here are a few photos of the linkage on our ms80's pumps, We just picked up two more and they are different to the first two we have. The first two have that same style "box" on the side of the computer and i think that the part on the back of the nozzle holder just bolted right through the arm on the box, and then had a lever that went to the switch on the pump. I dont know if this makes sense. Also, the other two pumps were a different mechinasim alltogether, the one with the different linkage to yours has some of the same parts though, " the silver part on the right with the two red pipes coming from the bottom" any way have a look and if you need more pics let me know
jamie
jamie