Remove/install central clutch operator - AR25.20-P-0180MCU

MODEL 451.3 /4 with ENGINE 132.910 with TRANSMISSION 717.4 

Fig 1: Identifying Central Clutch Operator Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
1	Remove transmission		AR26.10-P-0020MCU
2	Remove bolts (3)		*BA25.20-P-1001-01C
3	Unhook spring (4) on release lever (2)	Do not overstretch spring (4) otherwise the correct seat of the release lever (2) can no longer be guaranteed. Installation:  Check spring (4), replace if necessary. Pay attention to correct seat of spring (4).
4	Remove central clutch release bearing (1) with release lever (2) and guide sleeve (5) from transmission (6)
5	Pull guide sleeve (5) out of central clutch release bearing (1)	Rotate guide sleeve (5) such that the catches on the guide sleeve (5) fit into the cutouts on the central clutch release bearing (1).
6	Carefully push catch hooks (7) together and remove central clutch release bearing (1) from release lever (2)	Clean and grease bearing points of release lever (2). Installation:  Check central clutch release bearing (1) for noise, rough running, leakage and wear and replace central clutch release bearing (1) if necessary.
		Transmission shaft grease	*BR00.45-Z-1062-06A
7	Install in the reverse order