72
OM131
Chapter 4
P1939-OM-131 R11
4.3.4.3 Strip down and service of single stage regulator
1.
Ensure that the gas cylinders are empty by activating the SLS System and pressing down on
the demand valve diaphragm with the demand valve activating tool (Divex Part No. M2922)
from the Tool and Test Kit.
2.
Disconnect the pipework from the SLS System main supply penetrator.
3.
Disconnect the supply pipework, from the gas cylinders at the regulator inlet banjo.
4.
Remove the single stage regulator and two stage regulator complete with the interconnecting
pipework and withdraw to the extent that the retaining screws for the actuating sleeve can be
reached.
5.
Remove screws from actuating sleeve block.
N
OTE
The screws securing the mounting plate to the regulator body should not be touched as they are
secured by Loctite 601.
6.
Remove the banjo mounting bolt (Fig 4.8, Item 10) from the regulator.
7.
Undo the bracket and withdraw the single stage regulator from the SLS System.
8.
Disconnect the flexible gas supply hose at the regulator inlet port.
9.
Remove the regulator from the SLS System.
10.
Unscrew the end cap (Fig 4.8, Item 2) and remove the spring adjustment plate (Fig 4.8, Item
5) the spring support plate (Fig 4.8, Item 4) and the spring (Fig 4.8, Item 14).
11.
Remove the slip ring (Fig 4.8, Item 11) the diaphragm (Fig 4.8, Item 20) and the diaphragm
support plate (Fig 4.8, Item 3).
12.
Unscrew and remove the valve seat retainer (Fig 4.8, Item 6) and valve seat (Fig 4.8, Item 7).
13.
Lift out the valve pin (Fig 4.8, Item 8).
14.
Remove the spring (Fig 4.8, Item 15).
15.
Check the valve seat (Fig 4.8, Item 7) for wear and replace as necessary.
33
Grub Screw
FB079
34
Gasket
VM052
35
Relief Valve
PO20640
36
Ball Bearing
RK231
37
Mounting Plate
D29010
38
Spring
RK223
39
Spring
RK235
40
Mesh
D32870
Item
Description
Part No
Содержание B44771
Страница 2: ... Intentionally Blank ...
Страница 4: ...ii OM131 Approval Sheet P1939 OM 131 R11 Intentionally Blank ...
Страница 6: ...iv OM131 Preface P1939 OM 131 R11 Intentionally Blank ...
Страница 8: ...vi OM131 List of Abbreviations P1939 OM 131 R11 Intentionally Blank ...
Страница 10: ...viii OM131 Warnings P1939 OM 131 R11 Intentionally Blank ...
Страница 12: ...x OM131 Table of Contents P1939 OM 131 R11 Intentionally Blank ...
Страница 15: ...OM131 3 P1939 OM 131 R11 Chapter 1 Fig 1 1 SLS System Mk IV ...
Страница 16: ...4 OM131 Chapter 1 P1939 OM 131 R11 Fig 1 2 SLS system layout ...
Страница 32: ...20 OM131 Chapter 2 P1939 OM 131 R11 Fig 2 4 Two stage regulator Fig 2 5 Spool valve ...
Страница 42: ...30 OM131 Chapter 2 P1939 OM 131 R11 Intentionally Blank ...
Страница 53: ...OM131 41 P1939 OM 131 R11 Chapter 3 Fig 3 3 Hose Lanyards ...
Страница 54: ...42 OM131 Chapter 3 P1939 OM 131 R11 Fig 3 4 SLS System Mk IV Rear View ...
Страница 55: ...OM131 43 P1939 OM 131 R11 Chapter 3 Fig 3 5 SLS System Mk IV Front View ...
Страница 64: ...52 OM131 Chapter 3 P1939 OM 131 R11 Intentionally Blank ...
Страница 82: ...70 OM131 Chapter 4 P1939 OM 131 R11 Fig 4 7 Annual Maintenance Two Stage Regulator ...
Страница 86: ...74 OM131 Chapter 4 P1939 OM 131 R11 Fig 4 8 Annual Maintenance Single Stage Regulator ...
Страница 109: ...OM131 97 P1939 OM 131 R11 Chapter 5 Fig 5 2 Backpack Assembly Drawing P1939229S1 ...
Страница 111: ...OM131 99 P1939 OM 131 R11 Chapter 5 Fig 5 4 Scrubber Housing Assembly Drawing P1939131S1 ...
Страница 113: ...OM131 101 P1939 OM 131 R11 Chapter 5 Fig 5 6 SLS System Mk IV Inhale Exhale Duct Assembly Drawing P1939 DG 142 ...
Страница 115: ...OM131 103 P1939 OM 131 R11 Chapter 5 Fig 5 7 SLS System Mk IV Counterlung Duct Assembly Drawing P1939 DG 159 ...
Страница 118: ...106 OM131 Chapter 5 P1939 OM 131 R11 Fig 5 9 SLS System Mk IV Gas Schematic Drawing P193940S1 ...
Страница 123: ...OM131 111 P1939 OM 131 R11 Chapter 5 Fig 5 14 SLS System Mk IV Bottle Assembly ...
Страница 125: ...OM131 113 P1939 OM 131 R11 Chapter 5 Fig 5 15 SLS System Rotowink General Assembly Drawing P1939 DG 59 ...
Страница 127: ...OM131 115 P1939 OM 131 R11 Chapter 5 Fig 5 16 SLS System Mk IV Hot Water System Drawing P1939156S1 ...
Страница 129: ...OM131 117 P1939 OM 131 R11 Chapter 5 Fig 5 18 Shroud Hot Water Hose Assembly Drawing P1939 DG 83282 ...
Страница 130: ...118 OM131 Chapter 5 P1939 OM 131 R11 Fig 5 19 SLS System Hot Water Shroud Assembly Drawing B82840 ...
Страница 132: ...120 OM131 Chapter 5 P1939 OM 131 R11 Fig 5 20 Refillable Canister Assembly Drawing P1939 DG 035 ...
Страница 133: ...OM131 121 P1939 OM 131 R11 Chapter 5 Fig 5 21 SLS System Mk IV Harness Assembly Drawing P1939137S1 ...
Страница 134: ...122 OM131 Chapter 5 P1939 OM 131 R11 Fig 5 22 SLS System Mk IV Actuation Cable Assembly Drawing P1939 DG 115 ...
Страница 135: ...OM131 123 P1939 OM 131 R11 Chapter 5 Fig 5 23 SLS System Mk IV Counterlung Assembly Drawing P1939 DG 56 ...