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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.
1/6
AE1141
PD-5
03-4
00
PRODUCTDATALift Axle Valves - TEBS controlled
APRIL 2019Doc. No. Y050267 (EN- Rev. 006)
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
Screenshot from the diagnostic program ECUtalk®:
- TEBS G2.0, G2.1 and G2.2 Standard up to CN1023
Screenshot from the diagnostic program ECUtalk®:
- TEBS G2.2 Standard (CN1030 and above), Standard Plus and Premium
Screenshot from the diagnostic program ECUtalk®:
- TEBS G2.2 Standard (CN1030 and above), Standard Plus and Premium
2/6
AE1141
PD-5
03-4
00
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
Lift Axle Valves - TEBS controlled
APRIL 2019Doc. No. Y050267 (EN- Rev. 006)
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)
3/6
AE1141
PD-5
03-4
00
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
Lift Axle Valves - TEBS controlled
APRIL 2019Doc. No. Y050267 (EN- Rev. 006)
Dimensions
} manufactured up to the middle of 2015
} manufactured after the middle of 2015
Fixing holes: 2xØ8.5
Fixing holes: 2xØ8.5
Fixing holes: 2xØ8.5
Port 3 must not point downwards!
Port 3 must not point downwards!
Port 3 must not point downwards!
Electrical connector: DIN72585-A1-2.1
Electrical connector: DIN72585-A1-2.1
Electrical connector: DIN72585-A1-2.1
Installation position
Installation position
Installation position
4/6
AE1141
PD-5
03-4
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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
Lift Axle Valves - TEBS controlled
APRIL 2019Doc. No. Y050267 (EN- Rev. 006)
manufactured up to the middle of 2015
manufactured after the middle of 2015
Fixing holes: 2xØ8.5
Fixing holes: 2xØ8.5
Fixing holes: 2xØ8.5
Port 3 must not point downwards!
Port 3 must not point downwards!
Port 3 must not point downwards!
Installation position
Installation position
Installation position
5/6
AE1141
PD-5
03-4
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PRODUCTDATALift Axle Valves - TEBS controlled
APRIL 2019Doc. No. Y050267 (EN- Rev. 006)
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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AE1141
PD-5
03-4
00