75
fi g. 5.25
fi g. 5.26
fi g. 5.27
5 - MAST AND MAST TIES
Passing mast tie levels
The use of fall protection equipment is mandatory to handle operations when passing
tie levels. To safely pass mast tie levels, slide planks away from the front area of each
mast and open the mast tie doors. The use of shorter planks will facilitate this task. It is
recommended to use the designated tie point located on the motorized unit and on the
substructure to anchor the fall protection equipment. For information about tie points on
the units and the substructure, refer to p. 42 of the Accessories section.
Mast tie door
Removal and transport of mast sections
1- To remove one mast section, loosen the toggle bolt assembly and disengage from
the connecting lug (fi g. 5.27). Perform this operation for all four (4) corners.
2- Pull the top mast section off the bottom mast section. If mast sections are to be stored
on the platform during dismantling, make sure they are set
down horizontally and distributed equally on the motorized
unit.
3- Store mast sections on a fl at surface away from work areas
and construction traffi c.
4- Masts can be removed and carried in lengths of mast sections
(also referred to as "sticks"). It is recommended to use an
optional multiple mast handler to handle pre-assembled
lengths of mast sections. For instructions on the use of the
optional mast handler, refer to p. 117 of the Accessories
section.
5- For best results when carrying mast sections in bundles, it is recommended to strap
them in groups of nine (9). Make sure that mast sections positioned in the middle are
securely strapped to the other sections to prevent them from slipping out during transport.
Removal of mast ties
1- Loosen the adjustment rod on the angle mast
tie until the mast tie is loose enough to be
easily unfastened from the wall tie installed on
the face of the work.
2- Repeat step 1 for the straight mast tie. The
straight mast tie must be the last mast tie
removed.
3- Repeat steps 1 and 2 for each tie level on each
mast.
Angle mast tie
Straight
mast tie
The use of shorter planks will facilitate the passing of tie levels.
WARNING
It is mandatory to make sure that all tension (or compression) is released
from the mast tie before attempting to unpin it from the wall tie.
Masts and Mast Ties
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