TB 9-3470-201-30
4.
Installation--Continued
Reposition the power distribution panel
and secure it to the wall using four pan
(22) Position portable tool box
head machine screws (MS35206-285).
Secure the nipple attached to the
circuit breaker to the power
portable tool box using one 48-in.
distribution panel using two 0.75-in.
retaining strap (7550588-3).
(23) Stencil letters A, B, and C
0.50-in. high on front of hinged
storage cabinet doors. Center within
(4) Mark and drill a 2.00-in.
0.12-in. using white enamel, color no.
diameter hole through inner wall of
27875 (TT-E-529) in accordance with
semitrailer and a 2.38-in. diameter hole
through outer wall of semitrailer in
(24) Apply black numbers, 0.50-in.
service entrance elbow (1495) to inner
high, to identification cards in ac-
wall of semitrailer using a 2.00- x 2.00
cordance with MIL-STD-130. Place
in. conduit nipple (5975-00-849-6702)
and a 2.00-in. locknut (5975-00-100-
identification cards in holders pro-
8776).
vided on the storage cabinets in
(5) Install plug, power entrance
(5935-00-670-7895) to outer wall of
d. Follow steps (1) thru (21) below
for installation of electrical
semitrailer using existing hardware in
components.
(1) Remove 0.75-in. diameter
(6) Install a 2.00- x 4.00-in.
knockout slug from lower left side wall
nipple (5975-00-057-6657) in the lower
of existing circuit breaker in accord-
right knockout hole of the power
distribution panel and secure with two
(2) Install 0.75- x 1.38-in. nipple
a 2.00-in. bushing (5975-00-100-/3709) in
Secure using two 0.75-in. locknuts
(7) Install one 2.00-in. conduit
4.00-in. nipple (5975-00-057-6657) and
secure with a 2.00-in. locknut
(3) Before installation of power
distribution panel, remove 0.75-in.
diameter knockout slug from middle right
(8) Connect the 2.00-in. conduit
side wall, 2.00-in. diameter knockout
slug from lower right side wall, and
outlet to the service entrance elbow
0.50-in. diameter knockout slug from
with 2.013-in. flexible metal conduit
upper left side wall of power distribu-
tion panel, Position the power distri-
two 2.00-in. conduit fittings (5340-O1-
bution panel on the semitrailer wall by
inserting the nipple, which is attached
NOTE
0.75-in. diameter hole. Using the power
distribution panel as a template, mark
sions for 050-in. rigid metal
and drill four 0.50-in. diameter holes
conduits.
through the inner wall of semitrailer.
Install four screw expansion sleeves
(5340-01-198-2494) in the wall.
12