Great Plains NTA3007HD Operator Manual - Manual (Page 65)

Operating Instructions 61
04/04/2011 166-207M
Marker Operation (Option)
Dual markers are optional on the NTA907/3007HD. See
“Markers” on page 141 for ordering information.
Marker Safety Information
Electrocution Hazard:
Keep clear of overhead power lines when operating markers.
The markers can reach 7.3m (24ft) above ground level during
folding and unfolding. If a marker gets too close to, or contacts
a power line, nearly all metal parts of the tractor and drill will
have lethal voltage present, and anyone touching them can
complete the circuit to ground, resulting in serious injury or
death. With very high voltages, electrocution can occur with-
out direct contact.
Overhead Marker Hazard:
To prevent serious injury or death, do not allow anyone to
stand near or beyond the end of the wings during marker oper-
ations. You may be injured if hit by a folding or unfolding
marker. Markers may fall quickly and unexpectedly if the
hydraulics fail. Marker arms are heavy and marker disks may
be sharp.
Marker Pinch Point/Shear Hazard:
To prevent serious injury or death, do not allow anyone to
stand near the end of the wings or and part of the markers dur-
ing marker operations. The marker mechanism has numerous
points where crushing or shearing injury can occur.
To prevent unexpected marker operation, leave CFM Marker
switch off (down) when markers are not in use.
Operate markers only with drill completely unfolded. Extend-
ing a marker when tilted up may damage drill systems. Extend-
ing a marker when folded may damage the tractor.
Additional Marker Topics
See also:
“Initial Marker Setup” on page 163,
“Marker Adjustments” on page 99, and;
“Marker Maintenance” on page 131.