A 700 Maintenance Procedure
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If the exhaust valve has been removed, it must be replaced with a
new
valve
P/N
11.250.103.
2. Insert the new exhaust valve and use the pliers to pull it from the inside of
the case. Make sure that the valve is correctly fitted, the shoulder on the
nipple should stick out of the retainer and the lip of the valve should rest
properly on the regulator case. Check the valve by pulling slightly on the lip
at several places and make sure the outer part of the valve rests on the
regulator case. Trim the top of the nipple away leaving 1mm of nipple
above the remaining shoulder.
3. Refit the exhaust tee.
4. Place the o-ring on the adjustable orifice and slightly lubricate the threads
and the o-ring.
5. Using the universal tool to screw the orifice about 3 or 4 turns into the inlet
tube.
6. In case the lever has been removed from the inlet tube, reassemble as
follows: First of all verify the symmetry of the lever when placed on a flat
surface. The four legs should touch the flat surface without any distortion. In
case of doubt, replace the lever. First enter one lever tab in the square hole
of the sleeve, then with the minimum possible distortion, glide the other
lever tab over the tube into the other square hole. Check again that there is
no distortion of the lever.
7. If the antifriction sleeve has been removed, replace it with a new one.
8. Place the 2 o-rings P/N 01.050.363 on the balanced poppet. Place a new
seat on a flat and clean surface. Hold the poppet vertically to insert the seat
into it. Push firmly into place. Lubricate the 2 o-rings, taking care to place
some grease in between the o rings.
9. Assemble the poppet with the spring and the balance chamber. Hold the
2nd stage housing with
the mouthpiece tube facing the ground.
Hold the
balance chamber, spring and poppet assembly. Position the assembled
poppet so that
the 2 tabs face the ground.
Glide the poppet assembly
inside the inlet tube making sure the poppet does not rotate. The poppet
should engage in the lever.
10. Place the o-ring P/N 01.050.126 on the small spring fine adjustment screw.
11. Assemble the fine adjustment screw inside the adjustment shaft by
unscrewing with the small screwdriver until the shoulder of the fine
adjustment screw sticks out of the rim of the adjustment shaft by 1 mm. The
inner thread and o-ring of that fine adjustment screw should not be
lubricated.
12. Place the new o-ring P/N 01.050.293 on the adjustment shaft and lubricate
both the threads and o-ring. Assemble this into the sleeve by totally
unscrewing until the stem is completely sticking out.
13. Fit the 2 o-rings P/N 01.050.160 on the Dive Switch and slightly lubricate.
