Valve Seat Ring
Repair / Checking
A5.05. 01.08.02.00
M20
en / 16.09.1997 IB001438 2/5
01
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Sequence of operations:
1. Check of valve condition
The hardness of the valve seats is designed in such a manner that a certain adaptability is
present with regard to the valve face. Carbon deposits are therefore a normal indication
and not hazardous if good cooling is present (Fig. 3, 4 and 5).
Fig. 2
Fig. 3
Fig. 4
Fig. 5