Great Plains 2SNG30 Operator Manual - Manual (Page 24)

2SNG24 & 2SNG30
202-499m 8/17/2006
22
Transport Wheel Adjustments For Leveling Drill
When leveling your drill, opener spring rods near the
center of the drill that extend higher above their
spring rod castings than desired can be adjusted by
raising the transport frame. This is done by raising
the drill with the hydraulic lift cylinders. Spring rods
near the center that do not extend high enough are
adjusted by lowering the transport frame by retract-
ing the cylinders.
Refer to Figure 8
Once the spring rods are at the desired setting,
screw the threaded studs on top of the vertical tubes
down as far as possible and secure them with the
jam nuts. This adjustment will stop the lift cylinder
travel at the same point each time the boxes are
lowered for drilling and assures accurate seed
depth control.
Note: If it is noticed that one drill box spring rod ex-
tension is different from the other drill box at the
center of your drill, this is a sign that your lift hydrau-
lic master and slave cylinders are out of sequence
with one another. In order to get them back in se-
quence, simply raise your drill all the way up and
hold your tractor hydraulic control valve lever on for
a few seconds. Now, lower your drill and both cylin-
ders will be in sequence with one another and your
two drill boxes should be at the same level again.
Gauge Wheel Adjustments For Leveling Drill
The openers near the outside of the drill are adjust-
ed by raising or lowering the gauge wheels.
Refer to Figure 9
Raise the drill out of the ground and loosen the jam
nut located near the bottom clevis of the gauge
wheel turnbuckle. This turnbuckle is threaded to al-
low easy gauge wheel adjustment. By lengthening
the turnbuckle the gauge wheel is lowered, causing
less spring rod extension through the spring rod
casting. By shortening the turnbuckle the gauge
wheel is raised, causing less spring rod to protrude
through the spring rod casting. After adjusting, be
sure the turnbuckle on both gauge wheel arms have
the same pin center dimension.
Shortening the gauge wheel turnbuckle will level the
ends of the drill with the center.
10672
Figure 8
Threaded Stud
10546
Figure 9
Turnbuckle
Jam Nut