Great Plains 3P4025AH Operator Manual - Manual (Page 27)

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 23
2014-07-29 Table of Contents Index 411-099M
Lift-Assist Locks (Option)
Refer to Figure 14
These lock channels must be used during transport and
raised servicing/adjustments. They are also required for
raised storage. To install:
1. Raise the hitched planter (see page 23). Leave the
tractor hitch and implement lift circuits in Neutral.
2. Remove any snap spacers on the cylinder rods.
Store them on the wire loops .
3. Release the lock channels from the tube
weldments .
4. Pin the channels to the cylinder rods.
5. Lower the lift circuit. Set the circuit to Float.
Raising/Lowering Planter
The planter may be raised or lowered while folded or
unfolded.
Machine Damage Risk:
Do not raise or lower while any planter folding operations are
underway or partially complete.
Machine Damage Risk:
Always raise planter for reverse/backing operations.
Raise/Lower 3-Point
With a full 3-point planter (no lift assist), raising and
lowering is accomplished entirely with the tractor hitch.
Raise/Lower 2-Point with Lift Assist
Planter raising relies on the lower 2-point arms of the
tractor 3-point hitch in front, and the Lift Assist cylinders
in back. To raise or lower the planter, move the levers for
both the Lift circuit and the 3-point hitch.
Great Plains recommends this sequence (to prevent
lateral dragging of wing components):
• in Raising, operate the planter Lift circuit first, and
• in Lowering, operate the hitch circuit first.
The lift assist circuit may also include the optional down
pressure system. This system engages and disengages
automatically.
Figure 14
Lift-Assist Lock Channel
36099
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