Procedure 2 - Preventive Maintenance; Cabinet Filters; Inlet Filter; Bacteria Filter - Invacare 6LXO2 Service Manual

PROCEDURE 2

PROCEDURE 2 - PREVENTIVE MAINTENANCE

P
R
E
TO PREVENT ELECTRICAL SHOCK, ALWAYS
V
DISCONNECT CONCENTRATOR FROM ELEC-
M TRICAL OUTLET BEFORE SERVICING.
A
NOTE: The Invacare Concentrators are specifi-
I
cally designed to minimize routine preventive
N
maintenance at intervals of once per year. In
T
places with high dust or soot levels, mainte-
E
nance may need to be performed more often.
N
The following must be performed at a minimum
A
of one (1) year in service to assure years of ad-
N
ditional reliability (Refer to TROUBLESHOOT-
C
ING GUIDE for plugged filter symptoms). Only
E
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.
F
I
L
T
E
R
S
FIGURE 1 - CABINET FILTERS
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).
CAUTION
PREVENTIVE MAINTENANCE
Sound Box
FIGURE 2 - INLET 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).
In-line Check Valve
(SHOWN for identifi-
cation.)
Tygon Tubing
(Remove Bacteria
Filter.)
FIGURE 3 - BACTERIA FILTER
22

Inlet Filter

Tygon Tubing
To Top
Fitting of
Flowmeter
(Remove
Bacteria
Filter.)

Bacteria Filter