APRIL 2019 PRODCT DATA Doc. No. 050267 (EN- Rev. 006

PRODUCTDATA

11

21

3

23

4

1

K015384 K019882 K125537

K017224

K015384 K019882

K125537 K135780 *

K017224

Lift Axle Valves - TEBS controlled

APRIL 2019Doc. No. Y050267 (EN- Rev. 006)

Standard Symbol as DIN ISO 1219

FunctionThe TEBS controlled Lift Axle Valve AE1141 is used for trailers with electronic braking systems to control the lift axle(s) fully automatically according to the vehicle load.

Within the product range there are variants available with a sole-noid and those where control is purely pneumatic. Some variants are delivered with push-to connect (PTC) fittings, these variants have two ports “21” and two ports “23” to simplify the piping work.

The load sensing and the electronic control functions are achieved by the TEBS brake module via port “42”. Without electric power supply, any lift axles are lowered.

The lift axle(s) can be lowered manually if the vehicle is unladen e.g. with the 3/2 Control Valve AE4265.

(Note: This is not permissible if the TEBS incorporates RSP. In this case the lift axle is lowered by an electrical or pneumatic signal sent from the TEBS brake module; see page 2)

The valve can also be used as a solenoid valve for other applications as lift axle control. System diagram examples can be found on page 3.

Maximum operating pressure: 10 bar

Operating temperature range: -40 °C to +80 °C

Nominal voltage: See table

Weight: See table

Min. switching pressure for pneumatic version: 5 bar

Technical Features

* Valve K135780 has a pneumatic connection (not shown) and valve K125537 has a electrical connection as shown on picture above.

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Product Overview

Installation Instructions

Part No. Type No. Solenoid Port 1 and 11

Port 21 and 23 Port 3 Port 4 Electrical

ConnectionWeight approx.

K1255371)

AE 1141

24 V M16 x 1.5 M16 x 1.5 M16 x 1.5 (exhaust valve supplied but not fitted) -

Bayonet DIN72585

0.40 kg

K0153841) 24 V

PTC 2) R8x1 each 2 x PTC R8x1

exhaust valve fitted 3) (not removable)

-0.55 kg

K0198821) 12 V 0.55 kg

K0172241)

- PTC R8x1 -0.55 kg

K1357801) M16 x 1.5 M16 x 1.5 M16 x 1.5 (exhaust valve supplied but not fitted) 0.40 kg

1) Part No. will carry the suffix N00 denoting that it is supplied without packaging. 2) PTC = push-to-connect.3) Valves manufactured before the middle of 2015 had a M16x1.5 port fitted with an exhaust valve.

Additional Parts Part No.Blanking Plug for 8 mm pipe 96210008PTC Release Tool (plastic) for 8 mm pipe 96608010PTC Release Tool (metal) for 8 mm pipe 96608020

Part No. for Service KitSolenoid - 12V K020018K50Solenoid - 24V K016334K50

For electrically controlled valves:

When using the AE1141 – K019882 in conjunction with the TEBS G2 brake module, this valve needs to be connected to AUXIO1 or 2. The output voltage for these ports has to be set to 6 V (Note: This is necessary to protect the 12 V solenoid against overheating).

For pneumatically controlled valves:

AUXIO settings

TBMPin

AUXIO1

AUXIO2

AUXIO3

N/A

N/A

Output

Disabled

Disabled

LAC1 Solenoid/Bulb: S

Type Function name Error detection V avg[V]

6V

Screenshot from the diagnostic program ECUtalk®:

- TEBS G2.0, G2.1 and G2.2 Standard up to CN1023


- TEBS G2.0, G2.1 and G2.2 Standard up to CN1023


- TEBS G2.2 Standard (CN1030 and above), Standard Plus and Premium


- TEBS G2.2 Standard (CN1030 and above), Standard Plus and Premium

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PRODUCTDATA

21

28

42

2 x 1

22

12*

4 x 23

2 x 22

12

11 21*

11

11

1

321

22

1 1 - 2 22

4

2 x 212 x 23

2 x 21 2 x 23

3

1

1

23

8

8

5

7

11 2 x 21

R 8

x1

KN

OR

R-B

RE

MS

ET

EB

S G

2

EC

U

R 1

2x1.

5

4

21

28

42

2 x 1

22

12*

4 x 23

2 x 22

12

11 21*

11 21

22

1 1 - 2 22

2 x 21

2 x 231

3

4

1

23

4

5

6

11 2 x 21

R 8x1

KN

OR

R-B

RE

MS

ET

EB

S G

2

EC

U

R 12x1.5

4



System DiagramsSchematic diagram of an Air suspension system for a 3 axle semi-trailer with raise/lower function, one fully automatic lift axle controlled by the TEBS G2 brake module.

