185DPQ 60HP SULLAIR (HARD START)

I HAVE A SULLAIR TOW BEHIND COMPRESSOR THAT WHEN COLD SEEMS TO CRANK LONGER THAN NORMAL. I HAVE CHECKED FUEL, AIR, GLOW PLUGS AND EVERYTHING IS IN GOOD WORKING ORDER ON THE ENGINE OF THE UNIT. I HAVE EVEN GONE AS FAR AS ISOLATING THE COMPRESSOR FROM THE ENGINE.....ENGINE STARTS WITH NO ISSSUE ONCE LOAD FROM COMPRESSOR IS REMOVED (EVEN IN -30C(-22F)). MY QUESTIONS IS, IS THERE AN UNLOADER OR SOMETHING THAT SHOULD NOT ALLOW THE COMPRESSOR TO LOAD OR START BUILDING AIR PRESSURE RIGHT AWAY? I HAVE ALSO OPENED THE TAPS WHEN STARTING, MADE NO DIFFERENCE.


THANKS IN ADVANCE.

Comments for 185DPQ 60HP SULLAIR (HARD START)

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Feb 21, 2014
Hard stat
by: Doug in s.d.ca

" IS THERE AN UNLOADER OR SOMETHING THAT SHOULD NOT ALLOW THE COMPRESSOR TO LOAD OR START BUILDING AIR PRESSURE RIGHT AWAY?"

I would assume so, something that would unload at idle, like a centrifugal clutch.

I don't see a (free) manual online so don't know what it is.

There is something like sullair.justanswer.com you could try, or spend the 35 or so bucks for a manual.

Let us know what you find out, OK?

And your CAPS key is stuck.

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Sull AIr 185 Diesel Shuts down after 30 minutes and light blinks 3 times?

by Matt
(Joliet, IL)

I have a Sull Air 185 Diesel with a John Deere engine in it. The motor will run for about 30 minutes and then shut down, the light will then blink 3 times indicating Engine Oil Pressure?

We have recently serviced the whole unit and put in new filters and oil?

After doing this the unit ran for 54 minutes before shutting down?

What can be causing this compressor to be shutting down while in use?

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sullair Model C2.2 compressor dies

by wright
(beeville, texas)

I have a sullair air compressor Model C2.2 and it starts well but dies. Can you tell me what I might try?

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1979 SULLAIR 125 GPQ what oil was used etc.

by Pete Nota
(Katy TX )

i just purchased a 1979 Sullair 125 GPQ towable unit , it have a GM 2.5 iron duke gas engine and it runs really good i noticed on the air out tank a sensor is unpluged i do think this is a desicant tank , and i need to also find out what oil was used in the compressor head does anyone know where i can find parts and service manuals on this unit
Thanks

Comments for 1979 SULLAIR 125 GPQ what oil was used etc.

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Jul 17, 2013
125 gpq sullair
by: Anonymous

iam on a fiends cumputer ,i have a 125 gpq sullair unit also,iam looking for some motor parts.i have mech phone number .i donot have a email number so if you please call me i will give it to you.my number is 713 293 2375

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