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Posted by PaulS on February 6, 2007, 2:18 pm
my 25 gal compressor doesn't want to go above 85 psi. Maybe a faulty
regulator or ? Does anyone know where I can get a repair manual on
compressors. Mine is Craftsman.
Thanks,
Paul
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Posted by Steve Barker on February 6, 2007, 11:57 am
Is it shutting off, stalling, or just running and not going any higher? Did
it USED to go higher, or did you just get it?
--
Steve Barker
> my 25 gal compressor doesn't want to go above 85 psi. Maybe a faulty
> regulator or ? Does anyone know where I can get a repair manual on
> compressors. Mine is Craftsman.
> Thanks,
> Paul
>
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Posted by v8z on February 6, 2007, 1:25 pm
If you have the model number in the sears format (Example:106.48062890) you
can find exploded views and parts lists at
http://www3.sears.com/
Did it used to go above 85PSI?
If the motor shuts off before getting to max pressure, then suspect a bad
regulator switch.
If it justs keeps running without shutting off at the regulator switch
setting, then suspect worn rings or leaking internal valves ( most commonly
these are reed valves) if its a piston model - leaking diaphram or valves if
diaphram model. It could also be the safety/pop-off valve leaking.
Check and change oil regularly, and drain condesate regularly to prevent
tank rusting.
> my 25 gal compressor doesn't want to go above 85 psi. Maybe a faulty
> regulator or ? Does anyone know where I can get a repair manual on
> compressors. Mine is Craftsman.
> Thanks,
> Paul
>
>
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Posted by tonyg on February 6, 2007, 8:22 pm
PaulS wrote:
> my 25 gal compressor doesn't want to go above 85 psi. Maybe a faulty
> regulator or ? Does anyone know where I can get a repair manual on
> compressors. Mine is Craftsman.
> Thanks,
> Paul
>
>
There is an adjustment inside the switch box. You will likely find two
screws. If I recall one sets the off and the other the on pressure. Good
luck. tonyg
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Posted by DanG on February 6, 2007, 10:01 pm
How are you judging 85 lbs? Do you have another gauge or can you
put a tire gauge on a fitting to check it? Try to perform this
check ahead of the regulator. This would tell you what the
compressor is producing.
The regulator has little to do with the pressure that a compressor
can produce. All it does is allow delivery of the already
compressed air at a "regulated" pressure.
It would help all of us to know whether this is a new-to-you
compressor or one you've had for some time. Is this a new
development? There is box close to or actually where the cord
goes to the compressor. This box senses the maximum pressure and
shuts off the compressor and establishes the come-back-on
pressure. This thing is called a pressure switch, here is a
picture:
http://www.hardwareandtools.com/invt/6934368
These are adjustable to different settings. Many times the
differential between stop and run is not adjustable.
--
~~~~~~~~~~~~~~~~~~~~
DanG
A live Singing Valentine quartet,
a sophisticated and elegant way to say I LOVE YOU!
valentine@okchorale.org (local)
http://www.singingvalentines.com/ (national)
> my 25 gal compressor doesn't want to go above 85 psi. Maybe a
> faulty regulator or ? Does anyone know where I can get a repair
> manual on compressors. Mine is Craftsman.
> Thanks,
> Paul
>
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