Great Plains YP1630F-1670 Operator Manual - Manual (Page 77)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 73
2012-12-27 Table of Contents Index 401-832M
Frame Lift Cylinder Locks
Refer to Figure 72
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 drive or fertilizer ground drive wheel is not
remaining in ground contact, check the spring settings.
The factory dimensions are:
Variations from factory settings are not recommended.
Figure 72
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 73
Ground Drive Spring
34487
1
2
1
2