Remove/install check valve at air controller unit of exhaust aftertreatment system

AR14.40-B-2032A

Remove/install check valve at air controller unit of exhaust aftertreatment system

31.10.2019

Engine

924.9 in model 368, 384.0/2, 685.282/284/289/290, 979.2

Engine

926.9 in model 368, 382.17/18, 384.0

Represented in vehicle 382.177

1

Compressed air inlet

2

Compressed air outlet

3

Connection bolt

4

Connection bolt

5

Check valve (8.01)

6

Pressure regulating valve (33.03)

 

Remove/install

1

Remove the pressure regulating valve (33.03) (6)

Remove/install pressure limiting valve at air controller unit of the exhaust aftertreatment system
.

AR14.40-B-2016A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on compressed air connection systems

AH00.18-N-0001-01A

2

Loosen the connection bolt (4) from the compressed air inlet (1)

 After shutting the engine down, the compressed air continues to flow through some compressed air lines for approximately 3 min. For this reason, start working on the compressed air control unit, after this time has elapsed.

 Firstly, slacken the connection screw (4) in two turns to release the pressure of the system and then remove it completely.

 .Compressed air connection system "VOSS 232"

*BA00.18-B-1002-01A

3

Loosen the connection bolt (3) from the compressed air outlet (2)

 Firstly, slacken the connection bolt (3) by two turns to let the pressure out of the system, then remove it completely.

 .Compressed air connection system "VOSS 232"

*BA00.18-B-1002-01A

4

Remove the check valve (8.01) (5)

5

Installation in reverse order

6

Charge the compressed air system up to the limiting pressure

 Compressed air piping

Number

Designation

Model all (BUS, TRUCK)

BA00.18-B-1002-01A

Compressed air connection system "VOSS 232"

M16

Nm

14

M14

Nm

14

M22

Nm

14