Removal Procedure
- Drain all of the air from the air supply system.
- Mark both of the air lines to the leveling valve.
- Remove the valve locknut (2) that fastens the control valve link (5) to the control valve (1).
- Remove the following components:
| • | The leveling valve locknuts (1) |
- Remove the height leveling valve (2).
- Remove the brass air fittings from the height leveling valve.
Installation Procedure
- Install the brass air fitting on the leveling valve.
- Connect the leveling valve in position on the frame.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the following components:
| • | The leveling valve locknuts (1) |
Tighten
Tighten the leveling valve mounting locknuts to 95 N·m (70 lb ft) for models without RPO-GPG.
- Connect the leveling valve air lines to the correct ports on the leveling valve.
- Connect the control valve link (5) on the control valve (1).
- Install the locknut that connects the control valve link to the control valve.
Tighten
Tighten the locknut to 23 N·m (17 lb ft).
- Apply air pressure. Inspect the valve for leaks.
