Great Plains V-300F Operator Manual - Manual (Page 78)

74 V300 & V300F Great Plains Manufacturing, Inc.
148-057M-A 11/15/2007
Opener Down-Pressure
There are two adjustments for opener down-pressure:
1. gang adjustment using hydraulic down-pressure,
described at See “Hydraulic Down Pressure” start-
ing on page 36
2. individual row adjustments via the row unit springs,
described on See “Row Unit Down Pressure
(Spring)” starting on page 90.
Adjust row unit down-pressure after adjusting coulters.
The goal of opener down-pressure is to keep the row unit
frame level with the ground when the opener disks are
running at the desired depth in your soil conditions.
Setting all row units to high forces (either with hydraulics
or springs) can cause wheel skipping and/or uneven row
unit depth. Using high settings may require adding
weights to the drill frame (next topic).
Frame Weights
The standard V300 and V300F drill includes two hangers
which each accept up to nine 100 pound (45 kg) weights
(18 total, 1800 pounds or 816 kg total). The drill does not
include the weights, which are the widely-available “suit-
case” tractor style.
In more severe conditions,
+ higher coulter forces,
+ higher hydraulic down force and/or
+ higher row unit spring settings across all rows,
may be necessary to obtain consistent planting depth. If
the settings result in lifting or skipping of the ground drive
tires, add weight to the drill frame.
IMPORTANT !
Extra weight on the drill frame increases any negative
tongue weight.
Figure 75
Opener Down-Force
22574
1
2
Figure 76
Adding Weights
27229