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XI
Troubleshooting & Repair Procedures
Figure 10: Pressure Gauge Connection
5) Wet a finger with leak detector and lightly place it against
the open end of the vent tube located near the bottom of the
unit. If bubbling occurs, replace the vent valve (RP16).
6) Use SNOOP liquid leak detector to test all fittings and con-
nections. Verify that the unit maintains 1.52 bar (22 psi)
pressure during the leak test.
7) With pressure remaining in the unit, place a small amount of
SNOOP on the tip of the C1000/T QDV. A small amount of
leakage around the poppet of the fill connector is acceptable,
provided that the total leakage rate of the unit is not greater
that the NER.
8) Blow dry with compressed gas the QDV poppet and the vent
valve.
RP2B - Leak Test (Unit Containing Liquid Oxygen)
1) Remove the case (RP4).
2) Connect the test pressure gauge to the oxygen outlet barbed
fitting and set the flow control valve to the highest setting.
3) Place the C1000/T in the portable test fixture (Figure 10).
4) Wet a finger with leak detector and lightly place it against
the open end of the vent tube located near the bottom of the
unit. If bubbling occurs, replace the vent valve (RP16)
5) Use SNOOP liquid leak detector to test all fittings and con-
nections. Verify that the unit maintains 1.52 bar (22 psi)
pressure during the leak test.
6) With pressure remaining in the unit, place a small amount of
SNOOP on the tip of the C1000/T QDV. A small amount of
leakage around the poppet of the fill connector is acceptable,
provided that the total leakage rate of the unit is not greater
that the NER.
7) Blow dry with compressed gas the QDV poppet and the vent
valve.
RP3 – Emptying/Warming Portable RR
1) Turn the FCV knob to the highest flow setting.
2) Allow unit to sit for 24 hours before proceeding.
RP4 – Side Cover RR
1) C1000T only: Remove the moisture cup by turning the quar-
ter-turn fastener counter clockwise and pulling the cup away
from the unit.
2) Place the unit on its side with the back side cover facing you.
Use a 7/64 in Allen wrench to remove five socket head cap
screws located underneath the vent valve lever and the cor-
ners of the side cover.
3) Carefully separate the two side covers from each other.
4) Use a 7/64 in Allen wrench to remove the two socket head
cap screws and the two lockwashers located in the tables on
the bottom of the container.
5) Use a 1/16 in Allen wrench to loosen the set screw in the
flow control valve knob.
6) Remove the flow control valve knob and the decal. If the
knob does not use a set screw, insert the Allen wrench into
the hole in the knob.
7) Simultaneously push in and pull up on the Allen wrench to
remove the knob.
8) Use a small flat-blade screwdriver to loosen and remove the
two flat-head screws from the flow plate. Remove the flow
plate.
9) Remove the front side cover.
10) Install the side covers by reversing the above procedure.
RP5 – Top Bezel RR
1) Remove the side covers (RP4)
2) Use a 7/16 in deep well socket and a T-handle or ratchet
wrench to remove the oxygen outlet barbed fitting. Do not
lose the O-ring
3) Remove the top bezel.
4) Install the top bezel by reversing steps 1-3.
Companion Portable Technical Service Manual • PN 20562220 Rev B
31
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