This chapter is about the wiring of an AUTO TRIM pump with a BTS by Norbert Brüggen. This
wiring is different from the wiring of an AUTO TRIM pump with an Engel BTS!
Using the Brüggen BTS it is useful to wire the AUTO TRIM pump as if it is an AUTO END pump first. For that simply ignore the
AUTO TRIM SWITCH.
Having wired the tappet switch and the piston switch go on with the AUTO TRIM SWITCH. It is simply there to close two contacts of the
Brüggen BTS when being pressed. For that you only need two wires from two switch contacts to the BTS contacts.