Motor replacement for Champion compressors

by TJ
(Colton SD)

Champion 3z180 compressor pump (Photo: www.grainger.com)

Champion 3z180 compressor pump (Photo: www.grainger.com)

I bought 2 used compressors. They both have 3z180c champion compressors. The problem is that they have 3 phaze motors. What motor do you recomend for these compressors? I need single phaze.The 3 phase motors i got are very differant, 1 has a 5 hp with a 1 1/8 shaft and the other is a 1 1/2 hp with a 5/8 shaft. One is thermolly protected and the other one isnt. I know nothing about motors please help. Thank you, TJ

______________
TJ, your pump uses, according to the supplier Grainger, either a 3 HP or 5 HP motor.

If you have the budget, I would opt for the 5 HP motor simply because it won't have to work as hard as the 3 HP to run your compressor pump, assuming that you are using your compressor for full time, money earning, use.

If not, opt for the 3HP.

In terms of electrical motor phases, not my area. You need either to get some electrical advice here from a nice visitor that knows this stuff, or an electrician.

If you search for Champion Compressor-Pump-3Z180 as I did, you will likely find the specs for the pump immediately on the Grainger site.

They also have a tech support number and I expect would be pleased to talk with you, particularly if you plan on buying a motor.

Cheers,

Bill

Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Champion Air Compressor Issues.

old champion compressor bleeds out air pointing to unloader on older model Chamption

by Jake Neilson
(Lakemoor IL)


hey bill i enclosed a picture of me pointing to where the air comes out when pump kicks off, when pump kicks back on no air leaks, as soon as pump reaches 150psi and kicks off, air goes PSSHHHHH and comes out of a fitting with a hole with a filter screen thing. If it is unplugged, all the air leaks out till tank is empty. I dont know what is going on what do I need to replace?

______________________

I think you have a check valve that isn't seating or has failed.

Comments for old champion compressor bleeds out air pointing to unloader on older model Chamption

Click here to add your own comments

Dec 26, 2011
PSSSSH sound
by: Pcbeachrat

The Psssssh sound you here is supposed to be there,and the part is called "an unloader valve"...The check valve goes directly in the tank..the unloader releases some pressure when the compressor has filled.As far as the air leaking out, I say you have other problems in your fittings and/or connections,and is not cuased from the part where your finger is showing..that is normal.Get you some soapy water and fill the compressor up and spray EVERY connection on the rig and it's fittings.I bet you will find A leak from looking for bubbles.

__________________

Or, it might be a leaking check valve too.


Sep 29, 2011
old champion unloader
by: Rich

Its a centrifugal unloader behind the fitting, [spinning motion cause weights to extend internally and seal the control air off when the unit comes up to speeed, it stops and opens the valve back up unloading it] A better picture would tell me whether it was a schrader type or not. Some just get hung up from being rusty..
Rich

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Champion Air Compressor Issues.

champion collects excessive water

collects excessive water in air tank

___________________________
Bill says...

All water in the compressor air tanks is excessive, which is why you should drain the tank every day, and even more often if it is a production air compressor.

To see why you have water in the tank, have a look at the site map, and scroll down to Water Issue & Problems.

Lots of info for you, including some remedial tips.

Any more questions, please add a comment here.

Cheers,

Bill

Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Champion Air Compressor Issues.

Champion r-15 - my air compressor psi and motor.

by Drew
(detroit ,MI)

My 2 stage compressor reaches 60psi and thd motor slows and gets hot. Wondering if the motor is tierd. I have a champion r-15 pump and running 5hp 220v leeson motor. thanks for your help.
______________________
Hi Drew. Your compressor motor slows and gets hotter than usual as it can't handle the increasing load of compressing air into the tank against the air that's already compressed in there. In your case, that's about 60 PSI.

Things to check and the one way (check valve) between the cylinders, the check valve going into the tank, might as well check the intake valve filter, if there is sufficient oil in the sump, and if all these are OK, then you are developing a mechanical failure in the compressor itself, or the motor is getting tired.

Also, make sure that there is sufficient amperage getting to the motor. A choked supply of power (something else using too much power on the same circuit) can contribute to motor slowing and overheating.

Bill

Comments for Champion r-15 - my air compressor psi and motor.

Click here to add your own comments

Jan 03, 2011
gardner denver needs quailty control - oil issue
by: Anonymous

I purchased a low hour, two year old, 10hp horizontal, 120 gallon compressor a few dyas ago.

Days before bidding on this unit, I studied gardner denver's site and was quite pleased and hoped to win this to replace my 5hp ingersol vertical.

I won the bid, got her home and started cleaning it up.

It was purchased local from a factory dealer in 2008 right after a bad flood had hit the city for emergency purposes.

I have noticed that the grunge all over the unit, is actually belting dust which had collected to every oil leaking area of the pump, too many to list.

Factory belt alignment out over 1/8 inch, luckily the belts have minor wear and the pully's are ok.

Installer used 3/8 bolts in 7/16 slots instead of moving the pulley on the shaft.

Checked oil level, none in site glass, took out virgin oil plug and crankcase is full.
Oh gee, !!! the dude smeared silicone all over the site glass before installing and plug the holes.

All intake and exaust bolts, no where close to torque specs, and one was stripped and replaced with piss poor heli-coil job and the new bolt was in by two threads and ripped.

This is just a start, pictures have been taken and I wait to see if they will stand behind it.
What would be the cause of such extreme oil amounts coming out?
Thanks

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Champion Air Compressor Issues.