Olympus Evis Exera II Instructions Manual page 43

2.
Confirm that the flexibility adjustment ring can be turned smoothly when the
insertion tube is straight.
3.
Set the insertion tube to the most-flexible and most-rigid conditions,
respectively. In each case, hold the marks of 30 and 50 cm of the insertion
tube with two hands, and bend it gently as shown in Figure 3.5. Confirm that
the actual flexibility changes according to the flexibility adjustment setting.
Figure 3.5
EVIS EXERA II GIF/CF/PCF TYPE 180 Series OPERATION MANUAL
Do not use the endoscope if the markings are not clearly
visible. If the operator is uncertain of the flexibility of the
endoscope, insertion and manipulation of the endoscope
may cause patient pain and/or injury.
If the insertion tube is coiled into a too small diameter, the
flexibility adjustment ring may not operate smoothly. This
does not indicate a malfunction.
50 cm
30 cm
Chapter 3 Preparation and Inspection
39