Removing 3 screws to replace SW ED80 focuser

[ab1963 (Andrew)]

Hopefully someone can help me with this the 3 screws attaching the focuser on are so tight I can’t get them undone and don’t want to strip them just wanted to know any tips to help me with this problem please

[Merlin66 (Ken)]

Andrew,
Having removed many SW focusers I would recommend a good Philips screwdriver and good location and pressure. The scores should come out....
I normally replace them with hex dome head M4 screws.

[brisen (Brian)]

Originally Posted by ab1963

Hopefully someone can help me with this the 3 screws attaching the focuser on are so tight I can’t get them undone and don’t want to strip them just wanted to know any tips to help me with this problem please

If they are hex head screws I have found the t handled Allan keys are really good as they let you get a bit more purchase that you cant get with a normal Allen key. I picked them up from Bunnings for about $25.

Brian

[ab1963 (Andrew)]

Originally Posted by Merlin66

Andrew,
Having removed many SW focusers I would recommend a good Philips screwdriver and good location and pressure. The scores should come out....
I normally replace them with hex dome head M4 screws.

I have Stanley philips head screwdrivers Ken and have Removed a few myself but this one feels different and it’s brand new so I’m a little worried about damaging it they just feel like they are welded in

[Merlin66 (Ken)]

Go for It!
Get a good fit and give it some force....
The original Philips screws should be able to be removed....
Some WD40 might help.

[ab1963 (Andrew)]

ok i will have a go again tomorrow and thanks to both of you

[Merlin66 (Ken)]

Andrew,
If needed I can send you a set of stainless steel M4 x 8 Allen socket, domed head screws.
(I use 24 of these on each Spectra-L200 spectrograph!)

[ab1963 (Andrew)]

Thanks Ken that would be great I will pm you about that,Took your advice and went to Bunnings and got a Stanley screwdriver with the interchangeable heads with adjustable shaft length got the bit that fitted and they came out no problem so thanks

[Merlin66 (Ken)]

If others have the same issue/problem I have a good stock of replacement S/S screws.
Drop me a PM.

[axle01 (Alan)]

Tap the handle end of the screw driver with a small hammer while inserted into the screw, I don’t mean bash it just light tapping.

Al