SERVICE AND ADJUSTMENTS
Unit cycles automatically when power is on. When doing Maintenance, you may be exposed to voltage sources, com- pressed air or moving parts. Personal injuries can occur.
Before performing any Maintenance or repair, unplug the compressor and bleed off all air pressure.
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE PERFORMED BY TRAINED SERVICE TECHNICIAN.
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Before servicing:
Unplug or disconnect electrical supply to the air compressor. Bleed tank of pressure.
Allow the air compressor to cool.
To Replace or Clean Check Valve
1.Release all air pressure from air tank. See “To Drain Tank” in the Maintenance section.
2.Unplug unit.
3.Using an adjustable wrench loosen
outlet tube nut at air tank and pump. |
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Carefully move outlet tube away from | Nut | |
check valve. | ||
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4.Using an adjustable wrench loosen
pressure relief tube nut at air tank and |
| Outlet Tube |
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pressure switch. Carefully move pres- |
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sure relief tube away from check valve. |
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5. Unscrew the check valve (turn coun- | Pressure | ||||
Relief Tube | |||||
terclockwise) using a 7/8” open end | |||||
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wrench. Note the orientation for |
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reassembly. |
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6. Using a screwdriver, carefully push the |
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valve disc up and down. NOTE: The | Nuts | ||||
valve disc should move freely up and | |||||
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down on a spring which holds the |
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valve disc in the closed position, if not |
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the check valve needs to be cleaned or replaced. |
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7. Clean or replace the check valve. A solvent, such |
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as paint or varnish remover can be used to clean |
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the check valve. |
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8.Apply sealant to the check valve threads.
Reinstall the check valve (turn clockwise). | In open position nothing is visible. |
9.Replace the pressure release tube. Tighten nuts.
10. Replace the outlet tube and tighten nuts.
11.Perform the
In closed position disc is visible.
D23269 | 16 - ENG |