Martin Audio MLA User Manual page 427

MLA System
USER GUIDE
The grid and sub can then be flown lifting vertically and then lifting the front point to bring the cabinet to the horizontal. The
wheelboard should be removed. Note that as with the MLA, the MLX will swing forward as soon as it leaves the ground, you
must take extreme care, it is very big and heavy and could easily cause injury if it hits anyone when this is happening. Never raise
an MLX when there is someone standing in front or behind the sub, crew flying the subs should stand either side and carefully
steady the sub as it is flown making sure they avoid getting fingers trapped when it is moving.
Next wheel the second MLX up behind the first, raising or lowering the flown sub until the rear lower corners are close to the
second cabinet rear upper corners. Connect the two together using the pins in the flown cabinet to free the flying bracket from
its stored position and linking into the second MLX;-
MLA System User Guide V2.1
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