SOUTHWORTH
ZLS SERIES — FLOOR HEIGHT LIFT TABLES
9
Electrical Connections
DANGER!
The lift may use a power supply of up to 575
Volts AC. This voltage can kill you. Do not
work with the electrical parts unless you are
a qualified electrician.
1. The lift is supplied with a power cord which is 10’
long (305 cm). You must provide a two-prong outlet
within this distance fromthe lift. The circuit should
be provided with a 20 amp circuit breaker or fuse.
WARNING!
To avoid fire danger, be sure to provide a
circuit breaker or fuse.
2. The foot switch assembly is attached to the lift by
a 10’ cable (305 cm). Position the control box in a
convenient location near the lift.
3. Check the level of the hydraulic fluid in the tank.
When the lift is fully lowered, the oil should be 1/2’’
to 3/4’’ (13 to 19 mm) below the top of the tank. Add
oil as necessary.
Testing
1. Clear the area around the lift. Remove any loose
wires, lumber, or other materials which might get
in the way of the lift as it raises or lowers.
2. Warn others to stay away from the lift. Operate the
lift through its full range of travel. The lift should
rise smoothly with a quiet humming sound, and
lower smoothly and quietly. Raise and lower the lift
a few times to check the clearances around the lift
table.
WARNING!
As the lift table moves up and down, “pinch
points” are created at the places shown in
Fig. 5. If you are standing too close to the lift
when it is moving, your arm or leg may be
caught in the moving parts, and you may be
hurt. Stay away from the pinch points when
the lift is moving.
3. If the lift is lowering too quickly or too slowly, you
can change the “down speed” by adjusting the flow
control.
If you want the table top to lower more slowly, turn
the control clockwise up to 1/4 turn at a time. If you
want the table top to lower more quickly, turn the
control counterclockwise up to 1/4 turn. Don’t move
the control more than 1/4 turn at a time.
4. Test the lift with the rated load. If the lift does not rise,
and you hear a loud squealing noise, the pressure
relief valve is operating. Contact Southworth for
instructions.
WARNING!
When adjusting the flow control, always
raise the lift table and insert the maintenance
devices, as shown in Fig. 1. Do not try to
adjust the flow control while pressing the
“down” button. If you try this, the lift table
may drop suddenly, and you may be hurt.
5. As a final step, clean up all spilled hydraulic fluid.
Spilled hydraulic oil is slippery, and may present a
fire hazard. If you clean up any spilled fluid, you will
be able to tell right away if the lift begins to leak.
