Oceanus
Page 22 2nd Edition, Rev. 0 Chg. 14
3.4.4 Changing the 1st Stage Valves
1. Loosen the two cap nuts from tube connectors and remove after-cooler.
2. Remove four valve head screws (5) from valve head (1). Remove valve head.
3. Remove gasket (2) and plate valve (3).
4. When reinstalling the plate valve, check that the mark āSā is facing upwards and towards the inlet
filter side. The cross bar of the gasket (2) provides a seal between the inlet and pressure opening of
the plate valve
.
Figure 3-6 1st Stage Valve Head
1. Valve Head
2. Gasket
3. Plate Valve
4. O-ring
5. Valve Head Screw
4
3
5
1
2