Komatsu 830E-AC Shop Manual page 355

The interface module must be fully functional before
performing the this checkout procedure. The VHMS
controller must be initialized and fully functional
before performing this checkout procedure.
Preliminary
1. Turn the key switch to the OFF position to stop
the engine. With the key switch OFF, verify the
seven segment LED display on the VHMS con-
troller is off.
2. Turn the key switch to the ON position, but DO
NOT start the engine.
3. Allow the VHMS controller to boot up. Watch
the red, two digit LED display on the VHMS
controller to show a circular sequence of seven
flashing segments on each digit. After a short
time the two digit display should start counting
up from 00 - 99 at a rate of ten numbers per
second.
4. Attach the VHMS serial cable to the machine's
VHMS diagnostic port (2, Figure 13-3), and the
other end to the laptop PC's serial port.
5. Double-click on the VHMS Technical Analysis
Tool Box icon on the computer's desktop.
6. Enter the appropriate User Name and Pass-
word and click the [OK] button.
7. Check for any active fault codes. If any are
found, these circuits should be analyzed to
determine the cause of the fault and they must
be repaired before continuing.
8. Start the VHMS Setting Tool program by click-
ing on the icon on the laptop PC screen.
D13004 VHMS CHECK-OUT & TROUBLESHOOTING
9. Select the [Review setting information] function
and then click the [Next] button.
10. Review the settings for accuracy.
•If everything is correct, click the [Exit] button.
The checkout procedure is complete.
•If a setting is not correct, click the [Back] button,
select the appropriate category and reset the
information to the correct settings. Then
proceed to the next step.
D13-11