Gradall G660 Operator's Manual page 25

Your Gradall has sufficient power to permit a fast efficient digging cycle. The pro-
cedure on the following pages describes a typical cycle in separate steps; as you
gain experience, combine control functions for a smooth cycle with no lost time.
If your unit is equipped for variable hydraulic flow (see page 7) always use AUTO-
MATIC (variable flow) for the most efficient digging cycle. Use LOW for functions
requiring precise control (load handling, etc.).
WARNING
Know and understand controls and instru-
ments before operating the Gradall.
A Raise Boom
B Lower Boom
C Tilt Boom Clockwise
D Tilt Boom Counterclockwise
E Retract Boom In
F
Extend Boom Out
G Open Bucket
H Close Bucket
I
Swing Boom Left
J
Swing Boom Right
WARNING
Always keep hands on levers in case of
need to react quickly in emergency.
TO MAKE A TYPICAL GRADALL CUT
IMPORTANT
1.
. . . make sure that the engine is always running at
full throttle for Gradall operation.
2.
Pull back on left lever to lift boom (A) from boom
rest. Be sure to raise boom far enough to clear cab.
21
continued . . .