Replacing the drive belt for the starter motor generator
Drive belt for the starter motor generator
Prerequisite
The drive belt is torn.
CAUTION:
Spring preload.
Injury hazard!
Injury hazard!
- The use of the specified special tool (tool) is mandatory.
- Carry out the described steps properly.
NOTE:
RISK OF DAMAGE
Wrong setting of the drive belt.
Reduced service life of drive belt, subsequent damage.
Wrong setting of the drive belt.
Reduced service life of drive belt, subsequent damage.
- Check the setting of the belt tensioner in the adjustment range after each removal/installation or replacement of the drive belt. The marks must be aligned.
NOTE:
TECHNICAL INFORMATION
If the drive belt is broken, the tensioning device must be fixed in the base position with 2 special tools 11 0 390 .
If the drive belt is broken, the tensioning device must be fixed in the base position with 2 special tools 11 0 390 .
NOTE:
TECHNICAL INFORMATION
If the drive belt is broken, all ancillary components must be checked for damage and functionality.
If the drive belt is broken, all ancillary components must be checked for damage and functionality.
- Have the special tool 0 496 268 (11 0 390)
ready.
- Turn the belt tensioner with a standard tool (1) in arrow direction so that the bores (2) align.
- Secure the belt tensioner with the special tool 0 496 268 (11 0 390) .
- Increase the preload with standard tools (1) on the belt tensioner in arrow direction .
- Secure the belt tensioner with the special tool 0 496 268 (11 0 390)
.
- Feed out the special tool 0 496 268 (11 0 390)
from the belt tensioner out and remove it.
- Feed in the drive belt (1) for the starter motor generator and position it.
- Increase the preload with standard tools (1) on the belt tensioner in arrow direction.
- Feed out the special tool 0 496 268 (11 0 390)
from the belt tensioner out and remove it.
The drive belt (2) for the starter motor generator must be correctly installed.
Check
- Check if the marking (1) of the belt tensioner aligns in adjustment range (2).
Result
» The mark (1) aligns in the adjustment range (2).
Measure
- No measures required.
Check
- Check if the marking (1) of the belt tensioner aligns in adjustment range (2).
Result
» Mark (1) of the belt tensioner is not aligned within the adjustment range (2).
Measure
- Set the tension of the drive belt for the starter motor generator.
- Release the nut (1) by 90°.
- Turn the eccentric (1) with the standard tool (2) in arrow direction
so that the mark (3) aligns in the adjustment range.
- Counter support the eccentric (1) with a conventional tool (2).
- Tighten the nut (3) with a conventional tool (4).
TIGHTENING TORQUES SPECIFICATION
| Lock nut of the tensioning device on eccentric | ||
| M8 | tightening torque | 22 Nm |
