Hollis Explorer User Manual - page 103
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Maintenance schedule
Item
User (U) or
Dealer (D)
Inspect/Clean
Replace/
Service
Notes
Mushroom valves
U
E
annually or sooner if
damaged
Quad seal
U
C
annually or sooner if
damaged
CO
2
sensor silica
beads
U
E (inspect)
4-6 hours / or soon-
er if the beads have
turned emerald
green
Hose end O-rings
U
E
annually or sooner if
damaged
BOV barrel O-rings
only (not 2nd stage
regulator)
U
If pre-dive failed
(leaks)
annually or sooner if
damaged
BOV 2nd stage
regulator
D
Wash at end of dive
day.
annually or sooner if
needed
Flush with fresh
water and sanitize
as required.
End cap O-rings
U
C
annually sooner if
damaged
ADV diaphragm
D
A
annually or sooner if
damaged
Oxygen/CO
2
sensor
connections
D
30
Clean at annual
service sooner if
needed
Inspect for damage.
Clean with contact
cleaner (Deoxit
Gold GN5)
Oxygen sensors
U
30
Whichever comes
first, 12 months or
the DO NO USE
AFTER DATE
Inspect for damage.
Counterlungs and
LCV port O-rings
U
Before every day of
diving.
replace annually,
sooner if damaged
LCV port mushroom
valve
D
Before every day of
diving.
Have serviced by
dealer annually,
sooner if damaged
KEY:
E = before every dive
A = annually
C = at canister change
30 = 30 hours
7.
3