SERVICE AND ADJUSTMENTS
Unit cycles automatically when power is on. When doing Maintenance, you may be exposed to voltage sources, compressed air or moving parts. Personal injuries can occur. Before per-
forming 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.
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 outfit.
3.Using a phillips screwdriver remove the air filter cover.
6.Using an adjustable wrench loosen pressure relief tube nut at air tank. Carefully move pressure relief tube away from check valve.
7.Unscrew the check valve (turn counterclockwise) using a 7/8” open end wrench. Note the orienta- tion for reassembly.
8.Using a screwdriver, carefully push the valve disc up and down. NOTE: The valve disc should move freely up and down on a spring which holds the valve disc in the closed position, if not the check valve needs to be cleaned or replaced.
Screwdriver
In closed position disc is visible.
In open position nothing is visible.
4. Remove the rear shroud using
5.Using an adjustable wrench loosen outlet tube nut at air tank. Carefully move outlet tube away from check valve.
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Outlet Tube |
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Pressure |
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Check | |||
Relief Tube | Valve | ||
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9.Clean or replace the check valve. A solvent, such as paint or varnish remover can be used to clean the check valve.
10.Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).
11.Replace the pressure release tube. Tighten nut.
12.Replace the outlet tube and tighten nut.
13.Replace the shroud and air filter.
14.Perform the
Nut
D22130 | 14 - ENG |
