5. Removal and Replacement of Major Components and Modules
5-68
W. PRESSURE TRANSDUCER (Reference Drawing: 402-00034A)
Removal
1. Ground strap must be worn.
2. Remove AC/DC PCB. (See Step B.)
3. Remove Pump Motor. (See Step X.)
4. Remove Daughter PCB. (See Step K.)
5. Cut Pressure Transducer legs off from Daughter PCB.
6. Use hot soldering iron, remove remaining legs from Daughter
PCB.
7. Use a solder pull or solder wick to remove left over solder.
Installation
1. Ground strap must be worn.
2. Locate the notch on the Pressure Transducer, insert the Pressure
Transducer into Daughter PCB (Solder Side), notch is at Pin 1.
Solder in place.
3. Remove O-ring from Pressure Transducer.
4. Apply a thin film of Teflon Grease over O-ring.
5. Apply Kapton Tape over Pressure Transducer & reattach O-ring.
6. Reinstall Daughter PCB. (See Step K.)
7. Reinstall Pump Motor. (See Step X.)
8. Reinstall AC/DC PCB. (See Step B.)
9. Reinstall the Instrument Cover. (See Step A, 1 – 5.)
10. Perform “Pressure Transducer’ calibration.
11. Perform a System Operational Check-Out, Chapter 7.
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