Remove/Install Retaining Lock For Crankshaft - AR03.30-P-5001MSA

Engine 256.9 in model 213, 238, 257, 290 

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove fan unit.		AR20.40-P-5050MSA
2	Mount protective plate on cooler.		WF58.50-P-0110-04A
			WF58.50-P-0110-04A
3	Rotate engine in direction of engine rotation to cylinder 1 TDC.	The TDC marking on the vibration damper (1) must align with the mark on the crankcase (5).
		Counterholder	Fig 2
4	Remove the vibration damper (1).		AR03.30-P-1800MSA
5	Attach the retaining lock (2) to the crankshaft and tighten the bolt (3).	Adjustment tool	Fig 1
6	Insert the locating pin (4) as far as it will go into the opening on the crankcase (5).	If necessary, rotate engine at retaining lock (2) in direction of engine rotation.
		Adjustment tool	Fig 1
7	Install in the reverse order.

Fig 1: Identifying Adjustment Tool (654 589 00 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Counterholder (654 589 00 40 00)

Courtesy of MERCEDES-BENZ USA