ar3222d2010a

Testing rear axle height control valve

Type ar · topic 32.22 · version 0100 · 1996-09-24

Applies to: MODEL 668, 670 with CODE (CE2) rear air suspension

Where it sits

Function group 2 Chassis › 32 Suspension › 32.22 Air suspension — Series 668 · Series 670

EinPAS 20 Chassis › 20.16 Suspension › 20.16.13 Line/hose/valve — Series 668 · Series 670

AR32.22-D-2010A

Testing rear axle height control valve

25.6.96

MODEL 668, 670 with CODE (CE2) rear air suspension

Testing rear axle height control valve

D32.22-0009-06

Shown: left-hand side of vehicle, right-hand side is the same

4 Height control valve

7 Height control valve actuating rod

8 Actuating lever

Testing

1

Unscrew actuating rod (7) on top of actuating lever (8).

2

Check increase pressure function

Turn actuating lever (8) on valve upwards (arrow) out of the zero position until the valve starts to regulate.
The pressure in the air suspension bellows increases, allow air suspension bellows to extend to the maximum height.

3

Check reduce pressure function

Turn actuating lever (8) on valve downwards (arrow) out of the zero position until the valve blows off.
Empty the air suspension bellows.

4

Unscrew actuating rod on top of actuating lever (8)

5

Check vehicle level and adjust, if necessary.

AR32.22-D-7000A

Referenced documents