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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Tips to Loosen Electric Motor Bolts?
Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding.
Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. Thanks Ken |
#2
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Tips to Loosen Electric Motor Bolts?
On Mon, 06 Oct 2014 07:23:56 -0700, KenO wrote:
Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding. Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. Thanks Ken Had a similar problem with part of a sewing machine that had got gummed up. Only thing that helped was to put it in front of a fan heater until the whole machine was almost too hot to handle! Mike. |
#3
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Tips to Loosen Electric Motor Bolts?
On 06/10/14 10:23 PM, KenO wrote:
Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding. Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. Thanks Ken As said some localised heat (gas torch) preceeded by a squirt of some penetrant like wd40, penetrene etc and use a correct size socket or ring spanner. |
#4
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Tips to Loosen Electric Motor Bolts?
Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding. Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. As said some localised heat (gas torch) preceeded by a squirt of some penetrant like wd40, penetrene etc and use a correct size socket or ring spanner. Hitting it with a gas-torch flame, after having sprayed it with a penetrant which is made up of a high percentage of flammable petroleum distillates? That seems like a Really Bad Idea. Not quite as bad as the fabled "Hey, Bud, I think my truck's gas tank is empty... hold my beer while I light a match and see if I can see any gasoline down the filler pipe" but it's headed out in that general direction. I'd use either heat, or a penetrating oil, but not both. In the OP's situation, since a high-strength threadlocker was mentioned, I'd go with localized heat - some of the Loctite (e.g.) formulas are designed to soften when heated in this way. |
#5
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Tips to Loosen Electric Motor Bolts?
On Monday, October 6, 2014 7:23:46 PM UTC-4, David Platt wrote:
Hitting it with a gas-torch flame, after having sprayed it with a penetrant which is made up of a high percentage of flammable petroleum distillates? That seems like a Really Bad Idea. Good idea if you like making exciting youtube videos.. When torching stubborn fasteners I follow it up with a rub with a piece of paraffin. When the fastener is hot enough, it wicks the wax in the threads. Nice thing about this is that you don't need to keep reheating the fastener if it's got a lot of turns. |
#6
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Tips to Loosen Electric Motor Bolts?
On 08/10/14 6:33 AM, John-Del wrote:
On Monday, October 6, 2014 7:23:46 PM UTC-4, David Platt wrote: Hitting it with a gas-torch flame, after having sprayed it with a penetrant which is made up of a high percentage of flammable petroleum distillates? That seems like a Really Bad Idea. Good idea if you like making exciting youtube videos.. When torching stubborn fasteners I follow it up with a rub with a piece of paraffin. When the fastener is hot enough, it wicks the wax in the threads. Nice thing about this is that you don't need to keep reheating the fastener if it's got a lot of turns. Yeah, well I was assuming some experience there. Naturally the idea was to leave it soaking overnight or whatever for a few hours and then trying the heat. A method I used for many years (even before the fetish of regaling others with films of self stupidity). Also the method was applied after the localised heat was tried. |
#7
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Tips to Loosen Electric Motor Bolts?
On 7/10/2014 1:23, KenO wrote:
Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding. Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. Thanks Ken What is the body of the motor made of? aluminium / aluminum can grow around the bolts. Colin --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
#8
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Tips to Loosen Electric Motor Bolts?
On 06/10/2014 15:23, KenO wrote:
Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding. Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. Thanks Ken You do not say size of bolts, but an old big? soldering iron laid against the bolt for whatever time ,may be more manageable source of heat to disrupt threadlock |
#9
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Tips to Loosen Electric Motor Bolts?
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#10
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Tips to Loosen Electric Motor Bolts?
In message , KenO
writes Recently was unable to loosen the bolts of an electric fan motor that needs rebuilding. Have never had this problem before so my first thought is the bolts have a high strength thread locker. Did a forum search to check if anyone else had mentioned this problem but found nothing. Am interested in all suggestions to loosen these bolts. Thanks Ken As well as the other suggestions, like all seized bolts that are not budging, initially try to TIGHTEN them a little. -- Ian |
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