How to connect the manual throttle of Tengyu truck crane

1. Use two wires first, one is the throttle control signal wire and the other is the ground wire.

2. Then connect the signal line to the manual throttle control of the truck crane Tengyu and fix it with the terminal of the throttle control relay.

3. Finally, connect another cable as a ground wire directly to the negative battery of the truck crane or the ground wire on the frame.