(h) Push the reset button. Rotate the mode selector to
SPONTANEOUS BREATHING ON and position the single cam stop at the same
position as the pencil mark on the stem. Secure in place by tightening the retention cap
with the 1/2-inch open-end wrench.
(i) Rotate the pencil mark on the stem back to 12 o'clock, turn the
mode selector to CONTROLLED IMV, and confirm an inspiratory-lockout time of 3
seconds (plus or minus 0.2 second).
(j) Apply Lubewick to the O-ring on the outside of the retention cap and
secure the control knob with the index at the 12 o'clock position as shown in figure 2-8.
Recheck for a 3 second lockout time.
(k) Rotate the knob clockwise against the cam stop to confirm a 5 to 7
second lockout time.
Figure 2-8. Control knob set at 3 seconds.
(l) Push the reset button and rotate the mode selector to
SPONTANEOUS BREATHING ON. If the inspiratory time- limit parameters are met,
rotate the expiratory flow gradient control fully clockwise (off) and proceed to the next
step, calibrating inspiratory time. If they are not met, you will have to troubleshoot the
inspiratory time-limit system.
(m) Use the procedures outlined in Table 2-12 to troubleshoot the
inspiratory time-limit system.
MD0355
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