Originally Posted by christian.hess
hmmm nobody? really, all new stuff on here?
The company seems to be around link: Benmar Marine
Would try to contact the for more information & documentation.
Looking at this picture...
I think I would have looked at the drive unit first.
Lube all the movable parts and get it moving.
Without knowing the system I would think that the drive unit has two power cables (+/-) and that the control box will reverse polarity to change direction.
So to verify that the drive unit is working you can connect it temporarily to a power source (use a switch in the circuit so you can stop it quickly)
If the drive unit is OK but other parts are missing or defect you should be able to use this dive unit with a new / different AP system.