propel the machine. With swing shifter lever pulled
propel hydraulic control handle (e above) and turn
back in swing position, pull swing clutch lever toward
operator to swing right, push toward front to swing' left.
With propel shifter lever moved forward in propel
position, push propel clutch lever forward to travel
located at extreme right of lever stand, when pulled
forward, or pull toward operator for reverse.
toward operator, will wrap cable on boom hoist drum
and raise boom (or auxiliary gantry, when used with
backhoe). Push this lever away from operator to
When traveling over 100 feet, or
release boom hoist brake and allow boom to lower by
longer distances, the crawler idler
sprockets must be at front of crane-
shovel, and must point in direction
of forward travel.
aj. Crowd (Digging) and Retract Clutch Lever. This
lever (fig. 2-23) is a push-pull type. lever which rotates
left hand (digging) crowd drum. Pull toward operator to
wrap cable on the drum. Push away from operator to
run cable off drum (when planetary pinions are
With shovel front end attachment and
sprocket installed, pull lever toward operator to crowd
shovel into bank, push lever away from operator to
retract dipper from bank after it is loaded.
ak. Hoist Clutch and Propel Brake Lever. This lever
on hoist drum and wraps cable on drum. When this
lever is pushed away from operator, it applies the propel
brake. To lock propel brake in applied position, push
Figure 2-28. Primer pump.
Figure 2-27. Boom angle (radius) indicator,