Great Plains YP825AR Operator Manual - Manual (Page 31)

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 27
2014-06-17 Table of Contents Index 401-923M
Unfolding/Folding the Planter
Planter unfolding and folding relies on multiple hydraulic
cylinders, and two circuits (rotate and lift) that are
managed by solenoid valves controlled by the Frame
Control switch box in the tractor cab.
The planter must be hitched, with at least frame control
electrical connection made (page 15) and all hydraulic
connections) made (page 16 before unfolding.
Unfolding the Planter
These steps take the planter from transport configuration
to field lowered configuration.
1. Verify that the tractor and implement Frame Control
harnesses are connected at the hitch (see page 15).
Set/Verify Marker Circuit Locked
If markers are not installed, continue at step 3.
Marker operation is integrated with lift/lower. Markers
must be disabled during mainframe unfold, or a marker
will deploy during lower.
Refer to Figure 16 on page 26
2.
Inspect the manual shut-off valve located on the right
side of the lift structure. Set or verify that the
operating handle is at 90
° to the valve body.
Overhead Hazards and Machine Damage Risks:
Verify that the marker circuit is off before lowering from
transport lift. If the valve is open, a marker unfolds during
opener frame lowering. This unexpected movement could
strike anyone or anything nearby, resulting in serious injury or
death, and significant property damage.
Figure 17
Planter Transport Configuration
34795
Figure 18
Marker Shut-Off Valve Closed
34707
CLOSED