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OPERATION
F-4139 01/11 Operation Section 3-4
© 2011 Alamo Group Inc.
OPERATION
FILLING BUCKET
Control the bucket attitude throughout the digging cycle to
keep teeth at the proper angle for best penetration. This will
minimize dragging and scraping the bucket through the
ground.
When digging in hard-packed soil, bucket penetration can
be increased by applying down pressure with the boom
while crowding in and curling the bucket. If the crowd action
“stalls”, it may be necessary to apply lift occasionally during
the digging cycle to correct the bucket depth.
To obtain a cleaner trench and avoid the build-up of
material directly in front of the backhoe, crowd out and
completely curl the bucket while starting to lift it from the
excavation. In this way, excess material will fall back into
the excavation.
DUMPING BUCKET
To dump the bucket at the end of the digging cycle, lift the
bucket clear of the trench while crowding it out and
swinging it to the spoil pile.
As the pile is approached, dump the bucket. When the
bucket is empty, the dipstick and bucket are in position to
resume digging upon return to the trench.
IMPORTANT: Avoid constant jarring or hammering-type
contact between the spoil pile and the loaded bucket as
this may cause premature wear to the backhoe pin and
bushings.
TRENCHING BETWEEN A BUILDING & OPEN
EXCAVATORS
Start the trench at the building. Trench out halfway to the
excavation. Then, start trenching from the excavation to the
first trench. Dig toward the first trench until there is just
enough room to move the unit out from between the two
trenches.