PUMP AS-WATER 1077752 - Caterpillar

Bucket Zero Adjustment
Perform the "Bucket Zero Adjustment" calibration daily or when one of the following conditions apply:
The "bucket Zero Interval" has expired
The work tool is changed
A calibration alert is displayed on the monitor
A calibration of the "Boom Single Operation" and "Front Multi Operation" has been performed.In order to perform the "Bucket Zero Adjustment" calibration:
Navigate to the "Work Tool Select" menu. Refer to "Cat Production Measurement Menu Screen".
Select the work tool.
Press the "Calibrate" function key.
Use the keypad in order to select "Bucket Zero Adjustment" . Press the "OK" function key in order to start the calibration.Note: The "Bucket Zero" function key can also be selected from any screen in order to open the "Bucket Zero Adjustment" menu.
Illustration 43 g03842147
Follow the instruction on the monitor screen and refer illustration 43 in order to:
Calibrate the weight of an empty bucket. Gradually raise and swing the bucket at least 90 degrees to simulate truck loading. Each calibration requires five cycles in order to complete the "Bucket Zero Adjustment" calibration.
Table 3
Log Failed Message Reason / Required Operation
Boom is too high Please retry this cycle from initial position with care likeStart Boom operation from lower position.
Raise Boom more slowly.
Swing operation time is too short. Please retry this cycle from initial position with care likeMaintain swing speed slower and longer time.
Bucket is not level. Please retry this cycle from initial position with care likeMaintain the bucket angle similar to loading operation (Carry position).
Boom operation is too slow. Calibration timeout.Please retry this cycle from initial position with care like
Raise Boom faster.
Start Boom operation from lower position. Simple calibration will adjust the system calibration to match a reference scale. Simple calibration can be performed on as few as 1 or as many as 15 trucks. The more trucks used, the better the calibration will be fine-tuned. The recommended number of trucks for most applications is 5.Note: The simple calibration update cannot be performed unless the operator presses the store button after each truck load. The simple calibration truck list is remained when the machine is keyed off.
A new simple calibration erases all prior simple calibrations.
Only the latest simple calibration on one or more trucks is used to fine-tune the scale system.
Once a simple calibration is started, additional trucks may be adjusted in the simple calibration until a new truck is stored.
A simple calibration will begin adjusting the next weight measurement, but will not affect any weights previously measured.
For best results, the system should be zeroed when requested through the display.Simple calibration adjustment method is
W = (WR - Z)*AWhere:W - Adjusted and Zeroed WeightWR - Raw WeightA - Adjustment Factor* Adjustment Factor = Σ(Last 15 Scale Weight) / Σ(Last 15 Raw Payload)Z - Zero Weight
To Perform a "Simple Calibration", recordThe weight of the trucks at the scale house.The weight that is displayed by the scale system for the trucks.A recent tare weight of the trucks being used for the simple calibration.
Illustration 44 g06023396
Go to Main Menu > Work Tool Select >Weighing Calibration and select "Simple Calibration" and push "OK" key.
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