zf 2 speed

hello everyone ive just bought a 440 yanmar diesel and zf 2 speed box but how does it change gear there is only 2 wires going to the box that i see and they are for an oil light maby its automatic any help would be good
cheers gerry

 

Cant help with the wiring ,

but the ZF90 is my first choice at creating a 5 nmpg at 18K boat. What are you going to stick it in?

FF

 

sorry fred i dont understand what yous sayin maby its just me the box is a 110ts

 

What style boat will you be using the package in?

FF

 

its a 27ft fletcher zingaro all in weight is only 2 ton currently doing 54mph with a 300 mercruiser diesel so the 440 yanmar should make a good difference what you think

 

http://zf-marine.com/ZFR/Support/Index.cfm?PID=3&ProductID=1548

must be what the drawings refere to as mecanical selector

 

i think the mechanical selector is the forward and reverse cable is mechanical electric is usin a button for forward and reverse but dont see anything on drawing about two speed shift