by Sinifar » 31 Mar 2013 10:20
As a Primus dealer, let me state for the record, that there are indeed, 3 angles, and 2 different heights, and there are 5 "finger pins" in every cylinder which react with that side milling and in the end the side bar.
For ours there is 2 - 4 - 6, and this comes in left right and center. The "commercial" - read that distributor and end users have 1 - 3 - 5. Same skews. Yours as a dealer is random and if Primus 1+ you share it geographically with other smiths outside of your area.
In working with this lock, you need the special holding fixture which has a side bar slot milled on the side so you can both work the plug before you assembly it into the shell, and rework the finger pins.
The side bar milling is "fussy" is if not exact will not work as most who buy the Jet blanks can tell you - it doesn't always work unless you are very exact in transferring the pattern from an original Schlage blank to the Jet blank. There is no "middle ground" or slop in this deal. It is either exact, or it won't work.
Screwing around with this lock you will find more parts than a Swiss Watch. Not only to you have the six bottom pins, six top pins, and cylinder springs, and perhaps master pins, but also five finger pins, and the springs which power those, the side bar, and two itty bitty springs which drive that back out. There are drill guards on both the main pin set and the sided bar has it's own hunk of carbide to keep from drilling that off. Add to that top pins and bottom pins with a carbide "core" and you have a real nightmare without solid carbide bits, you won't cut thru the parts. The basis of UL 437.
As far as servicing this thing, if you do not have the correct sidebar milling blanks, then you can slide the plug out after shimming the thing with another / any / Primus blank. A Classic Schlage will not enter this lock. Once the plug is free, be sure to contain the finger pins and the side bar for the small parts will go everywhere. AND if you are not a dealer, you will not have a supply of those handy or available.
This is not again something with should be played with or taken apart except by those who have the training, the parts, and know how it works. IF you take it apart without the "right stuff" to get it back together, you just got yourself an expensive box of parts to play with.
Sinifar
The early bird may get the worm, but it is the second mouse which gets the cheese!
The only easy day was yesterday.
Celebrating my 50th year in the trade!