Emergency Leveling Valve Override Procedure
In an emergency, it may be necessary to follow these steps below to get a coach back to ride height position.
HWH 2000 series leveling system
- Manually raise low corner of coach (attempting to locate center of air bag travel)
- Locate HWH control boxes in storage bays (fit & rear air boards).
- Once boards have been located we will need to identify the brown 12 pin plug on front air board (if control valve is bad on the front).
- If coach is leaning to the left or right on the rear locate rear control board identify the 12 pin brown (in some cases may be black).
- Disconnect plug for the corresponding control box to valve that is failing.
HWH 680 series leveling system
- Manually raise low side of coach if rear control valve is bad or front of coach if front valve is bad.
- Locate HWH control box remove cover.
- There is a series of circuit boards located inside of box (top and bottom boards) you will need to locate the 7.5 amp travel fuse and remove, (lower board)
- The coach will now hold to the level position you manually set
HWH 600 series leveling system
- Follow same procedures as on 680 series above.
- The only difference is the control box layout, there is only a single row of fuses locate the 7.5 amp travel fuse and remove.
Active Air Leveling System
- Manually raise low side of coach if rear control valve is bad or front of coach if front valve is bad.
- Once coach has been raised to travel height locate Active Air panel on dash.
- Press Stop button on Active Air panel and Coach is ready for travel.
- If all electronics have shut down then you can inflate air bags with Schrader valves located in storage bay to the travel position. Once ride height is achieved then you are set for travel.
These are only emergency recommendations and not meant for normal travel. Travel speeds should be greatly reduced and checked periodically during emergency operation.
Excerpt from Fall 2015 Motorcader