Welch Allyn PROPAQ CS Service Manual page 86

82 Repair procedures
Cuff fittings
Air system integrity in the NIBP system is essential to ensure accurate measurements.
Routine wear of the O-ring gasket located in the threaded fitting of the cuff hose can
result in air leaks. If you encounter air leaks that can not be found from the tests in this
manual, replace the O-ring first.
1. Disconnect the cuff hose from the monitor.
2. Using pliers, pull off the metal fitting from the cuff hose.
3. Cut approximately 1/2" off the cuff hose.
4. Using a small screwdriver, remove the C-clip from the fitting.
5. Remove the knurled nut from the fitting.
6. Remove the O-ring gasket and replace it with a new one, being careful not to nick or
otherwise damage the new O-ring.
7 . Reassemble the fitting with the knurled nut and C-clip.
8. Press the fitting back onto the cuff hose.
WARNING Use of NIBP channel with leaking cuff hose fittings may result in
inaccurate non-invasive blood pressure measurements.
Knurled
Nut
O-ring
Welch Allyn Propaq CS Vital Signs Monitor
Cuff
Hose
C-Ring
0150-31