Replacing ring gear of flywheel - AR03.30-P-8312A

ENGINE 602.982 /983, 604, 605, 606 

Fig 1: Identifying Flywheel Ring Gear Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig. item, etc.	Work instructions
3,4	Install retaining lock for crankshaft/ring gear	Use M6x90 bolts otherwise threads in rear end cover will be damaged.	AR03.30-P-5000HA
5	Remove flywheel, two-mass flywheel or driven plate		AR03.30-P-8001HA
15	Ring gear	Drill off ring gear, break off with a chisel or heat it quickly and remove immediately.
		Check diameter of centering collar (a) for ring gear. Installation:  Clean contact surface for ring gear on flywheel before installing. Heat ring gear to approx. 220 °C on a hot-plate or in a heating oven and pull onto flywheel.	*BE03.30-P-1002-04A
		The ring gear is hardened. When heating, do not exceed a temperature of approx. 220 °C. Use temperature measuring chalk! A naked flame should only be used to heat the ring gear in exceptional cases. Only heat the inside of the ring gear. After replacing the ring gear, the flywheel need not be re-balanced.	*WH58.30-Z-1001-08A
	Checking
	After fitting on the ring gear, check the radial runout at the ring gear		*BE03.30-P-1001-04A

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