MTU 12V2000G65 Operating Instructions Manual page 133

Checking drive belt tension
1. Position pretension gage on drive belt mid-
way between belt pulleys.
2. Actuate pushbutton to press the tester uni-
formly on the drive belt surface until the
spring disengages.
3. Do not press any further, otherwise the dis-
play value will be falsified.
4. Take off tension tester without changing the
position of the display arm.
5. Read off measured value at the intersection
of display arm and "KG" scale. The specified
values are listed in the table below.
Application
Battery-charging generator drive
belt
6. If the measured value does not correspond to the specified measured value, adjust the drive belt tension.
Adjusting drive belt tension
1. Release screws (2, 3).
2. Tension drive belt with tensioning nut (1) and
check belt tension.
3. Tighten screw (2) to specified torque using a torque wrench.
Name
Screw
4. Tighten screw (3).
5. Check drive belt tension.
Final steps
u Install protective cover.
Specified value (new drive belt)
450 N -50 N
Size Type
M18 Tightening torque
MS15018/03E 2016-02 | Battery-Charging Generator | 133
Specified value (used drive belt)
350 N -50 N
Lubricant Value/Standard
(Engine oil) 40 Nm +4 Nm