Welch Allyn PROPAQ CS - Manual (Page 73)

Service Manual Repair procedures 69
3. Slightly spread the casing open at the top until you can disconnect the pressure
transducer tube indicated below.
4. Spread the casing open to an angle of 45 degrees.
5. Detach the expansion connector cable (to P1) from the Front Chassis of the monitor
as indicated in the figure below.
Caution Before opening the casing more than one inch in the next step,
disconnect the tube from the pressure transducer at the joint. Failure to
disconnect the tubing may cause damage to the transducer or tubing.
Disconnect tubing from pressure
transducer