Great Plains YP1625A Operator Manual - Manual (Page 28)

24 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.
401-625M Table of Contents Index 2013-08-13
Raising/Lowering Planter
The planter mainframe raises and lowers independently
of the tongue.
• The planter may be fully raised at any time (and must
be raised for folding).
• The planter may be lowered onto its transport lock
channels at any time.
• The planter may be fully lowered, with lock channels
removed, only when unfolded.
Refer to Figure 24
The CFM “CLUTCH” switch positions are not shown
because they normally require no attention during lift or
lower. Lifting the planter automatically disengages the
entire drive system.
The “Fert.Pump” switch has no function on YP1225A
& YP1625A planters as shipped by Great Plains because
the optional fertilizer system for these planters uses a
ground-drive pump that has no electrical control.
Leave or set the CFM Marker/Fold switch in “Marker”
position to prevent unintended folding.
Raising Planter
The planter may be raised at any time.
1. Set the CFM “Lift/Hitch” switch to Lift to enable the
lift cylinder circuit.
2. Move the Lift/Hitch circuit lever to extend the lift
cylinders.
3. Set the circuit to Neutral to hold the planter at lift.
The switch
may be left in the “Lift” position.
4. Install lock channels if raising for transport, parking,
storage, adjustments or maintenance.
Lowering Planter
If lock channels are installed, the planter may be lowered
at any time. if lock channels are not installed, lower only
when unfolded, such as for field turns.
Install lock channels (page 23) as appropriate for next
activity.
1. Set the CFM “Lift/Hitch” switch to Lift to enable the
lift cylinder circuit.
2. Move the Lift/Hitch circuit lever to retract the lift
cylinders until settled on lock channels or fully
lowered to ground.
3. Set the lift circuit to Neutral for field operation. The
switch
may be left in the “Lift” position.
Figure 24
CFM for Lift/Lower
28485
If your planter has an aftermarket pumping system
compatible with the IntelliAg
®
system, the “Fert.Pump”
switch may require operator attention during lift/lower.
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3
2
1
2
Lowering Planter Hazard:
Use transport locks. A raised planter slowly lowers when held
up solely by circuit neutral. Anyone beneath the row units
could be trapped and injured. Rely on circuit neutral to hold
the planter raised only for brief periods, such as field turns
and during lock channel installation. Use lock channels at all
other times.
Note: After every few hours of operation (or earlier, if
uneven lift is observed), re-phase the lift circuit.
At a lift operation, hold the circuit in Extend for
30 seconds.
3
3
Crushing Hazard:
Keep all persons away from frame sections during lift and
lower. Area under row units is particularly dangerous. Sharp
coulter and opener blades descend with hundreds of pounds of
down-force.
Note: Unless lock channels are installed, lower the
planter only when fully unfolded. Lowering when
folded is prevented by the transport locks.
3
3