Southworth APCU Series, Operating And Maintenance Manual

Page: 23 / 46

APCU Owner’s Manual 23
As you load the load enclosure, you will break one or
more of the 3 photo-eye beams at the front of the unit.
See Fig. 1. As soon as you break any of the beams,
the unit will be prevented from starting. When you are
finished loading, the controls of the machine must be
reset to return to a “Ready” condition. Be sure to back
away from the front of the unit completely, so that the
beams are not blocked.
4. As the load enclosure tilts, the top of the container
or pallet will try to fall forward. See Fig. 5. To prevent
this, you should install the retainer bar in the correct
position on the unit. When you are loading the load
enclosure, before it is tilted, the retainer bar should be
set to hold the upper part of the container or pallet. (If
the bar is set farther toward the back of the container or
pallet, it may block some of the items as they fall free.)
Notice that the bar will slide in the slots as the angle of
the load enclosure changes.
WARNING!
Always place the retainer bar in the cor-
rect position before tilting the container
or pallet. If you do not do this, the top of
the container or pallet may fall forward.
The items being loaded may be damaged.
Never try to load the load enclosure while
it is moving.
5. Before operating, be sure everyone is clear of the
unit.
WARNING!
• Do not try to lift a load that exceeds the
maximum rating. If you try this, the unit
may fail suddenly. Someone may be hurt,
and the unit and load may be damaged.
• Never allow anyone to ride on the load
enclosure while its moving.
• This unit includes two important kinds
of safety devices. The guard fences on
the sides of the unit are designed to keep
anyone from touching the moving parts of
the unit while it is operating. The photo
eyes at the front of the unit are designed
to stop the unit if anyone is standing in the
way. Do not operate the unit unless both
kinds of safety devices are in position and
are functional.
6. Operate the unit. Press the “Tilt Up” button. The
load enclosure will tilt 90 °. (The machine will complete this
part of the cycle by itself - it is not necessary to hold the button.)
CAUTION!
If the unit does not operate right away,
turn off the unit and call a qualified main -
tenance worker.
The next job is to dump the items being loaded onto
the conveyor. To do this, press and hold the “Dump
Up” button until the load enclosure dumps about half
of the load. Once this has happened, press and hold
“Dump Up” again to dump the rest of the load. (The
“Dump Up” control will only operate while you are
actually pressing it.)
CAUTION!
Avoid “bumping” the load enclosure into
position by pressing the “Dump Up” con-
trol many times for short periods. This
will cause the hydraulic equipment to wear
much more quickly.
7. Once the load has been dumped, lower the load
enclosure. Press the “Down” button. The load enclo-
sure will lower to the “Tilt 90°” position, then lower the
rest of the way to the floor. (Once you press the “Down”
button, it is not necessary to hold it.)