SM42.25-W-0004E | Replace axle modulator | 30.6.11 |
MODEL 930.0, 934.0, 944.0, 952.5, 970.2 with CODE (ZX2) EPB II
W42.25-1243-06
Illustrated on model 944
1 Electrical connectors (voltage supply and CAN connection)
2 Electrical connector (brake pad wear indicator sensor, not for model 930, 934)
3 Electrical connector (rpm sensor)
4 Compressed air line (brake cylinder)
5 Compressed air line (reservoir pressure)
6 Electrical connector (redundancy control)
7 Compressed air line (redundancy control)
31.13 Drive axle axle modulator
Operation no. of operation texts or standard texts and flat rates
Category | Op. no. | Operation text | Time | Acc. no. | Code |
O | 027613 | OPERATION: REPLACE AXLE MODULATOR ON VEHICLE WITH FIFTH WHEEL COUPLING | 3,0h | 42 901 88 | ACHSMOD |
O | 027614 | OPERATION: REPLACE AXLE MODULATOR ON VEHICLE WITH RIGID BODY | 2,1h | 42 901 88 | ACHSMOD |
| Remove/install | ||
| Notes on compressed air connection systems | ||
1 | Switch off ignition | ||
2 | Secure vehicle against rolling | ||
3 | Relieve reservoir pressure of compressed-air system completely | ||
4 | Detach electrical connectors (1, 2, 3, 6) from drive-axle axle modulator (31.13) | Electrical connector (2) not for model 930, 934. | |
5 | Detach compressed air lines (4, 5, 7) from drive-axle axle modulator (31.13) | ||
6 | Remove drive axle axle modulator (31.13) | With regard to return shipment or scrapping of removed parts, please observe the information in your warranty system. | |
Installation: Install new axle modulator on drive axle (31.13). | |||
| |||
| Notes on self-locking nuts and bolts | ||
7 | Install in the reverse order | ||
| Checking | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving off by itself. | |
8 | Start engine and completely fill air brake system at idle speed, then switch off engine | ||
9 | Operate brake pedal and check compressed air connections on drive-axle axle modulator (31.13) for signs of leaks | ||
Danger! | Risk of death caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand | Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY STOP switch to shut down test stand. | |
10 | Perform function test on brake test stand |
Electropneumatic brake (EPB)
Number | Designation | Model | Model | Model | |
BA42.25-N-1004-01A | Bolt, axle modulator to frame | Nm | 90 | 90 | 90 |
Parts ordering notes
Part no. | Designation | Quantity |
A 000 429 42 24 05 | Axle modulator | 1 |
Referenced documents
- ah0000n000101a Notes on self-locking nuts and bolts
- ah0018n000101a Notes on compressed air connection systems
- ar4210w0900c Remove/install compressed air connector coupling
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
- as4200z000101a Risk of death caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand