Check air suspension for leaks

AR32.22-D-8000TSR

Check air suspension for leaks

29.01.2020

Model

907

with code CB2 (Comfort air suspension)

Shown on model 907 without code IT5 (5.0 tons)

1

Cover

6

Compressed air connections

10

Compressed air connections

2

Retaining clips

7

Valve block

11

Compressed air reservoir

4

Compressor

8

Compressed air connection

12

Compressed air lines

5

Compressed air connection

9

Air suspension bellows

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 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

Topical note

Notes on air suspension

AH32.22-N-1000-01H



Remove

1

Fill air suspension with compressed air.

If the air suspension was unpressurized.

AR32.22-D-2019TSR

2

Raise vehicle.

AR00.60-D-1000-04TS

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01TS

3

Remove spare wheel.

Model 907
with code CB2 (Comfort air suspension)
with code R65 (Spare wheel bracket below frame end)
If the spare wheel is mounted just before the cover (1).

4

Remove cover (1).

 To do so, unclip retaining clips (2).

 Installation: Check retaining clips (2) for damage.

If damage is found,



Replace affected retaining clips (2).



Check

5

Check component parts of air suspension for damage and wear.

If damage or wear is present,



replace affected components.

6

Spray compressed-air connection (5) of compressor (4) with leak detection spray and check for leakage.

Leak detection spray

*BR00.45-Z-1002-03A

If a leakage is present,



replace affected components.

7

Spray compressed-air connections (6) of valve block (7) with leak detection spray and check for leaks.

Leak detection spray

*BR00.45-Z-1002-03A

If a leakage is present,



replace affected components.

8

Remove air suspension bellows (9) from crossmembers.

AR32.22-D-2016TSR

 Do not disconnect compressed-air lines (12).

9

Fill air suspension with compressed air.

AR32.22-D-2019TSR

10

Spray compressed-air connections (8) of air suspension bellows (9) with leak detection spray and check for leaks.

Leak detection spray

*BR00.45-Z-1002-03A

If a leakage is present,



replace affected components.

11

Spray leak detection spray onto air suspension bellows (9) and check for leaks.

Leak detection spray

*BR00.45-Z-1002-03A

If a leakage is present,



replace affected air suspension bellows (9).

AR32.22-D-2016TSR

12

Attach air suspension bellows (9) to crossmembers.

AR32.22-D-2016TSR

13

Spray compressed-air connections (10) of compressed-air reservoir (11) with leak detection spray and check for leaks.

Leak detection spray

*BR00.45-Z-1002-03A

If a leakage is present,



replace affected components.

14

Spray compressed-air lines (12) with leak detection spray and check for leaks.

Leak detection spray

*BR00.45-Z-1002-03A

If a leakage is present,



replace affected components.



Install

15

Install cover (1).

 To do so, clip in retaining clips (2).

 Check retaining clips (2) for damage.

If damage is found,



replace affected retaining clips (2).

16

Install spare wheel.

Model 907
with code CB2 (Comfort air suspension)
with code R65 (Spare wheel bracket below frame end)
If the spare wheel was removed.

17

Lower vehicle.

Calibrate

18

Calibrating driving level.

AR32.22-D-9000TSR

Repair materials

Number

Designation

Order number

BR00.45-Z-1002-03A

Leak detection spray

Christof Fischer GmbH
www.kaeltefischer.de