Store frame height, function

W32.33-0087-09

1 Indicator lamp for raise/lower at front

2 Indicator lamp for raise/lower at rear

3 Button for raise/lower at front On/Off

4 Button for raise/lower at rear ON/Off

5 Frame height button M1

6 Frame height button M2

B51 Front axle position sensor

B52 Left driven axle position sensor

B53 Right driven axle position sensor

S50 Operating unit no.

Y26 MV no. front axle

Y27 Valve block no.

7 Driving position button

8 Raise button

9 Lower button

10 Stop button

11 Indicator lamp no. (ENR)

A14 Control unit no.

Function sequence

Store frame height

1 Basis condition:

 Vehicle STATIONARY

 Operating unit no. (S50) activated.

 The raise/lower indicator lamp at the rear lights up and with air suspension on all axles also lights up at the front (2 and 1).

2 The vehicle frame is raised or lowered after operating the raise or lower button (8 or 9).

3 The no. (ENR) indicator lamp (11) lights up.

4 The NR control unit (A14) actuates the NR. valve block (Y27/Y28) on the drive axle and, in the case of air suspension, on all axles the NR solenoid valve (Y26) on the front axle, this adds air to or removes air from the air spring bellows.

5 The vehicle frame and thus the cargo area has reached the desired level, e.g. the height of a loading ramp which is to be driven up to it relatively frequently in the near future.

6 The frame height is stored by simultaneously pressing the stop button (10) frame height button M1 or M2 (5 or 6) .

 Storage can only be carried out when the vehicle is stationary. Always press the stop button, hold the button down and in addition press the frame height button M1 or M2 The stored frame height can only be called up at a speed of < 30 km/h