Land Pride RC5020 Series Operator's Manual - page 27
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Section 3: Operating Instructions
4/25/12
RC5020 (540 RPM) and RCM5020 (1000 RPM) Rotary Cutters 318-474M
Table of Contents
Set Wing Lift Lever In Float Position
Use the float position of your tractor’s hydraulic system to
provide automatic floating of the wings for varying terrain
conditions. This will ensure that the wing gauge wheels
are in continuous contact with the ground at all times.
Select Gear Range
Optimum ground speed depends on density of material
being cut, horsepower rating of the tractor and (in some
cases) terrain. Always operate tractor at cutter’s
full-rated PTO speed in a gear range that allows the
cutter to make a smooth cut without lugging the tractor
down, usually between 2 to 5 mph. Low PTO speed will
allow the blades to hinge back resulting in a ragged
uneven cutting.
Engage Blades
1.
Select a gear range that will allow the cutter to make
a smooth cut without lugging the tractor down.
See “Select Gear Range” above for detailed
instructions.
2.
With wings lowered, increase throttle to a speed just
enough to get the cutter started without stalling
tractor while slowly engaging PTO drivelines. Use
tractor’s PTO soft start option if available.
3.
Ensure that all drivelines are rotating and that the
cutter is not vibrating excessively after ramping up to
full PTO speed for at least 3 seconds. If excessive
vibration continues after 3 seconds at full PTO
speed, disengage PTO immediately, shut down
tractor, remove switch key.
4.
Investigate the cause if cutter was shut down due to
of excessive vibration. See “Blade Operation
Inspection” on page 21 for detailed instructions.
5.
If cutter was not shut down, commence forward
cutting operation at full PTO operating speed. Make
a new gear selection if tractor is lugging down or if
cutter is making a rough cut.
6.
Periodically disengage PTO, turn off tractor, remove
switch key & check for objects wrapped around blade
spindles. Block deck up before removing objects.
IMPORTANT: The wing folding lever must be in float
position to avoid damage to the wing hydraulic
cylinder and axle while cutting on uneven terrain.
IMPORTANT: Do not operate this cutter under any
terrain conditions where, on a continuous cut, the
wing hinge angle exceeds 45 degrees up. Damage
to the wing driveline and gearboxes can occur.
IMPORTANT: Cutter blades can lock-up against
each other during start-up and shut-down especially
if tractor’s PTO engagement is “INSTANT ON” and
“INSTANT OFF”. Follow Blade Engagement and
Blade Disengagement instructions to help eliminate
blade lock up.
7.
Frequently inspect cutter for loose bolts and nuts.
Tighten all loose hardware as indicated in the
“Torque Values Chart” on page 48.
Disengage Blades
1.
Slowly decrease throttle speed until engine idle
speed is reached.
2.
Disengage PTO.
3.
Place tractor in park or set park brake, shut tractor
engine off, remove switch key, and wait for blades to
stop before dismounting from tractor.
Avoid Extreme Turning Angles
Refer to Figure 3-4 & Figure 3-5:
Plan your field cutting to minimize number of turns,
especially extreme turning angles. Avoid tractor-to-cutter
turning angles that exceeds the driveline’s maximum
turning angle. If the turn cannot be avoided, disengage
tractor PTO and wait for the driveline to stop rotating
before making the turn.
•
Standard Conventional driveline:
Maximum turning angle = 35
o
.
•
Constant velocity driveline:
Maximum turning angle = 80
o
.
Conventional U-Joint Driveline
Figure 3-4
Constant Velocity (CV) Driveline
Figure 3-5
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