Hydraulic Connections; Electrical Connections - Southworth LS Serie El Manual Del Propietario

Figure 3 – Using Lifting Eyes
If your lift has lifting eyes, as shown in Figure 3, use these
when you move the lift. It is best to use a chain spreader,
so the chain sections pull straight up. (You must supply the
chain and spreader.) Remove the lifting eyes once you have
positioned the lift.
Be sure to install the vented plug in the hydraulic
tank, if not the pump may be damaged.

Hydraulic Connections

(External Power Units Only – If Internal Power Unit, proceed
to step 10.)
8. Install the power unit. Install the hydraulic pressure and
the vent line between the power unit and the lift as shown
on the pit plan.
9. Blow out the hydraulic line with compressed air before
connecting it to the power unit. Replace the solid plug on the
hydraulic fluid tank with the vented plug supplied, then attach
the vent line to the vented plug.
WARNING!
Be sure that the hydraulic line will not be pinched
by the lift as it raises or lowers. If you allow the
line to be pinched, the lift may not work properly. A
hose may break, the lift table may drop suddenly,
and someone may be hurt.
It is very important to keep the hydraulic oil
free of dirt, dust, metal chips, water, and other
contamination. Most of the problems with hydraulic
systems are caused by contamination in the oil. Be
sure to flush all hydraulic lines before connecting
remote power units.
NOTICE
NOTICE

Electrical Connections

120 volt single phase lift will require a dedicated 20
amp circuit serving no other electrical devices.
Do not operate this lift with an extension cord.
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.
10. Make temporary electrical connections to the lift, as
shown in Figure 17 or 18 (for single-phase AC) or Figure 19
(for three-phase AC). This temporary set-up will allow you
to raise the lift. (Some lifts may ship with a temporary use
pigtail.)
WARNING!
The fusing requirements are shown in Table 2.
To avoid fire danger, follow these requirements.
11. On a lift designed for three-phase AC, you must be sure
the pump motor is turning in the right direction. The lift table
should start to move quickly when you press the "up" button.
If the lift table does not move in 2 or 3 seconds, don't try to
operate the lift! If this does not correct the problem, see the
troubleshooting instructions for additional information. Note:
If lift is battery powered see page 12 for charger use
information.
If you have a unit designed for three-phase AC
and you connect the power so the motor runs
backwards, the lift will not operate, and you may
damage the pump. Do not operate the lift for more
than 2 or 3 seconds if you think the motor might
be turning backwards.
Southworth Owner's Manual -- LS Series
DANGER!
NOTICE
9