Valve Seat Ring
Repair / Checking
A5.05. 01.08.02.00
M20
en / 31.05.2010 IB001438 2/5
01
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 pre-
sent with regard to the valve face. Carbon deposits are therefore a normal indication and not ha-
zardous if good cooling is present (Fig. 3, 4 and 5).