AGCO Power 49 - Flywheel; Changing Starter Ring Gear on Flywheel; Fitting Flywheel

3.8 Flywheel
3.8.1 Changing starter ring gear on flywheel
If the ring gear is worn, replace it with a new one.
The ring gear cannot be turned around because its
teeth are chamfered and hardened on the starter
motor side.
Fig. 61
Procedure
1.
Remove the old starter ring by tapping it at various points with a drift. Clean the flywheel contact face
with a steel-wire brush.
2.
Warm the ring gear to a temperature of 150 - 200°C. Fit the ring gear with the inner diameter
chamfering turned against the flywheel and the teeth chamfering against the starter motor.
3.
Allow the ring gear to cool freely without using any coolant.
3.8.2 Fitting flywheel
Procedure
1.
Clean the contact surfaces on the crankshaft
rear flange and on the flywheel.
2.
Fasten the flywheel to the crankshaft rear
end.
Suitable studs (2 pcs) can be used as guide
pins and screwed into the flywheel fixing bolt
holes.
NOTE: The flywheel fixing bolt holes are
asymmetrical in the 84 and 98 engines.
3.
Tighten the flywheel retaining screws evenly
to the correct torque value.
Fig. 62
3. Maintenance
3-38 4th Generation Engines
8370 79492