CAIRE COMPANION 1000 Technical Manual page 48

4-2 Troubleshooting
SYMPTOM PROBABLE CAUSE
Unit will not Unit contains unsaturated
maintain liquid
acceptable
operating
Gas leak
pressure when
in use
Primary relief valve
Unable to Companion 1000/T not
start fill or properly engaged on
excessive fill Stationary
time
Stationary is empty
Companion 1000/T vent valve
not fully open
Stationary liquid supply is
undersaturated
Vent valve extension tube
blocked with debris or
misaligned
Excessive Partial or complete loss of
venting after vacuum
fill
Liquid leakage Companion 1000/T fill
from coupled connector lip seal worn or
fill connectors damaged
during fill
Liquid or Ice crystal preventing proper
excessive gas closure of poppet
leakage at the
fill connector
Dirty or damaged poppet
poppet
Unable to Fill connectors frozen
disconnect together due to presence of
Companion moisture
1000/T after
fill
Companion 1000/T Liquid Oxygen System Technical Manual
Allow liquid to saturate at 22 psig
(152 kPa). May require as long as 30
minutes at no flow.
Locate leak; repair as needed.
Conduct primary relief valve test and
replace valve if necessary.
Make certain that the Companion
1000/T is completely engaged.
Change or refill the Stationary.
Verify vent valve lever adjustment
allows valve to open completely.
Perform "Resaturating Liquid
Oxygen" procedure described in
Companion Stationary Technical
Manual.
Refer to section 5.9, Vent Valve.
Remove vent valve extension tube
and blow out tube with compressed
gas. Reassemble, ensuring proper
alignment of the vent tube and side
cover clearance hole.
Conduct NER test and contact
Replace Companion 1000/T fill
connector lip seal.
Engage and disengage mating fill
connectors several times to dislodge
ice crystal.
Replace female fill connector
assembly.
Allow unit to sit until connections
warm enough to disconnect. (Fill
connectors should be dried with lint-
free cloth before filling.)
ACTION
B-701964-00 Rev. C