devilbiss steel driver series doesn't shut down

by Jim
(Crossville, Tn.)

steel driver series contractor air compressor

Model sds150e4ttd
gauge at outlet only goes to 60psi, gauge at regulator only goes to 20psi and compressor just keeps running and doesn't shut down.

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Bill says...

Jim, the compressor doesn't shut down since the air pressure in the tank never reaches the cut out pressure level.

Please see the TROUBLESHOOTING page and the link to "will not build pressure" for some reasons and checks. Post back here as a comment after you have done those, K?

Cheers,

Bill

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Sears (DeVilbis) One out of two cylinders working but plenty of noise

by Ray Nella
(Massapequa, NY (Long Island))

All of a sudden my Sears (DeVilbis) 3 HP 30 gallon tank from 1978 sounds like it blew a gasket but is still working, albeit less efficiently. Do you think it's the head gasket or the gasket where the HP tube comes from the cylinder. How can I tell?

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Bill says...

Ray, the sound change is indicative, as you have already guessed, a gasket letting go.

The only way I know of to check is to tear down the pump. While in there, if it were my compressor, I would replace all the gaskets, and thoroughly inspect the valves as well.

Cheers,

Bill

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Dec 25, 2011
Found the Problem!
by: Anonymous

It was the intake valve/diaphram on one cylinder. Ordered repair kit for $15 plus $8 shipping and $2 tax. HYope the little srews holding the diaphram in place come out witout breaking. Gaskets look good and I'm not replacing.

Dec 24, 2011
Not head Gasket
by: Ray

Looks like intake "flapper" of thin metal wasn't sealing. Looks like they are held on by small studs with mimi nuts on them. Soaking in WD 40 and hoping they don't break trying to remove nut!

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Devilbliss IR #5020 - reaches 80lbs of pressure...

by Tim
(Kentucky)

.....and motor keeps running,won't build anymore pressure,its a devilbliss IR #5020 direct drive,seems to be pulling in plenty of air thru the intake(sucks my hand right to it)Thought it may be not enough electric so i hook a 5500 watt generator to it and the same thing happens.
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Tim, could be a number of things.

Your test with the intake suggests that the intake valve is OK, and the cylinder rings seem to be too, as you wouldn't get much suction if they were shot.

It could be the high pressure valve (pull the line from the pump head to the tank and try to block the air pressure coming out of the head with a gloved finger...

...but I suspect based on what you have written that you l have a gasket letting go inside the pump.



Cheers,

Bill

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devilbiss 432 poor air time

by rich
(az)

we have a devilbiss 432 and it takes forever to build up air do not know if we should rebuild or junk what rotation is it supposed to be facing the flywheel
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It is an oldie, Rich. Whether you repair or replace depends on how much is wrong with it.

These guys will ship you a replacement pump in exchange for your core:

www.centrair.ca/old-devilbiss-432-pump.html

These folks will sell you any or all parts:

www.devairusa.com/Devair_Pumps/Pump_Breakdowns.htm

In terms of rotation, I am not sure. I think from the parts breakdown I saw it might be CCW buy you need to double check.

Bill

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Sep 05, 2014
rebuilding sds5g8d compressor
by: Greg

We are almost complete with attaching the linkage under the fuel tank, that will allow the engine to idle after full compression is reached, not sure how or where to connect linkage on back side of slide mechanism to where?. Am I correct in attaching the link from the unloader valve to the front side of slider mechanism. our problem is the back side of the slider.
thanks for your help

Jun 15, 2013
432 rotation
by: Anonymous

The 432 rotates cow looking at flywheel side.

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