Land Pride RCP2660 Manuale Utente
29
Section 3: Operating Procedures
12/16/08
RCP2660, RCPM2660, RCP3060 and RCPM3060 Parallel Arm Rotary Cutter 316-111M
Land Pride
6.
Set tractor throttle to idle or slightly above idle and
slowly engage PTO. Start-up vibration is normal and
should stop after a few revolutions of the blade carrier.
Stop PTO rotation if vibration continues. Wait for PTO
to come to a complete stop and then dismount from
tractor to check for probable causes such as blades
locked together.
slowly engage PTO. Start-up vibration is normal and
should stop after a few revolutions of the blade carrier.
Stop PTO rotation if vibration continues. Wait for PTO
to come to a complete stop and then dismount from
tractor to check for probable causes such as blades
locked together.
7.
Once cutter is running smoothly, increase tractor PTO
speed to cutter rated PTO speed. Stop PTO rotation
immediately if vibration occurs. Wait for the PTO to
come to a complete stop and then dismount from the
tractor to check for probable causes.
speed to cutter rated PTO speed. Stop PTO rotation
immediately if vibration occurs. Wait for the PTO to
come to a complete stop and then dismount from the
tractor to check for probable causes.
8.
Optimum ground speed will depend on density of
material being cut, terrain and operator skill. If in
doubt, change gears to reduce tractor ground speed
to a comfortable level.
material being cut, terrain and operator skill. If in
doubt, change gears to reduce tractor ground speed
to a comfortable level.
Breakaway Operating Procedures
Refer to Figure 3-1:
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.
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.
original “home” position before normal cutting operations
can resume.
1.
Raise arms and deck up to clear any obstacles
located behind the cutter deck.
located behind the cutter deck.
2.
Slowly back cutter away from any obstacles that will
interfere with pivoting unit back to “home” position.
interfere with pivoting unit back to “home” position.
3.
Use tractor’s remote (breakaway cylinder) control to
pivot unit back to “home” position.
pivot unit back to “home” position.
Cylinder Shear Bolt
Refer to Figure 3-1:
A shear bolt is located at the rod end of the breakaway
cylinder. This bolt may shear under the following
conditions:
cylinder. This bolt 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.
from the obstruction, but encounters an additional
obstruction or immovable object while backing up.
IMPORTANT: Your Rotary Cutter is equipped with
free swinging cutting blades to reduce shock loads
to the cutter when striking obstacles. The cutting
blades can lock together while transporting. Always
check for locked blades before starting to cut.
free swinging cutting blades to reduce shock loads
to the cutter when striking obstacles. The cutting
blades can lock together while transporting. Always
check for locked blades before starting to cut.
IMPORTANT: Do not attempt to operate cutter in
reverse. The breakaway mechanism will function
correctly ONLY while 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.
reverse. The breakaway mechanism will function
correctly ONLY while 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.
Specifically, the operator did not raise the deck high
enough to clear the object before backing up.
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.
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.
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.
against the clevis causing a pre-loaded stress on the
bolt and the bolt to shear at a reduced breakaway force.
Shear Bolt Space
Figure 3-1
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.
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.
Un-hooking the Rotary Cutter
The following steps should be done when un-hooking the
cutter.
cutter.
1.
Park on a level solid surface.
2.
Lower cutter frame to level ground or onto blocks
supporting the frame just above ground level.
supporting the frame just above ground level.
3.
Engage tractor park brake, shut tractor engine off and
remove switch key before dismounting from tractor.
remove switch key before dismounting from tractor.
4.
Unhook control stick from connector at the cutter and
power source. Store control stick in a dry location.
power source. Store control stick in a dry location.
5.
Disconnect driveline from tractor PTO shaft.
6.
Disconnect hoses from tractor duplex outlets.
7.
Un-hook 3-point hitch from tractor. Reinstall hitch
pins, linch pins and hair pin cotters in cutter hitch for
storage.
pins, linch pins and hair pin cotters in cutter hitch for
storage.
8.
See “Cutter Storage” on page 39 when cutter is not
going to be used for a long time.
going to be used for a long time.
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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 3-1.
until nut is threaded to within approximately
1/32" of contact with clevis as shown in Figure 3-1.
IMPORTANT: Make sure transport safety chain is
attached to the Rotary Cutter deck and Float Switch,
if available, is “OFF” before un-hooking the cutter.
attached to the Rotary Cutter deck and Float Switch,
if available, is “OFF” before un-hooking the cutter.