60
OM131
Chapter 4
P1939-OM-131 R11
4.3.2.3 Check scrubber canister seal
Check the condition of the scrubber canister sealing gasket (Fig 3.7, Item 2, page 48) inside the
CO
2
scrubber housing. Replace it if damage is observed.
See Section 4.5.2.2, notes 8. to 13.
4.3.2.4 Check operation of two 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.
Remove the blanking plug from the single stage regulator test port and insert the test gauge
(Divex Part No DM32540) from the Tool and Test Kit.
3.
Reset the spool valve to close it.
4.
Charge the SLS System to at least 150 bar with breathing quality AIR.
5.
Insert the flowmeter connector (Divex Part No. DM32580) from the Tool and Test Kit into the
main supply penetrator on the inside of the CO
2
Scrubber Housing.
6.
Actuate the spool valve by pressing on it.
7.
Check that the pressure gauge reads between 0.96 and 1.03 bar (14 and 15 psi) and that the
centre of the flowmeter ball lies between the red bands on the flowmeter (3.7 - 4.8 L/min).
8.
If not slacken the locknut (Fig 4.7, Item 22) and using the allen key provided move the
regulator adjustment screw (Fig 4.7, Item 23) until the settings are correct. Tighten the locknut
(Fig 4.7, Item 22) to lock this setting.
9.
If it is not possible to achieve the flow rate when the regulator pressure is correctly set, then
the injection orifice penetrator should be removed and either ultrasonically cleaned or
replaced.
10.
Reset the spool valve. Blank off the end of the injection orifice with a finger and check that the
test gauge remains at zero. If gauge reading increases the 1st stage piston o-rings or the
spool valve o-rings are damaged and must be replaced.
N
OTE
Always fully discharge the air from the SLS System immediately after completing the above
procedure.
4.3.2.5 Check operation of single stage regulator
N
OTE
This should be done with the supply hose connected to the Helmet to ensure that the single stage
regulator inlet filter and the helmet side-block connector filter are not contaminated and restricting
the flow.
1.
Connect the SLS System Backpack single stage regulator hose to the SLS System Helmet
sideblock and connect an AIR supply to the helmet.
2.
Remove the blanking plug from the first stage regulator test port and insert the test gauge
(Divex Part No. DM32540) from the Tool and Test Kit.
3.
Remove the scrubber door and CO
2
scrubber canister.
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 ...