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  #1  
Old 03-15-2007, 11:16 PM
UDLOSE UDLOSE is offline
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Default Blower shaft removal?

OK..First let me introduce myself...My name is Shane Gilstrap and I live in Wichita, Kansas and am a member of Sheet Metal Workers Local #29 and I have been doing sheetmetal for 14 years and have been turned out for 7 years....

I stumbled across this site and am excited to be a member and to share knowledge with other sheetmetal workers!!

Now to the problem...I am trying to remove a blower shaft from a Trane Air handling Unit that is probably at least 20 years old..The shaft is 8' Lg. and 5" dia. the squrriel cage is a single wheel with 2 seprate sets of blades...We cannot for the lifes of ourselves get the key out....My question to anyone that reads this is...Do you have any tips?

Thanks in advance
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Old 03-16-2007, 03:33 AM
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Hey welcome to the site UDLOSE - I have to ask, why are you pulling the shaft?
We had a similar instance where it started out as a bearing replacement, we subcontracted the work, the problems began when they couldn't get the new bearing on and they pounded and forced it on.. these big boys need to be exact and true (there is absolutely no room for error) and it wasn't long, minutes until the new bearings heated up and seized up / now the nightmare began getting those bearings off the shaft…too much heat applied, an old shaft that wore to the older bearings, questioned whether it was straight (true) or not, we just don’t know what the problem actually was but the facility ended up buying a new shaft? BIG BUCKS…and down time.

How old is the unit? Are you doing a bearing replacement or pulling the cage? Actually, you'll need new bearing either way?
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Old 03-16-2007, 10:59 PM
UDLOSE UDLOSE is offline
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Not exact on how old but am guessing AT LEAST 30 years old (It is in Boeing)...We are pulling the shaft and leaving the cage (Have it supported with a chain fall)...I am not sure WHY they want the shaft replaced but Spirit (Boeing) wants it done..the replacement shaft from Trane is 3800.00....we are looking into having someone else build us a new shaft..
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Old 10-25-2008, 04:52 PM
kpacha kpacha is offline
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If all elese fails use a sawzall and cut it out
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Old 10-25-2008, 06:52 PM
MattM MattM is offline
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I don't think a sawzall is going to cut through that hardened steel shaft.
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Old 10-25-2008, 08:26 PM
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You maybe right ...but then again are they all hardened? This is a trane shaft and the bearings that failed.
Attached Thumbnails
bearings_trane_139.jpg   trane_shaft_534.jpg  
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Old 08-13-2010, 02:07 PM
jnichols jnichols is offline
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The shaft is more than likely hollow, or that was the case on the last one i replaced
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Old 08-13-2010, 02:08 PM
jnichols jnichols is offline
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opps shoulda looked at date
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Old 08-13-2010, 03:30 PM
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Quote:
Originally Posted by jnichols View Post
opps shoulda looked at date
There is no expiry date on the info around here.
It's good to see some of the older posts bumped.
Welcome to the site.
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Old 08-13-2010, 08:01 PM
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Welcome to the site! No, the shaft was a solid shaft I'll post some close up pictures as I still have the shaft.
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