Great Plains PD8070 Operator Manual - Manual (Page 25)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 21
2014-07-23 Table of Contents Index 401-479M
Monitor Setup
Refer to Figure 20
The standard DICKEY-john
®
PM300 system monitors
the following elements of a PD8070 planter:
• seeds at each row unit seed tube;
• ground speed.
See “Seed Monitor Console Installation” on page 101.
Refer to the DICKEY-john
®
PM300 Manual
(11001-1372) for monitor operations.
After installation, and prior to first field use, the monitor
must be setup with the row spacing and speed sensor
constant, as well as your preferences for information
display. Row count is auto-assigned, but any other
DICKEY-john
®
defaults are not likely to be correct for
your planter.
Row spacing data may be found in the Appendix.
For speed setup, Great Plains recommends using the
122 m (400-foot) speed calibration described in the
DICKEY-john
®
manual. Perform the calibration run in
representative field conditions, as soil conditions, surface
looseness and other tillage practices can cause
variations in the effective rolling radius of the ground
drive wheel.
Prior to each planting session, set any desired limits for
speed and population for the current crop.
Marker Setup (Option)
Prior to first use, check and adjust:
• “Marker Folding Speed” on page 41.
Prior to first use, and whenever changing row spacings,
set or reset:
• “Marker Extension” on page 40.
Prior to each planting session, check and adjust:
• “Marker Disk Adjustments” on page 41.
Bleeding Hydraulics
Lift Hydraulics
Normally the lift hydraulics are bled at the factory before
shipping, and bleeding should not be required other than
to raise fully and hold lever on for one minute or until all
cylinders extend fully.
If it is necessary to further bleed lift system, see
“Bleeding Lift Hydraulics” on page 65.
Marker Hydraulics
To fold properly, the marker hydraulics must be free of
air. If the markers fold in jerky, uneven motions.
As the marker cylinders are encased within the main
tool bar, it is not practical to bleed them at cylinder
fittings. Remove air from the system by slowly cycling
fold and unfold several times.
Figure 20
Monitor Primary Screen
29971