OPERATING THE BACKHOE70
BDipperstick & Bucket Lever
Pushing the lever forward will crowd out the dipperstick
and the bucket out and pulling it back will crowd them in.
Lever movement to the left will curl the bucket to fill it, and
right lever movement will dump the bucket.
Again, movement into an "X" relationship will crowd in and
fill the bucket, or crowd out and dump the bucket.
With experience, the combination of both "joystick" levers
will allow lift, swing, crowd out and spoil dumping, all in
one smooth movement, or lowering, swing, crowd in and
bucket filling with reverse movement.
BStabilizer Control Levers
The stabilizers are the only controls that may be operated
from out of the backhoe operator's seat over then only for
the purpose of mounting or dismounting backhoe from
tractor.
Be sure to stay well clear of stabilizers, arms and pads
during installation or removal process. This is necessary
because the mounting step moves up and down in
conjunction with the stabilizer cylinder.
Moving the levers downward will lower the stabilizers, and
upward lever movement will raise them.
PLACING THE STABILIZERS
To avoid personal injury:
A When working on slopes, one stabilizer may be
lower than the other.
A When digging on a hillside, always dump the
bucket on the uphill side of excavation.
A To reduce the risk of overturn on a slope, place the
spoil to the high side of the excavation.
1. Lower the stabilizers and remove the weight of the
backhoe from the rear wheels. However, one or both
rear tires should remain in light contact with the
ground. This will give the backhoe the widest possible
stance and the lowest center of gravity.
If the rear wheels are raised too high, digging depth
will be reduced and undue stress will be exerted on the
backhoe frame components.
If the slope is unusually steep, cut a level surface with
the loader and pile the spoil on the downhill side. Back
drag and pack the spoil so it will support the stabilizer
on the low side. This procedure is recommended when
a wall, tree line or other obstruction prevents placing
backhoe spoil on the high side of the excavation.
2. The loader bucket should be lowered to give the
backhoe unit a "tri-pod" stance. With the loader bucket
in ground contact, front tire bounce will not be a factor
in overall control. When possible, the loader bucket
cutting edge should be lowered vertically into the
ground surface. This will assist the stabilizers, not
allowing the unit to shift, while excavating. However,
on a slope, the bottom of the bucket should be used,
and only the side that contacts the uneven terrain. Too
much loader down pressure, on a slope, will restrict
the unit from being correctly leveled and will place an
undue twist through the loader bucket and lift arms.
(1) Dipperstick and bucket lever
(1) Stabilizer control lever, left
(2) Stabilizer control lever, right
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