OM131
81
P1939-OM-131 R11
Chapter 4
4.5.2.2 Inhale / exhale hose penetrators
1.
Release the wing nut and remove the thermal regenerator (Fig 3.7, Item 1, page 48).
2.
Peel off the scrubber canister gasket (Fig 3.7, Item 2) and carefully remove the RH / LH
regenerator housing (Fig 3.7, Item 3 / 4) as required.
3.
Using the duct spanner (Divex Part No. M2921B) engaged in the upper penetrator slots and
the locknut spanner (Divex Part No. M2920) from the Tool and Test Kit, undo the locknut (Fig
4.11, Item 2) and remove.
4.
Push down on the upper penetrator to break the hold of the silicone sealant and remove.
5.
Clean off the old silicone and wipe the contact areas with silicone primer (Divex Part No.
SM021).
6.
Fit a new O-ring (Fig 4.11, Item 3) to the upper penetrator (Fig 4.11, Item 1) and apply a bead
of silicone sealant (Divex Part No. SM006) around the sealing face of the penetrator.
7.
Re-install the penetrator into the scrubber housing and refit the locknut (Fig 4.11, Item 2)
using the tools described in Step 3 above, and with a moistened finger carefully wipe the
excess silicone sealant smooth before it sets.
8.
Carefully clean off the old silicone sealant from the regenerator housing, gasket sealing area
and the regenerator housing sealing area, and wipe all these areas with silicone primer
(Divex Part No. SM021).
9.
Re-install the regenerator housing with a generous bead of silicone sealant (Divex Part No.
SM006) ensuring a gas tight seal.
10.
Inspect the sealing area for the scrubber canister gasket (Fig 3.9, Item 2). Check that all
traces of silicone sealant have been removed.
N
OTE
Check the orientation of the gasket - the narrowest end goes in first.
11.
Prime the gasket and the sealing area with silicone primer (Divex Part No. SM021) and apply
a bead of silicone sealant (Divex Part No. SM006) to the face of the gasket. Insert the gasket
carefully, ensuring that the gasket is sitting flat and that the rectangular cut-out aligns with the
inner edges of the regenerator housing.
12.
While the sealant is still wet insert a scrubber canister and engage the canister lift mechanism
to squeeze the gasket into place. Allow the sealant at least eight (8) hours to cure before
releasing the canister lift mechanism.
13.
After the sealant has cured for at least twelve (12) hours, check the regenerator housing
sealing by pressure testing to 68 mbar (1 psi) using a dummy blank canister.
N
OTE
The SLS System should not be dived for a period of twenty four (24) hours after the silicone sealant
has been applied, to allow it to fully cure.
Summary of Contents for Divex SLS Mk IV
Page 2: ...Intentionally Blank...
Page 4: ...ii OM131 Approval Sheet P1939 OM 131 R11 Intentionally Blank...
Page 6: ...iv OM131 Preface P1939 OM 131 R11 Intentionally Blank...
Page 8: ...vi OM131 List of Abbreviations P1939 OM 131 R11 Intentionally Blank...
Page 10: ...viii OM131 Warnings P1939 OM 131 R11 Intentionally Blank...
Page 12: ...x OM131 Table of Contents P1939 OM 131 R11 Intentionally Blank...
Page 15: ...OM131 3 P1939 OM 131 R11 Chapter 1 Fig 1 1 SLS System Mk IV...
Page 16: ...4 OM131 Chapter 1 P1939 OM 131 R11 Fig 1 2 SLS system layout...
Page 32: ...20 OM131 Chapter 2 P1939 OM 131 R11 Fig 2 4 Two stage regulator Fig 2 5 Spool valve...
Page 42: ...30 OM131 Chapter 2 P1939 OM 131 R11 Intentionally Blank...
Page 53: ...OM131 41 P1939 OM 131 R11 Chapter 3 Fig 3 3 Hose Lanyards...
Page 54: ...42 OM131 Chapter 3 P1939 OM 131 R11 Fig 3 4 SLS System Mk IV Rear View...
Page 55: ...OM131 43 P1939 OM 131 R11 Chapter 3 Fig 3 5 SLS System Mk IV Front View...
Page 64: ...52 OM131 Chapter 3 P1939 OM 131 R11 Intentionally Blank...
Page 82: ...70 OM131 Chapter 4 P1939 OM 131 R11 Fig 4 7 Annual Maintenance Two Stage Regulator...
Page 86: ...74 OM131 Chapter 4 P1939 OM 131 R11 Fig 4 8 Annual Maintenance Single Stage Regulator...
Page 109: ...OM131 97 P1939 OM 131 R11 Chapter 5 Fig 5 2 Backpack Assembly Drawing P1939229S1...
Page 111: ...OM131 99 P1939 OM 131 R11 Chapter 5 Fig 5 4 Scrubber Housing Assembly Drawing P1939131S1...
Page 118: ...106 OM131 Chapter 5 P1939 OM 131 R11 Fig 5 9 SLS System Mk IV Gas Schematic Drawing P193940S1...
Page 123: ...OM131 111 P1939 OM 131 R11 Chapter 5 Fig 5 14 SLS System Mk IV Bottle Assembly...