MTU 12 V 4000 G73 Operating Instructions Manual page 157

7.18.3 Battery-charging generator – Drive belt and belt tensioner replacement
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Torque wrench, 20-100Nm
Ratchet adapter
Drive belt
Belt tensioner
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
Screw
3. Tighten screw (2) to specified torque using a torque wrench.
Name
Screw
Size Type
M10x1.5 Tightening torque
Size Type
M10x1.5 Tightening torque
(→ Spare Parts Catalog)
(→ Spare Parts Catalog)
Lubricant
Lubricant
MS150029/02E 2013-03 | Task Description | 157
Part No. Qty.
F30026582 1
F30027340 1
1
Value/Standard
60Nm +5Nm
Value/Standard
42Nm