Here are the instructions from the 1957 National Service Data book.Also check the TSB (product service letters) book on page 140.It pretty much spells out the same information.
The specific PSL is P 348.
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I had to delete a picture from an earlier post to get this onboard.
Is there some way to not have pictures that I post deducted from my account?
Its like I have a finite amount of points that I can use and thats all.
If thats the way it is - so be it but I would hate to see information (in pictures) lost from this great site.
Oldmics