
36
OM131
Chapter 3
P1939-OM-131 R11
6.
Charge the SLS System to the required charging pressure (see Table 3.2 for details). Slowly
pressurise the gas cylinders. Ensure, using torch, that an excessive temperature rise does
not occur within the cylinders during this operation. If the cylinders become too warm to touch,
stop charging and leave the cylinders to cool before continuing.
The use of a Divex portable booster skid (Divex Part No. DM1480) is recommended to assist in
charging if the required cylinder charging pressure is greater than that available from storage.
N
OTES
(1) When charging the SLS System using enriched oxygen mixes (mixes containing greater than
21% oxygen), the gas booster should not be required. These gases should be decanted directly
into the SLS System. The required charging pressures are given on the Table 3.2.
(2) After carrying out shallow training dives with the SLS System, care must be taken to ensure that
the O
2
rich mixture used is fully vented from the SLS System before recharging with the correct
gas mix for the proposed working depth. After completion of training dives, the cylinders should
be vented, then charged then vented again and then recharged to ensure the gas mix for the
working depth has not been compromised.
7.
Vent the charging whip and disconnect.
8.
Replace the blanking cap on the charging point.
Summary of Contents for B44771
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 ...