WÄRTSILÄ 41508, Инструкция по эксплуатации

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Cooling water thermostatic valve
19.4.3 Maintenance
Norma lly, no service is required. Too low a w a ter t empera tu re depends
on a defective thermostat, too high a temperature may depend on a
defective thermostat, although, in most cases, it depends on a dirty
cooler.
1 Remove the elements
by un screw ing t he pipe before th e valve
a nd opening th e cover.
2 Check the element
by heating it slowly in water. Check at
w hich t empera tures t he element sta rts opening a nd is fully open.
The correct va lues ca n be found in cha pter 01.; the lower va lue for
th e wa ter t emperat ure is the opening temperat ure, the higher for
th e fully open va lve.
3 Change the defective element.
Check sealings and replace,
if necessa ry.
A
From engine
B
By-pass
C
To cooler
9. Content of the element
10. Element
11. Seat
11
10
9
Fig 19-6
3219679250
34SG-9501 Cooling Water System, V-engines