Sargent & Greenleaf 6730

Published February 3, 2012 | By admin

At a tire and auto center on Westfield Avenue in Roselle Park NJ 07204, Bill’s Lock, Safe & Security was called upon to repair an old Mosler safe.

The safe had a long discontinued Mosler B-6 lock which, as you can see from the wheel post , was seriously worn. The wheel post shown in the photo should be smooth and of a single diameter. You can plainly see the wear from the three wheels that revolve around that post. Since there is so much wear, the wheels do not stay on the numbers to which they were set.

The problem now is the “footprint” of the lock. You can see the difference in the size of the locks and where the bolts are located.

Since the Mosler mounting plate is very thin and welded to a hardened, drill resistant plate, we were forced to make our own mounting plate and weld it to the Mosler plate.

This covered the old spindle hole on the inside and we then used carbide drill bits to make a spindle hole for the new lock. We used an epoxy liner to prevent the fireproof material from the hole from leaking into the lock case.

The new Sargent & Greenleaf 6730 Group 2 combination lock is now in place on the new mount. A custom fabricated relock hold back or strap was made from stainless steel. The original holdback was part of the lock mount.

Originally, the back of the Mosler wheel pack stuck through the back cover. The back cover of the safe door was cut to accept the new S&G 6730 combination lock with stainless steel relock strap.

The Mosler safe now has a new Sargent & Greenleaf combination lock with black spyproof dial and ring.

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