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Clamping with Hydraulic Thumb
USING BUCKET - Continued

Operator Manual For Hydraulic Excavator Model 230Lcr And Model 230Lcrd With Rock Drill
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TM 5-3805-280-10
Operating the Machine
USING BUCKET
ARM DIGGING: For most general excavating, leveling
material, and digging trenches.
To begin excavating, position arm in vertical position and
then move it away from machine approximately 0.61 m (2
ft).
Using mainly the arm cylinder (A), retract the arm. As the
bucket fills, curl the bucket while retracting the arm. The
first cut should be approximately 1.2 m (4 ft) long and
75--100 mm (3--4 in.) deep. Remaining cuts should be
approximately 1.2 m (4 ft) long and 100--150 mm (4-6 in.)
deep.
Continued on next page
TX,35,FF2325 1928JAN921/3
7-23


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