TB 9-4940-319-30
4.
Installation - Continued
(3) Mark and drill sixteen 0.50-in.
to floor, using four 3/8- x 1-1/8-in. Hex head capscrews
diameter holes in floor in accordance with figure 3.
(MS90725-61) and four 3/8-in. lockwashers (MS35338-
Install sixteen 3/8-in. blind rivet nuts (S37B285).
46).
b. Fabricate two support angles (11021151-9)
(5) Position work table (4910-00-543-
7771) in right rear corner of 280 shelter in accordance
with figures 2 and 5. Mark and drill six 0.34-in. diameter
c. Follow steps (1) through (16) below for
holes through work table legs over installed floor-
equipment installation in the 280 shelter, unit 1.
mounted blind rivet nuts in accordance with figure 3.
Secure work table to floor, using six 5/16- x 1-1/8-in.
(1) Mark and drill four 0.41-in. diameter
machine bolts (MS90725-35) and six 5/16-in.
holes in the bottom frame of arc welding machine (3431-
lockwashers (MS35338-45).
00-903-5647). Position arc welding machine in front of
280 shelter in accordance with figure 2 over installed
(6) Position welding screen (3439-00-198-
floor-mounted, blind rivet nuts in accordance with figure
8348) between work table and right side wall in
3. Secure to
floor, using four 3/8- k
1-1/8-in. hex head
capscrews (MS90725-61) and four 3/8-in. lockwashers
(MS35338-46).
(7) Position utility grinding machine (3415-
00-517-7754) on work table in accordance with figures 2
(2) Position band saw (3405-00-517-
and 5. Using utility grinding machine base as a template,
0592) in right front end of 280 shelter in accordance with
mark and drill three 0.34-in. diameter holes through work
table top. Secure utility grinding machine to work table,
holes through band saw legs over installed floor-
using three 5/16- x 3-in. Machine bolts (MS90725-44),
mounted blind rivet nuts in accordance with figure 3.
three 5/16-in. Flat washers (MS27183-11), three 5/16-in.
Secure bandsaw to floor, using four 3/8- x 1-1/8-in. hex
head capscrews (MS90725-61) and four 3/8-in.
(MS51967-5).
lockwashers (MS35338-46).
(8) Position machinist's vise (5120-00-
(3) Position two compressed oxygen gas
293-1439) on work table in accordance with figures 2
and 5. Using machinist's vise base as a template, mark
and drill four 0.56-in. diameter holes through work table
top. Secure machinist's vise to work table top, using four
corner walls, using two 92-in. retaining straps (7550588-
1/2- x 3-in. hex head capscrews (MS90725-119), four
7).
1/2-in. flat washers (MS27183-17), four 1/2-in.
(4) Position welding table (3436-00-847-
(MS51967-14).
3772) against left middle wall in accordance with figures
2 and 4. Mark and drill four 0.41-in diameter holes in
(9) Position two compressed acetylene
welding table legs over installed floor-mounted blind rivet
nuts in accordance with figure 3. Secure welding table
9