PST Mod Question

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marktownley
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PST Mod Question

Post by marktownley » Sun Feb 26, 2012 7:51 pm

I know this may seem a daft one but will ask anyway... If I was doing a PST mod and unscrewed the gold objective tube from the black box, I could screw it back on again if I wanted?
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Roel
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Re: PST Mod Question

Post by Roel » Sun Feb 26, 2012 8:01 pm

Yes, no problem!

(But remove the sticky Loctite if present, it might glue back on almost as tight as before! The newer PST's have lots of this nasty stuff on all threads))
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swisswalter
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Re: PST Mod Question

Post by swisswalter » Sun Feb 26, 2012 8:59 pm

Hi Roel

Yes you are right. I did it my self. I felt, if you put it together again it sticks much better together, I was almost not able to deassemble them again
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Re: PST Mod Question

Post by DSobserver » Mon Feb 27, 2012 8:01 am

in order not to damage the gold tube, I recommend to use this special key : http://www.waterconcept.fr/cle-boa-smal ... p-709.html

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Re: PST Mod Question

Post by occamfan » Fri Mar 02, 2012 9:14 am

I found that these tools did the trick;first putting the black box in a vise(cushioned with wood and leather) and using an oil filter removal tool around the gold tube,this time cushioned with thick rubber(an old engine a/c belt)

I found that the tube and etalon came free from the black box together, so I mode shaped wooden grips to hold the etalon in a vise then used the same technique to separate the tube from etalon - heres a pic. of the whole tool kit
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Re: PST Mod Question

Post by Merlin66 » Fri Mar 02, 2012 10:55 am

So far so good....
Just double check the etalon...make sure the front and rear lenses are still tight in place (I had a couple of examples where they had loosened during removal)
Looks like you're heading for a Stage 2 mod....
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Re: PST Mod Question

Post by poita » Wed May 30, 2012 10:16 am

I snapped two heavy duty boa's, I never managed to get the gold tube off my second PST.

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