Husky VT6315 Air Compressor locking up at 80psi

by Jeremy
(Charles Town, WV)

I have a Husky 26 gallon upright compressor(made by Campbell Hausfeld) that I'm having problems with.


It seems to run fine until it reaches about 75 psi then it starts getting labored and eventually the motor stops turning at about 80 psi but it never shuts off. I have to manually shut it down, it sounds like it's going to die if I don't.

I'm wondering if this could be a problem with the check valve allowing compressed air back into the piston which in turn won't allow it to pump.

When I manually shut off the pressure switch I hear the air escape so I'm assuming the unloader is working but I don't know enough to be sure. Any ideas before I take it in for repair? Thanks

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Bill says....

Jeremy, the compressor motor is laboring and coming to a stop because it cannot overcome the load it is experiencing at the 80 PSI area.

Have you had any change in power supply? Any other electrical device pulling power from the same circuit at the same time the compressor is running? If you are using one, lose the extension cord and recheck performance.

If the power is clean, yes, do remove, clean and replace the check valve to see if this makes a difference.

While it is possible that there is a mechanical air compressor problem back loading the motor to stall, it more likely is motor power related, and I'm thinking either motor failing or a run capacitor that isn't working properly.

The unloader valve won't affect the run of the air compressor, just its ability to restart under load. If your compressor is running, then it likely is not anything to do with the unloader.

Cheers,

Bill

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Oct 01, 2011
Thanks for the quick response
by: Jeremy

No extension cord, no change in power and I don't have anything running on the same circuit so I doubt that's the issue.

I'm going to replace the valve just in case and see if that helps any. If not I'm assuming I will be in need of a new motor.

__________________

As noted earlier "I'm thinking either motor failing or a run capacitor that isn't working properly." Consider getting a load test done on both to ensure this is the problem before you buy a new motor, in case it isn't either. See your electric motor rebuild shop.


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Husky compressor - motor starts but can't turn the belt?

Husky air compressor-Motor starts but can't turn the belt/run.

I have a 26 gallon husky air compressor, the motor runs ok with out the belt, once the belt is properly installed the motor won't turn the belt, it seems like the piston is too hard or needs lubrication. I have no idea, Any ideas? Thank You
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Howdy... so when the compressor motor starts and the pulley is seized, what's happening? Does the breaker blow or the motor overload let go, or do you shut it off right away?

Without the belt on, can you turn the pump sheave by hand?

If not, drain the air from the tank completely and then try again.

If you cannot turn the pump pulley by hand at all, and there is no back pressure from the tank to add load to the piston inside the compressor pump, that would suggest a mechanical lock up in the pump itself.

That might have been caused by a lack of lubrication. I cannot tell you since you did not provide the model number of your air compressor.

What were the results of your checks as per above. An update here as a comment would be nice.

Cheers,

Bill

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417 270 husky air compressor making high pitched sound

by Greg
(Elizabeth NC)

Compressor was working fine...then all of a sudden there is a High pitch shrill. I turned it off after about a minute. Any ideas of what might be wrong?
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Tough one, Greg.

This is an oil less air compressor so you can't be low on oil.

Was it a metallic, metal-on-metal sound?

What was the pressure in the tank when you heard it?

Did you empty the tank and try to start it again to see where the sound kicks in? At what pressure was that if you did?

Bill

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May 03, 2015
Well, it didn't last long
by: Greg

It ran for about 6 times and the belt broke. good thing I had bought 2 belts. However, I have not replaced the it just yet. I went and bought a used Harbor freight Oil air compressor and have been using it. I still miss the big oil-less one, one day I will get the belt replaced in it.

Jul 07, 2014
Finally repaired and working!!!
by: Greg

I finally got the belt replaced. I had to heat up the Screw because of the loctite on the old screw. It was a countersunk screw. I ended up ruining a 7/32 Allen head driver. I really didn't want to heat the screw up too much for fear of ruining the pressed in bearing in the piston arm by over heating it. The Screw had to be replaced and I am thankful I have a Fastenal business here in town. After several attempts we were able to get the right size screw. Warehouse kept dropping the order or the wrong size was shipped. The guy who was helping me @ the local store was quite gracious...he finally let me have it for FREE!!
When I installed it I did use thread/loctite sealant, I did allow the loctite to setup as well before applying power.
I had a little trouble getting the belt on. I was fearful of breaking or tearing the new belt up in the installation process. However, I finally got it installed and re-assembled the remaining components. Stood back and plugged it in and it started running. I am so happy I didn't have to spend more money on a new compressor.
I hope this will help others in similar situations. Thanks.
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And thank you, Greg, for helping others.

B.

Jun 11, 2014
Lefty loosie/rightie tightie
by: Greg

Anyone can tell me which way to turn the flywheel bolt on this particular air compressor 417 270? I have bent my allen wrench no matter which way I turn it. I am going to apply heat to it tomorrow with a soldering iron. I can't use torch because the bearing has what appears a nylon innards and I am afraid to melt them. So I am going to heat the bolt and hopefully I will be able to loosen the loc-tite on the bolt. Any help I would really appreciate.

Jun 10, 2014
High pitched sound
by: Greg

I have discovered the belt is worn and frayed/broken/stretched. I purchased 2 belts one for a spare in the event it happens again. I have removed the whole pump assembly from the tank. However, I have yet to figure out which way the Bolt Holding turns (left hand or right hand threads)the piston connecting rod to the pump motor. Any help would be appreciated.

Jun 07, 2014
Loud noise
by: Greg

I think I found the problem. I took the plastic cover off of the motor. Is when I found the belt is stretched and broken. I move the pump arm and I can feel resistance and then a release. I bought a new belt It arrived week ago in the mail and I just have not had time to replace it. Hopefully I can change it out this week. It appears that I have to take the whole motor off of the top of the tank in order to replace the belt. I will let you know when I do it and how successful I am.

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Broken regulator valve on Husky 26 Gallon compressor

by James Jefts
(Merrick, NY)

Bought a 26 Gal Husky Compressor from Home Depot. The regulator valve is "stripped" and will not tighten down.

Where can I get a replacement

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James, can you actually see the air regulator, or is all you see the gauge and the knob?

Regardless, you need to get the shroud off to see how the regulator is attached.

The replacement is likely a standard regulator, one of which I suspect H.D. would be happy to sell you.

If you are not sure, take a digital photo of the existing regulator (not the shroud, the regulator itself) and upload it in a new thread, and we'll see if we can find you one.

Cheers,

Bill

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Aug 17, 2013
Stripped Regulator Screw on Husky Compressor
by: Anonymous

I fixed a stripped regulator screw by krazy gluing the plastic operator to the jam nut. This worked for 3 years or so, when the glue joint gave way. I disassembled the unit and removed the regulator. I replaces the 5/16" screw with a 3/8" -24 UNF cap screw and a hex nut to use as a jam nut. The two fasteners and a 3/8-24 tap was about $5 vs. $45 for a new regulator.

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Husky 20 gallon motor is vibrating off the mount

by Bill Sfetku
(Vancouver, Wa USA)

The motor is vibrating off the mount and requires very frequent tightening. What is causing this and how can I resolve it. It's otherwise a good reliable piece of equipment.
Somebody HELP Bill....Thanks
_________________
Bill, to me this might indicate a bearing failure in the drive or your motor, or the motor has a starting winding issue, perhaps.

First though, if it is belt driven, check to make sure the the sheaves are aligned and the belt is properly tensioned, if you haven't already done so.

Cheers,

Bill

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