Row unit down pressure, 10hdp series down-pressure, Spring 10hd cam down-force settings – Great Plains YP3025 Operator Manual User Manual
Page 66
62
YP3010HDP/3020P/3025
Great Plains Manufacturing, Inc.
401-703M
2013-09-09
Row Unit Down Pressure
10HDP Series Down-Pressure
Refer to Figure 66
An adjuster cam sets row unit spring down pressure
individually for each row unit. This is useful for
penetrating hard soil and planting in tire tracks.
The notes in the left table below are based on a planter
without coulters. About 120 pounds (54 kg) of the
down-force is the weight of the row unit itself. The
additional force is due to the springs lifting against the
mass of the planter.
Test, without seeding, in your conditions, to determine
optimal down-force settings.
To adjust down pressure, use an adjustable or open-end
1
1
⁄
8
inch (29 mm) wrench.
1.
Raise the planter. Although this adjustment can be
made with the planter lowered, the springs will be in
tension, and will require more effort. The extra force
required may also damage tools.
2.
Put tractor in Park and shut it off.
3.
Position wrench on hex nut weldment.
4.
Pull upper spring link back.
5.
Move the adjustment cam to the new setting on the
spring adjust bar.
2-Spring 10HD Cam Down-Force Settings
These settings apply to 2009+ planters, or updated older
planters, that have two parallel arm springs per row.
4-Spring 10HD Cam Down-Force Settings
These settings apply to older planters, not yet updated
a
,
that have four parallel arm springs per row.
Note: With 4-spring rows, do not set all rows so high that
planting becomes uneven or gauge wheels lift off
ground.
Figure 66: 10HDP:
Row Unit Minimum (one)
and Maximum (six)
27065
1
6
Cam Notch
Pounds
Kilograms
zero (out of notch)
Lock-Up & Maintenance
one
125
55
two
140
60
three
155
70
four
185
85
five
215
100
six
245
110
tip
Do Not Use
36026
a. Contac your Great Plains dealer for update kit information.
Cam Notch
Pounds
Kilograms
zero (out of notch)
Lock-Up & Maintenance
one
250
115
two
275
125
three
310
140
four
370
170
five
430
195
six
490
220
tip
Do Not Use
31452