craftsman 4hp 25 gal. 1993 model 919.152920 - Power Equipment Forum : Power Equipment Forums
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post #1 of 6 (permalink) Old 07-08-2012, 01:12 PM Thread Starter
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craftsman 4hp 25 gal. 1993 model 919.152920

I have had this compressor for nearly 20 years and it has run well. I just noticed that I can't get the compressor beyond 80 psi with the regulator fully turned to the + side. It will hold the the pressure and overnight drop about 20 psi as it always has done. I hear no leaks. It does seem to take a long time to get to 80 psi.. Any ideas??Thanks
Arne
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post #2 of 6 (permalink) Old 07-08-2012, 09:10 PM
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Rings are worn out or check valves in the head are worn out. Are you 100% sure the gauge is reading right? Roger
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post #3 of 6 (permalink) Old 07-09-2012, 09:35 AM Thread Starter
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compressor

Roger: I did replace the guage with the same results. The check valves..do you mean the reed valves just below the head???
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post #4 of 6 (permalink) Old 07-09-2012, 10:47 AM
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Yes. Roger
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post #5 of 6 (permalink) Old 11-30-2012, 06:02 AM
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Does anyone have the wiring color codes for the motor of this compressor? Where would the orange wire go? I am wiring for 220v
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post #6 of 6 (permalink) Old 08-28-2014, 08:23 PM
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Thank you for*your posts!*Very interesting!

Last edited by Chendler; 10-09-2014 at 06:17 AM.
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