When actuated, via vehicle control unit (FR), the engine brake magnetic valve opens, and controls the intake of compressed air to the engine brake operating cylinder.
Engine brake magnetic valve actuation occurs when the engine brake actuator lever is depressed in the first position and the engine speed is above 900/min.
Engine without CODE (MZ4) Turbobrake:
When actuated, via vehicle control unit (FR), the engine brake magnetic valve opens, and controls the intake of compressed air to the Top Brake valves on cylinder heads.
Engine brake magnetic valve actuation occurs when the engine brake actuator lever is depressed in the first position and the engine speed is above 900/min.