6
Model ASx-900|
Owner’s Manual
|
Version no: 1
safetech.com.au
3.0 Operating Instructions
3.1
Basic Operation
The lift table is provided with a controller, which may be one of three types: -
Footswitch
Pendant
Pushbutton - surface-mounting type (for mounting to wall, pedestal)
All three controllers are the "deadman" type (i.e. the lift table only operates when the controller is
depressed).
The up travel is automatically stopped at the top of travel by an adjustable limit switch.
The down travel is halted if the safety bar (if fitted) or hinged flaps (if fitted) meet an obstruction
during descent. Down travel may be resumed when the obstruction is cleared. If the lift table is
SmartLift equipped, operating the safety bar will activate the recoil function as described in Section
3.5.1.
Both SmartLift and the electronic low voltage board incorporate a descent-reset feature. If during a
safety bar trip the down control is maintained, the descent will not continue after the obstruction is
cleared. It is necessary to release and reactivate the down control to recommence descent.
The down speed is adjustable by flow controller. The up speed is not adjustable.
Warning
: As the lift table moves up and down, "pinch points" are created where the scissor legs
cross and where the legs meet the base and platform.
Be careful and observant when operating the lift table that nobody is in danger of
becoming caught in the moving parts.
Do not stand close to the lift table when someone else is operating it.
3.2
Load Capacity
The load capacity is placarded on the sides of the platform and is also stamped into the identification
plate, located on the central cross member above the motor. For safe ongoing operation of the lift
table, ensure that the capacity placarding remains legible.
The load capacity is based on the load applied centrally and uniformly to the platform, as if the load
were a full pallet or similar. If the load is not central or if point loading is involved, please consult
Safetech before using the lift table.
3.3
Pressure Relief Valve
The hydraulic pump incorporates a pressure relief valve. Its purpose is to limit the maximum
pressure of the system and protect hoses and seals from damage caused by excessive pressure.
In normal operation it should never be activated. This valve is set before the lift table leaves the
factory and should require no further adjustment.
If you hear a squealing noise from the pump (usually accompanied by a change in pitch of the motor)
during up travel, the pressure relief valve is operating. If this occurs, stop the lift table immediately.
