Vacuum adjustment knob, Figure 1 medical suction unit, Using the suction unit – Invacare 636959 User Manual
Page 4: Caution, Connect the unit to power, Turn the power switch on (i), Clockwise to increase vacuum, Counter-clockwise to decrease vacuum, Using the suction unit caution

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Part No 636959
FIGURE 1 Medical Suction Unit
Using the Suction Unit
CAUTION
Should fluid be aspirated back into the unit, send your suction unit to an
authorized service center for a detailed inspection as the vacuum pump may
have been damaged.
NOTE: For this procedure, refer to FIGURE 1 and FIGURE 2 on page 5.
NOTE: If the unit sustains a severe drop, validity of the gauge must be checked. Inspect if
the float shut‐off is still functioning properly when the liquid in the collection bottle reaches
the safe full level.
NOTE: Always transport unit with vacuum adjust knob rotated fully clockwise in case
unit is dropped.
1. Ensure the suction tubing is connected to the labeled patient connector(outlet)
on the collection bottle.
2. Ensure that all connections are secure and without leaks.
3. Connect the unit to power.
4. Turn the power switch On (I).
5. Adjust the vacuum level from 0 to 560 mmHg by turning the vacuum adjust
knob:
• Clockwise to increase vacuum.
• Counter‐clockwise to decrease vacuum.
NOTE: Refer to the vacuum gauge while setting the desired level of vacuum. To accurately
read the gauge, block the patient end of the hose or cap off the collection bottle and allow the
gauge to reach a stable vacuum reading.
Vacuum
Adjustment
Knob
Vacuum Gauge
Collection
Bottle
Holder
Hydrophobic Filter
Connection
Tubing
Power Cord
Fuse
Elbow Connector
Lid
On (I)
Position
Off (O)
Position
Power
DETAIL “A”
Connection
Tubing