Green wires are ground wires. They should connect to the grounding lug on the timer.
Im sure I have a manual for the unit somewhere. It will take some archive searching to find it.
For now see if there are two grounding lugs. at least one should connect to the timers body.
I will see if I can find the manual. let me know if there are not any lugs that attach to the body .
What you can do to see if any teeth are missing is rotate the control all the way around. If it clicks the same all the way around they are fine. If some are diffrent than the others then you may have a problem.
Actually there are no gears inside. The system works like the old style music boxes. It is a series of knotches and keys(contacts) that fall (are opened or closed) into them.
That is the beauty of the older machines. No digital workings they are all analog switches.
As for the manual I am sorry but I was wrong about having your model number. The best I can do is a model that is 7 years younger than yours.
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