Thread: Combination Lock Needs Servicing?

My amateur understanding is that 1 number either side is acceptable, depending on the rating of the combination lock. The "fudge-factor" is due to the size of the gate opening in each of the wheels, and the size of the 'fence' on the lever arm.

Not necessarily your brand of lock, but http://www.sargentandgreenleaf.com/p...mech_locks.pdf provides a some good info.

Also an explanation of lock ratings (group 1, group 2, etc) here: http://www.lockwiki.com/index.php/UL...sistance_Tests

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