Remove/install belt drive components

AR13.20-P-0001ELS

Remove/install belt drive components

17.11.2017

Engine

276.8 in model 207, 212, 218

1

Tensioning device

2

Hexagon

3

Drift

4

Guide pulley

5

Guide pulley

 

Remove/install

 Warning

Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension

Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.

AS00.00-Z-0001-01A

1

Remove upper engine cover

 Installation: Ensure correct seating of the engine cover.

2

Unfasten charge air cooler and pull to the front with attached coolant lines

AR09.41-P-6819ELS

3

Slacken poly-V belt and remove

Routing diagram for poly-V belt

AR13.22-P-3902-02MM

 Installation:
Do not use belt wax or similar products.
This can lead to slipping of the poly-V belt.

 Swivel clamping device (1) at hexagon (2) counterclockwise, remove poly-V belt and detension clamping device (1).

 Installation: Pay attention to poly-V belt routing diagram.



Check

4

Check belt pulley profile and clamping device (1)

 Check for damage, wear and dirt; replace if necessary.

5

Check guide pulleys (4, 5)

 Check for damage, wear and dirt; replace if necessary.

6

Check poly-V belt



AP13.22-P-1352CW

 Check for damage, wear and dirt; replace if necessary.

Only perform operation steps 7 through 10 for remove/install of tensioning device (1)

7

Lock clamping device (1)

 Swivel clamping device (1) at hexagon (2) counterclockwise and lock in place using drift (3).

8

Remove screw/bolts on clamping device (1)

 Screw/bolt, poly-V belt tensioning device to timing case cover

*BA13.25-P-1001-01X

9

Remove clamping device (1) upwards

10

Slacken clamping device (1)

When replacing the clamping device (1)

 Clamp tensioning device (1) in a vise, swivel at hexagon (2) counterclockwise, pull out drift (3) and slacken tensioning device (1).

 Installation: The clamping device (1) can only be mounted in a locked condition.

Only perform operation steps 11 and 12 for removal/installation of guide pulleys (4, 5)

11

Remove screw/bolts for guide pulleys (4, 5)

 Screw/bolt, guide pulley to carrier

*BA13.25-P-1003-01X

 Screw/bolt, guide pulley to coolant pump

*BA13.25-P-1004-01X

12

Remove guide pulleys (4, 5)

13

Install in the reverse order

 Belt tensioning device

Number

Designation

Engine 276

BA13.25-P-1001-01X

Screw/bolt, poly-V belt tensioning device to timing case cover

Nm

20

 Belt tensioning device

Number

Designation

Engine 276

BA13.25-P-1003-01X

Screw/bolt, guide pulley to carrier

Nm

25

 Belt tensioning device

Number

Designation

Engine 276

BA13.25-P-1004-01X

Screw/bolt, guide pulley to coolant pump

Nm

35