Aqua Lung MISTRAL SECOND STAGE, Техническое руководство по обслуживанию

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1. While holding the inlet fi tting (19) of the second stage
secure with a ¾" (19mm) open end wrench, apply 11/16"
(17mm) open-end wrench to the female fi tting of the LP hose.
Turn the fi tting counter-clockwise to remove the hose from the
second stage. Remove the o-rings from the hose and discard.
2. Slide back the hose protectors and check that the crimps
look good and that the hose is not pulling out. If the hose is
torn or pulling out of the crimps, it should be replaced.
3b. If the corrugated hoses are attached by clamping bands,
use a small blade screwdriver and loosen the bands.
3a. To remove the corrugated hoses from the box you will
need to carefully cut the panduit clamps from the hoses.
4. Remove the corrugated hoses from the box.
6. Remove the exhalation box (2).
7 Lift up the exhaust valve (3) and check that the surface is
clean and unscratched. It should be fl exible and have a clean
edge. If it is in good condition it is not necessary to replace it.
If there are any signs of deterioration it should be replaced.
DISASSEMBLY PROCEDURES
NOTE: Before performing any disassembly, refer
to the exploded parts drawing, which references all
mandatory replacement parts. These parts should
be replaced with new, and must not be reused
under any circumstances – regardless of the age
of the regulator or how much use it has received
since it was last serviced.
CAUTION: Use only a plastic or brass o-ring
removal tool (p/n 944022) when removing o-rings
to prevent damage to the sealing surface. Even
a small scratch across an o-ring sealing surface
could result in leakage. Once an o-ring sealing
surface has been damaged, the part must be
replaced with new. DO NOT use a dental pick,
or any other steel instrument.
5. Using a 3mm Allen wrench, remove the 4 screws (1) and
recover the 4 locknuts (7) at the back of the inhalation
box (6)