Schematic diagram of an Air suspension system for a 3 axle semitrailer with raise/lower function, two fully automatic lift axles controlled by the TEBS G2 brake module.

Pos. Qty Description1 - Reservoir2 - Drain Valve3 1 Levelling Valve without height limitation4 1 Lift Axle Valve, pneumatically controlled

Pos. Qty Description5 1 Distributor block6 1 Raise/Lower Valve, electrically controlled7 1 Raise/Lower Valve, pneumatically controlled8 1 Lift Axle Valve, electrically controlled

12* - this port has different numbering: 12 (TEBS G2.0) 41 (TEBS G2.1) 43 (TEBS G2.2)

21* - this port has different numbering: 21 (TEBS G2.0) 22 (as of TEBS G2.1)

*) not specified pipes: R 8x1

*) not specified pipes: R 8x1

12* - this port has different numbering: 12 (TEBS G2.0) 41 (TEBS G2.1) 43 (TEBS G2.2)

21* - this port has different numbering: 21 (TEBS G2.0) 22 (as of TEBS G2.1)

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PRODUCTDATA

K125537

K015384K019882

K015384K019882

40

14

101,7113,7

14

14,542

54

M16x1,5 5x

2,3

29,7

49,3

40,2

22,5

13

166±293±2

47±120

±140

±120

±1

27±1

14±0.2

2828

116±2127±2

12±112±1

166±276±2

37±117±1

14±0.2

56±2

15±124±1

20±1

40±1 20

±1

15±1

34±0

.2

16

143±2155±2

+1 - 0



Dimensions

} manufactured up to the middle of 2015

} manufactured after the middle of 2015

Fixing holes: 2xØ8.5



Port 3 must not point downwards!



Electrical connector: DIN72585-A1-2.1



Installation position



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PRODUCTDATA

K017224

K017224

K135780

40±1

20±1

51±2 138.5±2

5±1

14±0.2

28±128±1

12±112±1

100±2

93±2

40±1

20±1

51±2

147±2

15±1

14±0,215±1

56±2

15±124±1

135±2

76±2

20

34±0

,2

+1 - 0



manufactured up to the middle of 2015

manufactured after the middle of 2015










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Moosacher Strasse 80 | 80809 Munich | Germany Tel: +49 89 3547-0 | Fax: +49 89 3547-2767W W W. K N O R R - B R E M S E C V S . CO M

Knorr-Bremse Systems for Commercial Vehicles

Up-to-date information on our products can be found on our website www.knorr-bremsecvs.com

Note All information is subject to change. A printed version of this document may therefore not correspond to the latest revision. To obtain the latest version, please visit our website www.knorr-bremseCVS.com or contact a Knorr-Bremse representative in your area.

If service work is carried out on a vehicle based on information provided herein, it is the responsibility of the workshop to ensure the vehicle is fully tested and in full functional order before the vehicle is returned into service. Knorr-Bremse accepts no liability for problems caused as a result of appropriate tests not being carried out.

Copyright © Knorr-Bremse AG All rights reserved, including industrial property rights applications. Knorr-Bremse AG retains any power of disposal, such as for copying and transferring.

Disclaimer The information contained herein is intended for the exclusive use of trained persons within the commercial vehicle industry, and must not be passed on to any third party. All recommendations regarding products and their servicing or usage are with reference to Knorr-Bremse products and should not be considered applicable to products from other manufacturers. This information does not purport to be all-inclusive and no responsibility is assumed as a result of its use. We cannot accept any liability nor offer any guarantee regarding data accuracy, completeness or timeliness. The information does not represent any guarantee or ensured characteristics of the Products or Systems described. No liability can be accepted based on the information, its use, recommendations or advice provided. In no event may we be held liable for any damage or loss except in the case of wilful intent or gross negligence on our part, or if any mandatory legal provisions apply. This disclaimer is an English translation of a German text, which should be referred to for all legal purposes. Any legal disputes arising from the use of this information shall be subject to German law.

Revision DetailsRev. 006 April 2019 New Layout

System DiagramsLift Axle Valves, electrically controlled

Supplied with current: Charged

Supplied with current: Exhausted

Supplied with current: Alternated circuit

1 = Supply

23 = Output

3 = Exhaust

11 = To lock

21 = To lock

1 = Supply

23 = To lock

3 = Exhaust

11 = Input

21 = Output

1 = Supply

23 = To lock

3 = Output

11 = Output

21 = Input

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Documents

APRIL 2019 PRODCT DATA Doc. No. 050267 (EN- Rev. 006