WEN 22040 4 Gallon Twin Tank Air Compressor - Manual (Page 13)

General Overview
1. To compress air, the piston moves up and down in the cylinder. On the down stroke air is
drawn in through the valve inlet. The discharge valve remains closed. On the upstroke of the
piston air is compressed.
2. The inlet valve closes and air is forced out through the discharge valve, through the Check
Valve, and into the Air Tank.
3. Working air is not available until the compressor has raised the tank pressure above that
required at the air service connection.
4. The air inlet filter openings must be kept clear of obstructions, which could reduce air
delivery of the compressor.
Air Pressure Adjustment
1. Your Air Compressor is supplied with an Air Pressure Regulator. This Regulator adjusts the
air pressure.
2. To increase air pressure, turn the Air Regulator clockwise.
3. To decrease air pressure, turn the Air Regulator counterclockwise.
4. The Air Regulator gauge will show the current pressure selected.
MAINTENANCE
Daily (or before each use)
1. Check oil level.
2. Check for any unusual noise or vibration.
3. Be sure all nuts and bolts are tight.
Weekly
1. Clean breather hole on Oil Breather Cap.
2. Drain
water from the Air Tank through the Drain Valve.
3. Keep Air Filter clean at all times. Do not operate your Air Compressor with the air filter
removed.
4. A dirty Air Filter will not allow your Air Compressor to operate at full capacity. Before you
use your Air Compressor, check the Air Filter to be sure it is clean. If it is dirty replace the
filter element.
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