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Page 60
CHAPTER EIGHT
SECTION 8.6
MAST PLATE AND DOUBLE TRUSS (continued)
When leveling the boom, it is important to place the level at the correct place on the boom. We recommend
placing the edge of the level at the edge of the boom transition between the 2.25” section and the 2” sec-
tion as shown in
figure 8.67
. Arrange the sawhorses so that they are supporting at the 3” boom section on-
ly, meaning the rest of the boom is “floating”.
Using two adjustable wrenches, tighten each of the turnbuckles while holding the eye portion of the turn-
buckle from moving so that the Phillystran does not “wind up” as shown in
figure 8.68
. Repeat the process
for each truss portion until the boom is level.
When the boom has been leveled, it is necessary to secure the turnbuckles so that they cannot work loose.
Using leftover Phillystran, insert the end through they eyebolt, then through the body of the turnbuckle, and
then through the eyebolt on the other end. Insert back through the body, and then back through the origi-
nal eyebolt hole as shown in
figure 8.69
. Secure with electrical tape.
Figure 8.70
and
figure 8.71
show the completed Phillystran truss ends.
PHILLYSTRAN DOUBLE TRUSS INSTALLATION (continued)
FIG. 8.68
FIG. 8.67
FIG. 8.70
FIG. 8.71
FIG. 8.69
