Technical data

ManualsBrandsMTU ManualsAutomotive12 V 4000 C21

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Battery-Charging Generator 6–53

6.17 Battery-Charging Generator

6.17.1 Battery-charging generator drive – Drive-belt check and adjustment

Preconditions

• Engine is stopped and starting disabled.

Special tools

Designation / Use Part No. Qty.

Belt-tension tester

Belt condition check

1. Remove guard cover.

2. Check belt for contamination by oil, cracks, wear,

and signs of overheating.

3. Replace drive belt:

• If belt is oily;

• If belt shows signs of overheating;

• If ribs are broken around the entire

circumference (A);

• If ribs are broken around the entire

circumference and material is broken off in

some places (B). (→ Page 6 – 56)

4. Inst

all guard cover.

Belt tension check

1. Remove guard cover.

2. Place belt-tension tester onto drive belt m idway

between the belt pulleys.

3. Press button uniformly down on drive-belt surface

until spring disengagement can be heard and felt.

4. Do not press any further, otherwise the reading

is not exact.

5. Take off belt-tension tester without changing the

position of the indication arm.

6. Rea

d off measuring value at the intersection of

indication arm and "KG" scale.

• Spec

ified belt tension for new drive belt:

450 N –50 N

• Speci

fied belt tension for used drive belt:

350 N –50 N

7. If the measured value deviates from the specified

belt tension, readjust belt tension.

8. Install guard cover.