3-11. LOAD METER GAGE (cont)
The load meter gage can be tested while installed in the locomotive.
Attach lead of variable dc voltage tester to rear of gage.
Test load meter by the following:
Use a variable millivolt dc voltage supply and a multimeter and test load meter gage. 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 to a calibration facility.
Install load meter gage (4) on control stand. Install lamp socket (8) and secure with three lockwashers (6),
screws (7), and nuts (5).
Connect two electrical leads (3) and install four flat washers (2) and two nuts (1) to load meter gage (4). Remove