Remove/install ring gear for ring gear carrier

AR03.30-W-8314J

29.7.11

ENGINES 900.9 in MODEL 970, 972, 975, 976

ENGINES 902.9 in MODEL 950.5 /6, 952.5 /6, 957

ENGINES 902.9 in MODEL 375.1, 970, 972, 975, 976

ENGINES 925.9 in MODEL 970, 972

ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 957

W03.30-1056-05

1 Ring gear

2 Ring gear carrier

A Ring gear carrier diameter for mounting ring gear

	Remove
1	Remove ring gear carrier (2)		AR03.30-W-8005J
 Danger!	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
2	Use a welding torch to rapidly heat up ring gear (1) and press it off ring gear carrier (2) using a suitable drift	 Underlay ring gear carrier (2).
3	Measure ring gear carrier diameter for mounting the ring gear (B) on the flywheel (2)	 Replace ring gear carrier (2) if the value is outside the tolerance.	*BE03.30-N-1002-05B
	Install
 Danger!	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
4	Heat new ring gear (1)	 The correct pulling on temperature is reached once ring gear (1) has a bright yellow annealing color.
		Starter ring gear - installation temperature	*BE03.30-N-1005-04B
5	Lay ring gear (1) onto ring gear carrier (2) up to the contact surface	 Allow ring gear (1) to cool for at least 2 minutes and then set back using a brass drift. The ring gear (1) must lie all around the shoulder of the ring gear carrier (2).
6	Install ring gear carrier (2)		AR03.30-W-8005J

Check values for starter ring gear

Number	Designation		Engine 900.9, 902.9, 906.9, 925.9, 926.9 with a 443 dia. ring gear carrier and transmission 723.6


BE03.30-N-1005-04B	Starter ring gear - installation temperature	°C	250 to 280

Check values for ring gear carrier

Number	Designation		Engine 900.9, 902.9, 925.9, 926.9 with a 443 dia. ring gear carrier and transmission 723.6


BE03.30-N-1002-05B	Ring gear carrier dia. for mounting the starter ring gear	mm	392.435 to 392.575