Figure 2-3. Front end attachments loaded and blocked for shipment (sheet 2 of 2).
Note. Crane boom of 50 foot length, without
The crane-shovel basic unit is
center section, or jib boom.
normally equipped as a crane, but, front end
b. Clamshell Front End Attachment.
attachments are available for conversion into backhoe,
attachment requires clamshell lagging, tagline winder,
clamshell, dragline, piledriver, and shovel front
closing and holding cables, and clamshell bucket.
operating units The conversion instructions below will
assume that basic unit has been in operation as a crane,
(a) Raise hook block to near boom point
and will list the different components required for
sheave, then lower crane boom to horizontal position.
converting to new front end attachment.