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 Post subject: Wrong longer screw in keyboard & lubricant
 Post Posted: Sat Jun 25, 2011 11:40 pm 
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Joined: Thu Jun 07, 2007 10:54 am
Posts: 196
Location: Minneapolis, MN
I accidentally used a screw that was a few centimeters than the others while replacing a T61 keyboard, on the middle screw point. Oddly, when I removed the errant screw, the tip had a daub of what looked like clear lubricant on it. Any ideas on what this was, and why it would have been at the end of a screw post? I'm pretty sure it didn't puncture anything.


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 Post subject: Re: Wrong longer screw in keyboard & lubricant
 Post Posted: Sun Jun 26, 2011 6:30 am 
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Joined: Sun Feb 04, 2007 11:44 am
Posts: 5751
Lenovo pre-coats many of the screws for its laptops with a thread locking agent. Blue Loctite is the most commonly used material. The clear material you saw may have been some of the insulator coating applied to the base of the keyboard that could have been scraped off by the errant screw, Scott.


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 Post subject: Re: Wrong longer screw in keyboard & lubricant
 Post Posted: Sun Jun 26, 2011 10:40 am 
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Joined: Thu Jun 07, 2007 10:54 am
Posts: 196
Location: Minneapolis, MN
Why does the keyboard need to be insulated? Thanks.


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 Post subject: Re: Wrong longer screw in keyboard & lubricant
 Post Posted: Sun Jun 26, 2011 4:17 pm 
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They have what seems to be tape or an insulating coating on the base metal in some cases. It is either to prevent corrosion or to prevent inadvertant contact when somebody presses down too hard and over-flexes the board. Scott.


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