Komatsu 530M Operation & Maintenance Manual page 140

OM6007 2/99
Payload Meter II
BATTERY REPLACEMENT PROCEDURE
ERROR CODE, F-09, DISPLAYED
Replacing the Battery
The payload meter has an internal battery used to
protect the memory from being erased when the key
switch is turned to the OFF position. Battery life is
approximately 2 years. The capacity of the battery is
monitored by the payload meter. When the voltage of
the memory battery does drop, error code, F-09, will
be displayed.
When the F-09 error code appears, download the data
within 48 hours; otherwise, the data may be lost. The
Haul Cycle data may not be recorded properly while
F-09 is displayed.
At this time it will be necessary to replace the battery.
This should be performed when the truck is in an
unloaded condition. The data stored in the payload
meter should be downloaded to a personal computer
or carry out the memory card dump operation. If this is
not done, when the battery is disconnected all data will
be lost.
All that is required is a phillips-head screwdriver and a
new battery (P/N 581-86-55710)
1. Keyswitch in the ON position, download the data
stored in the payload memory, or carry out the
memory card dump operation.
2. Turn the keyswitch to the OFF position.
3. Remove the four mounting screws holding the
payload meter in position and then pull the pay-
load meter out, away from the instrument panel
(Figure 6-7).
NOTICE - Be careful not to let dirt, metal or spare parts
to drop inside the controller at any time.
FIGURE 6-7. REMOVING PAYLOAD METER
Optional Equipment - Section 6
4. Remove the electrical connector. Remove the
screws on the top surface and the rear face.
Remove the cover (Figure 6-8). This will expose
the battery, its wires, and the connector.
FIGURE 6-8. ACCESS TO BATTERY
5. Grasp the wires coming from the battery and pull
out. By pulling perpendicular from the board, it will
disconnect the connector from the board and pull
the battery out of its holder all at the same time
(Figure 6-9).
FIGURE 6-9. BATTERY INSTALLATION
6. Insert the connector of the new battery directly into
the connector on the board (Figure 6-10). Place
the battery in the battery holder, and pass the
wiring through the notch. When doing this, insert
the wiring into the bottom of the holder and pass
it through the notch.
7. Install the controller cover, replace the electrical
connector, and install the payload meter control-
ler back into the instrument panel.
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