Great Plains NTA2007 Operator Manual - Manual (Page 66)

62 NTA607 or NTA2007 Table of Contents Index Great Plains Manufacturing, Inc.
166-372M Table of Contents Index 2012-01-05
Marker Operation (Option)
Dual markers are optional on the NTA607 and NTA2007.
See “Markers” on page 146 for ordering information.
Additional Marker Topics
See also:
“Marker Adjustments” on page 99, and;
“Marker Maintenance (Option)” on page 134.
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 / after maintenance,
perform “Marker Hydraulic Bleeding”, page 134.
Marker Safety Information
Electrocution Hazard / Machine Damage Risk:
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.
Sweep and Pinch/Crush Marker Hazards:
Do not allow anyone to stand near or beyond the end of the
wings during marker operations. A folding marker can cause
serious or fatal crushing injuries. Marker disc is sharp. A
folding or unfolding marker can cause serious lacerations and
cause falls.
Figure 54
Marker Folded, in Cradle
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