Upgrading Ventilation Tube - Weinmann MEDUMAT Basic Servicing And Repair Instructions

6.20 Upgrading ventilation tube

In order to reduce the ventilation resistance of the respiration tube, the ventilation tube
device number 1011 (Basic) or 1137 (Basic p) should be upgraded in the course of the two-yearly service.
In addition a spring is installed to prevent kinks in the tube.
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Tools required:
• Crosstip screwdriver size 2,
• Socket wrench 7 mm,
• Side nippers or sharp knife,
• Spring .
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1. Open the device (see "6.4 Opening the
device" on page 22).
2. Pull the ventilation tube
nection.
3. Unscrew the elbow connection.
4. Unscrew the chromium-plated tube sleeve from
the elbow connection.
5. Screw the chromium-plated tube sleeve togeth-
er with a sealing washer into the connection
(where the elbow connection was previously
installed).
6. Shorten the ventilation tube
65 mm.
7. Slide the spring onto the ventilation tube
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8. Push the ventilation tube
9. Close the device (see "6.5 Closing the
device" on page 23).
10. Perform a final check (see "3. Final Check" on
page 8).
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Repair information and repair instructions
off the elbow con-
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to exactly
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.
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onto the tube nipple.
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on devices up to
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Elbow
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connector
Tube
+
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sleeve