Dialling instructions for a three wheel combination lock.

Doesn’t matter where you start. Given an example combination set to 20, 40, 60.
(Stop EXACTLY as soon as it lines up the last time with each number. If you go more than half an increment past with any of the numbers then you have to start again dialling four times ACW to 20.)
Turn anticlockwise, count one as soon as 20 lines up with the 12 o’clock mark. Keep on turning anticlockwise until 20 lines up exactly for the fourth time, then stop and reverse dialling direction so Turn clockwise until 40 lines up – count one – keep turning clockwise until 40 lines up the third time. Then reverse dialling direction so Turn anticlockwise until 60 lines up with the mark at 12 o’clock and count one, keep turning anticlockwise until 60 lines up the second time then reverse dialling direction so Rotate slowly clockwise and the dial should come to a dead stop after 0 and before 90 provided everything above was done correctly. That is now open.

 

 

Suitable for Sargent and Greenleaf S&G 6730, 6630, 6642 combination locks or La Gard 3330 & 1985 locks or Ilco P67 or JIS or Chubb safe locks 7L08

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