Sargent and Greenleaf Combination

[frollard]

I just bought a lot of locks, and in it, was this sargent and greenleaf inc. Stamped with "B L 1" on the hinge side of the lock (as opposed to the 'opening' side of the hasp).

on the back is a small slider next to a somewhat key-shaped hole.
the slider -- when 'slid', within the lock removes a plate over the inside of that keyhole.

I want to know, can I take this lock apart? (desperately needs a clean/lube) - and if I do, what shape key would I need?

I might be able to get a picture of it, but not for quite a while.

extra info:

it looks like an old fashioned 'warded/handcuff' key hole - with a square top (where the axle of the key would normally be round) - and then a slot extending below one of the points of the square.

the lock is housed within a cup-shaped front peice, with a 'lid' that fits on the back, within the 'cup',. the 'lid' appears to be held in place by 4 pins, drilled through the sides of the cup, into the lid. (cant see any other reason to have those pins there)

I have the combination.

[Chucklz]

Sounds like you got an 8088 padlock, There is no non destructive way to dissassemble them (that I know of) and no replacement parts will be available from S&G.

[frollard]

any thoughts as to what the hole on the back is for?

I figure its for lube...

[zeke79]

if its the 8088 the hole in the back is for a combination change key or a combination reset key.

[hzatorsk]

FTIW: The S&G 8088 was replaced by the 8077A on the list of approved locks for classified or security related uses as the 8088 had what the government calls a 'comprimise'. I don't recall this particular lock or what the exact comprimise was... But... I seem to recall it was rather obscure.

Harold