84
OM131
Chapter 4
P1939-OM-131 R11
3.
Unscrew the first gas bottle from its manifold (the charging point cannot be turned until the
bottle is removed).
4.
Unscrew the check valve.
5.
Unscrew the spring retainer (Fig 4.13, Item 2) and withdraw.
6.
Take out the spring (Fig 4.13, Item 7) and valve pin (Fig 4.13, Item 4).
7.
Remove the valve seat (Fig 4.13, Item 5) using a small stud extractor.
8.
Fit a new valve seat (Fig 4.13, Item 5) countersink end first into the body (Fig 4.13, Item 1).
Use a 1.5 mm pin (such as a welding rod) to ensure that the valve seat does not turn during
installation.
9.
Re-assembly is the reverse of above.
10. Lightly lubricate O-rings before re-assembly using an oxygen compatible lubricant (e.g.
Christo-lube fluorinated grease - Divex Part No SM034).
4.5.5
Burst disc replacement
Fig 4.14 Corrective Maintenance - Burst Disc Assembly
Item
Description
Part No
1
Plug
DD041719/VM049
2
Burst Disc
VM050
3
Seat
VM051
4
Gas Manifold
DM4511
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...