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ManualsBrandsPOSEIDON ManualsScuba diving finsMKVI
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Poseidon MKVI User Manual
Chapter 1
Page 34
The importance of ensuring that all exposed o-rings and their respective sealing surfaces are
smooth and clean cannot be overstated. Careless treatment of these o-rings could cause an
an entry path for water into the system, leading to an aborted dive (or worse). A slow leak may
represent a minor inconvenience, but may eventually lead to more severe problems later. A fast
leak could lead to an immediate requirement for an open-circuit abort to the surface. O-rings
and their sealing surfaces are at the heart of reliable operation of the Poseidon MKVI. Pay
attention to this detail when you assemble the rig.
Figure 1-60. Insert the CO
2
absorbent stack.
Insert the assembled CO
2
absorbent stack into the cartridge housing (see Figure 1-60). Take
care during the nal stage of assembly to align the four hand nuts with their respective threaded
connectors on the extruded cartridge housing. There is only one possible orientation in which
all four screws will align with those on the housing. Be sure when you insert the end cap into
the cartridge that the radial o-rings do not extrude from their circular grooves (see Figure 1-61).
Once the end cap is pushed in and both radial o-rings are no longer visible, tighten the four
hand nuts alternately, one at a time, so they seat the cap on evenly. Only tighten the screws
until the end cap edge is approximately 1 to 2 mm away from the bottom tube edge of the
extruded cartridge housing (see Figure 1-62). This is a normal gap because the hand nuts are
pushing the entire assembly against the top face ring in order to secure the seal of the cartridge
stack to the interior top sealing surface of the cartridge housing.
Figure 1-61. Final insertion of end cap into
cartridhe housing.
Figure 1-62. Tighten the four screws.
Ensure that o-rings do not
extrude from their grooves during
assembly
Compression gap is normally 1 to 2
mm wide after successfull assembly
IMPORTANT:
In between dives vent the system by removing the e-module from
the canister housing top.