Disassembly - Uwatec A700 Maintenance Manual

1. Pull second stage
hose sleeve back – to
expose LP hose swivel,
loosen the swivel using
the SCUBAPRO universal
tool.
Do not remove the finishing-nut (jam nut
avoid permanent damage. The inlet tube is silver
soldered to the case, and then pressure tested for
leaks. Nothing is gained by removing the nut; it is for
cosmetic purposes only and held using factory applied
soft thread locking agent. Submerging the A700 case
into an ultrasonic unit, using SCUBA industry-marketed
ultrasonic cleaning solutions is recommended to safely
clean case.
2. Using a TORX® T10
driver, remove the 4
front cover screws.
Remove the cover.
3. The screws are
conveniently held in
place with o-rings – to
avoid losing them.
Remove the o-rings, as
new ones are supplied in
the annual service kit.
4. Separate the purge
cover and ring. Inspect
the integrity of the
purge and ring.
The metal, stainless
steel "S" insignia is not
removable.
5. Carefully remove the
inhalation diaphragm.
Replace if it smells of
diesel or gas, is tacky or
distorted.
A700 Step-by-step maintenance procedures.
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3
6. Hold the diaphragm to
light and stretch it from 4
points to check for
punctures. Reposition
and repeat to be sure
there are no punctures
and that the diaphragm is
imperfection free.
7. Inspect the smooth
operating side of the disc
for signs of wear. Replace
as necessary.
Dive switch
Min / Max
8. Next, remove the "dive
switch" assembly. First
remove the safety "C"
clip by placing a flat
blade screw driver in the
negative detent (or the
bottom side of the wave)
of the "C"-clip.
9. Then slide your finger
or thumb to provide
support and pry, via light
leverage.
C-clip
10. Pull the complete
"dive switch" assembly
nd
free from the 2 . stage
case and remove the 2 o-
rings, using a brass pick.