Modification notes |
31.03.2017 | Remove assembly plate with mounted fifth wheel coupling, added. | Operation step 4.1 | AR31.10-W-0001BB |
31.03.2017 | Remove fifth wheel coupling, added. | Operation step 4.2 | AR31.10-W-0001BA |
31.03.2017 | Remove slider with mounted fifth wheel coupling, added. | Operation step 4.3 | AR31.10-W-0001HB |
1 | Air lines (brake cylinder) |
2 | Compressed air line (redundancy pressure) |
3 | Electrical connector (rpm sensor) |
31.08 | Drive axle axle modulator |
W42.25-1076-11
3 | Electrical connector (rpm sensor) |
4 | Electrical connector (voltage supply and CAN connection) |
5 | Compressed air lines (reservoir pressure) |
31.08 | Drive axle axle modulator |
W42.25-1077-11
Warning | 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. | Secure vehicle to prevent it from starting off by itself. Wear buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. | |
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 OFF switch to shut down test stand. | |
Notes on checking axle modulator before replacement | |||
Notes on compressed air connection systems | |||
| Remove/install | ||
1 | Switch off ignition | ||
2 | Secure vehicle against rolling | ||
3 | Relieve reservoir pressure of compressed-air system completely | ||
4.1 | Remove assembly plate with mounted fifth wheel coupling | Fifth wheel coupling with separate assembly plate | |
4.2 | Remove fifth wheel coupling | Fifth wheel coupling without separate assembly plate | |
4.3 | Remove slider with mounted fifth wheel coupling | Fifth wheel coupling with slider | |
5 | Detach electrical connectors (3, 4) from drive-axle axle modulator (31.08) | ||
6 | Detach compressed air lines (1, 2, 5) from drive-axle axle modulator (31.08) |
| |
Vehicles with compressed air connector VOSS "232" or SCHÄFER "SDF" | |||
7 | Remove Drive-axle axle modulator (31.08) | Bolt, axle modulator to frame | |
8 | Install in the reverse order | ||
Check | |||
9 | Start engine and completely fill air brake system at idle speed, then switch off engine | ||
10 | Switch off ignition | ||
11 | Operate brake pedal and lock in place using brake pedal jack | Brake pedal jack | |
12 | Check compressed air connections on axle modulator for drive axle (31.08) for leaks | Use commercially available leak detector spray during visual inspection. | |
13 | Remove brake-pedal winch | ||
14 | Perform function test on brake test stand |
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Brake pedal jack