Replace ring gear on flywheel

AR03.30-D-8312AD

Replace ring gear on flywheel

10.5.12



Remove

1

Remove flywheel (2)

Transmission 712.621

Transmission 712.613, 715.051

AR03.30-D-8002AD

 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 flywheel (2) using a suitable drift

 Underlay flywheel (2).

3

Measure flywheel diameter for mounting the ring gear (B) on the flywheel (2)

 Replace flywheel (2) if the value is outside the tolerance.

Flywheel diameter

*BE03.30-N-1002-03B



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 flywheel (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 flywheel (2).

6

Bore out core bore holes for thread (M8) (arrow) in the ring gear (1)

 Use a 6.8 mm diameter drill bit.

Adopt drilling depth from the removed ring gear (1).

7

Install flywheel (2)

Transmission 712.621

Transmission 712.613, 715.051

AR03.30-D-8002AD

Number

Designation

Engine
900.9, 904.9
with a 403 dia. flywheel and a 362 dia. clutch

BE03.30-N-1002-03B

Flywheel dia. for mounting starter ring gear (B)

mm

360.435 to 360.575

Number

Designation

Engine
900.9, 904.9
with a 403 mm dia. flywheel and a 362 mm dia. clutch

BE03.30-N-1005-04B

Starter ring gear - installation temperature

°C

250 to 280