Great Plains YP2425A Operator Manual - Manual (Page 30)

26 YP2425A Table of Contents Index Great Plains Manufacturing, Inc.
401-626M Table of Contents Index 2014-02-10
Raising/Lowering Planter
Refer to Figure 23
Planter raising/lowering relies on the four lift cylinders at
the mainframe and wing end gauge wheels.
The planter must be raised for folding and unfolding.
The planter will not fully lower if transport locks are
installed. See “Lift Cylinder Lock-Up” on page 30.
Note: When unfolded, if one or both markers are
extended, they may drag or shove if left extended
during raise or lower operations. To avoid this, fold
markers prior to raise or lower.
Machine Damage Risk (Hydraulic Hitch Only):
Do not lower planter while folded without using the special
procedure below (this is a hydraulic hitch restriction - planter
may be lowered while folded with standard 3-point hitch).
Machine Damage Risk:
Do not lower while any planter folding operations are
underway or partially complete, with either hitch.
Machine Damage Risk:
Always raise the planter for any reverse/backing operations.
Local Float on Hydraulic Tongue
A hydraulic hitch planter may be raised or lowered while
folded if the hitch has the local float valve.
Crushing Hazard:
Tongue or planter components may drop suddenly when circuit
is floated. Before raising or lowering, set CFM Lift/Hitch
switch to Hitch and set tractor circuit to Float. If tractor is not
available, use bypass valve on hitch.
Stand clear and open it slowly.
1. Float hitch circuit before lowering while folded.
Float hitch circuit before rasing while folded.
2. Set CFM Lift/Hitch switch to Lift for raising/lowering.
3. Close bypass valve before switching to Hitch. Hitch
circuit operation has no effect with bypass valve
open.
1
Figure 23
Clutch Folding Module
26113
Figure 24
Planter Raised
26114
Figure 25
Planter Lowered
26115
Figure 26
Local Float on Hydraulic Tongue
26152
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