B13.22-0007-09
1 | Anti-vibration pulley | 8 | Screws | |
2 | Alternator's pulley | 9 | Radiator air shroud | |
3 | Coolant pump's pulley | 10 | 15 mm socket or long handle 15 mm wrench | |
4 | Belt tensioner | |||
5 | Poly-V belt | A | Drive belt diagram (without air conditioning) | |
6 | Intermediate pulley for air conditioning | B | Drive belt diagram (with air conditioning) | |
7 | Air conditioning compressor pulley |
| Remove | ||
Warning | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut. | |
1.1 | Tilt the cabin | On type 693 | |
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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. | |
1.2 | Tilt the engine hood | On type 384.0, 694.0 | |
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1.3 | Open the engine access cover | Refer to the body makers instructions. | |
For buses, the access to carry out maintenance and repair jobs vary according to body type/make. | |||
2 | Turn the tensor (4) clockwise and remove the belt (5) | Trucks: use sliding T-bar with 15 mm socket wrench. | |
Bus: use a 15 mm-wrench with long handle. | |||
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For the fan drive belt stretcher. | |||
3 | Remove the bolts (8) fastening the air shroud (9) to the radiator | Valid only for fan with integrated shroud. | |
4 | Lift out the drive belt (5) | In the case of integrated air shroud (9), to facilitate the removal of the drive belt (5). | |
| Check | ||
5 | Check the drive belt (5) for condition | ||
| Damage profiles for a poly-V belt | ||
If necessary replace it. | |||
6 | Check the condition of the pulleys (1, 2, 3, 4, 6, 7) for eventual damages and/or wear | Remove/install belt pulley/vibration damper | |
Remove/install coolant pump. | |||
Remove/install poly-V belt tensioning device. | |||
In the case of damage and/or wear, replace: | |||
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| Install | ||
7 | Install the drive belt (5) on all pulleys, except on the stretcher (4) | In the case of fan with integrated air shroud, displace the air shroud (9), to facilitate the installation of the drive belt (5). | |
8 | Turn the tensor (4) clockwise and install the belt (5) on the tensor (4) | Trucks: use sliding T-bar with 15 mm socket wrench. | |
Bus: use a 15 mm-wrench with long handle. | |||
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For the fan drive belt stretcher. | |||
9 | Check the perfect seating of the drive belts on the pulleys | ||
10 | Correctly position the air shroud (9) on the radiator and install the bolts (8) | Valid only for fan with integrated shroud. | |
Air baffler fastening bolts to radiator | |||
Warning | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut. | |
11.1 | Return the cab | On type 693 | |
. | |||
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. | |
11.2 | Return the engine hood | On type 384.0, 694.0 | |
. | |||
11.3 | Close the engine access cover | Refer to the body makers instructions. | |
For buses, the access to carry out maintenance and repair jobs vary according to body type/make. |