Remove/install air bellows

AR32.22-A-2003LA

Remove/install air bellows

15.1.10



Removing

 Danger!

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

Do not work between wheel and wheel well or in wheel box.

Only carry out check and adjustment operations from underneath the vehicle.

Secure areas with moving vehicle parts against unauthorized access.

AS32.22-Z-0001-01A

1

Secure vehicle against rolling

2.1

Switch on ignition and select normal level

With operative air spring bellows

2.2

Raise vehicle frame in area of defective air spring bellows

For defective and empty air spring bellows

3

Insert spacer plate (1) between limit stop (2) and axle

 Use steel washer as spacer plate.

Spacer plate height:

Front axle: approx. 50 mm

Rear axle: approx. 100 mm

4.1

Select lower level and switch off ignition

With operative air spring bellows

4.2

Lower vehicle frame

For defective and empty air spring bellows

5

Detach air line connection (3), deflate residual pressure from air spring bellows, and screw air line back on again

With operative air spring bellows

6

Pry air spring bellows off supporting plate (4) and detach from piston (5)

7

Clean supporting plate (4) and piston (5) and check for signs of corrosion

 If a lot of corrosion is found on the piston:



Replace piston



Install

8

Coat contact surfaces on air spring bellows with soapy water or spray with a suitable assembly spray

9

Position air spring bellows by turning to and fro onto piston (5) and supporting plate (4)

 Observe installation position: The manufacturer's marking must not be upside down.

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

10

Switch on ignition and if compressed air supply is insufficient, start the engine

11

During the filling operation check that the air spring bellows are correctly seated.

 The air spring bellows must not be twisted in themselves.

12

Select normal level and remove spacer plate (1) from axle

13

Check tire inflation pressure, correct if necessary



AP40.15-A-4060LA

14

Check vehicle level, adjust if necessary

AR32.22-A-7000LA