Doc. 12-4091 - r01 (9/12/12)
PG-22
SERVICE
GUIDE
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©
2002 DESIGN
(
2012)
8. Grasp the base of the
OVER-PRESSURE VALVE
(OPV) (40)
and
COUNTERLUNG (30)
material around
the base. Then turn the
OVER-PRESSURE VALVE (40)
counterclockwise until it is free of the
COUNTERLUNG
(30)
, as shown
(Fig. 12)
. A SI-TECH
®
attachment tool
may be needed if overly tight. Inspect the
OPV (40)
,
mating surfaces, and
O-RING (41)
for proper function
and damage. The
OPV (40)
should rotate freely with a
slight ratcheting function. If damage is found with any of
these components, replace the appropriate parts.
NOTE: A thorough cleaning should rectify any
binding in the rotation of the OPV (40). At the
time of this writing Hollis is using a SI-TECH®
valve identical to those commonly used on Dry-
suits. If the valve needs further service besides
cleaning, refer to service procedures and/or
recommendations from SI-TECH®. You may also
simply replace the valve with a new one available
from Hollis if you so choose.
9. Visually inspect the
BREATHING HOSES (13, 21,
31, 45)
,
HOSE CLAMPS (17, 26, 32, 46)
, and
HOSE
CLAMP COVERS (18, 27, 33, 47)
for wear and solid
connection to fittings. Be sure to stretch and flex the
BREATHING HOSES (17, 26, 32, 46)
looking for cracks,
holes, abrasions, and proper pliability. Replace as
needed. To disassemble hose connection pull back the
SILICONE HOSE CLAMP COVER (18, 27, 33, 47) (Fig.
13)
. Then using the Oetiker clamp pliers disengage the
HOSE CLAMP'S (17,26,32,47) (Fig. 14)
. Now pull the
HOSE (13, 21, 31, 45)
off of the Connection Fitting.
Fig. 12
Fig. 13
Fig. 14