Leveling Valve - With 2nd Ride Height - General
Setting 2nd ride height
The 2nd ride height can be set in accordance of the respective angle (Deflection) of each valve. The angle here refers to the deflection of the control lever from the horizontal, in degrees. The body height changes (mm) as a function of the lever length; see chart “2nd ride height”.

Chart for 2nd ride height
Linkage distance (mm) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Deflection | 60 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 220 | 240 | 260 | 280 | 300 | 320 | |
α = 10° | 10 | 14 | 17 | 21 | 24 | 28 | 31 | 35 | 38 | 42 | 45 | 49 | 52 | 56 | Height change (mm) |
α = 16° | 17 | 22 | 28 | 33 | 39 | 44 | 50 | 55 | 61 | 66 | 72 | 77 | 83 | 88 | Height change (mm) |
α = 20° | 21 | 27 | 34 | 41 | 48 | 55 | 62 | 68 | 75 | 82 | 89 | 96 | 103 | 109 | Height change (mm) |
α = 35° | 34 | 46 | 57 | 69 | 80 | 92 | 103 | 115 | 126 | 138 | 149 | 161 | 172 | 184 | Height change (mm) |
Inspection
- Test for operation and leaks.
- The pressure should neither rise nor fall at the delivery ports in the neutral position.
- Check the linkage moves freely and is in good condition, replace if bent or welded.
- Replace hardened or brittle rubber parts.
Maintenance
- If defects are noted during vehicle examinations or when driving, then the unit should be exchanged.
- When working with high pressure cleaners a distance of at least 50 cm should be observed.
- Missing exhaust caps are to be renewed.
Technical data
Medium | Air |
Operating pressure, dynamic | 13 bar |
Max. permissible bellow pressure | 20 bar |
Working range (charging / discharging) | 45° |
Thermal range of application | - 45° ... + 85°C |
Operating side | left and right |
Tightening torque ports (thread M12x1.5) | 12 - 15 Nm |
Tightening torque for fixing the body | 20 - 22 Nm |
Tightening torque for fixing the linkage (wrench size 10) |
8 Nm |
By rotating the linkage around 180° the same function will be achieved within a tolerance |
1st ride height 3.5° |
2nd ride height 4.5° | |
Dead angle at p1 = 8 bar, p2 = 7 bar | 1st ride height 2° |
2nd ride height 3.5° | |
Ports 1 |
Supply |
Ports 21, 22 |
Delivery |
Port 3 | Exhaust |
Port 4 | Control |
Sectional drawing 612 046 xxx

Ports: 1 - Reservoir / 21,22 - Suspension / 3 - Exhaust / 4 - Control
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