Figure 6-7: Power Supply - Nellcor NPB-190 Service Manual

Section 6: Disassembly Guide
6-8
Installation
7. Reconnect the AC leads. The wire from the Power Supply labeled "N" goes
to the terminal labeled "N" on the PEM. The wire from the power supply
labeled "L" connects to the terminal labeled "L" on the PEM.
8. Place the Power Supply in the bottom case.
Caution: When installing the Power Supply, tighten the seven screws to a
maximum of 10 inch-pounds. Overtightening could strip out the inserts in
the bottom case, rendering them unusable.
9. Install the seven screws in the Power Supply and tighten.
10. Use a 10mm wrench to connect the power supply ground lead to the
equipotential lug. Tighten to 12 inch pounds.
11. Follow the procedure in paragraph 6.7, step 5.
12. Connect the ground wire to the PEM and position it so that it does not come
into contact with components on the Power Supply PCB.
13. Complete the procedure in paragraph 6-5.

Figure 6-7: Power Supply