strap (MS519561), conduit clamp back
4.
Installation--Continued
tapping screw (MS51861-49) in accordance
(9) Remove 0.50-in. diameter
knockout slug from top right side wall
of the power distribution panel. Secure
(13) Remove 0.50-in. diameter
0.50-in. rigid metal conduit (7551850-1 )
knockout slug from upper right side wall
to the power distribution panel using a
of junction box (4SSLD-1/2). Position
0.50-in. box connector (5975-00-100-
junction box on semitrailer wall in
8721). Drill two 0.12-in. diameter
pilot holes and secure 0.50-in. rigid
box as a template, mark and drill two
metal conduit (7551850-1) to the
0.12-in. diameter holes. Secure junction
semitrailer ceiling with two retaining
box to the wall using two #10 x 1-in.
straps (MS51956-1), two conduit clamp
tapping screws (11S51861-49). Secure the
junction box (4SSLD-1/2) to 0.50-in.
1-in tapping screws (MS51861-49) in
rigid metal conduit (7551850-3) using
one 0.50-in. box connector (5975-00-100-
8721). Install single receptacle cover
(10) Attach 0.50-in. rigid metal
conduit (7551850-2) to 0.50-in. rigid
metal conduit (7551850-1) using a 0.50-
(14) Install 0.50- x 5.00-in.
nipple (5975-00-1158-2223) in knockout
Drill three 0.12-in. diameter pilot
slug hole in upper left side wall of
holes and secure 0.50-in. rigid metal
power distribution panel and secure with
conduit (7551850-2) to the semitrailer
two 0.50-in. locknuts (5975-00-100-
ceiling using three retaining straps
8775) and a 0.50-in. bushing (5975-00-
(MS51956-1), three conduit clamp backs
in. tapping screws (MS51861-49) in
(15) Remove two 0.50-in. diameter
knockout slugs from 60A/240V ac enclosed
switch box, one From the middle top wall
(11) Remove two 0.50-in. diameter
and one from the lower right side wall.
knockout slugs form 30A/240V ac
Position 60A/240V ac enclosed switch box
enclosed switch box, one from top wall,
on semitrailer wall in accordance with
one from bottom wall. Position 30A/240V
figure 6.
Using the
60A/240V ac
enclosed
ac enclosed switch box on semitrailer
switch box as a template, mark and drill
four 0.12-in. diameter holes. Secure the
the 30A/240V ac enclosed switch box as a
60A/240V ac enclosed switch box to the
template, mark and drill four 0.12-in.
wall using four #10 x 1-in. tapping
diameter pilot holes. Secure 30A/240V ac
screws (MS51861-49). Secure the 60A/240V
enclosed switch box to wall using four
ac switch box to the power distribution
#10 x 1-in. tapping screws (MS51861-49).
panel with two 0.50-in. locknuts (5975-
Secure 0.50-in. rigid metal conduit
00-100-8775) and a 0.50-in. bushing
(7551850-2) to top of 30A/240V ac
enclosed switch box using one 0.50-in.
(16) Secure 0.50-in. rigid metal
conduit (7551850-4) to the 60A/240V ac
(12) Install 0.50-in. rigid metal
enclosed switch box with a 0.50-in. box
conduit (7551850-3) to 30A/240V ac
enclosed switch box and secure with
three 0.12-in. diameter holes in
0.50-in. box connector (5975-00-100-
semitrailer ceiling in accordance with
8721). Drill a 0.12-in. diameter hole
and secure 0.50-in. rigid metal conduit
conduit to ceiling using three retaining
(7551850-3) to wall using retaining
13