AR42.25-W-3104D | Remove/install axle modulator | 28.5.10 |
MODEL 970, 972, 974, 975, 976 with CODE (ZX2) EPB II
W42.25-1214-11
1 Electrical connectors (voltage supply and CAN connection)
2 Electrical connector (brake wear sensor)
3 Electrical connector (rpm sensor)
4 Compressed air line (brake cylinder)
5 Compressed air line (reservoir pressure)
6 Compressed air line (redundancy control)
7 Electrical connector (redundancy control)
31.13 Drive-axle axle modulator
Modification notes
| Remove/install | ||
| Notes on checking axle modulator before replacement | ||
| 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, 7) from drive-axle axle modulator (31.13) | ||
5 | Detach compressed air lines (4, 5, 6) from drive-axle axle modulator (31.13) | ||
6 | Remove Drive-axle axle modulator (31.13) | | |
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 squeezed 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)
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