The teac CMK-4 mechanism is used in :-
WADIA 850 (Version a mech)
Assembly and Part identification drawings are attached for replacement nylon gears.
My Copland CDP
My Copland 288 started to shred teeth on gear B. I needed these assembly drawings to work out that is was called gear B and what to order from CHS. Emailing absolute sounds proved to be useless as I expected from past experience regarding their support. Anyhow, not too difficult to replace both gear A and B once you know how to. The original gear had turned very yellow and soft. A common fault with some Teac mechanisms.
It is possible to replace gear A and B (krell call them gear 1 and 2 BTW) without taking the mechanism out in some players.
The laser needs to be partially removed and unmeshed to fit the new gears.