[DuoList] Clicky left hinge on my 2400c....

[Ralph Mawyer]

http://webobjects.uwaterloo.ca/mac2400/	Hardware:repair:hinges

> Hinges
> Apparently Ash is the first user to report a complete  failure of his 
> stainless steel screen hinges. After his hinge  failure, and 
> subsequent frustration in finding a set of new hinges  at a reasonable 
> (or unreasonable for that matter) price, he was  able to have them 
> welding back together by a local machine shop.  That's when we started 
> thinking about lubrication.
>
>  If you think your hinges might need lubrication we strongly  suggest 
> you stay away from anything that leaves a residue and keep  in mind 
> that in general electronics components and oil don't go  together very 
> well. Lubricants like Dri-Slide or TriFlow are  preferred over WD-40 
> and the like, BUT any type of lubricant puts  your electronics at 
> risk. First, be sure your hinge isn't just  loose or binding from 
> being out of alignment. We're open to  suggestions...
>
> Here's what Ash did to remove the hinges:
> For disassembly, it's actually quite easy. There are 4  screws total 
> that hold the display together. Two are underneath  the "Macintosh" 
> and "Powerbook 2400c/180" labels, and the other  two are under the 
> rubber dots at the top of the display.
>
>  Once you have the screws out, just pry open the display cover with a 
> flathead screwdriver, (but do it gently). I've taken it apart a few 
> times now without any problems
>
> Prolific Sydney explains it this way:
> There is an easy DIY fix for this. I just did mine  yesterday after 
> some procrastination (actually when I  reexamined the "clicker  fix"). 
> Exactly the same problem on one hinge. If there is  growing or 
> excessive free play in the screen swiveling, you  should pop off the 
> 1/2" strip above the keyboard (by loosening  the two screws hidden 
> under the plastic caps) and tighten the  hinge screw(s) (facing same 
> side as screen) as well as the two  screws on the back of the computer 
> (visible from outside). I  strongly recommend anyone with excessive 
> free play do this ASAP  as the loosened hinge is much more highly 
> stressed at the screw fixing point. The free play actually comes from 
> the additional  pivoting of the screen tab on the tiny screw which 
> attaches the  hinge in the lower case. Ironically, the very firmness 
> of the  pivoting action further increases the stress on the hinge when 
>  it gets loose. This could lead to the 2400 "broken hinge"  syndrome. 
> (Sidney Ho/21 May 99/DuoL

Quite a bit in the archives on this also.
http://www.mail-archive.com/duolist%40lists.themacintoshguy.com/

Cheers...

On Aug 6, 2005, at 8:02 PM, Scott Strungis wrote:

> Hi listers,
>
> My 2400c has developed an annoying click when I open the lid.  It
> seems to be coming from the left hinge area. I think that the seam for
> the plastics on the lid is catching slightly on the back of the laptop
> as it opens.  I also notice that the left hinge cover has some slight
> give to it between its twio halves.
>
> Does anyone else have this trouble?  Do I have to worry about my 
> display cable?
>
> Thanks,
> Scott
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>
Ralph Mawyer, Jr.
San Antonio, Texas

PB2400c/G3-320/112MB/80MB HD/Yu-Plan Keyboard
mac2400 http://www.sineware.com/mac2400
Your PowerBook 2400 Reference Site

"They that can give up essential liberty to obtain a little temporary 
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