Figure 1-7. Shovel attachment.
b. Crane. The crane includes a revolving frame,
d. Piledriver Attachment. The piledriver attachment
rotating machinery, gasoline engine, and an operator's
cab. Lugs are provided at the front of the revolving
is used for driving piling into the ground in the
frame, to which the front-end attachments are installed.
construction of foundations, piers, and bases. The
A counterweight is installed at the rear of the revolving
piledriver is attached to the crane boom point and is
frame. The carrier in which the crane is mounted is
supported at the bottom by a catwalk.
e. Backhoe Attachment. The backhoe attachment
described in paragraph 4-3 of this manual.
c. Crane Attachment. The crane boom is used with
a hook block to lift, swing, and position heavy loads. It is
pulling the dipper toward the machine, and is used for
used also in conjunction with the clamshell and dragline
digging trenches, ditches, and similar excavations.
f. Shovel Attachment. The shovel attachment (fig.
buckets, and the piledriver. The clamshell bucket (fig. 1-
3) or dragline bucket (fig. 1-4) may be installed on the
crane boom for excavating oar moving loose material.
dipper upward and outward. and is used for digging into
Boom inserts are used to increase the boom length, or to
the side of a hill or bank.
g. Additional Components. If you need a detailed
extend the working range of the crane.
1-5
