Great Plains 2510HDF Operator Manual - Manual (Page 48)

44 1510HDF/2010HDF/2510HDF Table of Contents Index Great Plains Manufacturing, Inc.
288-340M Table of Contents Index 2013-11-11
10HDP Series Down-Pressure
Refer to Figure 38
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 fluted
feed drill 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 fluted feed drill.
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 fluted feed drill. Although this adjustment
can be made with the fluted feed drill 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+ fluted feed drills, or
updated older fluted feed drills, that have two parallel
arm springs per row. 4-Spring 10HD Cam Down-Force Settings
These settings apply to older fluted feed drills, 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 38: 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