AC compressor motor

[SRU1436]

I am replacing the compressor motor on my AC unit. I’ve come across this color that appears to thread on the shaft to hold on the fan. First time replacing this, correct me if I’m wrong, but that collar does thread on the shaft? It appears too. I’ve halfway attempted to take it off with cobra pliers, it’s not budging. I don’t want to booger it up, so I’m checking with you guys. Thanks for the help.

 

[Bert_]

That the fan motor not the compressor.

The set screw is the only thing that holds it to the shaft. Pretty common for them to rust on. Probably need to use a puller to get it off

 

[Walkers]

Most definitely not threaded. Try tapping the center with a punch while somebody holds the fan close to the hub from behind. Don't mushroom the shaft though, it makes disassembly much more difficult.

 

[SRU1436]

That the fan motor not the compressor.

The set screw is the only thing that holds it to the shaft. Pretty common for them to rust on. Probably need to use a puller to get it off

youre Right I meant fan motor.

 

[SRU1436]

Thank you, I’ll try a puller.

 

[fitter30]

Hacksaw the shaft off. With a pipe ****** or a deep well socket turn blade over on cement put ****** down to receive shaft hammer shaft down 3/4"after soaking it with wd40 or like. Clean shaft even the set screw indentation. Flip blade back over spray with wd40 or like tap shaft back through and use a punch. Or but a puller that holds the hub.

https://www.google.com/aclk?sa=l&ai=DChcSEwjE7MbBuIf-AhV-EK0GHY4yDbcYABALGgJwdg&sig=AOD64_20RJ1QVpxRnZkmH1mIrjopfdt6xQ&ctype=5&ved=2ahUKEwj0mb3BuIf-AhU-IzQIHaNiBzYQwg8oAHoECA0QBg&adurl=

 

[PoorUB]

Yup! I would saw the shaft off close to the motor, emery cloth and polish of the shaft. Drive the shaft into the fan hub until the polished portion is in the fan hub. Polish the stub sticking out that was in the hub and pull it out with your fingers.

A puller will do too, but often the puller will bend up the fan. I got where I could do the cut and polish maneuver in a minute or two. Less time than it would take to screw with a puller!

 

[SRU1436]

Yup! I would saw the shaft off close to the motor, emery cloth and polish of the shaft. Drive the shaft into the fan hub until the polished portion is in the fan hub. Polish the stub sticking out that was in the hub and pull it out with your fingers.

A puller will do too, but often the puller will bend up the fan. I got where I could do the cut and polish maneuver in a minute or two. Less time than it would take to screw with a puller!

I’ll try that method first, I was thinking about how the puller may cause damage. Thanks for the insight

 

[PoorUB]

I’ll try that method first, I was thinking about how the puller may cause damage. Thanks for the insight

You could drive it straight through, but hammering on the shaft will mushroom the end, that is why you polish what you can, drive it one way, polish the rest and it will practically fall out of the fan hub.

 

[Milton Shaw]

The correct puller is a setscrew puller that only attaches to the fan hub not a leg puller that pulls from the outside of the fan center. Should be able to pull the blade without any damage. Do make sure the setscrew is all the way out and use some lubricant on it.

 

[SRU1436]

I took the old motor apart, separated everything in preparation of sawing off the shaft. While looking at exactly where I was going to cut the shaft, the fan slide off the shaft. Not sure if it was from the pub blaster I put on yesterday or what, but needless to say it came right off. I live in a mild climate in California so there was no rust. Put the new motor in today and got everything back to get.

I appreciate everyones input, thank you.

Matt