4. Unfold both the left and right main boom sec-
tions (A) using the horizontal extension
switches on the hydrostatic lever (B). It is im-
portant that both booms are unfolded at the
same time to prevent an unbalanced load on
the transom. NOTE: Boom motion slows near
the end of travel, make sure the boom has
stopped moving completely (full extension
should be 19 to 20 inches of cylinder exten-
sion) to ensure the boom stops in the “spray
position”. You can view the position of the
booms on the MD3, 120 Boom Page same as
you could with the level positions.
OPERATING INSTRUCTIONS
35-3
A
B
Summary of Contents for UpFront 120
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