ar3222b2003e

Remove/install air bellows

Type ar · topic 32.22 · version 0400 · 2016-02-12

Applies to: Vehicle 382.15

Where it sits

Function group 2 Chassis › 32 Suspension › 32.22 Air suspension — Series 382 (models 15*)

EinPAS 20 Chassis › 20.16 Suspension › 20.16.30 Spring/air suspension bellows/shock absorber/suspension strut — Series 382 (models 15*)

AR32.22-B-2003E

Remove/install air bellows

12.02.16

Vehicle 382.15

Remove/install air bellows

B32.22-0058-09

1 Bellows of rear pneumatic suspension

2 Vehicle structure

3 Support of rear axle pneumatic suspension

4 Bottom supporting plate integrated in the suspension support

5 Bottom sealing edge of bellows

6 Top sealing edge of bellows

7 Bellows supporting and sealing edge

8 Sealing edge on the supporting plate

9 Sealing edge on the support top ring

10 Threaded neck of the pneumatic suspension

11 Upper support

12 Rear shock absorber

13 Pressed stop on the supporting plate

Remove

Danger!

Life at risk by vehicle lowering in jobs between the wheels and the structure. Risk of injuries by crushing or pinching, in pneumatic suspension jobs

Do not work between the wheels and the rolling space or wheel wells. Carry out testing and adjustment work exclusively from the bottom of the vehicle with the assistance of a pit. Fence with safety the access to moving parts area.

AS32.22-B-0001-01A

1

Lift the vehicle at the rear and support it on safety stands

Do not lift the vehicle by the center of the rear axle. Chock the vehicle to avid its rolling

2

Remove the wheels.

AR40.10-B-1100E

3

Fully relieve the pneumatic bellows pressure

4

Detach the compressed air line at the threaded neck (10)

5

Remove the bellows (1) and the supporting plate (7)

Manually remove the bellows (1) from the sealing edge of the upper ring on the support (9) carefully and pull it out together with the supporting plate (7) in the lower part.

Do not use levers or metal made tools. As a last resource, utilize a wooden lever with rounded ends.

6

Separate the bellows (1) from the supporting plate (7)

7

Disassemble the stop (13) from the supporting plate (7)

Secure the assembly by the supporting plate (7) in a vise (with protection on the jaws) and utilize an appropriate lever without damaging the sealing edges.

If the stop is damaged it may be cut off with a chisel.

Cleaning

8

Clean all mechanical components, the supporting surfaces and the bellows

The bellows is to be dry cleaned without utilizing any cleaning liquid or solvent.

Clean the sealing areas on the supporting plate (8) and on the bellows edges.

Check

9

Check the sealing edges on the upper support (9) and on the supporting plate (7) on the lower part

Replace the supporting plate or the upper support if necessary.

10

Check the pneumatic bellows (1) and the inside stop (13) for conditions

Replace the pneumatic bellows and the stop if they present:

- Traces of leaks;

- Brittleness, cuts or fissures;

- Deformed inside stop;

- Sealing parts corroded or deformed by the prolonged use.

Installing

11

Press the stop (13) on the supporting plate (7)

Lubricate the stop with prepared and specified glycerin soap.

*BR00.45-B-1023-06A

12

Install the bellows (1) on the supporting plate (7)

Lightly lubricate all bellows mechanical and sealing parts with prepared glycerin soap.

Fit the bellows (1) on the supporting plate (7) manually folding it with the palm of the hands.

Do not utilize metal made tools.

*BR00.45-B-1023-06A

13

Install the bellows (1) and the supporting plate (7) on the lower cylindrical support (4)

14

Manually fit the bellows (1) on the upper support (11) fitting the sealing edge (6) on the upper ring on the support (9)

The complete fitting on the upper support (11) occurs with the pressurization of the bellows.

15

Installing the wheel

AR40.10-B-1100E

Danger!

Life at risk by vehicle lowering in jobs between the wheels and the structure. Risk of injuries by crushing or pinching, in pneumatic suspension jobs

Do not work between the wheels and the rolling space or wheel wells. Carry out testing and adjustment work exclusively from the bottom of the vehicle with the assistance of a pit. Fence with safety the access to moving parts area.

AS32.22-B-0001-01A

16

Lower the vehicle.

17

Pressurize the pneumatic system

18

Check the system for possible pressure leaks

Utilize neutral glycerin soap foam. Do not utilize normal soap foam as it contains caustic soda that corrodes the materials.

19

Perform a test drive

Check the behavior of the pneumatic suspension.

Produtos para reparos

Número

Denominação

Número de pedido

BR00.45-B-1023-06A

Slip fluid DBL 8600.10

A 000 989 08 60

Referenced documents