AR25.20-T-0300BA | Clutch servo unit removal and installation | 31.5.01 |
ENGINE 457.944 in MODEL NMB613.358 /388 with TRANSMISSION 714.120 /140
1 Clutch servo assistance
2 Clutch operation hydraulic line
3 Clutch booster pneumatic line
4 Clutch wear indicator sensor
T25.20-0025-03
| Remove/install | ||
Danger! | Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes. | Pour brake fluid only into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | |
| Notes on handling brake fluid | All models | |
1 | Release compressed air from ancillary consumer circuit | Use the drain valve on the ancillary consumer circuit reservoir to do this. | |
2 | Detach lower engine compartment paneling | Only perform the steps necessary for removing the engine compartment paneling under the transmission. | |
3 | Unplug electrical connector from clutch wear indicator sensor (4) | Installation: When replacing the clutch booster (1) or parts of the clutch, the clutch release travel must be newly stored in the drive control (FR) control unit. | |
4 | Detach clutch actuation hydraulic line (2) from clutch booster (1) | Collect escaping fluid with a suitable container. | |
5 | Detach clutch booster pneumatic line (3) from clutch booster (1) | Installation: Replace sealing rings. | |
6 | Detach clutch booster (1) from transmission | ||
7 | Install in the reverse order | ||
8 | Bleed clutch operating system | ||
9 | Perform function test on clutch |