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Archives of an email list on the history of binoculars. - page 148 / 150

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usually be found at WalMart or Pep Boys.  Castrol Super Clean should be used with utmost care, as it is a highly alkaline detergent that is solvent based.  The product is not friendly toward old paint or skin.  Rubber gloves are mandatory.  It also would be smart to cover any of the optics or painted areas with suran wrap while using this stuff.   Put some Super Clean on a rag and go after that messy green rubber.  Once this product hits the rubber, the imbedded grime and dirt slides off like butter, and the original underlying factory rubber surface comes gleaning through.  After wiping down the outside of the M-22's rubber, make sure and give it a second wipe down with a mixture of mild dishwashing detergent and a damp rag to get rid of any alkaline detergent residue.  The green rubber will be factory clean after this, but a little bit on the "dried out" side of things.

After cleaning, it is probably best to replace the natural underlying plasticizers and lay down some oxidation and sun protection, or your rubber will be back in dull shape after several months.  The only product that I would consider for rubber care is Lexol's Vinylex (http://www.lexol.com/vinmore.html).  Vinylex has the "industry reference" DH-60 UV/oxidation inhibitor and enough organo-functional silicone to bring things back to life, without all that greasy, artificial shine that you get from Armor All.  While Vinylex may seem to be just another Armor All clone or substitute, it is a vastly superior product and chemically engineered with restoration and preservation in mind, rather than a gooey gloss.  Vinylex is not always easy to find..........a list of dealers can be found here (http://www.lexol.com/dealers.html).

There you have it.  A few suggestions for parts/external care and a lead for internal repair.  And just remember, if all else fails, you can always toss it in your recycle-able plastics trash bin!

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From: "deutscheoptik.com   To: sapharris@___ink.net    Subject: RE: M22 Serviceability

Those things are indeed ugly to work on .. and believe our success stemmed only from a special version of the M-22 made for the IDF that had somewhat more accessibility than their usual unibody.  Even those were troublesome, and we certainly couldn't fix 'em all.

s/ Mike

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From: Steve Harris <sapharris@___ink.net>

Note the preceding e-mail string from Mike.  I do remember seeing many of the DO IDF bino's after the rubber had come off and noticed that the body was not the traditional M-22 unibody.  The IDF bodies would separate into many parts, all held together by copious amounts of white silicon glue.  Could the special IDF "easy access" model, possibly designed for some level of serviceability, actually have been a variant of the Military / Marine model sold around the world on a commercial basis?

The M-22's I had were were all one piece, unibody, except for a bottom access plate next to the objective that could be removed (sometimes!).  This plate was held on as well by copious amounts of white silicon glue and it was my access point to clean the prisms using a long swab and other custom-rigged wipes.   It certainly was the most time consuming and intricate exercise in binocular cleaning that I have ever undertaken.  I would hate to think of the amount of energy, effort. and cost that would have been required to replace a broken prism!

As a final thought on this topic, I remember seeing many boxes of Steiner's marked "factory refurbished" at SWFA's warehouse years ago. I wonder if these binoculars were "refurbished" by just replacing a defective side or did Steiner actually have a repair person/group dedicated to the disassembly, repair, and re-gluing of these binoculars?  

The mysteries of the "Makrolon Menace" remain with us still.

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