Remove/install electromagnetic fan clutch

AR20.40-W-5616B

11.2.09

ENGINES 457.9 in MODEL 374, 375, 940, 942, 943, 944, 958 with CODE (MZ5) Electromagnetic fan drive (Linnig clutch)

W20.40-1060-09

1 Radiator

2 Fan

3 Poly-V belt for fan

4 Tensioning device

9 Electromagnetic fan clutch

10 Screw

11 Screw

5 Poly-V belt for alternator

6 Electrical connector

7 Electrical line

8 Bracket

Modification notes

22.1.09

Dimensions of assembly pins changed.

Step 5

 	Remove/install
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Remove fan (2)		AR20.40-W-5614EA
2	Swivel tensioner pulley of clamping device (4) downwards; block with a suitable pin if necessary and remove fan poly-V belt (3) from the tensioner pulley of the clamping device (4)	 Installation: Inspect condition of poly-V belt of fan (3), replace if necessary.
		Observe poly-V-belt routing plan.	AR13.22-W-3902-02C
	Damage profiles for a poly-V belt		AP13.22-D-1351-01A
3	Swivel tensioner pulley for clamping device (4) downwards; block with a suitable pin if necessary and remove alternator poly-V belt (5) from alternator belt pulley	 Installation: Inspect condition of poly-V belt of alternator (5), replace if necessary.
		Observe poly-V-belt routing plan.	AR13.22-W-3902-02C
	Damage profiles for a poly-V belt		AP13.22-D-1351-01A
4	Disconnect electrical line (7) at electrical connector (6)
5	Remove bracket (8) for fan drive	 Installation: Screw fabricated assembly pin into the lower bore in the camshaft sprocket cover. Pay attention to different bolt lengths (10, 11).
			*BA20.40-N-1004-01L
	Assembly pins for installation of oil filter housing		WF58.50-W-1820-01A
6	Remove electromagnetic fan clutch (9) with bracket (8) upwards
7	Install in the reverse order

 Fan, fan clutch

Number	Designation		Engine 457.9 with code MZ5


BA20.40-N-1004-01L	Fan drive holder on camshaft sprocket/cylinder crankcase cover	Nm	60