Great Plains YP3025 Operator Manual - Manual (Page 29)

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 25
2013-09-09 Table of Contents Index 401-703M
Fold/Unfold Lock Overview
The YP3010HDP/20P/25 planter includes five sets of
locks for the frame, wings and casters:
1. Wing locks: Hooks on the tongue engage locks on
the wings to prevent unfolding in transport. Tongue
must be raised to engage/release. See page 18.
2. Lift cylinder lock channels: These are opera-
tor-installed on a raised planter, these prevent lower-
ing in transport or when parked. See page 29.
3. Fold cylinder and Caster swing arm cylinder lock
valves: Automatic switch-controlled solenoid valves
prevent motion of the fold cylinders and caster swing
arm cylinders, in transport and field. See page 138.
4. Tongue lock: This engages automatically at unfold,
and lock the tongue/draw bar geometry for field oper-
ations. See page 27.
5. Caster pivot locks: operator-engaged after unfold,
these prevent caster swiveling in the field, which aids
in tracking across hillsides. See page 31.
Unfolding the YP3010HDP/3020P/3025
The distance between the tractor and the seed structure
decreases by 12 ft (3.7m) during unfolding. Planter, trac-
tor, or both will move during this operation.
Crushing, Pinch-Point and Overhead Hazards:
To prevent serious injury or death:
▲ Fold only on hard level ground. Allow ample room.
▲ If it is desired that the tractor not move, make sure tractor is
in Park and/or has parking brakes set, otherwise the tele-
scoping movement of the planter is likely to result in tractor
movement.
▲ Do not allow anyone to be 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 mecha-
nism. Coulters and row openers are sharp.
▲ Allow no one near planter. The seed structure usually
moves forward during unfolding.
▲ Do not unfold with planter lowered, or machine damage
will result.
▲ Unfold only with markers resting in transport cradles.
▲ Unfold only if hydraulics are bled free of air and fully
charged with hydraulic oil.
2
1
3
5
4
1
2
2
3
3
Figure 15
Fold/Unfold/Lift Locking Features
31542