Procedure 4 - Replacing Sieve Beds - Invacare 6LXO2 Service Manual

SIEVE BEDS
PROCEDURE 4 - REPLACING SIEVE BEDS (FIGURE 1)
TO PREVENT ELECTRICAL SHOCK, ALWAYS DISCONNECT CONCENTRATOR FROM
ELECTRICAL OUTLET BEFORE SERVICING.
NOTE: Always replace Sieve Beds in pairs to ensure that both beds are in optimum condition.
1. Unplug unit.
2. Remove cabinet (Refer to PROCEDURE 1 - REMOVING CABINET).
3. Remove ty-wraps and disconnect P.E Valve and sieve bed tubing from top of sieve beds.
4. Remove P.E. Valve assembly (Refer to PROCEDURE 3 - REPLACING P.E. VALVE (5LX/5LXO2/
5LXO2T/6LXO2/6LXO2T ONLY).
5. Loosen adjustable clamps on sieve beds and slide clamps down below the adjustable clamp hangers.
6. Lift sieve beds up and rest sieve beds on top rear of base.
7. Remove plastic clamps and reinforced tubing from bottom of both sieve beds and remove sieve beds.
DO NOT remove plastic caps from NEW sieve bed fittings until ready to install NEW beds. Severe
sieve contamination can occur if uncapped beds are exposed to air.
8. Remove plastic caps from the top and bottom fittings of the NEW sieve beds.
9. Install NEW sieve beds reversing STEPS 3-7.
NOTE: After replacing sieve beds, retiming may be necessary. (Refer to PROCEDURE 18 -
TIMING OF THE INVACARE 5 CONCENTRATOR).
10. Run unit and check for leaks (Refer to PROCEDURE 19 - LEAK TEST).
11. Reinstall cabinet (Refer to PROCEDURE 1 - REMOVING CABINET).
P.E. Valve Assembly
( 5LX/5LXO2/5LXO2T
6LXO2/6LXO2T )
Sieve Bed Tubing
Sieve Bed
Adjustable Clamp
Hangers
Reinforced Tubing
(Sieve Bed )
Plastic Clamp
Plastic Caps
CAUTION
CAUTION
Ty-wraps
Adjustable Clamp
FIGURE 1 - REPLACING SIEVE BEDS
39
P.E. Valve Tubing
(5LX/5LXO2/5LXO2T
6LXO2/6LXO2T)
P.E. Valve
Tubing
PROCEDURE 4
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