Don't use WD40 as a penetrant, it is worthless for this purpose.
Get some Kroil, or make your own. 50/50 mix of Acetone and ATF or Marvel
Mystery Oil. Trust me on this one.
Beevo
---- Dan Heim <dan@xxxxxxxxxxxxx> wrote:
=============
Hey Albert,
I had a similar problem, not on my Takahashi but on my VW. Long story
short, what I did was use a Dremel to cut a groove in the top of the
broken screw, hit it with some WD40, and then backed it out with a small
screwdriver. Don't know how much of the screw you can reach, but it
worked for me.
Dan Heim
On 3/17/2016 5:57 PM, Albert Barr wrote:
I am having a problem with my Takahashi EM 400 Temma 2 mount. There is a
small screw that needs to be loosened near the polar scope so you can set the
offset based on your geographic location.
That screw broke a year ago. I got a replacement sent to me from Japan and
thought it would be an easy fix using a drill bit that can unscrew broken
screws and bolts.Well I tried that for quite some time and the bit eventually
broke inside the screw hole.
Even if I got a new part to replace all this I canât unscrew the ring
because the original broken screw keeps the ring from moving. I am wondering
if any of you know someone or perhaps a machine shop that might be familiar
with astronomy equipment who can fix this. I am, of course, willing to pay
for someoneâs time.
Iâve attached a DropBox link. The problem is the hole directly to the left
of the scale.
Many thanks
Albert
https://www.dropbox.com/sh/vzhnbdm2vs78nqk/AAB2WCdbbPlNbzAc0eV5SHiDa?dl=0 ;
<https://www.dropbox.com/sh/vzhnbdm2vs78nqk/AAB2WCdbbPlNbzAc0eV5SHiDa?dl=0>
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