44
16. Stabilizers:
a. Always extend the stabilizers to
set the frame level and vertical
when placing the machine at the
work site. Support the weight of
the rear of the tractor on the stabi-
lizers to eliminate the fl exing of the
tires during operation. Tire fl exing
will allow the frame to move if not
fully supported on the stabiliz-
ers. Movement can allow the for
binding or pinching of the frame
and reduce effi ciency or cause
mechanical problems.
b. Also use the stabilizers to set the
angle when operating on a slope.
Extend one stabilizer more than the other on a
gradual slope. Place a large block or planks under
the low side when on a steeper slope.
c. Do not excavate under the stabilizers. Removing
soil from under a stabilizer can result in crumbling of
the soil and collapse of the stabilizer / machine into
the hole. Always know the soil shearing properties
and provide suffi cient area to carry the weight of the
machine.
Fig. 45 STABILIZERS
17. Digging Action:
a. Digging With Dipper:
i. Set the bucket at the appropriate angle
as shown by profi le.
ii. Set the dipper so the bucket teeth hit
the ground approximately 2 feet (0.6
m) ahead of pivot.
Fig. 46 DIGGING WITH ARM
iii. Retract the dipper to pull the bucket
through the soil until it is full.
iv. Raise the boom and dump the bucket.
v. Repeat this procedure to continue
digging by extending the bucket 3 to
6 inches (75 - 150 mm) further each
time.
NOTE
Be sure the dipper and bucket
angles are set so that the heel of
the bucket does not hit the bottom
of the hole.
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