Great Plains TSF660 Operator Manual - Manual (Page 39)

9/1/2009 500-644M
37 Adjustments
Boom Height
After calibrating your sprayer for the specific noz-
zle you will use at a desired pressure, and tractor
speed, the main field adjustment is the boom
height. Depending on which type of nozzle you
are using, you need to set your boom height so
that you achieve the correct overlap for that spe-
cific nozzle. If the crop canopy is taller in some
fields than others, you will need to adjust the
boom height accordingly. Refer to the nozzle
charts located in this manual to determine the
height of the boom needed. Use the elevator
gauge as a height reference.
EXAMPLE: A 2.5 MeterCone nozzle at 20 inch
spacing is being used. From the nozzle chart {re-
fer to section 4 of this manual or the Application
Guide}, a height of 19 to 21 inches above the top
of the crop is required. If the crop is 6 inches off
the ground, the boom height should be set to 25 to
27 inches off the ground.
Nozzle Pressure
Another area that will need some field adjust-
ments is the nozzle pressure. As your tank level
decreases, you may have to adjust the boom
pressure to keep the pressure at the same mag-
nitude for what the sprayer was calibrated for if
your sprayer is not equipped with a monitor.
Watch your pressure gauge and be aware of
changes in the pressure.
Tank Straps
The tank straps that wrap around the sprayer tank
may become loose after the first few hours of op-
eration. This occurs when the tank settles in the
saddle. Polyethylene tanks are especially suscep-
tible to this. Retighten the tank straps to secure
your tank.
Adjustments