Service manual

FIRST TO DIVE 5
6. Turn the adjustment handwheel anti-clockwise to the
end. Hold the lever (8) down against the insert (7) and
pull on the handwheel to remove the insert assembly
from the casing (1). Remove the O-ring (4).
7. Hold the lever (8) against the insert (7) and remove the
venturi control(6). Remove the plug (25). Remove the
venturi control O-ring (24).
8.
9. Using a 4mm Allen key, unscrew and remove completely
the insert adjusting screw.
Remove the O-ring (22).
10. Remove the O-ring (4) from the insert.
11. Insert a rod or tool (116236) into the insert (threaded
side) and push out the valve seat assembly. Separate
the components of the valve seat.
12. Use your fingernail to remove the seat (18) and the
small O-ring (20) of the shuttle valve (12).
13. Unscrew the seat (9) 6 or 7 turns using a screwdriver.
Push the plastic part of tool (116236) into the insert to
push out the seat. Remove the seat O-ring (10).
14.
The spring pin (11)
should come out. If it
remains in the body push
it out using a small rod or
screw in the adjusting
screw one turn using a
4mm Allen key and try
again.