4

1

3

43

KNORR-BREMSEBR 5616

II 14589.. . . . . . . . . . .

2

4142

41

42

4322

11

21

KNORR BREMSE

WLTruckABS

WLParking

WLServiceBrake

ILTrailer

from CANJ 1939

WLTrailerABS

Knorr-Bremse Antilock Braking System for Trucks - 4S/4M

1 2

3

24

25

26

8

9

6

5

7

1718

19 20

11

12

10

13

14

15

22

23

21

27

416

P-00291/LT-ABS13.10.2003 EN

Service BrakeSupply

Parking BrakeAir SuspensionAuxiliary EquipmentElectrical Signal

T/AS2

02

1

1

21

2

21222324

3

3

3

12

3

11 21

12 22

3

1

1

11 12

11 12

11 22

21

2

2

3

3

4

2

3

1

2

3

1

1 Compressor2 Air Processing Unit3 Air Reservoir Circuit 14 Air Reservoir Circuit 25 Pressure Switch Circuit 16 Pressure Switch Circuit 2

7 Foot Brake Valve8 ABS Modulator Valve9 Bake Chamber10 Sensing Ring and Speed Sensor11 ABS-ECU12 Load Sensing Valve

13 Spring Brake14 Air Disc Brake15 Brake Disc16 Air Reservoir Circuit 317 Check Valve18 Hand Brake Valve

19 Relay Valve20 Pressue Switch21 Trailer Control Valve22 Coupling Head "Supply"23 Coupling Head "Control"24 ABS-Connection ISO 7638

25 Solenoid Valve26 Operating Cylinder27 Test Connector

WL Warning LampIL Information Lamp

to Air Suspension

KNORR-BREMSESystems for Commercial Vehicles