6. adjusting compressor air pressure – Miller Electric OM-4409 User Manual

Page 60

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OM-4409 Page 56

10-6. Adjusting Compressor Air Pressure

803 228

Tools Needed:

Check compressor air pressure using

air pressure gauge known to be accu-

rate. If necessary, adjust air pressure

as follows:
1

Screw

Loosen jam nut securing screw. Turn

screw clockwise (increase pressure)

or counterclockwise (decrease) until

pressure is 125 psi (862 kPa).

.

Maximum weld output is reduced
if compressor air pressure is set

above 125 psi (862 kPa).

Tighten nut.
2

Pressure Relief Valve

Pressure relief valve opens and re-

leases pressure at 150 psi (1034

kPa). The pressure relief valve is not

adjustable.

1

2

5/16, 3/8 in

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