Nellcor NPB-40 Service Manual page 22

Section 5: Disassembly Guide
5-2
Figure 5-1: Opening the NPB-40 Case
3. While holding the case together, turn the NPB-40 over with the front
panel up and the bottom of the unit closest to you.
4. Separate the case top from the bottom case on the right side of the unit
and rotate the case top to the left as shown in Figure 5-2.
Remove screws
Remove screws
Figure 5-2: Top Case Removal
J3