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Hunter Zephair A-42 Restoration  Rate Topic 
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 Posted: Thu Jun 28th, 2018 05:24 pm
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Sam Swartz
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Gentlemen,
I am restoring an A-42 Zephair that has been in my family since the mid-1940s.  All works and all turns regardless of the poor storage for the last 20 years.  My father had it mounted in a box on wheels to move air in a warehouse. I will be using it in my garage the same way.  Although the motor runs, I have it at a motor repair shop to check it out and replace parts as needed.  I am at the stage with the actual fan where I will disassemble to replace, clean etc bearings.  The fan will be media blasted and painted.  A new box and new big casters will be put together.  I want to be able to roll it outside to blow bad weather away :D.

My question....... before I start the disassembly I would appreciate tips on removing the fan pully and blade shaft.  I see two screws and a set screw.  My experience tells me that there may be details helpful to know due to my lack of experience.  If you know how this best comes apart I will be grateful. Here are some pictures of my currently dirty fan.







 

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 Posted: Fri Jun 29th, 2018 01:56 am
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Andrew Block
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Blade and pulley are both set screwed on. My pulley on an A-48 had 2 set screws and just slid off after. The blade should do the same but why remove it if you don't need to. Force some oil down those holes in the center bearing.

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 Posted: Sun Jul 1st, 2018 06:02 pm
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Sam Swartz
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Andrew,
Thank you for your reply and info.  Very appreciated.

Why remove the shaft and pulleys?  
This fan has been under an outside shelter for over twenty years.  
Prior to that I suspect it received little lubrication maintenace.  It seems that a 
bearing clean-up or replacement might be a good idea. I do understand your point......... "if it ain't broke...."

The other reason is I am going to have the rusty fan parts and fan housing media blasted prior to paint.  

It is warm here in north central NC today.  I could use this fan right now!

Thank you again,

Sam 

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 Posted: Mon Jul 2nd, 2018 03:05 am
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Andrew Block
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I honestly never took this generation of Zephair apart. The later one had a ball bearing shaft that was basically a clam shell, bolted together. The ones like yours I don't know, but I think they were ball bearing. If it spins freely, I'd oil the crap out of it and go with that!

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 Posted: Mon Jul 2nd, 2018 05:44 pm
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Sam Swartz
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Thanks Andrew,
I worry about using the fan and having the 75+ year-old bearing fail.  I need to take it apart to clean the
whole fan anyway.  I'll let you know how it works out.  

Appreciate your response and advice,

Sam

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 Posted: Mon Jul 2nd, 2018 08:32 pm
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Andrew Block
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If it fails, it fails I figure and then you replace it. Removing the shaft would give you access to determine the condition of the bearings. I just don't know how you get them out.

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 Posted: Mon Nov 22nd, 2021 03:29 pm
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Sam Swartz
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Three years ago I began the restoration of my father's Hunter 42" Zephair. I had the motor checked out with new bearings etc and then life intervened and was put aside. I am back at it and have begun disassembly to have media blasting, and to replace bearings. I am hoping to benefit from the experience on this forum.

I have removed the keyed pulley and the fan blade assembly. The fan is bolted to a hub and the keyed hub is held to the shaft by a set screw. The keyed fan pulley is also held on the shaft by a set screw. I removed the set screws and then used an automotive jaw puller. They came off with no issues. The shaft housing has a screw on each end of the shaft housing and I presume these are lubrication ports.

Both ends of the shaft housing appear to have inserts and are flush with the end of the housing. This must be how the bearings are accessed.

I am certain many of you have way more experience than me. My question is how are these removed so I can get to the bearings? I am concerned if I just try to pry it out I may damage the tight fit/seal.

Thanks for your help.

Sam





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 Posted: Fri Dec 3rd, 2021 06:20 am
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Brian Hicks
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Replied to your other post.

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