Autoquip AIR FORCE PNEUMATIC - Manual (Page 13)

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1. Scissors lifts have a maximum lifting capacity (see “Specifications” section). The
safety relief air valve has been factory set to open at a point slightly above the
rated load and allows the air to bypass into the atmosphere. Lowering loads
exceeding the rated capacity of the lift may result in excessive wear and damage
to the lift.
2. This type of lift is designed primarily for in-plant applications and is furnished with
constant pressure foot valve or hand valve controls. Actuating the "UP" valve will
cause air to enter the air bag and the lift will rise.
3. When the desired height or upward travel of the platform is attained, removing
the operators’ foot or hand from the valve deactivates the “UP” valve. The air
stops flowing into the bag and the upward
movement will stop.
4. To lower the lift, activate the "DOWN" portion of the control valve, which allows
air to exhaust to the atmosphere. Opening the down control valve allows the air
in the air bag to flow through the down valve at a controlled rate and exhaust to
the atmosphere.
5. When the desired height or downward travel of the platform is attained,
removing the operator’s foot or hand from the valve deactivates the “DOWN”
valve. The air stops flowing from the bag and the downward movement will
stop.
CAUTION!
Do not continue to activate the "UP" valve if the lift is not raising
or if it has reached the fully raised position. To do so may result
in permanent damage to the lift.
OPERATING INSTRUCTIONS