ADJUST DEPTH CONTROL
ADJUST DEPTH CONTROL
3PT Applicator 813P / 833P
Page 44
ADJUST DEPTH CONTROL
Adjust Application Depth
Depth of material placement can vary
depending on the type of application. Check
with the fertilizer or chemical manufacturer
for information regarding application depth.
Set toolbar, coulter/disc, row unit, or nozzle
to required depth.
Once the desired field location of the
application is reached, the center section
and main wing kick may be lowered.
Even after row units are in ground, the SCV
switch for Down Pressure must be constantly
engaged to provide oil supply to and drain
from down pressure circuit.
Failure to keep Down Pressure engaged and
constant supply of oil flow to the down
pressure system may result in coulters riding
out of the ground and could result in
structural failure of the toolbar and/or
hydraulic cylinder components.
Down Pressure Adjustment
The extension rate of the down pressure
(kick) cylinders can be adjusted via an
adjustable pressure valve.
Adjustment should be made on this valve
when ground conditions change significantly.
1.
Verify that the main lift hydraulic flow
setting in the tractor is set to 9 or
90%.
2.
Unfold the toolbar into its field
position and lower the toolbar fully to
the ground.
3.
Keep the main wings’ switch (SCV II)
engaged.
4.
Loosen the jam nut on the valve.
5.
Using an Allen wrench, turn the
socket head screw in ¼-turn
increments to adjust the down
pressure.
a.
Turn clockwise to increase
pressure, and
b.
Turn counterclockwise to
decrease pressure.
6.
The hydraulic down pressure
gauge should read between 700
PSI and 1500 PSI.
7.
Tighten the jam nuts when finished.
8.
Raise the toolbar fully.
9.
Toolbar is ready for application.
Use only as much down pressure as needed
to get coulters to their proper depth. Excess
pressure could cause damage to the toolbar.
