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COPYRIGHT NOTICE
This manual is copyrighted, all rights reserved. It may not,
in whole or in part, be copied, photocopied, reproduced,
translated, or reduced to any electronic medium or machine
readable form without prior consent in writing from Aqua Lung
America. It may not be distributed through the internet or com-
puter bulletin board systems without prior consent in writing
from Aqua Lung America.
©2002 Aqua Lung America, Inc.
Legend LX Second-Stage Service Manual
INTRODUCTION
This manual provides factory prescribed procedures for
the correct service and repair of the Aqua Lung Legend LX
second-stage regulator. It is not intended to be used as an
instructional manual for untrained personnel. The procedures
outlined within this manual are to be performed only by per-
sonnel who have received factory authorized training through
an Aqua Lung Service & Repair Seminar. If you do not
completely understand all of the procedures outlined in this
manual, contact Aqua Lung to speak directly with a Technical
Advisor before proceeding any further.
WARNINGS, CAUTIONS, & NOTES
Pay special attention to information provided in warnings,
cautions, and notes that are accompanied by one of these
symbols:
WARNINGS
indicate a procedure or situation
that may result in serious injury or death if
instructions are not followed correctly.
CAUTIONS
indicate any situation or tech-
nique that will result in potential damage to
the product, or render the product unsafe if
instructions are not followed correctly.
F
NOTES
are used to emphasize important points,
tips, and reminders.
SCHEDULED SERVICE
If the regulator is subjected to less than 50 dives per year, it is
permissible to overhaul it every other year with an inspection
procedure being performed on the "off" years. For example:
Year #1: Inspection
Year #2: Overhaul
Year #3: Inspection
Year #4: Overhaul
and so on.
Both Inspections and Overhauls need to be documented in
the Annual Service & Inspection Record in the back of the
Owner's Manual to keep the Limited Lifetime Warranty in ef-
fect.
If a regulator is subjected to more than 50 dives per year, it
should receive the complete overhaul.
An Official Inspection consists of:
1.
A pressurized immersion test of the entire unit to check
for air leakage.
2.
Checking for stable intermediate pressure that is within
the acceptable range.
3.
Checking for opening effort that is within the acceptable
range.
4.
Checking for smooth operation of the control knob and
venturi switch.
5.
A visual inspection of the filter for debris or discoloration.
6.
A visual inspection of the exhaust valve to see that it
is in good shape and that it's resting against a clean
surface.
7.
A visual inspection of the mouthpiece looking for tears
or holes.
8.
Pulling back hose protectors and checking that the
hoses are secure in the hose crimps.
If a regulator fails item #1,2,3 or 4 the entire regulator should
be overhauled. If a regulator fails 4,5,6 or 7 it will be up to
the technician's discretion whether or not a full overhaul is
required.
GENERAL GUIDELINES
1.
In order to correctly perform the procedures outlined in
this manual, it is important to follow each step exactly
in the order given. Read over the entire manual to
become familiar with all procedures before attempting to
disassemble the first-stage, and to learn which specialty
tools and replacement parts will be required. Keep the
manual open beside you for reference while performing
each procedure. Do not rely on memory.
2.
All service and repair should be carried out in a work
area specifically set up and equipped for the task.
Adequate lighting, cleanliness, and easy access to all
required tools are essential for an efficient repair facility.
3.
As the regulator is disassembled, reusable components
should be segregated and not allowed to intermix with
nonreusable parts or parts from other units. Delicate
parts, including inlet fittings and crowns which contain
critical sealing surfaces, must be protected and isolated
from other parts to prevent damage during the cleaning
procedure.
4.
Use only genuine Aqua Lung parts provided in the Leg-
end first-stage overhaul parts kit (PN 900112). DO NOT
attempt to substitute an Aqua Lung part with another
manufacturer's, regardless of any similarity in shape or
size.
5.
Do not attempt to reuse mandatory replacement parts
under any circumstances, regardless of the amount of
use the product has received since it was manufactured
or last serviced.
6.
When reassembling, it is important to follow every
torque specification prescribed in this manual, using a
calibrated torque wrench. Most parts are made of either
marine brass or plastic, and can be permanently dam-
aged by undue stress.
3
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