41
Positioning of the rear boom positions can impact fan
performance …
• Less than 800mm between fan frames may see some
slight loss of overall effectiveness.
• Fans too close to the canopy may leave gaps in the
coverage (unlikely with 3 fans per frame).
• Notch 3 is considered the ideal starting point as it’s
well protected behind the sprayer and generally an
ideal distance to the canopy.
SET-UP THE SPRAY FANS
For those setting up 3 fans per frame sprayer –
congratulations, it’s hard to miss the target, and far less
critical on setup than 2 fans per frame.
The following fan positioning adjustments are available in
order to maximise spray efficacy.
Moving fans up and down within the frame to best position
spray in relation to the canopy. Adjustment via loosening
the fan clamps at position A.
Angling fans up (common with bottom fans) straight ahead
or down (common with top fans).Adjustment via loosening
the fan clamps at position B.
Rotating the fan frame to point the fans forwards (direction
of travel) or to point backwards. This adjustment is made at
position K on page 40.
The fan (fan frame) distance from the canopy is adjustable
via boom positioning.
A repeatable recipe for spraying can be built by
combining the boom and fan position settings
with the spray data.
Fan Clamp
Note the stainless steel fan mounting clamps have “teeth”
set at every 10 degrees, and the gap between is 5
degrees. Total movement of 45 degrees up and down,
either side of centre (larger “tooth”).
Both M12 bolts on both sides need to be loosened to
enable adjustment of the fan position or angle. The cowling
inserts are brass.
The “normal” fan position is with a minor portion of the fan
sitting forward of the frame (hence better protected), as
shown in the middle fan.
SECTION 5
PRE-OPERATION
Fan Clamp - Reversed
A
B
