Great Plains 2SNG30 Operator Manual - Manual (Page 30)

2SNG24 & 2SNG30
202-499m 8/17/2006
28
Press Wheel Opener Linkage Depth
Adjustment
Attached to the rear of each opener is one of sev-
eral optional press wheels. The press wheel and
its mechanism provide two important functions:
1. The press wheel closes the furrow and gently
presses the soil over the seed.
To provide consistent seed firming, the press
wheel is free to move downward from its normal
operating position. This system maintains press-
ing action even if the opener body is lifted as a
result of the opener disks encountering an ob-
struction or hard soil.
2. The press wheel rolls on the ground providing
depth control to the opener and seed.To
maintain a consistent planting depth, the rela-
tionship between the bottom of the opener
disk-blades and the press wheel is upwardly
fixed. The upward stop is independently ad-
justable on each opener. The position of the
adjustable stop determines how deep the
seed will be placed.
Refer to Figure 23
To change the height of the press wheel, which
automatically changes the seeding depth of the
opener, simply lift the "T" handle located on top of
the opener at the rear and slide forward or rear-
ward until the seeding depth is correct as shown
in the inset in . A spring loaded pin holds the "T"
handle at your setting to maintain the proper
depth.
Disk Opener Spring Pressure Setting
Refer to Figure 24
Each opener spring can be adjusted for down
pressure. This is useful when penetrating hard
soil and for planting in tractor tire tracks. To adjust
the pressure, remove the "W" clip at the bottom of
the spring and place it in a higher hole in the
spring rod for more pressure, and in a lower hole
for less pressure.
Adjustments
12100
12102 12103
Figure 23
Direct Link Press Wheel Adjustment
Figure 24
Down Pressure
Maximum Minimum