SECTION 2 - OPERATION
2-2
2. To cut oversquare corners:
Continue cutting in forward direction until the
cutter bar approaches the end of the corner; turn
the tractor sharply to the right, leaving the cutter
bar on the ground to finish cutting the corner.
The cutter bar can be left on the ground while
traveling back to the standing crop; the cutter bar
will not plug when cutting through previously cut
material.
IMPORTANT: Maintain full PTO speed when
crossing previously cut material, even if the cutter bar
is raised off the ground. Failure to do so may cause
cutter bar wrappage and plugging.
During field operation, the tractor hydraulic valve
should remain in the “Float” position, to allow the
cutter bar to follow the ground contours. Raise the
cutter bar to clear obstacles or when turning on
headlands by retracting the lift cylinder. Do not raise
the cutter bar using the three-point hitch; if the tractor
hydraulic valve is in “Float” position, the right end of
the cutter bar will stay on the ground as the
three-point hitch is raised, causing the end of the
cutter bar to gouge into the ground.
IMPORTANT: Do not raise the cutter bar using the
three-point hitch, as this may cause PTO U-joint
failure and/or damage to the cutter bar.
When making left turns in the field, the cutter bar
should be raised off the ground to prevent damage
due to “whipping” the cutter bar around at high
speed. Leaving the cutter bar on the ground during
a fast left turn could cause damage to the cutter bar
components and/or cause the breakaway latch to
trip. If it is necessary to make a sharp left turn while
cutting, reduce ground speed.
The 600 Series disc mower ground speed
capabilities are variable, depending on field terrain
and crop conditions. Generally, 6.4 -- 9.6 km/hr (4 --
6 MPH) yields good results. Slower speeds may be
necessary depending on crop conditions, tractor
horsepower, and terrain. In light, easy to cut crops
and smooth fields, higher speeds are possible.
IMPORTANT: Adjust the tractor ground speed by
changing gears. Do not adjust ground speeds by
moving the tractor throttle from the proper PTO
speed. Do not overspeed the PTO or driveline
damage may occur.
If the machine vibrates, STOP OPERATION
IMMEDIATELY. Determine and correct the cause of
the vibration before continuing operation. FAILURE
TO DO THIS WILL CAUSE SERIOUS DAMAGE TO
THE UNIT.
WARNING
Do not attempt to remove material from the disc
mower while it is in operation. Shut the tractor off
and allow the rotating discs to stop before
leaving the tractor. Failure to comply could result
in death or serious injury.
WARNING
Do not operate the disc mower without the cutter
bar curtain in place and in good condition.
Failure to comply could result in death or serious
injury.
The 600 Series disc mowers are intended for use in
difficult cutting conditions. The knife speed is
approximately 298 km/hr (185 MPH) and relies on
plant stem integrity and strength to cut. The cutter bar
operates on an impact cutting principle.
The high centrifugal force of the knife could permit
crop blowdown in light or thin crops, resulting in uncut
strips, or streaks. In light or thin crops, cutting a
shorter stubble will sometimes reduce streaking. Do
not tilt the cutter bar for a shorter stubble in stony
fields.
IMPORTANT: Take extra precautions to prevent
accumulation of baler twine or wire in fields to be cut
with the 600 Series disc mowers. Twine or wire that
is wrapped beneath the discs can cause the disc
bearings to overheat, the shaft seals to leak, and the
possible failure of the module.
WARNING
Disengage the PTO, turn off the tractor engine
and remove the key. Wait for all movement to
stop before leaving the operator’s position.
Never adjust, lubricate, clean or unplug machine
with the engine running. Failure to comply could
result in death or serious injury.
The cutter bar may plug with dirt and debris between
the stone guards when operating in newly planted
fields with soft loose soil. This plugging may cause
streaking to occur. Tilt the cutter bar back towards
horizontal to increase the cutting height, and lighten
cutter bar flotation to reduce plugging in these
conditions. Clean the cutter bar off frequently to avoid
unnecessary knife and disc wear. In severe
conditions, install the high stubble kit to increase the
cutting height.
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