Air Compressor Problem - Motor Stalls
in [Repair]
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From: Sparks Fergusson on 4 Mar 2010 13:18 Meat Plow wrote: > >Compressor binding up. I can turn it easily by hand, so it doesn't appear to be binding. However, I don't have an easy way to check it when it's at full load. Any suggestions? Thanks!
From: Sparks Fergusson on 4 Mar 2010 14:35 Bennett Price <bjprice(a)cal.berkeley.edu> wrote: >> Thanks! >Do you know for sure that your gauge is correct? Maybe the compressor >and pressure switch are fine. Well, it's been working for a long time, but over the past few months has been exhibiting the stalling issue. I guess the guage could be wrong, but I kind of know what 120psi "feels like" and it's not getting up to what it used to, either by the guage or by feel.
From: GregS on 4 Mar 2010 14:53 In article <4b900ac7.22422346(a)news.eternal-september.org>, hatespam(a)invalid.invalid (Sparks Fergusson) wrote: >Bennett Price <bjprice(a)cal.berkeley.edu> wrote: > >>> Thanks! >>Do you know for sure that your gauge is correct? Maybe the compressor >>and pressure switch are fine. > >Well, it's been working for a long time, but over the past few months >has been exhibiting the stalling issue. > >I guess the guage could be wrong, but I kind of know what 120psi >"feels like" and it's not getting up to what it used to, either by the >guage or by feel. The compressor speed does not slow down normally, it just starts to sound a bit different under load. greg
From: Sparks Fergusson on 4 Mar 2010 15:09 Meat Plow wrote: >Current draw. 1/3 horse shouldn't draw more than 7 amps at 120 volts >or 3.5 amps at 240 volts. Nameplace current rating is 6.0 amps (I'm running on 120 volts.) I measured about 5 amps at startup (0 psi) rising to close to 6 when it stalls. When it stops turning, the current actually drops back closer to 5 amps, then increases as the motor starts turning again. The motor is also hot to the touch after pumping all the way up. I can hold my hand on it for maybe 6 or 8 seconds. I don't know if that's different from how it used to be, though. Thanks!
From: Sparks Fergusson on 4 Mar 2010 15:12
zekfrivo(a)zekfrivolous.com (GregS) wrote: >The compressor speed does not slow down normally, it just starts to >sound a bit different under load. It didn't used to, that's for sure. Now, it slows all the way to 0. :( |