Remove/install basic belt drive poly-V belt

AR13.21-G-2000N

Remove/install basic belt drive poly-V belt

13.06.2018

Engine

470.9, 471.9 in model 800.110/112

Modification notes

12.06.2018

Work procedure completely revised.

1

Fan

6

Refrigerant compressor belt pulley (with air conditioning)

11

Alternator belt pulley

2

Radiator shroud

7

Guide pulley

12

Tensioning device

3

Charge air hose (red)

8

Coolant pump belt pulley

13

Single tensioning device (only for engine with 3-belt drive)

4

Poly-V belt (basic belt drive)

9

Guide pulley

5

Poly-V belt (rear belt drive)

10

Belt pulley/vibration damper

1

Fan

1.1

Fan clutch

2

Radiator shroud

 Danger

Safety information on working on air compressor, belt drives

Depending on the activity performed at the vehicle, the corresponding safety information is to be noted.

AS13.00-Z-0001-01A

 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

 

Remove/install

1.1

Remove air intake hose.

with air intake at front

 Installation: Check clamps for damage; replace if necessary.

 Clamp, air intake hose to turbocharger

*BA09.20-N-1001-01E

1.2

Remove charge air hose (red) (3).

without air intake at front

 Installation: Check clamps for damage; replace if necessary.

 Clamp, charge air hose to charge air pipe and charge air cooler

*BA09.41-N-1010-01P

2

Remove single tensioning device (13).

Only for engine with 3-belt drive.

AR13.25-G-4010N

3

Remove fan (1) from fan clutch (1.1).

AR20.40-G-5614N

4

Position fan (1) in the radiator shroud (2).

5

Slacken poly-V-belts (4, 5) and remove poly-V-belt (4).

AR13.22-G-3902-05N



Damage profiles for a poly-V belt

AP13.22-D-1351-01A

Belt drive routing diagram

AR13.20-G-1000-01N

 Installation: Check poly-V-belts (4, 5) for damage and wear; replace if necessary.

6

Install in the reverse order.

 Intake manifold

Number

Designation

Engine 470.9, 471.9, 473.9, 934.9, 936.9

BA09.20-N-1001-01E

Clamp, air intake hose to turbocharger

Nm

6

 Charge air pipe/charge air cooling

Number

Designation

Engine 470.9

Engine 471.9

BA09.41-N-1010-01P

Clamp, charge air hose to charge air pipe and charge air cooler

Nm

7,5

7,5