SMT: Irgendwelche Vorschläge, warum sich der RPM-Sound nicht ändert, wenn ich mich mit S20 vorwärts / rückwärts bewege?

  • When I accelerate to move forward, the RPM sound does not change. It stays idle.
    However, when I move one of the hydraulic functions, the engine noise changes slightly relative to the idle speed, which is perfectly normal to simulate the engine load.
    Any suggestions why the RPM sound does not change when I move forward / backward?