Check flywheel, rework if necessary

AR03.30-G-8022CH

Check flywheel, rework if necessary

05.09.2018

Engine

457.9, 458.9 in model 000.001

1

Flywheel

D

Flywheel dia. for clutch mounting

E

Flywheel minimum width between the friction surface and mounting flange



Remove

1

Remove flywheel (1).

AR03.30-G-8002CH



Check

2

Clean flywheel (1).

3

Check the coupling friction surface of the flywheel (1) for scorch marks, score marks, and cracks.

 In the event of scorch marks or score marks that are not easily visible, the flywheel (1) can be reworked.

If clearly visible and perceptible score marks or cracks can be detected,



replace flywheel (1).

4

Measure minimum width of the flywheel between the coupling friction surface and the mounting flange (E) on the flywheel (1).

Flywheel

*BE03.30-N-1003-03J

Flywheel dia.

*BE03.30-N-1001-03J

Clutch friction surface

*BE03.30-N-1002-03J

If the minimum width of the flywheel between the coupling friction surface and the mounting flange (E) is not reached,



replace flywheel (1).

Reworking

5

Rework flywheel (1).

 After refacing, there must not be any shrink holes or chatter marks present on the clutch friction surface.

Flywheel

*BE03.30-N-1003-03J

Flywheel dia.

*BE03.30-N-1001-03J

Clutch friction surface

*BE03.30-N-1002-03J



Install

6

Install flywheel (1).

AR03.30-G-8002CH

Check values for flywheel

Number

Designation

Engine 457.9, 458.9

BE03.30-N-1001-03J

Flywheel dia.

Outer (A)

mm

486,600...487,400

for mounting starter ring gear (B)

Default

mm

432,490...432,645

Deviation 0.5

mm

431,990...432,145

Check values for flywheel

Number

Designation

Engine 457.9, 458.9

BE03.30-N-1002-03J

Clutch friction surface

Peak-to-valley height (Rz)

μm

16

Flatness

mm

0,03

Check values for flywheel

Number

Designation

Engine 457.9, 458.9

BE03.30-N-1003-03J

Flywheel

Overall width (F)

mm

70

Minimum width between friction surface and mounting flange for repairs (E)

mm

60