Section 6: Disassembly Guide
6- 8
2.
Remove the three screws securing the pump bracket to the pump
module.
3.
Lift the module up and out of the chassis housing. Use caution when
removing to ensure that the pump module does not damage the lower
docking connector. Note: The pump and Blood Pressure PCB are not
field- repairable.
6.4
LITHIUM BATTERY REPLACEMENT
1.
Place the N -3100 in the standby mode by pressing the ON/STANDBY
button.
2.
Disconnect the unit from the SPS power supply. If operating in the
stacked configuration, remove the N -3100 from the stack.
3.
Set the N -3100 upside down, facing you.
4.
Remove the four corner screws that hold the unit together, and separate
the two halves of the monitor.
5.
Locate the two 3-volt lithium batteries on the UIF board (Figure 6-5).
6.
Slide the batteries from underneath the spring clips. Do not dispose of
lithium batteries by placing them in the regular trash. Dispose of
properly or return them to Nellcor Puritan Bennet’s Technical Services
Department for disposal.
7.
Replace batteries, observing correct polarity (positive terminal up).
8.
Reassemble chassis.
6.5
REASSEMBLY
Reassemble the monitor by performing the disassembly steps in reverse
order.
1.
Ensure that all plastic isolation shields are reinstalled correctly.
2.
Ensure that the small, copper wiper fingers that make contact with the
side-panel metalized coating throughout the top chassis fit properly.
3.
Ensure that all buttons are seated properly and operate smoothly.
4.
All of the side panels have channel guides molded into the top and
bottom chassis to assist in proper location and seating.
5.
To install the handle, locate the small spring attached to one side. After
all PCBs and side panels have been properly seated in the top chassis,
install the handle into the cradle in a vertical position, as illustrated in
Figure 6-7. Guide the spring into the molded channel located at the rear
of the top chassis while leaning the handle to the inside of the unit.
When properly seated, the handle will rotate out with a small amount of
spring tension and naturally return to the vertical resting position.
