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19
SECTION 4
PRODUCT FEATURES / FAMILIARISATION
WINDCOMP HYDRAULICS
Wind Comp (wind compensation via independent Left/
Right fan speed control) is a new feature made possible
by the new Fusion hydraulic system. The fans facing left or
right sides can be run independent of each other. This is
ideal for combating cross winds or spraying in exposed
/ challenging conditions. For example, instead of running
both sides of the sprayer at 2,200 rpm, with Wind Comp
it’s possible to increase fan speed against the wind to say
2,500 rpm, and on the downwind side the rpm will drop to
around 1,900 rpm.
For more detailed information refer to page 34
and in the Fusion Manual HT-OMFUSION-A.
Note the
laws of physics still apply
, if the maximum speed
is 2,500 rpm on all fans, it’s not possible to increase one
side to 2,800 and leave the other at 2,500.
Note in the photo, the coil
circled
(closest to the main
inlet / outlet at position (K), controls the fans that spray to
the right side, and the coil below controls the left facing
fans. Note in some applications the block is mounted with
position (K) to the bottom.
PTO Speed / Hydraulic Requirements
Due to the configuration of the hydraulic control block,
the PTO / Pump / Tractor (depending on how oil is being
supplied) needs to maintain a minimum output in order
to supply both sides of the fan circuits with the same
operating rpm. For example, if at PTO = 420 rpm and both
LH & RH fans are running at 2,400 rpm, as the PTO speed
reduces below the minimum, one side will maintain priority
and continue to run at 2,400 rpm and the other side will
drop away and run slower. This feature can be used to
determine best PTO speed to economically run the sprayer.
Recommended minimum PTO speed = 420 rpm
Note the actual minimum (at which point the LH and RH
fans differ) will change from sprayer to sprayer and is more
likely to be lower than 400 rpm.