Removing and installing rear axle height control valve

AR32.22-B-2005A

Removing and installing rear axle height control valve

04.08.2020

Model

368, 382, 384.065, 634.001/011/061/071/081

Modification notes

26.10.2001

This document does not apply to the ENR system valves for vehicles with variable height controlled by the driver. The valves described herein are conventional level controllers.

Represented on vehicle 382.154

1

Level regulating valve

2

Top fastening support

3

Actuator rod

4

Adjusting nut

5

Lower bracket

6

Nut

7

Mounting screw and lock

8

Bolt

9

Nut

10

Pneumatic bracket of the bellows



Remove

 Danger

Risk of death from lowering vehicle when working between wheels and body. Risk of injury from pinching or crushing when working on the air suspension.

Testing and repair work between the wheel and wheel arch or in the wheel well should only be performed if the vehicle is secured using suitable support fixtures to prevent it from lowering.
Adjustment operations should only be performed from underneath the vehicle.
Use only suitable support fixtures to secure the vehicle frame or vehicle axles in order to prevent them from lowering.
If necessary, additionally use suitable support fixtures in order to prevent other moving vehicle parts that are in the working area from lowering, or use suitable retaining devices to prevent these parts from moving suddenly and without warning.
Secure areas with moving vehicle parts against unauthorized access.

AS32.22-Z-0001-01A

1

Place the vehicle on a ditch

 Chock the vehicle to prevent it from moving.

2

Turn-off the master switch

3

Completely depressurize the pneumatic system

4

Disconnect the pneumatic lines of the level control valve (1)

 Installation: Carefully move away the pneumatic lines and seal the ends to prevent dirt from entering.

 Installation: Note the number engraved in the valve and correctly install the connections:
1 - Inlet
2 - Outlets for the front bellows

5

Remove the nut (6) and release the drive shaft (3) of the bottom bracket (5)

Grease, DB supply specification 6804 - Class 267.0

*BR00.45-Z-1107-06A

 .Stem nuts of regulating valve - front and rear axle

*BA32.22-B-1008-03B

 .Level regulating valve rod articulation fastening to the support

*BA32.22-B-1008-03C

6

Loosen the screws and nuts (7) and remove the level control valve (1) from the top bracket (2)

 Install the top bracket (2) only if it has been removed

 .Nuts of level regulating valve - front and rear axle

*BA32.22-B-1007-03B

 .Level regulating valve (bracket and valve fixation)

*BA32.22-B-1009-03C



Clean

7

Clean the mechanical components, lines and pneumatic connections

 Handle flexible pipes carefully.

 Dry-clean the joints of the drive shafts.



Check

8

Check the condition of the top bracket (2), bottom bracket (5), drive shaft (3) and the upper and lower joints

 Replace damaged or worn parts.
Check the exhaust dampers or filters on the engraving connection #3



Install

9

Install in reverse order

10

Start the engine

 Run the engine until it reaches the normal working pressure, and pressurize the pneumatic bellows.

11

Check the tightness of the pneumatic suspension

.

AR32.22-B-8000A

12

Check and, if necessary, adjust the vehicle height

Vehicle 382.15

AR32.22-B-7000A

Vehicle 368.1

AR32.22-B-7000XA

Vehicle 382.18

AR32.22-B-7000XB

 Air suspension

Number

Designation

Vehicle 382.05/069/07/08

Vehicle 368.0/1

BA32.22-B-1007-03B

Nuts of level regulating valve - front and rear axle

M8

Nm

-

21...23

 Air suspension

Number

Designation

Vehicle 384.065/3

BA32.22-B-1007-03B

Nuts of level regulating valve - front and rear axle

M8

Nm

21...23

 Air suspension

Number

Designation

Vehicle 382.05/069/07/08

Vehicle 368.0/1

BA32.22-B-1008-03B

Stem nuts of regulating valve - front and rear axle

M8

Nm

-

21...23

 Air suspension

Number

Designation

Vehicle 384.065/3

BA32.22-B-1008-03B

Stem nuts of regulating valve - front and rear axle

M8

Nm

21...23

 Air suspension

Number

Designation

Model 382.154/188

Model 382.155/189

BA32.22-B-1008-03C

Level regulating valve rod articulation fastening to the support

M8

Nm

20

20

M10

Nm

60

60

 Air suspension

Number

Designation

Model 382.17/180/181/182/184/185/186/187, 634.001/011/012/014

Model 634.061/071/081

BA32.22-B-1008-03C

Level regulating valve rod articulation fastening to the support

M8

Nm

20

20

M10

Nm

60

60

 Air suspension

Number

Designation

Model 382.154/188

Model 382.155/189

BA32.22-B-1009-03C

Level regulating valve (bracket and valve fixation)

M8

Nm

21...23

21...23

 Air suspension

Number

Designation

Model 382.17/180/181/182/184/185/186/187, 634.001/011/012/014

Model 634.061/071/081

BA32.22-B-1009-03C

Level regulating valve (bracket and valve fixation)

M8

Nm

21...23

21...23

Repair materials

Number

Designation

Order number

BR00.45-Z-1107-06A

Grease, DB supply specification 6804 - Class 267.0

Use corresponding commercially available repair materials.