Getting The Feel Of The Attachment; Feathering The Controls - Labounty CP 80 Safety, Operation & Maintenance Manual

GETTING THE FEEL OF THE
ATTACHMENT
Every operating part of any machine has a slightly
different "operating feel"—an individual machine
response to the movement of the controls. Before
starting the fi rst job with a new machine, it is
suggested that the operator fi nd an open spot on
fi rm, level ground safely away from other people
that's free of obstructions such as trees, buildings
and other equipment. Move the machine to this
area – and spend some time just getting to know the
"operating feel" of the machine and the attachment
(see fi gure 4-2).
This "get acquainted" time will allow the operator
to become familiar with the control levers and
attachment before beginning work.
The machine is exceedingly powerful. Do not
operate carelessly; there is potential for personal
injury and equipment damage. Be concerned about
safety when preparing to operate the new machine.
Ensure safe operation by inspecting the machine
as explained in the Getting Started Safely section
earlier in this chapter. This inspection amounts to a
common sense visual check of the machine at the
beginning of every operation. Follow a preventive
maintenance program to reduce the possibility of
costly downtime.

FEATHERING THE CONTROLS

The "fl uid" nature of hydraulic power requires a
special operating approach to the attachment that
can be described as a smooth, even technique.
The control levers should be moved in a gradual,
deliberate way rather than with jerky, abrupt
movements. Jerky operation can cause damage and
early wear to various parts on the machine, and can
also overheat the hydraulic system. For example,
as each control lever is moved forward or backward
from the center (or neutral) position, the oil fl ows
to the cylinder or motor controlling a function. The
component (boom, attachment, etc.) starts to move.
The component moves faster as the control lever
is moved further forward or backward. Holding the
lever in the forward or backward position will hold
that movement at a given rate of speed. To slow the
movement down, gradually move the lever toward
the neutral position. Movement is stopped at the
neutral position. The position is maintained until the
control lever is moved again.
CONCRETE PULVERIZERS
Feathering the controls is a technique that will
increase output and make operating the attachment
easier. When starting any motion of the machine,
move the control slightly from neutral until it starts
to move then smoothly move the control to increase
motion to desired speed. Do the same when
stopping a motion.
FIGURE 4-2
Introduction to Safety Section 4 Page 5