Unfolding the planter – Great Plains 1625AHL Operator Manual User Manual
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1625AH
Great Plains Manufacturing, Inc.
411-020M
2014-04-21
Refer to Figure 14 or Figure 15
6.
Fold Solenoid Valve:
The fold and marker cylinders share a hydraulic
circuit via a solenoid valve controlled by a switch box
mounted in the tractor cab. The physical appearance
of the switch (and the hitch connector) varies with
the type of seed monitor.
When the switch is in the MARKER or center (OFF)
positions, hydraulic flow to the fold cylinders is
blocked. This provides additional protection against
unintended folding during reverse moves when
unfolded.
Set the switch to FOLD only during fold and unfold
operations. When afield and using markers, the
switch is normally set to and left in the MARKER
position.
Unfolding the Planter
The distance between the tractor and the central cart
decreases by about 3 m (10 feet) during unfolding.
Planter, tractor, or both will move during this operation.
Crushing, Pinch-Point and Overhead Hazards:
To prevent serious injury or death:
▲ Unfold only on hard level ground. Allow ample room.
▲ Allow no one on or near the planter during unfolding.
▲ Stay clear of the wing sweep arcs. The sweep arcs of the
wings have numerous pinch and crush points in the
mechanism. Coulters and row openers are sharp.
▲ Allow no one near planter during unfold. The fertilizer cart
usually moves forward during unfolding.
▲ Do not unfold with planter lowered.
▲ Unfold only with markers resting in transport cradles.
▲ Unfold only if hydraulics are bled free of air and fully
charged with hydraulic oil.
Figure 14
Hydraulic Selector Switch (PM400)
34552
F
Figure 15
Hydraulic Selector Switch (MVT)
36230
F