Komatsu WA320-5H Operation & Maintenance Manual page 292

ATTACHMENTS, OPTIONS
The amount remaining in the bucket is 3.5 tons.
The target load is 2.0 - (5.0 - 3.5) = 0.5 tons
The next target load of 0.5 tons is displayed.
REMARK
If 2.2 tons is loaded when the target load is 2.0 tons, and the
amount remaining in the bucket is displayed as 2.8 tons (5.0 -
2.2), the target load has been exceeded, so the alarm buzzer
sounds.
At the same time, "TARGET OVER" is displayed on the charac-
ter display.
Push the load meter cancel switch to stop the alarm buzzer.
Note that the alarm buzzer does not stop when the starting
switch is turned to the OFF position.
8. Load the target of 0.5 tons from the 3.5 tons loaded in the bucket.
9. After loading, lower the lift arm and then raise it again in order to weigh the amount remaining in the bucket.
The amount remaining in the bucket is weighed and displayed.
10. The amount remaining in the bucket is 3.1 tons.
The target load is 0.5 - (3.5 - 3.1) = 0.1 tons
11. To start the next loading operation, press the load meter
subtotal switch to complete the 1st loading operation.
12. At this point, the amount remaining in the bucket (3.1 tons)
is subtracted from the target load for the next loading oper-
ation, and the result (8.9 tons) is displayed as the target
load.
The amount remaining in the bucket is 3.1 tons.
12.0 - 3.1 = 8.9 tons, so 8.9 tons is displayed as the next
target load.
MACHINE MONITOR WITH LOAD METER
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