Hollis Explorer User Manual - page 23
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SENSOR MODULE - DISASSEMBLY/ASSEMBLY – OXYGEN SENSOR
MAINTENANCE/TESTING
• Remove the Sensor Module from the Canister (Fig. 2.17).
• Remove all 3 oxygen sensors (Fig. 2.18).
• Inspect the Thermal Profile Monitor (TPM) body and O-ring for damage,
and clean the TPM with warm soapy water.
NEVER expose the sensors to
water.
• Clean the sensor jack connectors with a soft cloth (look for damage and
corrosion).
!
DANGER: After sensor replacement you must ensure the unit is
calibrated by completing a full pre-dive sequence.
!
DANGER: It is important that oxygen sensors are maintained and
cared for. Avoid excessive moisture. Some moisture will always
form during a dive but if the rebreather has been flooded the sen-
sors MUST be replaced. DO NOT touch the white sensor face with
anything in an attempt to dry the sensor.
CANISTER END CAP - DISASSEMBLY/ASSEMBLY
• Remove the Right Hand end cap by twisting the lock ring counter-clock
wise ½ turn.
• Inspect and clean the O-ring and sealing surfaces. Lubricate and refit the
end cap sealing O-rings (Fig. 2.19, A).
• Refit the end cap by aligning the locking ring tab with the notch in the
Explorer case on the left side, while pushing the end cap into the canister.
Then turn the lock ring clockwise by 180 degrees to the opposite notch in
the Explorer case.
!
NOTE: The Diver's Right Side End Cap contains the Go/No Go
Device. This is the green stem in the picture (Fig. 2.19, B) sur-
rounded by a spring.
!
DANGER: If you do not insert an absorbent scrubber pack, the de-
vice greatly restricts breathing on the loop. This is to force you off
the breathing loop until the issue is remedied. You must not dive
without a CO
2
scrubber pack fitted.
Fig. 2.19
B
A
Fig. 2.17
Fig. 2.18
2.
3