Komatsu — 31.4.2 MEASURING REMAIN

OPTIONS, ATTACHMENTS Use the REMAIN display (4) in conjunction with the lower display panel (6) to adjust the bucket load.Tilt the bucket back after loading it. After placing the boom to the horizontal position, lower the boom to a point midway between horizontal and the ground. Raise the boom until the buzzer sounds, indicating the measurement is complete. The amount inside the bucket will be subtracted and the amount remaining will be displayed. The amount indicated on the REMAIN display (4) and the weight indicated in the lower display (6) can be used to judge how much of the load that should be dumped into the truck.

If the values in the REMAIN display (4) and the lower display panel (6) are close and the entire bucket load is dumped into the dump truck, press the SUBTOTAL switch after dumping the load. The print out will indicate the amount loaded into the truck. Press the CAL switch (5) to erase the data. The amount in the REMAIN display (4) will prepare the operator for the next load. If the value in the REMAIN display (4) is about zero (0) tons, the target amount is completed. Press the SUBTOTAL switch (7) to print the data. However, if the amount exceeds the target production, the buzzer sounds and a negative value appears in the REMAIN display (4), indicating an excess load.

No further measurement will be taken. Press the SUBTOTAL switch (7) to print the data for the amount dumped into the truck. When pressing the SUBTOTAL switch (7), any remaining load in the bucket can be loaded into the next dump truck. The amount remaining in the bucket is displayed in the lower display panel (6) for 15 seconds. This data is stored in memory for the first bucket load for the next dump truck. Thus, if the target production amount is not changed, continuous work can be performed. For example, when two and one-half buckets are loaded onto one dump truck, the remaining one-half bucket can be loaded onto a second dump truck.

However, if the amount remaining in the bucket is not needed, the load can be tipped out and the cancel button, which is at the tip of the knob on the work equipment control lever, pressed after pressing the SUBTOTAL switch (7). If the target amount is exceeded, the REMAIN display (4) will show a negative amount, and 3 seconds later the previous display will flash. In addition, the lower display panel (6), which normally displays 0 tons for 15 seconds after the measurement is displayed, will continue to display the weight inside the bucket.

Failing to press the SUBTOTAL switch (7) before raising the boom with a load remaining in the bucket, the load meter interprets this situation as abnormal. The buzzer will sound intermittently and the lower display panel (6) will flash — and no measurement can be performed. Press the CAL switch (5) once to display the target production amount in the REMAIN display (4) and zero (0) in the lower display panel (6). REMARK To ensure precise measurement, raise the boom and keep the boom control lever fully open until the buzzer sounds, indicating the measurement is complete. After the buzzer sounds, dump the load. WA450-3MC 5-22