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Section 3: Operating Instructions
RC(M)3715 & RCG(M)3715 Rotary Cutters 334-114M
1/26/21
37
Select Gear Range
Optimum ground speed depends on density of material
being cut, horsepower rating of tractor, and (in some
cases) terrain. Always operate tractor at cutter’s
full-rated power take-off 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. Loss of power
take-off speed will allow blades to hinge back and result
in 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.
above for instructions.
2. With wings lowered, increase throttle to a speed just
enough to get the cutter started without stalling
tractor while slowly engaging power take-off. Use
tractor’s power take-off soft start option if available.
3. Ensure power shafts are rotating and cutter is not
vibrating excessively after ramping up to full power
take-off speed for at least 3 seconds. If excessive
vibration continues after 3 seconds at full power take-
off speed, disengage power take-off immediately,
shut tractor down, and remove switch key. Wait for
blades to stop rotating before dismounting tractor.
4. Investigate cause if cutter was shut down due to
on page 34 for detailed instructions.
5. If cutter was not shut down, commence forward
cutting operation at full power take-off operating
speed. Make a new gear selection if tractor is lugging
down or if cutter is making a rough cut.
6. Periodically, disengage power take-off, stop tractor,
place gear selector in park or set park brake, turn off
tractor, remove switch key and wait for blades to stop
rotating before dismounting tractor.
7. Dismount tractor and check for objects wrapped
around blade spindles. Block deck up before
removing objects.
8. Frequently inspect cutter for loose bolts and nuts.
Tighten all loose hardware as indicated in the
“Torque Values Chart”
on page 60.
NOTE:
Never run tractor in an economy mode or
any other mode that will drop power or speed from
the power take-off. This may result in ragged and
uneven cutting.
IMPORTANT:
Cutter blades can lock-up against
each other during start-up and shut-down,
especially if tractor’s power take-off engagement is
“INSTANT ON” and/or “INSTANT OFF”. Follow Blade
Engagement and Blade Disengagement instructions
to help eliminate blade lock up.
Disengage Blades
1. Slowly decrease throttle speed until engine idle
speed is reached.
2. Disengage power take-off.
3. Place tractor in park or set park brake, shut tractor
engine off, remove switch key, and wait for blades to
come to a complete stop before dismounting from
tractor.
IMPORTANT:
It will take longer for the blades to
come to a complete stop on cutters equipped with a
main driveline that has an overrunning clutch, as
opposed to a cutter with a main driveline that doesn't
have an overrunning clutch.