CATERPILLAR
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COMPETITION
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HYDRAULIC MOTOR/BRAKE SYSTEM
- The hydraulic parking brake is incorporated into the motor and features
a spring-applied, hydraulically released wet multiple disc brake pack for
maximum braking performance and component life.
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HYDRAULIC MOTOR/BRAKE SYSTEM
- The competition's geroter style motor, though much less expensive to
use in manufacturing, requires a lot more hp to deliver an equal amount
of torque to the ground.
- The geroter style motor utilizes a deep-splined center shaft that gyrates
inside of a larger cavity; the system is much less efficient and much
noisier than that of a radial piston motor.
- Their parking brake assembly consists of an electronically actuated
solenoid valve that drops a plunger down into a moving cog (located in
the central mounted chain case) to brake the machine.
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HYDRAULIC ASSEMBLIES
- Caterpillar's large variable displacement, axial piston drive pumps are run
directly off of the engine for max efficiency and torque advantage (no
belts, no hp loss).
- Because Caterpillar actuates these pumps with hydraulics, the system is
able to compensate the load without operator intervention; this
allows the operator to maximize usable torque to the ground
with maximum aggressiveness and concentration on the work
tool.
- The XPS™ (Extreme Performance high flow) system features a
4,200 psi axial piston pump that is load-sensing pressure
compensating for maximum performance in high-production
complex hydromechanical work tool operation.
- O-ring connections on all hydraulic connections.
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PUMP ASSEMBLIES
- The competition uses smaller axial piston pumps and an inefficient
belt-drive for the pumps/cooling system.
- Because they use mechanical levers to actuate the
pumps, the operator must back off of the controls in a
load situation or he/she will kill the machine. This
forces the operator to take his concentration away from
the work and doesn't allow him to maximize the
machine's capabilities.
- Their high flow system will increase flow to the tool but
doesn't have extra pressure or load-sensing ability for
tougher applications.
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CONTROL SYSTEM
- Caterpillar's short-stroke, low effort pilot controls allow for more
comfortable operation to help reduce late-shift fatigue and provide
enhanced control.
- All direction control is accomplished with the left hand only; this
simplifies operation and improves control. (Alternate controls are
available as an option.)
- The standard foot throttle allows for smoother/faster operation while
reducing fuel consumption and noise.
- The machine's exclusive anti-stall system allows operators to
aggressively concentrate on loading the bucket while the machine
automatically maximizes drawbar power and prevents killing the engine.
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CONTROL SYSTEM
- The competition still utilizes long stroke levers for direction control
which can get tiring toward the end of a long shift.
- Standard controls also require the use of two foot pedals which are hard
for beginners to modulate, introduce extra fatigue, and require operators
to coordinate the actions of four different limbs.
- Their skid steers are typically run at full throttle which introduces extra
noise, fuel consumption and “bucking”.
- Since the pumps are actuated mechanically, no anti-stall feature is
available.
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HIGH-PERFORMANCE COOLING SYSTEM
- Caterpillar's hydraulically driven fan provides for maximum efficiency
and cooling power as the fan continues to cool even in low rpm.
- In addition to being very efficient, the hydraulically driven fan allows
for unmatched serviceability as the radiator/hydraulic cooler tilts up
and out of the way.
- The hydraulic tank holds 9.2 gallons of oil and features a baffle-style
design that forces air out of the oil and maximizes air-to-tank contact for
maximum cooling.
- The hydraulic oil cooler and radiator have a side by side design allowing
cool air to flow through each for maximum cooling performance.
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COOLING SYSTEM
- The competition drives the cooling fan mechanically through a
system of belts, idlers and shafts (the engine drives a belt, which
drives the pump idler, which drives another belt, which drives the
fan idler, which turns the shaft, which drives the bevel gear to shift
the power to the fan).
- With the hydraulic oil cooler stacked directly on top of the static
radiator, their serviceability and cooling performance is inhibited.
