D13.21-0006-08
1 | Poly-V belt | 4 | Bracket | 7 | Tensioning device | ||
2 | Tensioner pulley | 5 | Screw/bolt | ||||
3 | Guide pulley | 6 | Screw/bolt |
D13.21-0007-09
1 | Poly-V belt | 8 | Measuring instrument for poly-V belt tension | Pfeil | Measuring point |
Danger ! | Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities. | No parts of the body or limbs should be within the operating range of the mechanism when moving components. | |
Danger ! | 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 closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
| Remove | ||
1 | Lift/jack up vehicle | ||
2 | Unscrew screw/bolts (5, 6) on the clamping device (7) | ||
3 | Detention clamping device (7) on bracket (4) | ||
4 | Remove poly-V belt (1) | ||
| Check | ||
5 | Check poly-V belt (1) for signs of damage. | ||
| Damage profiles for a poly-V belt | ||
If damage is present: | |||
| |||
Replace poly-V belts (1). | |||
6 | Check tensioner pulley (2) for damage | If damage is present: | |
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Replace tensioner pulley (2). | |||
ENGINE 651 | |||
7 | Check guide pulley (3) for damage | If damage is present: | |
| |||
Replace guide pulley (3). | |||
ENGINE 651 | |||
8 | Check belt pulley on A/C compressor for damage | If damage is present: | |
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Replace A/C compressor. | |||
| Install | ||
9 | Fit on poly-V belt (1) | ||
10 | Lay on screw/bolt (5, 6) in as far as the clamping device (7) can still be moved | ||
11 | Place measuring instrument for poly-V belt tension (8) at measuring point (arrow) | Use a commercially available electrical measuring instrument for poly-V belt tension (8) with a measuring range of at least 120 to 140 N. | |
12 | Tension poly-V belt (1) with the clamping device (7) until the shown measurement on measuring instrument for poly-V belt tension (8) is within tolerance | Poly-V belt tension (scale on measuring instrument) | |
13 | Tighten screw/bolts (5, 6) | The clamping device (7) must no longer be adjusted. | |
14 | Lower vehicle | ||
15 | Carry out an engine test run | Perform an engine test run for about 5 minutes | |
16 | Turn off engine | ||
17 | Raise vehicle | ||
18 | Measure tension of the poly-V belt (1) with measuring instrument for poly-V belt tension (8) at the measuring point (arrow) | Poly-V belt tension (scale on measuring instrument) | |
If the measurement is not below the tolerance: | |||
| |||
Repeat adjustment for tension of the poly-V belt (1). | |||
19 | Tighten screw/bolts (5, 6) with torque | ENGINE 651 | |
20 | Lower vehicle |