OM131
25
P1939-OM-131 R11
Chapter 2
The harness is load tested in accordance with BS EN 361 and incorporates a rescue lifting point (Fig
2.9, Item 9).
N
OTE
The rescue lifting point 'D' ring is has a SWL (safe working load) of 200kg.
Removable enclosures (Fig 2.9, Items 2 & 3) on each shoulder strap of the harness keep the
counterlungs stored flat during normal diving operations. These are made in a strong cordura fabric
to prevent damage. To release the counterlungs the diver pulls the actuation cable assembly (Fig
2.9, Item 5). This draws the two actuation cables through a series of Teflon lined loops on the
counterlung enclosures allowing them to fall open and the counterlungs to deploy ready for use. The
harness also has two optional weight pockets (Fig 2.9, Item 7) to enable the diver to adjust his
buoyancy if required.
2.4.2
Counterlungs and enclosures
The counterlungs are fitted inside fabric enclosures (Fig 2.9, Items 2 & 3) which are laced up, whilst
the SLS System is in its stand-by mode, to form a compact protection sleeve over the diver's
shoulders. When the actuation handle (Fig 2.10, Item 7) is pulled, the counterlung enclosures open
up and permit the counterlungs to deploy.
2.4.3 Actuation
cable
assembly
The actuation cable assembly is shown in Fig 2.10. Pulling this cable is one of the actions required
to transfer the SLS System from its stand-by to operational mode. The actuation cable is pulled out
completely when the system is required. This action switches on the two stage regulator to start the
gas bleed and deploys the counterlungs.
The actuation sleeves, which run inside the harness, form an armoured protection sheath for the
actuation cables. These are routed from the harness waistband to the counterlungs and the two
stage regulator. Cable wiper sleeves (Fig 2.9, Item 10) are fitted at the counterlung ends of these
sleeves.
Item
Description
Part No.
1
Harness
C35650
2
Counterlung Enclosure Divers Right
DM46630B
3
Counterlung Enclosure Divers Left
DM36010B
4
Actuation Sleeve Assembly
C45540B
5
Actuation Cable Assembly
C2937
6
Counterlung Assembly
CA2607
7
Weight Pocket
D308
8
Handle Retaining Band
D302
9
Rescue Lifting Point
-
10
Cable Wiper Sleeve
D328
11
Bush
D322
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...