- They also use a much smaller and simpler hydraulic tank which puts the
machine at a greater risk of over-heating and/or cavitation.
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AXLES/CHAINS
- Caterpillar protects the large axle bearings with a high-tech triple lip
wheel seal in order to keep out dirt, twine and wire.
- The axle flange penetrates deep into the hub in order to block harmful
material from reaching the seal.
- The maintenance-free axle is permanently sealed and lubricated.
- Each axle housing is bolted to the mainframe allowing for unmatched
service and easy chain adjustment.
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AXLES/CHAINS
- The competition uses a simple, single lip seal for the protection of the
outer bearing and has no inner seal.
- Bearings are lubricated with the central chain case oil making side hill
operation harmful to the machine. And, if a bearing does fail, the other
seven bearings are more prone to failure as bearing parts can enter the
central chain case.
- Their long axles are more susceptible to bending.
- Chains are not adjustable and take significantly more time to service
since the axle housing is welded to the main frame and the chains are
located in the center of the unit.
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LOADER LINKAGE
- Caterpillar's loader arms are
designed to minimize the linkage
bend in order to ensure maximum
strength and optimum visibility.
- Caterpillar's vertical lift models
feature a shorter vertical link for
lower torque loads on the pin and
also disperse the stress through a spherical ball joint that holds much
tighter than traditional cantilevered vertical pins.
- The loader arms fully protect the bucket cylinders from damage.
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LOADER LINKAGE
- The competition's loader arms have nearly a 90
degree bend around the frame which creates a weak
point in the arm structure.
- The competition's smaller machines have high
stress areas around the centrally mounted tilt cylinder,
while their larger models have highly exposed dual tilt
cylinders.
- Their vertical lift models are not ideally built for tough applications as
the loader arm link is very long and cantilevered.
- The competition's smaller machines also have a bucket pin that is
sucked into a tapered bore with a bolt vs. a flagged and supported pin.
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SERVICEABILITY
- Caterpillar's rear serviceability is unmatched due to the flip-up cooler/
radiator package, giving full access to all sides of the engine.
- The major maintenance intervals on the machine are double those of
most competitors (e.g. 500 hour engine oil service interval).
- The slotted axle housing makes chain adjustment much easier.
- There is no parking brake assembly or mechanical levers to work around
underneath the cab; simply remove two bolts from the front of the cab
and tilt for unparalleled access.
- The Caterpillar pump stack features very easy access as the pumps are
run directly off of the engine.
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SERVICEABILITY
- The competition features excellent access to one side of the engine;
however, the engine must be pulled to do any major work as the muffler,
cooler and radiator are all statically stacked on top of the engine.
- With the axles welded directly to the mainframe, chain adjustment is
impossible and chain replacement is a much more difficult job.
- Once you remove the parking brake assembly and the mechanical
steering assembly, it is still incredibly difficult to access the pump stack
for any major repairs as the pumps are recessed far behind the engine,
driven by a short v-belt.
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TRACK SYSTEM
- The Caterpillar track system is a suspended undercarriage that was
designed specifically for high speed operation over rough terrain,
significantly reduced impact loads on machine/track components, and
more usable flotation.
- There is no steel in the track. A steel inserted bearing in the rubber-faced
idlers ensures unmatched track life and reduced noise.
- Caterpillar Multi Terrain Loaders also feature up to 98” of track length for
maximized grade ability, stability and flotation.
- The track system runs off of an internal drive which has proven to be
much easier on the track than other direct-drive steel sprocket options.
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TRACK SYSTEM
- The competition's track design is very similar to that of the low-speed
mini hydraulic excavators. The steel wheels are mounted directly to the
roller frame which is bolted to the main frame with no suspension. The
steel wheels impact on the rubber coated, steel inserted track resulting
in greatly increased impact loads for shorter machine/track life and a
much rougher ride.
- Steel rollers riding on a rubber coated, steel inserted track cause track
delamination, resulting in a very rough ride.
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