Land Pride RC5020 - Manual (Page 29)

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Section 3: Operating Instructions
5/29/13 RC5020 (540 RPM) and RCM5020 (1000 RPM) Rotary Cutters 318-474M
Table of Contents
Field Set-up
!
WARNING
The following operational procedures should be carried out
by the tractor operator. Other persons should be cleared of the
area. All cutter operations including field set-up should be
stopped when other persons are in the vicinity.
Lower Wing Down & Set Cutting Height
Refer to Figure 3-5:
1. Inspect wing blade carriers and cutting blades prior
to lowering the wings.
Wing Deck Blade Positioning
Figure 3-5
Refer to Figure 3-3 on page 26:
2. Raise both wings up to release any tension on the
transport lock bars (#3). Remove hairpin cotter (#1)
and transport lock bar (#3) from cylinder pin (#4) on
both wing sections.
Refer to Figure 3-4 on page 26:
3. Rotate end of transport lock bars (#3) to storage
pins (#2) and secure with hairpin cotters (#1).
4. Lower both left and right wing sections down.
5. Adjust cutter to field cutting height. See “Cutting
Height Adjustment” on page 22 for detailed
instructions.
Set Wing Lift Lever In Float Position
IMPORTANT: Cutting blades may become locked
together (overlapped) when wings are raised for
transport. Operating cutter in this condition will
result in severe deck vibration. Inspect wings for
locked blades prior to power-on operation. Use a pry
bar or other tool to separate blades.
24854
Wing Deck
Cutting Blades
Blade Carrier
IMPORTANT: The wing folding lever should 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.
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
excessive vibration. See “Blade Operation
Inspection” on page 23 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.
7. Frequently inspect cutter for loose bolts and nuts.
Tighten all loose hardware as indicated in the
“Torque Values Chart” on page 50.
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.
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.