Welch Allyn Spot Vital Signs 4400, Service Manual

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2. Disconnect the power harness from the main PCA board and then carefully remove the power
harness.
Reassembly notes
Kit item:
•
107186, SRV KIT, POWER HARNESS
NOTE Reassembly is the reverse of disassembly.
NOTE Ensure that you install the washers in the correct order. The flat washer
slides onto the barrell first, followed by the locking washer, with the toothed side
pointing toward the communications board.
Remove the SureTemp module
WARNING The main PCA board is not secured to the front housing. Ensure that
you hold the main PCA board in place if you need to carry the device or tip the
device onto its end.
1. With the unit laying flat, reach underneath and grasp the top of the probe well with your
thumb and forefinger. Firmly pull the probe well to remove it from the holder.
44 Disassembly and repair