Remove, install V-belt

AR13.21-B-0100E

Remove, install V-belt

28.11.2019

Engine

904.9, 906.9, 924.9, 926.9 in model 368.0/1, 382.1, 384.06/07, 634.0, 685.282/284/289/290, 979.2

1

Belt (double)

2

Belt (double)

3

Intermediate/tensioning pulley

4

Anti-vibration pulley

5

Fan pulley

6

Nut

7

Regulating screw



Remove

1

Switch off the main switch or disconnect the battery negative cable

2

Open the engine compartment hood

 Refer to the body makers instructions.

3

Loosen the nut (6)

 Loosen the nut (6) enough to move the tensioner (approximately 1 turn).

4

Using the adjusting screw (7), loosen the belts (1 and 2) and remove them



Check

5

Check the belts (1 and 2) for conditions

 Replace them in the case of damages, wearing, dryness, cracks , contamination with oil or traces of overheating.

6

Check the belts (3, 4 and 5) for conditions

 Clean the pulleys eliminating eventual signals of corrosion. Replace them in the case of wearing/damages.



Install

7

Install the fan drive belts (1 and 2)



AP13.20-B-1350-01A

 Fit the belt (1) to the pulleys (3 and 4) and the belt (2) to the pulleys (3, 5). Using the adjusting screw (7), tension the belts to the recommended value. Then tighten the nut (6).

.Belt tension. obtained with the measuring device (fan belts)

*BE13.21-B-1002-01B

 .Tensioning device bolt on the oil filter housing

*BA13.25-B-1001-01A

 Measuring instrument

*001589692100

Multi-belt transmission

Number

Designation

Engine 904.9, 906.9, 924.9, 926.9

BE13.21-B-1002-01B

Belt tension. obtained with the measuring device (fan belts)

Belt tension. obtained with the measuring device (using NEW BELT)

N

530

Belt tension. obtained with the measuring device (using USED BELT)

N

400...450

 Belt stretching device

Number

Designation

Engine 902.9; 904.9; 906.9

BA13.25-B-1001-01A

Tensioning device bolt on the oil filter housing

Nm

50