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Section 4: Operating Procedures
Breakaway Instructions
Refer to Figure 4-2:
The deck and parallel arms are designed to breakaway
should the cutter head make contact with an immovable
object or irregular terrain during forward travel. This
"breakaway" feature will protect the cutter against
structural damage by allowing the deck and parallel arms
to pivot backwards.
Upon breakaway, the cutter head must be reset to original
"home" position before normal cutting operations can
resume.
IMPORTANT: Do not attempt to operate the cutter
backing up. The breakaway mechanism will
function correctly ONLY while the tractor is moving
forward. Cutting while backing up may cause
structural damage to the parallel arms and deck if
cutter head strikes a solid or immovable object.
1.
Raise arms and deck up to clear any obstacles
located behind the cutter deck.
2. Slowly back cutter away from any obstacles that will
interfere with pivoting unit back to "home" position.
3. Use tractor's remote (breakaway cylinder) control to
pivot unit back to "home" position.
Shear Bolt Replacement
Refer to Figure 4-2 on page 36:
The shear bolt located at the rod end of the breakaway
cylinder may shear under the following conditions:
•
After breakaway, the operator backs the tractor away
from the obstruction, but encounters an additional
obstruction or immovable object while backing up.
Specifically, the operator did not raise the deck high
enough to clear the object before backing up.
•
The operator tried to reset the deck and parallel arms
by backing the tractor into an obstruction rather than
using the tractor's remote cylinder control.
•
The shear bolt has become fatigued after repeated
breakaway and reset cycles.
•
The shear bolt self-locking nut has been tightened
against the clevis causing a pre-loaded stress on the
bolt and the bolt to shear at a reduced breakaway
force.
Replace shear bolt with correct replacement part (Land
Pride Part No. 802-885C). A substitute shear bolt may
result in damage to the parallel arms and/or main frame.
A single replacement part is included with each cutter
and is located on a bracket adjacent to the upper 3-point
hitch.
IMPORTANT: Install self-locking nut onto shear bolt
until nut is threaded to within approximately 1/32" of
contact with clevis as shown in Figure 4-2.
11/2/18
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Tractor Shutdown Procedure
The following are basic tractor shutdown procedures.
Follow these procedures and any additional shutdown
procedures provided in your tractor Operator's Manual
before leaving the operator's seat.
IMPORTANT: If parking tractor with attached cutter
folded up, make sure transport safety chain is
hooked to the deck and the float switch, if available,
is in the "OFF" position.
1.
Reduce engine speed and disengage power take-off
if engaged.
2. Park tractor and implement on level, solid ground.
3. Lower implement to ground or onto non-concrete
support blocks.
NOTE: 3-Point arms cannot be lowered if Kubota
Stabilizer Kit is attached to the cutter and tractor.
4. Put tractor in park or set park brake, turn off engine,
and remove switch key to prevent unauthorized
starting.
5. Relieve all hydraulic pressure to auxiliary hydraulic
lines.
6. Wait for all components to come to a complete stop
before leaving the operator's seat.
7.
Use steps, grab-handles and anti-slip surfaces when
stepping on and off the tractor.
RCP2660, RCPM2660, RCP3060 & RCPM3060: Parallel Arm Rotary Cutter: 316-111M:
37
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