B25.20-0006-09
1 | Hydraulic reservoir | 11 | Clutch slave | |
2 | Breather | 12 | Pneumatic tubes of the hydro-servo-pneumatic unit | |
3 | Breather cover | 13 | Tubes clamp | |
4 | Connection elastic ring | 14 | Clamp bolt | |
5 | Hydraulic sender cylinder | 15 | Plain washer | |
6 | Cylinder fastening bolt | 16 | Self-locking nut of the clamp | |
7 | Cylinder connection male nut | 17 | Clamp support | |
8 | Poliamide hydraulic tubes (PA11 or 12) | 18 | Support bolt | |
9 | "Female" connection of the hydraulic tubes lower link | 19 | Support self-locking nut | |
10 | Connection at the hydro-servo-pneumatic cylinder |
| Remove/install | ||
1 | Turn off the master switch | ||
Warning | Risk of injury caused by pinching and crushing when opening and closing engine hood | No one should be within the swivel range of the engine hood as it is being opened or closed. Always open engine hood all the way to the end position until this engages in the front locks. | |
2.1 | Open the hood and actuate the safety lock | Truck 384 | |
2.2 | Open the front cover | Bus 368, 382, 384, 685 | |
The access for the works and repairs execution, vary according to the body type/manufacturer | |||
Caution | Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | |
3 | Remove by suction the hydraulic reservoir fluid (1), using a bleeding equipment to remove totally the hydraulic fluid from the tubes | The hydraulic fluid removed from the system must not be reused. | |
4 | Unfasten the poliamide tubes (8) at the connection (7) with the sender cylinder (5) | ||
5 | Unfasten the poliamide tubes connection (8) from the lower end at the connection (10) with the hydro-servo-pneumatic cylinder | Turn the female nut (9) in the connection (10). | |
6 | Cut eventual plastic clamps which hold the electric wires and harness | Installation: Install new plastic clamps. | |
7 | Remove the nuts (16), the bolts (14) and the washers (15) from the clamps (13) | Installation: Replace the clamps (13) in such a way that its rubber protective coating continues in perfect conditions. | |
The use of not protected metallic clamps may damage the poliamide tubes. | |||
8 | Remove the tubes (8) carefully in order not to fold them | Installation: The tubes must have been previously installed with the loosen new clamps (13) and then, they must be fastened to the cylinders, the sender one (5) and the hydro-servo-pneumatic one (11). | |
| Clean | ||
9 | Clean the components, including the poliamide tubes (8) | The components can only be washed with drugstore available alcohol. | |
| Check | ||
10 | Check the condition of the tubes (8) and the sealing components in general | Replace cut or deformed tubes, and tubes whose connections are in poor conditions or with stripped thread. Clamps (13) with damaged inner lining. Supplementary plastic clamps. Connection elastic rings (4). Damaged filter or reservoir. | |
11 | Install in reverse order | ||
12 | Replenish the hydraulic reservoir with new brake fluid | Use the specified brake fluid. | |
Brake fluid, DB supply specification 7760.30 (DOT 4) | |||
13 | Bleed the hydraulic system |
| |
Valid for models 368, 384, and 685 | |||
Valid for model 382 | |||
14 | Check the tightness | ||
15 | Check the perfect operation of the clutch |
Documenti citati
- ar2520b0070b
- ar2520b0070xa
- ar2520b0070xb
- as4250z000101a Pericolo di avvelenamento in caso di ingestione di liquido freni Pericolo di lesioni in caso di contatto della cute e degli occhi con il liquido freni
- as8840z000101a Pericolo di lesioni dovuto a incastro e schiacciamento in fase di apertura e chiusura del cofano motore