Troubleshooting & repair, Flashing and rotor voltage test (continued) – Lincoln Electric COMMANDER SVM145-B User Manual
Page 90
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TROUBLESHOOTING & REPAIR
F-34
F-34
COMMANDER 300
FLASHING AND ROTOR VOLTAGE TEST
(continued)
FIGURE F.12 – ROTOR BRUSH LEADS
#200A
#200B
#201
TEST PROCEDURE
1.
Using the 3/8" wrench, remove the sheet
metal screws from the left front case side.
2.
Carefully remove the left case side.
3.
Set the volt/ohmmeter to the DC volts posi-
tion.
4.
Connect the positive meter probe to the
brush nearest the rotor lamination (leads
#200A and #200B). See Figure F.12.for
location.
5.
Connect the negative meter probe to the
other brush (lead #201).
6.
Start the engine and run it at high idle
speed (1900 RPM). Check the voltage
reading on the meter. It should read
approximately 160VDC.
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