RHINO 95HD, Operator'S Manual

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F3788-7-04 Operation Section 4-3
LEFT HAND STABILIZER
Push lever forward, left hand stabilizer lowers. Pull lever
back, left hand stabilizer raises.
RIGHT HAND STABILIZER
Push lever forward, right hand stabilizer lowers. Pull lever
back, right hand stabilizer raises.
OPERATING BACKHOE
CAUTION: To avoid possible injury, observe
the following safety rules WHEN OPERATING
backhoe.
•
Operate from backhoe operators seat only.
•
Lower stabilizers until weight of tractor is
supported by stabilizers. Do not lift tractor tires
off ground.
•
Do not dig near stabilizers.
•
Do not attempt to raise tractor off ground or
move tractor forward or backward using
backhoe dipperstick or bucket.
•
Do not lose stability by swinging bucket downhill
when positioned on a slope.
It is not difficult to become an efficient operator. Control
operating decals are located in front of control levers.
Study these decals. They will assist you in becoming
familiar with the controls.
Smooth, light handling of controls will result in the most
efficient backhoe operation.
Operate backhoe control levers to become familiar with
their speed and movements. Engine speed and PTO
RPM will determine speed of cylinder operation.
Swing boom several times to practice controlling the
speed of swing. Do not operate swing more than 45
degrees each way for the first few times. Gradually
increase the arc.
Best results are obtained by digging near center of swing
arc so material can be dumped on either side.
As operator becomes more familiar with operation of
backhoe, it will be common practice to operate two
controls at one time. For example with bucket extended
and dipperstick extended, the lift control and dipperstick
control can be operated together to bring bucket toward
operator with down pressure on it. As dipperstick
approaches operator, the dipperstick and bucket controls
can be operated together to close bucket and trap
material. At end of stroke, lift and dipperstick controls are
operated to move load up and away from operator to save
time in clearing excavation.
This dual operation of controls will speed and simplify
digging operation. Normally two or more movements will
not be equal or even simultaneous but as pressure within
the cylinders, and resistance of an operating member of
backhoe lessens, it will begin to move. It is balancing the
force of one member against another.
NOTE: Actuating bucket is the key to powerful digging.
Operating the dipperstick and bucket controls
simultaneously will insure a full bucket and prevent
wasted motion and time.
OPERATION
OPERATION
DIPPERSTICK/BUCKET
Push lever forward, dipperstick moves away from operator.
Pull lever back, dipperstick moves toward operator.
Move lever to left, bucket curls in. Move lever right, bucket
extends out.
By moving lever to one of the intermediate positions,
dipperstick can be extended or retracted at the same time as
bucket is being loaded or dumped.
Move dipperstick away and extend bucket by moving lever
forward and to the right.
Move dipperstick toward operator and curl bucket by moving
lever back and to the left.
Move dipperstick away and extend (dump) bucket by
moving lever forward and to the right.
Move dipperstick toward operator and extend bucket by
moving lever back and to the right.
The two operations of the boom and swing lever combined
with the two operations performed by bucket and dipperstick
control lever provide four simultaneous operations from the
two levers. Oil flow will go to operation which requires the
least pressure. The ability to feather valve spools and
balance pressure comes with experience resulting in
reduced cycle times.
© 2004 Alamo Group Inc.