Great Plains 1625AHL Operator Manual - Manual (Page 106)

102 1625AH Table of Contents Index Great Plains Manufacturing, Inc.
411-020M Table of Contents Index 2014-04-21
Frame Lift Cylinder Locks
Refer to Figure 98
Center main frame lock channels
are provided for use
during service procedures with the planter partially or
completely unfolded.
They are not necessary for normal transport operation.
When the planter is fully folded, the center section is
supported at lift by the wing locks on the tongue.
Install Center Lift Locks
1.
Remove lock channels from storage locations.
2. Raise the unfolded planter.
3. Install lock channels on exposed cylinder rods .
Remove Center Lift Locks
1.
Raise the unfolded planter, to allow removal of the
lock channels.
2. Move the lock channels to their storage locations.
Ground Drive Springs
If a seed ground drive wheel or fertilizer (dry or liquid)
ground drive wheel is not remaining in ground contact,
check the spring settings. The factory dimensions are:
Variations from factory settings are not recommended.
Height Switch Adjustment
The height switch informs the seed monitor about the
lowered/raised status of the planter. On all planters, the
monitor only counts seed when the planter is lowered.
Refer to Figure 100
1.
Loosen the bolts holding the height switch
bracket in place.
2. Lower the planter to the height at which seed
delivery should begin.
3. Adjust bracket height until whisker contacts frame
rib and switch clicks. Tighten the bolts to secure it
in place.
Figure 98
Mainframe Lift Lock
34469
2
1
1
1
2
438.2 mm
±1.5mm (17 1 ⁄
4
inches
± 1 ⁄
16
inch)
between center-lines of pins
338.1 mm
±1.5mm (13 5 ⁄
16
inches
± 1 ⁄
16
inch)
from base-end pin center-line to interface of spring
stop and adjustment nut
Figure 99
Ground Drive Spring
34487
1
2
1
2
Figure 100
Height Switch
36260
1
3
2
4
5
2
1
2
3
4
5