Great Plains ADC1150 Operator Manual - Manual (Page 30)

28
Section 2 Implement Assembly and Setup
Model 1150 1995 - 1997 167-058M 7/28/10
Great Plains Mfg., Inc.
Bleeding the Folding System
1. Unpin the rod end of the fold cylinders and block up.
Wire or otherwise safely support the cylinders so
when the rod end is fully extended it does not contact
anything.
2. Cycle the cylinders completely in and out a minimum
of three times to purge the air from the fold system.
3. Fully extend the cylinders to repin the rod ends.
!
CAUTION!
Do not fold implement unless gauge wheel transport locks are
installed.
4. Recheck the tractor reservoir and fill to the proper level.
Side-to Side Frame Leveling
Equal seeding depth across the drill can only be main-
tained if all frames are level. Leveling adjustments should
be done during the initial setup of the drill. Periodic frame
leveling should not be necessary, however, you may field
check the level by laying a straight edge across at least
two frame members and out over a gauge wheel of that
frame. Measure the distance from the bottom of the
straight edge to the top of the gauge wheel tire. Compare
this measurement at the other gauge wheel tires, step 4. If
leveling is necessary follow the instructions listed.
45’ Drill Frame Leveling
1.
The gauge wheel hydraulic circuit should be bled of air
and full of oil, see Bleeding the Hydraulic Lifting Sys-
tem, this section, on page 24.
2. Hydraulically lower the entire implement frame. The
frame should then be jacked up and supported, see
Bleeding the Hydraulic Lifting System, this section, on
page 24, and implement sections one and six non-
castored gauge wheel cylinders should be unpinned
at the rod end and safely supported.
3. Retract all gauge wheel cylinders fully. Since the dual
gauge wheels on the implement sections three and four
are non-adjustable all adjustments will be made with
these as a reference. A reference measurement must
be taken from the top of the implement frame to the cen-
ter of one dual gauge wheel axle, refer to Figure 2-10.
NOTE: Check the hydraulic fluid in the tractor reser-
voir and fill to the proper level. Add fluid to the system
as needed. A low reservoir level may draw air back
into the system, causing jerky or uneven cylinder
movement.
NOTE: On the 45‘ model if one side is completely in or
out and the other side is not moving release the tractor
hydraulic lever momentarily, reverse it and try again.
4. With all cylinders fully retracted lay a straight edge
across at least two frame members of either imple-
ment section three or four and extend the straight
edge out over the dual gauge wheel axle of that imple-
ment section. Measure the distance from the bottom
of the straight edge to the center of the dual gauge
wheel axle, approximately 11 5/8”.
Implement sections one and six non-castored gauge
wheels (inboard) should center on the measurement
determined above. Implement sections one and six
(outboard) gauge wheels should measure approxi-
mately 1/2” higher (subtract 1/2” from your measure-
ment) because they carry less weight.
5. Lay a straight edge across the top of at least two frame
members of implement section one and out over the
non-castored gauge wheel axle. Raise the unpinned
gauge wheel and arm assembly up to where the cen-
ter of the gauge wheel axle is at the measurement de-
termined in step 4 above. Support the gauge wheel at
that point. Swing the cylinder down to the gauge
wheel arm and adjust the eye-bolt (#1), Figure 2-11,
until the pin holes line up. Secure the eye-bolt with the
jam nut and repin the cylinder to the gauge wheel arm.
Dual Gauge Wheel Arm
Figure 2-10
14575
Eye-bolt Adjustment
Figure 2-11
14448