Front-End Loaders, Excavators, and Ditchers and Graders and
Scrapers, pages 9-11 through 1019.
Recognize the principles of loader
Which of the following loader
operational techniques provides
greater force and penetration to
loosen large rocks?
Squeezing the tip of the
rocks with the clamshell
Digging under the rocks
with the bucket
Dozing under the rocks
with the blade
Back dragging the rocks
with the clamshell
What action should a loader
operator take when loading large
rocks into dump trucks?
Drop small rocks in the dump
bed to cushion the large rocks
Gently load the large rocks
from the lowest possible height
Place a load of dirt or sand in
the dump bed to cushion the
Load in the center of the dump
bed with the clamshell
Improper loading techniques with
a multipurpose bucket can cause
unnecessary damage to the bucket.
principles of backhoe operations.
The digging depth of a backhoe
attachment is limited by what
Bucket size and length of
Length of boom and dipper stick
Bucket size and length of boom
Backhoe coupling and positive
What type of fitting allows the
easy attachment of the backhoe
to the loader?
Quick disconnect hydraulic
Manual connect hydraulic
Forced driven hydraulic
Screw pin hydraulic fittings
After the backhoe is attached to
the 515 dresser loader, the
operator should raise the boom arm
until the boom arm pivot point is
approximately how many inches from
Which of the following problems
results from setting the engine
throttle in excess of that set
for backhoe operations?
Creates excessive engine
2. Creates excessive digging
Creates excessive hydraulic
Creates excessive boom swing