rc safe protector 1/8 nitro gas rc car truck buggy receiver servo parts micro fail-safe for rc car model

put the servo you wish to connect (throttle servo) connection into the the fail safe (opposite wire connection) put the fail safe connection lead into the servo port of the receiver (where the throttle servo lead usually goes) turn everything on and move the throttle servo to the spot where you want it go when it runs out of power/lose signal (using the remote)
push the little button to save please ensure you test it by switching of the remote before you begin use, it will return the throttle servo to the preset position.syi