I don't know why, but it's too far around the HI side than HI.
I checked the operation with MC28.
It will turn too far to the HI side than the HI position.
In the case of the MC28, I removed the Axel opening SensorCoupler and inserted the Card, which moves it to the HI side, so that's how I adjusted it.
If you see Manufacturer, please give us a possible reason.

