Covidien WarmTouch, Service Manual

Page: 175 / 314

Equipotential Stud Replacement
Service Manual 10-57
4.
From the bottom of the enclosure, insert the threaded end of the stud into the
hole (
Figure 10-42 ).
Figure 10-42. Equipotential Stud and Washer
5.
Connect the cables to the equipotential stud as follows ( Figure 10-41 on
page 10-56):
a.
Place the AC power inlet ground cable terminal on the threaded end of the stud.
b.
Place a lock washer on top of the terminal.
c.
Place a nut on top of the lock washer. Tighten the nut to 3.2 to 3.8 N-m (28.3
to 33.6 lb-in).
d.
Place the power supply ground cable terminal on top of the nut.
e.
Place a lock washer on top of the terminal.
f.
Place a nut on top of the lock washer. Tighten the nut to 3.2 to 3.8 N-m (28.3
to 33.6 lb-in).
6.
Follow the procedure Rejoining the Front and Rear Enclosures on page 9-5.
7.
Perform the following tests:
a.
Run an ohmmeter or digital multi-meter with resistance function between the
ground pin on the AC power inlet and the equipotential stud. The value must
be <1 Ohm.
b.
Power-On Test on page 7-3.
c.
Electrical Safety Tests on page 7-14.