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General Notice
This operation manual contains the operating and maintenance
procedures necessary to safely run your L&W compressor. We strongly
recommend that you read this manual thoroughly prior to operation and
follow all the safety precautions precisely. Damage resulting from any
deviation from these instructions is excluded from warranty and liability for
this product. Be sure to pay attention to the following points:
Fill only tanks with a valid hydrostatic test date
Never exceed the working-pressure rating indicated on the tank
Do proper maintenance of the filtration system
Do regular drainage of the condensate
Avoid contaminated air to reach the air intake
Do not exceed maximum rpm
Description of Function
The L&W compressor is a 3-stage compressor designed to fill scuba
tanks with compressed air. The air-intake is via filter. The air then enters
st
the 1
stage together with a tiny quantity of oil-vapour and is compressed
nd
to 9 bar. From there it passes a cooling pipe to the 2
stage, where it is
compressed to 65 bar. After that the water and oil are removed in a
(mechanical-expansional) separator and the air is cooled in the next
cooling-pipe before entering stage 3. There it is compressed to the final
pressure of 330 bar and then led to the next filter, where again oil and
water are separated through expansion before the air passes through an
activated carbon filter. The filter exit-port is connected to a high-pressure
hose, which ends with a pressure-gauge and a tank-connection (filling-
valve assembly).
Each stage has its own safety valve, set and sealed by the manufacturer.
The final one is adjusted to either 225 or 330 bar, depending on
specification.
3
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