Spartan
II
607
Operation
Great Plains | 166-486M | 2019/01/29
55
Markers (Option)
Electrocution Hazard
Never fold implement with a marker
extended. Never extend a marker with
implement folded. Operate markers only
with drill completely unfolded. A marker
extended when folded is a major overhead
electrocution hazard, overhead clearance
hazard, and may damage drill systems.
Crushing Hazard
Do not allow anyone to stand near or
beyond the end of the wings during marker
operations. A folding marker can cause
serious injury or death.
The illustration below shows the marker (1) in the
folded position and resting on the cradle (2).
Dual markers are on a dedicated hydraulic circuit
which contains an adjustable automatic sequence
valve.
Marker circuits must be fully charged with oil and free
of air before operation. Before first use or after
maintenance, bleed the hydraulics. See “
Marker Unfold and Fold
1. Clear the area within 4mof marker arms on both
sides of the drill.
2. Carefully move the circuit lever to extend and
observe which marker side is extending.
3. If the marker extending is not on the desired side,
reverse the lever (to retract) until the marker
returns to the cradle (1). Set the control to neutral
briefly, then to extend again. This cycles the
sequence valve and extends the alternate
marker.
4. When the marker is fully extended, set the circuit
to neutral.
5. To fold the marker, set the circuit to retract until
the marker is in the cradle.
6. To extend the other side, extend once more, as at
Which marker side extends at circuit
activation is somewhat unpredictable, as it
depends on the final state of the sequence
valve at last use.
Special Dual-Marker Operations
Passes with same marker side:
Retract (raise) the marker and make the turn.
Begin to extend the opposite marker.
Retract it, and extend the original marker.
Both markers unfolded:
Fully extend one side.
Momentarily retract, then extend to deploy the
opposite side.
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