Re-phasing fold system, Lift cylinder lock-up, Re-phasing lift system – Great Plains YP2425A Operator Manual User Manual
Page 34: Lift cylinder lock-up re-phasing lift system
30
YP2425A
Great Plains Manufacturing, Inc.
401-626M
2014-02-10
Re-phasing Fold System
In typical use during a single planting operation, it is
normal for the fold cylinders to get slightly out of phase,
resulting in uneven folding and unfolding of the YP2425A
Planter.
Every few planting days, re-phase the cylinders with this
procedure:
1.
Raise, unfold and fold the planter completely, and
hold the fold hydraulic lever or switch in Extend for
several seconds after the planter reaches full folding,
or until all cylinders are fully extended.
2.
When all cylinders are fully extended, reverse
(Retract) the control to unfold and return to planting.
Lift Cylinder Lock-Up
When moving the raised planter more than a short
distance, or over any public road, or when performing
adjustments or maintenance, do not rely solely on the lift
cylinders to keep the mainframe raised.
Install transport locks.
Refer to Figure 34
1.
If planter is folded, confirm hitch is in Float.
If planter is unfolded, hitch may be in any
configuration.
2.
Raise the planter mainframe. See
“Raising/Lowering Planter” on page 26.
3.
Remove the transport locks from their storage
positions
. Install the transport locks on the
cylinder rods
, securing them with the same pins
used for storage.
4.
Lower the lift cylinders onto the locks.
Re-Phasing Lift System
In typical use during a single planting operation, it is
normal for the lift cylinders to get slightly out of phase,
resulting in uneven raising and lowering of the YP2425A
Planter.
Every 8- to 10 passes, or if lifting is uneven, re-phase the
cylinders with this procedure:
1.
Raise the planter completely, and hold the hydraulic
lever or switch in Extend for several seconds after
the planter reaches full elevation, or until all cylinders
are fully extended.
2.
When all cylinders are fully extended, momentarily
reverse (Retract) the control to lower the planter
1
⁄
2
inch (13 mm).
Figure 34
Lift Cylinder Locks Installed
26038
29283
1
1
2
2
1
2