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3. Rotate the O2 sensor shell anticlockwise, to separate the O2 sensor cable and the O2
sensor shell. And then rotate the O2 sensor shell anticlockwise again, to separate the O2
sensor and the shell.
9.3.2 Remove Breathing Tubes
NOTE
When disassembling the breathing tube, hold the tube connector at both ends of
the tube to prevent damage of the tube.
1. Remove the filter from the Y piece.