Great Plains TSF660 Operator Manual - Manual (Page 29)

9/1/2009 500-644M
27 Operating Instructions
Boom Operations
2007+ Sprayer Hydraulics
On newer sprayers, the hydraulics use a “live” system.
The tractor hydraulic pump may be left on during sprayer
operations. This requires 5-to-8 gpm flow.
The console toggle switches move up and down from
center off, and are auto-return. They must be held up or
down until an operation is complete.
2006- Sprayer Hydraulics
The tractor circuit is engaged only during the operation,
and the tractor lever determines the direction of cylinder
movement.
The console switches move only up, are detented, and re-
main in the selected position until moved. The switch may
be operated before or after lever movement.
Refer to Figure 8
The “live” hydraulic controls come standard to operate
with “closed center” tractor hydraulics. To be used with an
“open center” system a conversion kit must be purchased
(part no. 833-427C). To install the conversion kit, remove
the plug from the end of the valve block (#14) located on
the top of the center boom section. Install the conversion
valve and coil into this location. Plug the electrical cable
into the open plug on the valve harness and the conver-
sion is complete.
Elevator Raising/Lowering
The elevator lifts and lowers the center section of the
boom, which raises and lowers the entire boom.
Refer to Figure 9
Lifting is performed by a hydraulic cylinder controlled by a
solenoid valve, which in turn is controlled by an up-down/
center-stop switch
on the boom control panel in the
tractor cab.
The elevator is fully raised for folding.
Lowering is by gravity retraction of the cylinder. When the
switch is toggled down, the hydraulic circuit is put in float.
Lifting and lowering speeds may differ.
Boom Height
After calibrating the sprayer for the specific nozzle to be
used at a desired pressure and tractor speed, the main
field adjustment is the boom height.
Depending on which type of nozzle is being used, set the
boom height so that the correct overlap for that specific
nozzle is achieved. If the crop canopy is taller in some
fields than others, adjust the boom height accordingly.
Refer to the Nozzle Charts in the Application Guide to
determine the height of the boom.
In center-off, the elevator stays at the current position. In
normal field operations, the elevator is set to the desired
height, and left there for the field. Typically this is about
20in (51cm) above the crop canopy.
As necessary, wings are raised and lowered at turns by
the operator, and adjusted to accommodate uneven ter-
rain. The optional Autoboom system is useful on irregular
terrain.
Figure 8
Fasse Valve Block
29639
14
Figure 9
Elevation Switches
27276
1
1