These locks work where you start at zero. turn left (counter-clockwise) until you hit your first number the 4th time. than go right (CW) until you hit your second number the 3rd time, than left again until you hit the 3rd number the 2nd time. than turn right until it stops. Or sometimes you go to zero instead of turning until it stops, you will have to try both ways. Go to the web site and look at the various directions:
http://www.sargentandgreenleaf.com/OPinstr.php
Now to decrypt the letters to numbers: Notice how the left side shows DT,LT,OT,GT to stop HT? T stands for turns. This corresponds to the 4 turns, 3 turns, 2 turns, 1 turn requirement. So DT=4 turns, LT=3, OT=2 GT=1 and HT=0 . Now to the combo: Since H=0 and G=1 and D=4, there is a pattern of numbers increasing in value as the letters descend, so abcdefgh = 7,6,5,4,3,2,1,0. So looking at the letters(numbers) on the right you have LC which translates to 35, GO = 12, AE = 73
So try:35-12-73. Or try
24-01-62 (alternate in case he was off on the turns by 1 IE 3-2-1-0 turns)
If I am correct, everyone on this thread should give me a +rep because damn, that was good !! If I'm wrong....give it to me anyways cuz I'm a rep whore.