Valve Cones
Repair / Checking
A5.05. 01.08.01.00
M20
en / 16.09.1997 IB001351 5/5
01
Ĺ
4.3 When the contact reflection is poor, the
valve must not be reground anymore,
however, both sealing faces are to be
refinished on a machine.
4.4 Ensure, that the components (valve
cone and seat ring) refaced to one
another remain together.
5. Final inspection
5.1 Ensure that the the refinishing limit
dimensions are maintained.
5.2 Thoroughly clean valve cone/seat and
check sealing faces for cracks with an
illuminated magnifying glass
(magnification 8 times) in the steel
plating and in the adjacent area.
a
Fig. 6
b
a
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