Section 3: Operating Procedures
AP-SC4060 & AP-SC4072 Skid Steer Rotary Cutters 326-765MK
12/14/18
21
Rotary Cutter Operating Instructions
Assuming all systems with the skid steer are “go” and
fully functioning, it is time to connect to the SC4060 or
SC4072 Rotary Cutter. This is done by maneuvering the
skid steer mounting plate into position under the
universal quick hitch top angle bar. Once this is
accomplished and the mower is fully supported by the
skid steer lift arms, lower mower to a point approximately
two inches above ground. Turn the engine off, set the
parking brake, and climb out of the skid steer. Lock the
latch handles down to engage the hitch pins. Connect the
hydraulic hoses to the appropriate auxiliary hydraulic
outlets and case drain making sure to keep connectors
clean. (Note: Hydraulic flow direction on all skid steers is
not the same. Make sure hoses are connected properly
or blades will rotate at a much slower speed.) Connect
the height limiting safety chain to the chassis attaching
point and restrict cutting height to no more that eighteen
inches. This completes the attachment of the cutter to the
skid steer.
The next step is to complete a pre-operation check of the
cutter. Make sure all guards, safety shields, safety
chains, and deflectors are in place. All hardware must be
in place and appropriately tightened. Damaged, severely
worn, or defective parts must be replaced prior to
operation.
You should always inspect the area you intend to cut for
debris and hazards located on the ground. No one,
including people and animals, should be allowed within
100 yards of this cutter when in operation. If someone
does approach, shut the cutter down immediately. The
blades on this cutter should never be allowed to come in
contact with objects such as wire, cable, rope, or chains
that might become entangled. These types of entangled
objects can become extremely hazardous by rotating
outside of the cutter deck housing resulting in serious
injury or death. Always inspect the area before you mow.
The best mowing results will be achieved at speeds
between 2 mph and 5 mph as ground and mowing
conditions dictate. If you are mowing in particularly tall or
dense brush, you may want to make two passes with the
first pass being higher and the second pass made as a
cross-cut at the desired cut height. The pressure gauge
option enables the operator to determine the ground
speed obtainable without stalling the cutter
.
When
operating with a pressure gauge the pressure reading
should be up to within 500 PSI of the skid steer’s output.
Example: skid steer output = 3500 PSI, if the operator
adjusts the ground speed so the pressure gauge reading
is up to 3000 PSI then the cutter will not stall. If the
ground speed causes the pressure to increase to 3500
PSI the cutter will stall and the blades will stop rotating.
Conversely, if the pressure reading is less than 3000 PSI,
the operator can increase their ground speed if desired. If
you are mowing without the benefit of the front rollers,
you will probably need to slow down significantly
especially over uneven terrain or furrows. Driving too fast
over uneven ground will cause the unit to undulate in a
forward pitching motion. The best advice is to drive slow
but keep engine speed and blade tip speed high. Once
you get the feel of it you can increase speed and
productivity.
When you do need to stop, make sure you set the park
brake, shut the skid steer engine off, and allow time for
the blades to stop rotating before you climb down. With a
little practice we are confident you will soon achieve safe
and excellent results with your new Kubota SC4060 or
SC4072 skid steer Rotary Cutter.
