Transcript Bob cat Skid steer loader

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How weight distribution affects skid loader
steering and stability.
The difference between Tipping Load and
Rated Operating Capacity
Understand the hydrostatic transmission.
Understand why maintenance is important.
Identify controls and their functions
Identify loader’s safety functions
Explain Safe entry and exit
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Understand the reason for different
attachments.
Understand safe maneuvering, traveling, and
working with attachment.
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With no load in the bucket, about 70% of the
machine’s weight is on the rear axels while 30%
is on the front.
With most of the load on the rear axels, the
machine easily pivots or turns on the rear
wheels.
With a load in the bucket, this ratio reverses;
most of the load is now on the front axels.
The front axels become a pivot point.
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The rated operating capacity is no more than
50% of the tipping load should be declared as
the rated operating capacity.
The tipping load for the Bobcat we will be
using is 2600 pounds.
Take half of 2600 pounds and you get the Rated
Operating Capacity of 1300 pounds.
These numbers are under normal operating
conditions.
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Some loader attachments can affect the Rated
Operating Capacity.
Never use non-approved attachments.
Never modify the loader.
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Hydrostatic transmission is based on the
transferring of fluids
This means every action you make on the
levers has a precise reaction.
The loader will react the moment you move the
steering levers.
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Never try starting the loader from outside the
cab. Everything you need is in the cab and
that’s where it should be started from.
The steering levers control forward and reverse
travel and used also used to turn the loader.
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The foot pedals control the lift arm and the
bucket or attachment.
Pushing on the top of the pedal is referred to as
toeing, pushing bottom is referred to as
heeling.
Heel the left pedal to raise the lift arms and toe
the pedal to lower the lift arms.
Toe the right pedal to tilt the bucket forward
and heel the pedal to tilt rearward.
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For safety reasons keep your feet on the pedals.
The parking brake is located between the two
control pedals.
Never exit the machine without first lowering
the lift arms and placing the attachment flat on
the ground.
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The seat is adjustable
The seat belt must be worn at all times
The seat bar must be positioned in the down
position before operating. The machine will not
run, without the bar down.
Lift arm support is another feature. All work
can be done with arms down, but if you would
need them up use the lift arm support.
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Before starting the loader you must do the
following:
Enter the cab properly and seat yourself
 Adjust the seat for comfort
 Adjust and fasten the seat belt so that the buckle is
centered between the hips and belt fits snugly.
 Make sure the parking brake is engaged
 Lower the seat bar
 Place feet on hydraulic pedals and keep them there.
Make sure pedals are in neutral.
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Set the throttle to half position and make sure
the steering levers are in the neutral position.
Always look at the instrument panel before
you begin operating
Check to make sure the hydraulics work before
arriving at your job site.
Raise and tilt the lift arms and bucket to get the
hydraulic fluid cycling.
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When the steering levers are returned to
neutral, the loader will stop.
When getting out of the machine move pedals
until they lock.
NEVER under any circumstance leave the
operator’s seat while the engine is running or
while the lift arms are in the raised position.
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Engine Oil
Engine cooling system
Hydraulic and hydrostatic fluid levels
Lift arm and cylinder pivot pins
Tire condition and pressure
Look for loose or broken parts
Fuel level
The loader’s safety features
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When fueling, the engine must be OFF.
Never use the loader or any attachment as a
work platform or a personnel carrier
NEVER permit riders!
Never start moving until you are sure that no
one is in your path. Make sure you know
where people are all around you.
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Keep lift arms down when moving or turning.
The 2 reasons are: To maintain stability and to
be able to see where you are going.
Travel up and down slopes with heavy end
pointed uphill while keeping the lift arms
down and the bucket tilted up.
Remember with no load the rear of the loader
carries the weight, with load the front is the
heaviest!
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Travel slow and keep bucket close to ground,
just high enough to clear the ground.
Go around objects rather than over them.
Keep away from drop offs! The edge could give
away and you could fall to the bottom .
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To load the bucket from a material pile, toe the
lift pedal until the lift arms are all the way
down.
Toe the tilt pedal to put the cutting edge of the
bucket on the ground.
Never ram the bucket into the material pile,
drive slowly into the material.
Remember you get the greatest amount of
power at the wheels with only minimal
movement of steering levers.
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Once you are in the pile, heel the tilt pedal to
raise the front of the bucket. Do not overload
the bucket.
With the load in the bucket, and the bucket
“up,” back away from the material .
To empty the bucket, raise the lift arms and toe
the tilt pedal until the bucket is empty.
Never travel with a load obstructing your
view.
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When dumping into a truck or bin, drive
forward slowly, raise the arms until the bucket
is just over the truck or bin.
Be careful not to spill the load onto the cab.