Lubrication of plastic gears
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Lubrication of plastic gears Steve 05-11-2008
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Posted by Steve on May 11, 2008, 5:31 pm
Hi

Unfortunateley I gave my wife some lithium-based grease to lubricate the
plastic gears on some old (60s/70s) sewing machines. (The grease was
Castrol LM - used for engines.)

We have just read that lithium based grease will damage plastic (possibly
the older plastics) and should not be used. Can anyone advise on this and
suggest the best way to clean the grease off?

Thanks

Steve



Posted by Kate XXXXXX on May 11, 2008, 6:02 pm
Steve wrote:
> Hi
>
> Unfortunateley I gave my wife some lithium-based grease to lubricate the
> plastic gears on some old (60s/70s) sewing machines. (The grease was
> Castrol LM - used for engines.)
>
> We have just read that lithium based grease will damage plastic (possibly
> the older plastics) and should not be used. Can anyone advise on this and
> suggest the best way to clean the grease off?
>
> Thanks
>
> Steve
>
>
Dismantle the machines. Take the gears out and wash with warm soapy
water. Dry carefully and reassemble... Give a light coating of
appropriate lubricant if the manual says this is necessary.

--
Kate XXXXXX R.C.T.Q Madame Chef des Trolls
Lady Catherine, Wardrobe Mistress of the Chocolate Buttons
http://www.katedicey.co.uk
Click on Kate's Pages and explore!

Posted by Steve on May 12, 2008, 2:37 pm
Thanks Kate. Dismantling the machine in order to remove the gears would be
a major task possibly beyond our capabilities. It's an option though - and
we'll keep in minds.

Steve

> Steve wrote:
>> Hi
>>
>> Unfortunateley I gave my wife some lithium-based grease to lubricate the
>> plastic gears on some old (60s/70s) sewing machines. (The grease was
>> Castrol LM - used for engines.)
>>
>> We have just read that lithium based grease will damage plastic (possibly
>> the older plastics) and should not be used. Can anyone advise on this
>> and suggest the best way to clean the grease off?
>>
>> Thanks
>>
>> Steve
> Dismantle the machines. Take the gears out and wash with warm soapy
> water. Dry carefully and reassemble... Give a light coating of
> appropriate lubricant if the manual says this is necessary.
>
> --
> Kate XXXXXX R.C.T.Q Madame Chef des Trolls
> Lady Catherine, Wardrobe Mistress of the Chocolate Buttons
> http://www.katedicey.co.uk
> Click on Kate's Pages and explore!



Posted by Ron Anderson on May 12, 2008, 9:12 am


> Hi
>
> Unfortunateley I gave my wife some lithium-based grease to lubricate the
> plastic gears on some old (60s/70s) sewing machines. (The grease was
> Castrol LM - used for engines.)
>
> We have just read that lithium based grease will damage plastic (possibly
> the older plastics) and should not be used. Can anyone advise on this and
> suggest the best way to clean the grease off?
>
> Thanks
>
> Steve
>
>
I have been using white lithium grease for years with no ill effects. Most
new machines with gears come with White lithium grease on them

--
Ron Anderson A1 Sewing Machine
18 Dingman Rd Sand Lake, NY 12153
http://www.a1sewingmachine.com




Posted by Steve on May 12, 2008, 2:44 pm
Thanks Ron.
>
>
>> Hi
>>
>> Unfortunateley I gave my wife some lithium-based grease to lubricate the
>> plastic gears on some old (60s/70s) sewing machines. (The grease was
>> Castrol LM - used for engines.)
>>
>> We have just read that lithium based grease will damage plastic (possibly
>> the older plastics) and should not be used. Can anyone advise on this
>> and
>> suggest the best way to clean the grease off?
>>
>> Thanks
>>
>> Steve
>>
>>
> I have been using white lithium grease for years with no ill effects. Most
> new machines with gears come with White lithium grease on them
>
> --
> Ron Anderson A1 Sewing Machine
> 18 Dingman Rd Sand Lake, NY 12153
> http://www.a1sewingmachine.com
>
>
>
From what I've read there are different sorts of lithium grease. Some are
synthetic and some are petroleum based, It's the petroleum based ones that
can cause problems with some plastics - and unfortunately that's the type we
used. I think the white lithium based grease you refer to is the synthetic
type.

Thanks

Steve



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