 Impeller balancing ?, Stock or jury-rigged ? |
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| pgollender |
 May 23 2017, 08:23 PM
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#1
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Member  Group: Members Posts: 189 Joined: 5-July 11 From: Sacramento Member No.: 13,281 Region Association: Northern California  |
Cleaning and painting my impeller fan and noticed a little counter-balance weight pinned in the front. Factory job or P.O. attempt to balance the fan ?
All the blades are intact, no broken fins.  |
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| rgalla9146 |
May 24 2017, 06:13 AM
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#2
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Advanced Member Group: Members Posts: 4,545 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None 
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Probably original, I've seen bigger pieces of rod than that used in the same way.
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| McMark |
May 24 2017, 06:41 AM
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#3
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
And now your fan is unbalanced. (IMG:style_emoticons/default/sad.gif)
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| 6freak |
May 24 2017, 06:50 AM
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#4
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MR.C Group: Members Posts: 4,740 Joined: 19-March 08 From: Tacoma WA Member No.: 8,829 Region Association: Pacific Northwest |
QUOTE(McMark @ May 24 2017, 05:41 AM)  just gonna say I hope you marked some how ,it needs to go back together the same way it came apart and still may need to rebalance....easy fix! imo good luck (IMG:style_emoticons/default/smile.gif) |
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| pgollender |
May 24 2017, 07:48 AM
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#5
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Member Group: Members Posts: 189 Joined: 5-July 11 From: Sacramento Member No.: 13,281 Region Association: Northern California |
QUOTE(McMark @ May 24 2017, 05:41 AM) Nope: Previously marked and put back in original holes. (IMG:style_emoticons/default/aktion035.gif) |
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| bbrock |
May 24 2017, 08:51 AM
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#6
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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Do these have to be balanced at a machine shop? I have one I took apart thirty years ago and THINK I was careful to put it back together properly. But I would like to make sure before putting it back in service.
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| pgollender |
May 24 2017, 09:16 AM
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#7
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Member Group: Members Posts: 189 Joined: 5-July 11 From: Sacramento Member No.: 13,281 Region Association: Northern California |
QUOTE(bbrock @ May 24 2017, 07:51 AM) Do these have to be balanced at a machine shop? I have one I took apart thirty years ago and THINK I was careful to put it back together properly. But I would like to make sure before putting it back in service. You can do a simple static balance that will get you close,but not as good as a dynamic balance. Luckily these little fan don't have a lot of rotating weight.: Get one of these nose cones on the video and don't cut but add: https://www.youtube.com/watch?v=uCV9rGVprEses |
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