Vibration Damper
Maintenance / Disassembly and reassembly
A5.05. 12.04.01.03
30000
M20
en / 06.06.2000 IB022217 1/2
12
Ĺ
See also:
Spare parts list: B1.05.12.1.6347
Time requirement: 0 Pers./ 0,00 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Maintenance:
every 30,000 h
Auxiliary material:
Molykote paste “G-Rapid Plus” *
Silicone sealing compound “Dirco-Grau” *
* or a product of equal standard
Note:
When replacing (possible by way of exchange) and/or fitting dampers coat fastening
screws (Fig. 1/1), threads and screw head rests with Molykote paste “G-Rapid Plus” and
tighten with a pre-torque of
M = 100 Nm + 90° angle of rotation.
The vibration damper is connected to the lube oil system of the engine.
Free passage of oil bores (2) must be ensured for the proper functioning of the damper!
If running of the engine becomes unbalanced at certain speeds, the cause can be a defecti-
ve damper. In order to prevent further damage, avoid critical speed range and determine
defect as soon as possible by torsional vibration measurement.
Sequence of operations:
1. Disassmbly
1.1 Remove pump carrier plate (3).
1.2 Mark two-piece stop disk (4), loosen screws (5), remove stop disk. If necessary, push off
with screw M12 in thread (6) (observe marking).
1.3 Mark position of flywheel rim (7) to carrier (8).
1.4 Pull out spring assemblies (9) with a wire hook.
1.4.1 Inspect stop surfaces of the spring assemblies for wear.
Smooth slight burr with soft emery paper. Replace spring assembly (9) in case of deeper
grooves since there is a danger of the spring leaf ends snap getting caught in the grooves
and breaking during further operation.
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