I finally cleaned up my pair of S&G Environmental locks and here are some pictures of the insides.
The locks are very simple and stand up to the elements well. When I took these apart they had some type of goo in them that might have been grease 20 years ago. I’m pretty sure there was a dead spider in the bottom of one of them. To my knowledge the locks were left outside and never operated for at least 10 to 15 years. Except for a few rough spots on the shackles, the locks are in great shape.
There are only three different discs for these locks. You just flip the disk over depending on what angle of cut you want for the lock. So if you flip over a number 1 disc, it is now a number 4 disc. A number 2 disc flips to be a number 3 disc and the B disc flips to be a D disc. This lock used discs 2-D-3-1-4-3 from bow to tip. The discs are held apart by little plastic spacers.
Here is a close up of the key. There are 6 cuts on it. The second one in is a “D” cut (really no cut) as near as I can measure each difference of cut is about 17 degrees. There is about (.060) one sixteenth of an inch in and out movement of the key when the lock is opened.
To build up the lock, put the rubber O-ring into the groove inside the body of the lock. Drop the discs and spacers into the plug. Hold the sidebars in place and lower the lock down over the plug. There is a groove inside the plug hole that allows for the sidebar to slip in place.
Now drop the shackle in place and the locking balls, then the little locking cam. It’s not cut the same on each side and if you get it backwards, the lock won’t open. You can put the key in and try it to be sure it’s right. There is a little spring that goes in the hole in the center and then the cap screws on just with your fingers. The cap has two spots cut in it and one of them will line up with the small hole for the grub screw. Snug up the grub screw and spray a shot of LPS 1 in the keyhole and that’s it.
I have 15 meg or so of higher quality pictures if anyone wants them..
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