Pentax ECY-1575K [18/80] Inspection of angulation controls slowly manipulate the angulation control lever to see that it functions smoothly be certain that a full and appropriate range of angulation is possible

– 18 –

3) Inspection of Angulation Controls

Slowly manipulate the angulation control lever to see that it functions smoothly.

Be certain that a full and appropriate range of angulation is possible.

(1)

(1) Up - Down

Figure 2.10

CAUTION:

ANY lack of smooth operation of the angulation controls may be an early indication of

internal damage to part(s) and/or failure within the endoscope’s angulation system. To

avoid the possibility of further endoscope damage or the potential for malfunction of

the angulation system, do NOT use the endoscope if the angulation mechanism does

not operate properly.

Prior to use ensure that the angulation controls can rotate smoothly, that there is no

grinding or excess friction within the angulation system and that the distal bending

section bends freely and smoothly. NEVER APPLY EXCESSIVE FORCE TO THE

ANGULATION CONTROLS!

When an endoscope exhibits excessive “knob play” or if angulation is lost in any

direction,doNOTusetheinstrument.Excessive“knobplay”canbedenedas

rotating of the angulation control knob(s) in any one direction for more than 30

degrees without any corresponding distal tip angulation. The examples above are

indications that service is required to avoid more serious problems with the angulation

control system, including angle or pulley cable/wire breakage and/or the possibility of

a “frozen” distal bending section.

A “frozen” bending section can make instrument extraction from a patient more

difcult.