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PNEUMATIC MAST WITH REMOTE LOCKING SYSTEM
OPERATING INSTRUCTIONS
TP-5580101-A
FEBRUARY 2022
12. If guy lines are used, properly secure and tension the guy lines immediately after raising the
mast. All guy lines should be equally tensioned. Beginning at two locations opposite each
other, gradually tension each guy line. Vertical alignment of the mast is accomplished by
observing the mast perpendicularly to the two guy lines being tensioned to ensure the mast is
standing straight, and is not bending too far towards one side (Figure 6-3). Adjust the
appropriate guy line as necessary to keep the mast plumb vertically. Check one day after
initial install. Check periodically afterwards.
Figure 6-3 Vertically Align the Mast (Single Level Guying Shown)
13. Open the drain cock for prolonged deployment to release air pressure and allow for drainage
of water which may enter the mast. The drain cock shall be opened while a locking mast is
deployed and depressurized to drain water.
Note: When leaving a mast partially extended in potentially freezing conditions, follow the
Weatherizing Instructions for Pneumatic Masts
(TP-4744301).
Correct
Incorrect
Mast
Guy Lines
Ground
Summary of Contents for 10-60 HDL
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