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PROCEDURE 2 - PREVENTIVE MAINTENANCE
PROCEDURE 2
PREVENTIVE MAINTENANCE
CAUTION
TO PREVENT ELECTRICAL SHOCK, ALWAYS
DISCONNECT CONCENTRATOR FROM ELEC-
TRICAL OUTLET BEFORE SERVICING.
NOTE: The Invacare Concentrators are specifi-
cally designed to minimize routine preventive
maintenance at intervals of once per year. In
places with high dust or soot levels, mainte-
nance may need to be performed more often.
The following must be performed at a minimum
of one (1) year in service to assure years of ad-
ditional reliability (Refer to TROUBLESHOOT-
ING GUIDE for plugged filter symptoms). Only
authorized or factory-trained personnel should
perform preventive maintenance on the concen-
trator. Power should be disconnected before be-
ginning preventive maintenance on the Invacare
concentrator.
Cabinet Filters (FIGURE 1)
1. Clean or replace gross particle (cabinet) filters
on both side of the cabinet.
FIGURE 1 - CABINET FILTERS
Inlet Filter
Sound Box
Inlet Filter (FIGURE 2)
NOTE: Perform this procedure as needed
depending upon the environment the concen-
trator is used in.
1. Unplug unit.
2. Remove cabinet (Refer to PROCEDURE 1 -
REMOVING CABINET).
3. Unscrew the inlet filter located on the top left of
the sound box (counterclockwise).
4. Discard existing inlet filter and replace with a
NEW inlet filter.
5. Reinstall cabinet (Refer to PROCEDURE 1 -
REMOVING CABINET).
FIGURE 3 - BACTERIA FILTER
Bacteria Filter (FIGURE 3)
1. Unplug unit.
2. Remove cabinet (Refer to PROCEDURE 1 -
REMOVING CABINET).
NOTE: The bacteria filter is accessible without
removing the control panel but, if it becomes
necessary to loosen the control panel to access
the bacteria filter, refer to PROCEDURE 9 -
REMOVING CONTROL PANEL.
3. Remove FRONT of bacteria filter from the tygon
tubing extending to the top fitting of the flowme-
ter.
4. Remove REAR of bacteria filter from the tygon
tubing extending to back of in-line check valve.
5. Install NEW bacteria filter by reversing STEPS
3-4.
6. Reinstall cabinet (Refer to PROCEDURE 1 -
REMOVING CABINET).
P
R
E
V
M
A
I
N
T
E
N
A
N
C
E
F
I
L
T
E
R
S
FIGURE 2 - INLET FILTER
(Remove Bacteria
Filter.)
To Top
Fitting of
Flowmeter
(Remove
Bacteria
Filter.)
Tygon Tubing
In-line Check Valve
(SHOWN for identifi-
cation.)
Bacteria Filter
Tygon Tubing
Summary of Contents for 3LX
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