Just looking at this and it is the ASCO/ASEA? if it is I am still using my WM & TD they will be 22years old in June.
WM has had 1 belt and door catch filed down, TD has had 2 jockey pulleys and a reset stat.
Now I know what to replace them with they cost WM £600 and TD £400
DW £600, I’ve had my monies worth.