Service manual

Revision D 3-9
Maintenance : Domestic Electrical Safety Tests
Series 2000 Treadmill
409110-004
Ground Continuity Test
This test verifies that there is continuity (less than 100 m Ω resistance)
between all the exposed metal surfaces, which have the potential to
become energized, and the ground prong on the mains AC power cord.
If the metal surfaces are anodized or painted, scrape off a small area in
an inconspicuous area on the aluminum casting for the probe to make
direct contact with the metal.
Use a digital multimeter to check all the metal surfaces of the
equipment as illustrated below. Make adjustments for any resistance in
the test leads.
If the measurements are significantly out of range, check for breaks in
the power cord or in the internal connections within the unit.
MD1128-007A+
<0.1Ω