OM131
79
P1939-OM-131 R11
Chapter 4
To replace the scrubber door and set the torque, proceed as follows:
1.
Remove the old scrubber door from the Backpack.
2.
Lightly lubricate the main O-ring (Fig 4.9, Item 7) on the new scrubber door using an oxygen
compatible lubricant (e.g. Christo-lube fluorinated grease - Divex Part No SM034).
3.
Install the new scrubber door into the Backpack and tighten it lightly to just 'finger tight' only.
4.
Fit the special torque adapter tool (Divex Part No. TA51193) (Fig 4.10) to the handwheel
assembly.
5.
Using an appropriate torque wrench, tighten clockwise until a torque of 2.7 to 2.9 Nm (24 to
26 lb-in) is reached.
6.
Mark the inside of the handwheel outer rim with white paint, in line with the white side of the
tommy bar.
7.
If this is a new setting on a door that has previously been marked, always remove the existing
mark with wire wool or similar abrasive material.
8.
If further guidance is required, please see P1939-PGN-6774.
N
OTE
If the main assembly is removed the screw (Fig 4.9, Item 9) must be fixed in place using a thread
retainer compound.
Fig 4.10 Torque Adapter Tool - TA51193
4.5.2
Upper penetrator replacement
4.5.2.1
Counterlung and demand valve penetrators
1.
Release the wing nut and remove the thermal regenerator.
2.
Using the duct spanner (Divex Part No. M2921B) engaged in 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 & Fig 4.1, Item 15) and remove.
3.
Push down on the upper penetrator to break the hold of the silicone sealant and remove.
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...