enables it to operate in areas where wheeled front-
semi-grouser shoes (fig. 9-3) that permit it to work on
end loaders cannot go. The crawler-mounted front-
firm ground with little damage to the surface.
end loader (fig. 9-2) has a lower speed than a
rubber-tired front-end loader, and this decreases
its mobility; however, the crawler-mounted front-
end loader can be operated on side slopes of up to
Attachments contribute to the efficient performance
35 percent and on front slopes of up to 60 percent.
of front-end loaders. Some loaders used in the NCF are
The hydraulic system provides positive control of the
procured with a bucket, forklift, and backhoe attach-
front-end loader, and the crawler tracks are normally
ments (fig. 9-4). These attachments allow the front-end
Figure 9-2.-Crawler-mounted front-end loader.
Figure 9-3.-Semi-grouser shoe.