Aqua Lung SECOND STAGE Service Manual download pdf (Page 7)

FIRST TO DIVE 7

11. Maintain the lever in the upper position. Push slightly the

assembly outside the casing, and screw the valve

spindle screw until its stop.

12. Line up the spins of the screw with the seating of the

casing by unscrewing the valve spindle screw. Looking

at the case as the pictures, the two upper spins and the

lever must be on both sides of a vertical plan.

13. Re-fit completely the assembly into the casing.

14. Fit a new lubricated O-ring (124706) on the valve

spindle, then screw and tight the screw (127818) to 0.3

m.kg.

15. Fit a new lubricated O-ring (444243) on the

seat(AP2033). Fit the seat (threaded part first) into the

insert and push it fully home using a screwdriver.

16. With the flat side of the casing at eye level, screw in the

adjusting knob until the lever is about 4mm below the

level of the casing edge. Now unscrew it until the lever

just shows above the edge of the casing. Press on the

lever and check that it returns to the high position (the

sign that the shuttle valve is well positioned).

17. Fit new lubricated O-rings on the hose nipple and on the

thread.

18. Ajustement du Levier (129178).

Attach the adjusting connector (122041) on the

adjustment tool (122046). Connect a MP hose to the

tool and then fit the assembly to a Mikron 1st stage that

has its MP set to 9.5 bar. Put the regulator under

pressure.

Slide the tool (129001) across the top of the casing.

With the tool in MINI position

- the 2

stage MUST NOT leak

- the tool MUST NOT press on the lever

- the tool MUST flush the lever

Screw the seat in or out to adjust the setting.

The tool (129001) in its MAXI position

MUST NOT BE USED TO ADJUST THE

MIKRON SECOND STAGE

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Aqua Lung SECOND STAGE Service Manual Page 7