Replace the ring gear of the flywheel

AR03.30-S-8312A

Replace the ring gear of the flywheel

6.2.95

 

Removing and installing

1

Remove the flywheel (2)

AR03.30-S-8001A

2

Replace the ring gear (1)

Drill the ring gear and with the aid of a chisel break it or heat it quickly and remove it quickly.

Check the diameter of the centring neck (a) for the ring gear


If nominal value is not obtained

*BE03.30-N-1001-04A

replace the flywheel

 Assembly: Before proceeding to the bore operation, clean the support surface of the ring gear in the flywheel. Heat the ring gear with a radiator or fire and bore it on the flywheel.

 The ring gear is tempered. When heating it, temperatures over approx.
220° C must not be exceeded. Use thermal chalk!



*WH58.30-Z-1001-08A

Only in exceptional cases must the ring gear be evenly heated with the aid of a flame. In this case, only heat the inside of the ring gear.
After replacing the ring gear there is no need to re-align the flywheel.

3

Check possible warping of the ring gear



*BE03.30-N-1002-04A

4

The assembly is done in reverse order

Number

Name

Engine 111.948

Engine 111.978

BE03.30-N-1001-04A

Diameter "a" centring neck

in ring gear

mm

275.000–275.052

275.000–275.052

in flywheel

mm

275.315–275.396

275.315–275.396

BE03.30-N-1002-04A

Permissible lateral runout of
ring gear

mm

0,25

0,25

Number

Designation

WH58.30-Z-1001-08A

Temperature measuring chalk (white, thermochrome),