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Introduction
This manual provides factory prescribed procedures
for the correct service and repair of the Aqua Lung
product described in this manual. 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 personnel 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.
It is recommended that the BC be rinsed in fresh
water after each use, and should be serviced on
an annual basis.
However, if at all unsure about the correct functioning of
the BC, then it must be officially inspected immediately.
An Official Inspection Consists of:
1. Testing instructions see Pre-Dive Inspection.
2. If the BC fails any of the Pre-Dive Inspection steps
1-7, it should be serviced by an Aqua Lung trained
service technician.
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 product in this manual, 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 valve/inflator is disassembled, reusable
components should be segregated and not allowed
to intermix with non-reusable parts or parts from
other units. Delicate parts, 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 overhaul parts kit for this product. 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 damaged by excessive
stress.
General Conventions
Unless otherwise instructed, the following terminology
and techniques are assumed:
1. When instructed to remove, unscrew, or loosen
a threaded part, turn the part counter-clockwise.
2. When instructed to install, screw, or tighten a
threaded part, turn the part clockwise.
3. When instructed to "OPEN" the handwheel, turn
the handwheel counter-clockwise. When instructed to
"CLOSE" the handwheel, turn the handwheel clockwise.
4. When instructed to remove an o-ring, use the pinch
method (see illustration below) if possible, or use brass
or plastic o-ring removal tool. Avoid using hardened
steel picks, as they may damage the o-ring sealing
surface. All o-rings that are removed are discarded
and replaced with brand new o-rings.
Pinch Method
Press upwards on sides of o-ring to
create a protrusion. Grab o-ring or
insert o-ring tool at protrusion.
5
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