7.19.4 Battery-charging generator – Drive belt and belt tensioner replacement
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Part No.
Qty.
Torque wrench, 20-100Nm
F30026582
1
Ratchet adapter
F30027340
1
Drive belt
(→ Spare Parts Catalog)
Belt tensioner
(→ Spare Parts Catalog)
1
WARNING
Heavy object.
Risk of crushing!
• Use appropriate lifting devices and appliances.
Replacing drive belt and belt tensioner
1.
Remove protective cover.
2.
Slacken screws (2) and (3) by half a turn.
3.
Mount socket or box wrench on screw (1)
and press belt tensioner in direction of ar‐
row as far as the stop.
4.
Tighten screw (3).
5.
Remove drive belt.
6.
Screw on screw (2) and replace belt ten‐
sioner.
7.
Fit new drive belt.
Tensioning drive belt
1.
Slacken screw (3) by half a turn.
Result:
Belt tensioner moves against the drive belt and tensions it.
2.
Tighten screw (3) to specified torque using a torque wrench.
Name
Size
Type
Lubricant
Value/Standard
Screw
M10x1.5
Tightening torque
60Nm +5Nm
MS150049/02E 2012-11 | Task Description | 133
TIM-ID: 0000007421 - 007