Companion Portable Technical Service Manual •
PN 20562220 Rev B
20
Companion P
or
tables
Maintenance
(Schedule A, Biennial)
X
There are two schedules for routine maintenance which the home
health care distributor may follow. These schedules allow the
distributor maximum flexibility while assuring that equipment is
operating properly. The healthcare distributor may follow either
Schedule A or Schedule B, or a combination of the two sched-
ules. Maintenance Checklists are provided for each schedule.
See Below.
Schedule A—
Biennial Maintenance
Introduction
Routine maintenance is a series of steps used to assure that the
equipment is functioning properly.
1. If a unit fails a given test, one of two things may be done:
a. Refer to Troubleshooting section of this manual.
-or-
b. Return the unit to CAIRE, Inc. for repair.
2. Schedule – Maximum of two years between routine mainte-
nance testing. Unit should be tested whenever a problem is
suspected.
Procedure
Follow the steps in order listed. If the unit fails any step, refer to
Troubleshooting section of this manual.
1. Visual Inspection
a. Remove all LOX prior to maintenance (RP3).
b. Look for damaged or missing parts
c. Verify the contents indicator reads empty and that the
spring scale moves freely.
2. Component Test
a. Remove Case (RP4)
b Perform Leak Test (RP2)
c. Preform PRV Test (RP9)
d. Preform SRV Test (RP11)
e. Pressure Retention Test (RP13)
f. Replace Case (RP4)
g. Liquid Contents/Level Indicator Test (RP7)
h. Flow Rate Test (RP19)
3. Check Efficiency of Unit:
a. Inspect the unit for cold or sweaty condition and for ex-
cessive venting from relief valve (some venting may be nor-
mal).
b. Perform NER Test (RP23)
4. Prepare for Use
a. Empty Contents (RP3)
b. Clean and/or disinfect the unit following instructions set
forth in the Operation section.