Great Plains 3N-4025P Operator Manual - Manual (Page 126)

122 3N-40P Table of Contents Index Great Plains Manufacturing, Inc.
196-538M Table of Contents Index 2014-01-29
Seed-Lok
®
Seed Firmer Lock-Up (2010+)
Refer to Figure 178 (which depicts a row unit with discs, side
depth wheels/arms and press wheels removed for illustrative
purposes - removal is not necessary for lock/unlock)
To lock up Seed-Lok
®
wheels:
1. Raise drill. Insert lift assist cylinder locks.
2. Lift Seed-Lok
®
lock-up handle until lever stop is
free to rotate.
3. Rotate lever stop to side/idle position . Release
lock-up handle .
4. Push up on Seed-Lok
®
wheel until wheel arm
latches up .
To release a locked-up Seed-Lok
®
:
1. Insert a
1 ⁄
4
in tool drive tip in the tool hole of the
handle . Alternatively, lift up on the wheel .
2. Rotate the handle clockwise (handle arm up) until
the Seed-Lok
®
wheel releases at the latch point
and falls free.
3. While holding the handle up, rotate the raised portion
of the lever stop
under both sides of the handle
at the arm end. Remove the tool.
25 Series Press Wheel Adjustments
25 Series press wheels have three adjustments:
Refer to Figure 179
a. Down pressure (shown at maximum)
b. Wheel stagger (shown staggered)
c. Centering (see Figure 181 on page 123)
Press Wheel Down Pressure
Handle
sets down pressure, which may need
adjustment for different soil types and field conditions.
• Relax the handle forward (in the direction of travel) for
decreased down pressure.
• Pull the handle back for increased down pressure.
Note: Engage the lever stop under the handle when
Seed-Lok
®
is in use. If left disengaged , a furrow
obstruction could cause unintended lock-up.
Figure 178
Seed-Lok
®
Lock-Up (2010+)
31543
2
3
1
4
2
3
5
6
1 2
3
1
4
5
6
1 4
5
2 2
Figure 179
Press Wheel Adjustments
25118
a
c
b
a