TM 9-1220-238-14
the two scale assembly brackets from the foam inserts
socket "A," (fig. 1-1), located directly opposite the
mounted on top of the platform. If one man is to
vernier bracket assembly, and adjacent to either of the
operate the board plotting, secure the one man bracket
handles. When the first leg is in place, the second man
assembly to the support assembly 180 degrees away
returns to the chest, obtains the two remaining legs, and
from the vernier bracket assembly, and the rest bracket
inserts them in the proper support assembly sockets.
90 degrees clockwise from the vernier bracket assembly
Tighten the support wing screws (fig. 1-1) in the leg
as shown in fig. 2-1. Secure both bracket assemblies
sockets to secure the legs in the support assembly.
with the thumbscrews provided. If two men are to
f. Loosen the clamps wingscrews (fig. 1-1) in the
operate the plotting board, install the two-man bracket
blocks of the brace. Lower the brace from the stowed
on the vernier bracket assembly and the rest bracket 90
position on the leg socket extensions until the brace
degrees counter clockwise from the vernier bracket
sleeves seat on the bottom flanges of the leg plate
assembly, utilizing the thumbscrews provided with each
Tighten the three clamps wingscrews to secure the
bracket (fig. 2-2) Leave the unused bracket stowed
brace in the operating position.
within the foam insert on the chest platform.
g. Remove the rest bracket assembly and either of
Figure 2.1 Board plotting M18 one-man operation
2-2
