Komatsu 830E-AC Shop Manual page 335

2. VHMS SNAPSHOT PROCEDURE
A snapshot through the VHMS system records
important data about different systems on the
machine. Take snapshots on a periodic schedule
and store them as part of the machine history. These
snapshots can then be compared and trends can be
analyzed to predict future repairs.
A single snapshot records machine data for 7.5 min-
utes.
NOTE: On a 830E-AC drive truck, a laptop PC
should also be connected to the GE drive system to
allow for maximum horsepower check of the engine
during the snapshot recording process.
1. Allow the machine to run until it is at normal
operating temperatures.
2. Press and hold the GE data store switch for
three seconds, then release. The white data
store in progress LED should illuminate.
3. While the manual snapshot is being taken,
operate the machine.
a. Operate the engine at high and low idle.
b. Raise the dump body to the full dump posi-
tion.
D12004
c. Lower the dump body to the frame, then hold
it in the power down position momentarily.
d. Turn the steering wheel to full left, then full
right against the stops momentarily.
e. Travel forward to maximum speed and apply
the brakes hard.
f. Travel in reverse.
g. On an 830E-AC truck, perform a horsepower
check using a laptop PC connected to the
GE drive system.
4. The white LED will begin flashing slowly after
five minutes has elapsed, then flash rapidly dur-
ing the last 30 seconds.
5. Wait until the LED has finished flashing. After
one more minute, turn the key switch OFF to
stop the engine. Verify the VHMS controller red
LED display is off.
6. Use VHMS Technical Analysis Tool Box pro-
gram to download the snapshot data into a lap-
top PC. Use the FTP feature to send the
download data to WebCARE.
VHMS SOFTWARE D12-9