Adjustable Ride Height

[dentmac]

FYI .... The 450 has a Hadley system.
Ride height is not adjustable, but the back of the coach can be raised with a button under 20 ? mph (for a dip or railway tracks etc.) Pressing and holding the same "Raise " button raises the entire coach to maximum (under 10? mph). Lowering for clearance is also available at low speed. The system returns to Drive height automatically. Same when one depressurizes the tag. (doesn't lift).
For levelling: At low speed the system will sense if the coach can achieve level . Then the air system will level the coach. (quite accurately ) There is a "Big Foot" auto or manual hydraulic system also. Referred to as a "Stabilizer" not a jack.

In all coaches, the 4 point "Active air" system was removed.