Remove/install viscous fan clutch · ar2040d5660d · Mercedes-Benz WIS

AR20.40-D-5660D

Remove/install viscous fan clutch

8.12.09

ENGINES 904.904 /961 in MODEL 670

ENGINES 904.908 /914 /923 /936 /955 /964 in MODEL 668, 670

D20.40-0001-06

1 Fan wheel

2 Screw

3 Viscous fan clutch

4 Hexagon socket head screw

 	Remove/install
1	Remove poly-V belt		AR13.22-D-1202D
2	Unscrew bolts (2) and remove viscous fan clutch (3) and fan wheel (1) down and out	 Push fan shroud to the side, if necessary.  Do not lay viscous fan clutch (3) down in horizontal position, to avoid damage to viscous fan clutch (3).  Installation: Inspect belt pulley of coolant pump for damage and concentric running, replace if necessary.
			*BA20.40-N-1004-01G
3	Take fan wheel (1) off the viscous fan clutch (3)		*BA20.40-N-1002-01G
4	Install in the reverse order

 Fan, fan clutch

Number	Designation		Engine 904.9 in model 668, 670


BA20.40-N-1002-01G	Fan on fan clutch	Nm	10
BA20.40-N-1004-01G	Bolt, fan clutch to coolant pump	Nm	25