Remove/install poly-V belt

AR13.22-S-1202PS

Remove/install poly-V belt

19.11.2018

Engine

642 in model 470, 471

1

Bolts

4

Bracket

7

Tensioner pulley

2

Distributor

5

Tensioning device

3

Bolts

6

Poly-V-belt

 Warning

Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.

No parts of the body or limbs should be within the operating area of mechanical components when moving components.

AS00.00-Z-0009-01A

 

Remove/install

1

Remove noise damper upstream of charge air cooler.

AR09.40-S-6930PS

 Installation: Only install upper engine cover after engine test run.

2

Remove screws (1) and remove distributor (2) with oil lines from bracket (4).

3

Remove screws (3) and remove bracket (4).

Topical note

Notes on bolted connections with self tapping screws

AH00.00-P-0007-01SF

 Screw, noise damper holder upstream of charge air cooler to timing case cover

*BA01.40-N-1009-01S

4

Relieve tensioning device (5) and remove poly-V-belt (6) from tensioner pulley (7).

Poly-V-belt routing diagram

AH13.22-S-0001-01PS



Pin for locking poly-V belt tensioning device

WF58.50-S-1325-02P

AR13.22-S-3902-05PS

5

Remove poly-V-belt (6).

Poly-V-belt routing diagram

AH13.22-S-0001-01PS


Do not lubricate poly-V-belt (6); install dry.
Otherwise, poly-V-belt (6) can slip.

 Installation: Observe routing diagram of poly-V belt(6).

6

Check poly-V-belt (6) for wear and damage.



Damage profiles for a poly-V belt

AP13.22-D-1351-01A

If there is a problem,



Install new poly-V-belt (6).

7

Install in the reverse order.



Check

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

8

Perform engine test run and check poly-V-belt (6) is running correctly.

 Crankcase, timing case cover, bottom half of crankcase

Number

Designation

Engine 642 in model 470, 471

BA01.40-N-1009-01S

Screw, noise damper holder upstream of charge air cooler to timing case cover

Nm

11,5