LOAD METER GAGES (cont)
The load meter gage can be tested while installed in the locomotive. Attach leads from variable dc
voltage tester to rear of gage.
Test load meter gage (7) by the following:
Use a variable millivolt dc voltage supply and a multimeter and test load meter gage (7). Test at half scale
and full scale and compare amount of power supplied to the reading shown on load meter gage.
If gage is not accurate, further repair is required. Send load meter gage (7) to a calibration facility.
Place load meter gage (7) in control cabinet and install three screws (6) and nuts (5).
Connect load meter light (4).
Connect two electrical leads (3) to load
meter gage (7) and install two flat washers (2) and nuts (1). Remove tags.
Close electrical equipment cabinet door.