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Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series
S E C T I O N 4
OPERATION
A. METHOD OF OPERATION
T
he control valve controls the flow of air to the Air
Stroke Actuator™. As the actuator is pressurized,
the scissor legs are forced apart causing the
tabletop to rise. As air is released from the bag,
the legs collapse and the top is lowered. A factory
preset flow control ensures a smooth descent at a
controlled speed.
CAUTION!
Do not maintain the control valve in the
open position if the lift does not move
or it has reached its up or down limits.
Damage to the pneumatic system may
result.
Figure 2: Maintenance chocks
B
A
B. OPERATION PROCEDURES
In order to operate the lift, follow these operating procedures:
WARNING!
a) Load the lift only in the collapsed position.
b)
Do not
stand, sit or climb onto the lift.
c) If the lift fails to move or exhibits strange movement or sound, stop immediately.
Do not
operate the lift until it has been checked and repaired.
d)
Do not
load or unload a moving lift.
e) Obey all warning labels.
1. Read and understand all the instructions before operating. If the lift has modifications or
accessories, read and understand their functions.
2. Load the lift correctly. Refer to the attached nameplate for load capacity information.
a) Load the lift only in the fully lowered position.
b)
Do not
load or unload the lift while it is moving.
c)
Do not
exceed the maximum rated load (note that load capacity is reduced due to side or end
loading).
d) Place load in the center of table.
e) If the load is unstable or may become unstable, fasten it into position.
3. Operate the lift.
a) To raise the lift, activate the hand control valve to the “up” position. Hold the valve open until the lift
reaches the desired position or the lift reaches its full extension. The valve is spring-loaded and will
return to center (closed) when the lever is released.
b) To lower the lift, activate the hand control valve to the down position. Hold the valve open until the
lift descends to the desired height or the lift reaches its fully lowered position. Move the valve briefly to
the up position to stop downward movement.
4. Wait until the lift has come to a complete stop before unloading the lift.
5. Stand clear of the lift when operating in order to avoid injury.
