Hi Flow Stroller Technical Service Manual • PN 14314465 Rev
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Maintenance
(Schedule A,
30 Month
)
IX
There are two schedules for routine maintenance which the home
health care distributor may follow. These schedules allow the
dis-tributor maximum flexibility while assuring that the
equipment is operating properly.
CAIRE, Inc. recommends returning the unit to a CAIRE service
facility every 10 years for vacuum check and re-evacuation if
necessary.
Schedule A –
30 Month
A.
Introduction
Routine maintenance is a series of steps used to assure that equip-
ment is functioning properly.
1.
If a unit fails a given test, one of two things may be done:
a.
Refer to Troubleshooting section (Pages 17-21) of this
manual.
b.
Return the unit to CAIRE, Inc. for repair.
2.
Schedule A – Maximum of
30 Months
between routine
maintenance testing. Unit should be tested whenever a problem is
suspected.
B. Procedure
Follow the steps in order listed. If the unit fails any step,
refer to the Troubleshooting section (Pages 17-21) of this manual.
1. Visual Inspection:
a. Look for damaged or missing parts.
b. Dry condensation pad. Replace if soiled.
2. Full Unit:
a. Fill, vent full, of LOX.
b. Check for audible or visual leaks in QDV and vent valve.
c. Verify that the meter reads full (8 LED).
3. Check Efficiency of Unit:
a. Allow the unit to stabilize after filling (10–15 minutes).
b. Inspect the bottle for cold sweaty condition, and for exces-
sive venting from relief valve (some venting is normal).
c. If either condition is observed, conduct NER test (see RP28
in this manual).
4. Flow Test (Table 1):
a. Set FCV to the highest flow setting, run for at least 20 min-
utes.
b. Check all flow settings to chart above and check pressure to
be at least 18 psig (1,2 bar).
5. Prepare for Use:
a. Empty contents by setting FCV at the highest flow setting
and running unit until dry and warm to room temperature
(approximately one hour).
b. Verify that meter reads empty (1 LED) and that the low bat-
tery LED is not lit.
c. Clean case with household glass cleaner and lint free cloth
(do not get in any valves).
TABLE 1: Flow Test Acceptable Ranges
Unit Type
FCV Setting
LPM
Standard
OFF
0
Standard
0,50
0.33 to 0.67
Standard
1,00
0.83 to 1.17
Standard
2,00
1.61 to 2.43
Standard
2,50
2.08 to 2.97
Standard
3,00
2.55 to 3.51
Standard
4,00
3.43 to 4.62
Standard
6,00
5.14 to 6.92
Standard
8,00
6.72 to 9.28
Standard
10,00
8.42 to 11.53
Standard
12,00
10.24 to 13.83
Standard
15,00
12.97 to 17.28
