SECTION 00 -- GENERAL INFORMATION -- CHAPTER 2
00-3
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.
NOTICE: Do not raise the cutter bar using the three
point hitch, as this may cause PTO U-jolnt 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 disc mower ground speed capabilities are
variable, depending on field terrain and crop
conditions. Generally, 4 mph - 6 mph (6.4 km/hr- 9.6
km/hr) 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.
NOTICE: Adjust the tractor ground speed by chang-
ing gears. Do not adjust ground speeds by moving
the tractor throttle from the proper PTO speed. Do not
overspeed the PTO or driveling damage may occur.
NOTICE: If the machine vibrates, STOP OPERA-
TION IMMEDIATELY. Determine and correct the
cause of the vibration before continuing operation.
FAILURE TO DO THIS WILL CAUSE SERIOUS
DAMAGE TO THE UNIT.
DANGER
Rotating hazard, stay clear! Never put your
hands or feet under the machine. Do not try to
clear the discharge area or mower blades without
first turning the PTO OFF, turning the ignition key
OFF, removing the key and disconnecting the
battery cable. Wash hands after handling battery
components. Make sure all motion is stopped.
Use a boom or other clearing tool to remove ma -
terial or debris. Failure to comply will result in
death or serious injury.
M1377
CAUTION
Do not operate the machine without all cutter bar
shields down, cover skirts installed and in good
condition, and cover skirts snapped together.
Replace worn or damaged cover skirts. Failure
to comply may result in minor or moderate injury.
M1449
The disc mowers are intended for use in difficult
cutting conditions. The knife speed is approximately
185 mph (298 km/hr) 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.
NOTICE: Take extra precautions to prevent accu-
mulation of baler twine or wire in fields to be cut with
the 600 Series disc mowers. Twine and wire may
wrap beneath the discs and overheat the disc bear-
ings and/or damage shaft seals causing oil loss and
possible module failure.
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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