Westward Operating Instructions and Parts Manual | Model 3JR70A |
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Portable Air Compressor
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 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 A TRAINED SERVICE TECHNICIAN.
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.Loosen the nut on the outlet tube and move the outlet tube to the side.
4.Unscrew the check valve (turn counterclockwise) using a socket wrench.
Outlet Tube
Nut
Check
Valve
5.Make sure the valve disc moves freely inside the check valve and the spring holds the disc in the upper, closed position. The check valve may be cleaned with a solvent, such as paint and varnish remover.
Screwdriver In open position nothing is visible.
In closed position disc is visible.
6.Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).
7.Replace the outlet tube and tighten the nut.
8.Perform the
Operation section.
TO REPLACE REGULATOR
1.Release all air pressure from air tank. See "To Drain Tank" in the Maintenance section.
2.Unplug unit.
3.Using an adjustable wrench remove the gauges and quick connect from the regulator.
4.Remove the regulator.
5.Apply pipe sealant tape to the nipple on the standpipe.
6.Assemble the regulator and orient as shown.
14- ENG