Land Pride Disc Harrows DH3510, Руководство оператора

Страница: 28 / 44

Section 3: Adjustments
Table of Contents
DH3510 & DH3512 Disc Harrow 322-251M 12/7/18
24
Hydraulic Cylinder Depth Adjustment
Refer to Figure 3-7:
1. Remove all stroke control spacers (#4 & #5) from the
hydraulic cylinder.
2. Lower Disc Harrow to desired working depth and
travel froward. Your travel speed will be determined
by soil conditions.
3. When working depth is achieved, stop tractor, shut
tractor engine off, and remove switch key.
4. Select required size and number of stroke control
spacers (#3) that will fit between hydraulic cylinder
and rod eye clevis. The following spacers are
available.
•
Two 1" spacers
•
One 1 1/4" spacer
•
One 1 1/2" spacer
•
One 1 3/4" spacer
5. Return to the tractor and raise the Disc Harrow up.
Once fully raised, turn tractor engine off and remove
switch key.
6. Install preselected stroke control spacers (shown as
#4 & #5 in this example) on the cylinder rod.
7. Lower Disc Harrow against installed stroke control
spacers. Recheck working depth. If needed, adjust
size and quantity of stroke control spacers until
desired working depth is achieved.
Hydraulic Cylinder Depth Adjustment
Figure 3-7
IMPORTANT: Because soil firmness varies from
field to field, make depth adjustments while working
in the field.
26531
Disc Gang Angle
Increasing the disc gang angle will help the Disc Harrow
to penetrate the soil and remove vegetation. However,
too much angle can cause the Disc Harrow to operate
erratically. Therefore, it is best if the disc gang angles are
set at the smallest angle required to do the job. Make
sure the angle of the front disc gangs is 3 degrees more
than the rear disc gangs.
See also Section 8: Troubleshooting for helpful solutions
to setting the disc gang angles.
Disc Leveling Front To Rear
Refer to Figure 3-1 on page 22:
The truest way to level your disc from front to rear is to
observe behind the center of the Disc Harrow. In most
soil conditions, a slight ridge in the center is actually a
level operation. More air pockets will form where soil is
thrown against each other, causing a small ridge to from
that will disappear after a soaking rain.
1. If unit is leaving a significant ridge in the center,
raise disc rear gangs by turning spring adjuster (#2)
counterclockwise.
2. If unit is leaving a furrow (valley) in the center, lower
the rear disc gangs by turning spring adjuster (#2)
clockwise.
3. See also Section 8: Troubleshooting for helpful
solutions to leveling the Disc Harrow.
Disc Blade Replacement
Refer to Figure 3-8:
When replacing notched disc blades, assemble the disc
blades in a spiral pattern.
See note in Figure 1-6 on page 12: Order 3/8" thick
washer(s) from your nearest Land Pride dealer if axle
nut(s) runs out of threads before the disc blades are tight
on the axle.
Disc Replacement (Spiral)
Figure 3-8
25989