Inspection, Cleaning, Maintenance And Test Intervals - Invacare MicroAIR 3500S Owner's Operator And Maintenance Manual

SYMPTOM
The mattress is deflating or has low
pressure even though the pump is working.
Patient's body is sagging in the middle or
bottoming out.
Patient is experiencing pain from the
mattress.
Pump turns off although the power light is
still on.
Pump gets hot.
Controls lock up or "freeze"; won't accept
any inputs.

Inspection, Cleaning, Maintenance and Test Intervals

TIME INTERVAL
When Soiled
168 hours (One week of continuous
operation)
670 hours (Four weeks of continuous
operation)
Between Users
Annually or after 8000 hours of operation
(whichever comes first)
Part No 9692006
SECTION 4—MAINTENANCE AND TROUBLESHOOTING
SOLUTION
Check the mattress connections on the side of the pump housings;
check the connector tubes for kinks, crimps or damage.
Increase the comfort setting by turning the control knob to a
firmer setting. Adjust the control knob and wait three minutes
before making another change so that pressures can stabilize.
Ensure range switch is adjusted properly. Refer to Range Switch on
page 12.
Decrease the comfort control setting by turning the control knob
to a softer setting. Adjust the control knob and wait three minutes
before making another change so that pressures can stabilize. Wait
until patient's body starts to sag in the middle, then adjust the
control knob slightly firmer to bring the patient's body level.
Check the connector tube(s) and mattress manifold(s) for
restricted air flow or blockage. Clean the air filter, if necessary.
Clear blankets, bed sheets or paper away from the back of the
pump. Be sure the air flow into the pump and mattress is clear.
Turn pump off and unplug the pump. Wait a few seconds and plug
the pump back in. Turn on the pump.
Check the air filter on the back of the pump.
DESCRIPTION OF THE REQUIRED ACTIVITY
Launder the therapy pad.
Wipe down the therapy pad, air hoses and power unit.
Clean the therapy pad.
Inspect the air hose connections and mattress assembly function
Inspect the power unit and power cord.
Replace/clean the air filter.
Launder the therapy pad.
Perform general physical inspection of the mattress, air hoses,
power unit and power cord.
Perform electrical line leakage test.
Perform electrical ground integrity test.
Launder the therapy pad.
Perform general physical inspection of the mattress, air hoses,
power unit and power cord.
Perform electrical line leakage test.
Perform electrical ground integrity test.
Check for loose hardware or physical damage which might affect
operation or safety.
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MicroAIR®3500S