top slats in accord-
length of outside insulation from
Using holes of
flexible cord on inside of each junc-
switch box as a template, mark and drill
Strip 1 inch of insulation
tion box.
four 0.12-in. diameter pilot holes.
from each individual wire and twist
Secure switch box to truck slat with
wire to fit terminal lugs (MS20659-
four 1/4- x 1-in. tapping screws
Install and crimp terminal lugs
141).
(MS51861-69).
(10) Connect three wires to lamp-
a s s e m b l y (4910-00-800-1405) through box
h o l d e r (GE-5740-7) and secure to lamp-
c o n n e c t o r in bottom of switch box and
holder junction box (Appleton 40-3/4)
w i t h screws provided with lampholder
Repeat this step for
junction box.
remaining three lampholder junction
(5) Position four lampholder
boxes.
junction boxes (Appleton 40-3/4) on
i n n e r side of second and fourth bows as
eight 0.12-in. diameter pilot holes and
21