┌────────────────┬──────────────────┬───────────────────────────┐
│ Problem
│ Potential Cause │ Corrective Action
│
╞════════════════╪══════════════════╪═══════════════════════════╡
│ Cannot achieve │ Leak in the
│ 1. Apply a liquid leak
│
│ a 3-second
│ inspiratory
│ detector to both ends of │
│ inspiratory
│ lockout tubing
│ tubes connected to the
│
│ lockout at
│ system.
│ compound-lockout cartridge│
│ 12-o'clock
│
│ and both ends of tubes
│
│ knob position. │
│ color coded yellow.
│
│
OR
│
│ Correct any bubbling
│
│ A maximum
│
OR
│ connections.
│
│ inspiratory
├──────────────────┼───────────────────────────┤
│ lockout of 5-7 │ Gas escaping
│ 2. Use 1/2 inch open-end │
│ seconds.
│ around a worn
│
│ O-ring on time- │ Check condition of small │
│
│
│ limit valve.
│ O-ring on end of valve.
│
│
│
│ Replace if cut, flat, or │
│
│
OR
│ worn.
│
│
├──────────────────┼───────────────────────────┤
│
│ Faulty time-limit│ 3. Replace with a new
│
│
│ valve (P/N 344B) │ valve.
│
│
│
│
│
│
│
OR
│
│
├────────────────┼──────────────────│───────────────────────────│
│
│ Internal
│ 4. Troubleshoot the
│
│
│ malfunction of
│ compound-lockout
│
│
│ compound-lockout │ cartridge.
│
│
│ cartridge.
│
│
│
│
│
│
└────────────────┴──────────────────┴───────────────────────────┘
Table 2-12. Inspiratory time-limit troubleshooting.
(11) Inspiratory time (Mark 2).
(a) Rotate the mode selector to CONTROLLED IMV ON and adjust the
Mark 2 inspiratory time for 2.5 seconds (plus or minus 0.2 second).
(b) Apply Lubewick to the O-ring on the outside of the retention cap and
install the control knob so the flange stop screw is clockwise (above) the 3-o'clock stop
on the face plate.
(c) Confirm a 2.5 second (plus or minus 0.2 second) inspiratory time
and then rotate the control knob counterclockwise to ensure the stop screw in the knob
flange is backed out far enough to allow rotation past the face-plate stop.
(d) A fully counterclockwise position should achieve an inspiratory time
of less than 0.5 second.
MD0355
2-25