OPTION AR-GUARD 3363372 - Caterpillar

Calibration Steps
Preliminary Procedures
The following steps briefly describe the calibration procedure. A more detailed description is included in the service manual. See Service Manual, SENR6614, "Payload Control System (PCS)" for more information. The steps that are used for calibration will be shown on the display of the payload control system. For all calibration, the bucket must be in the fully tilted back position. Warm up the machine. Ensure that the kickouts are set for the maximum height.Note: Set the display for the weights before you start the calibration. The display for the weights can be ENGLISH or metric.Note: The kickout should be adjusted in order to ensure that weighing is completed prior to the start of kickout.Note: The 988G has an automatic tilt feature. This tilts the bucket forward slightly at the top of the lift range. This feature can interfere with the calibration. Use the following procedure in order to place the bucket in the proper position for calibration on the 988G only. This procedure can be used for a full bucket or for an empty bucket. These instructions are not for setting the zero offset. For all other machines, proceed directly to the calibration procedure.
Lower the bucket to ground level. Fully rack back the bucket.
Lift the bucket to the maximum height. Hold the lift lever for approximately five to ten seconds. This will allow the automatic tilt feature to tilt the bucket forward slightly to the desired position.
Lower the bucket to the ground without changing the position of the bucket. The bucket is now in the correct position for calibration. Do not change the tilt position of the bucket for the remainder of the calibration. You may now proceed with calibration.Calibration Procedure
CALIBRATE THE LIFT ARM POSITION SENSOR. This is the first step in the calibration. Place the bucket on the ground. Fully rack back the bucket. Press the "STORE" button. Then raise the bucket to the highest possible position of the lift arm and then press "STORE". Acceptable ranges for the lift arms at the lowest position are from 6500 to 22000. Acceptable values with the lift arm at the highest position are from 44500 to 61600.
CALIBRATE AN EMPTY BUCKET. During this step, the operator will be instructed to lift an empty bucket. The bucket should be fully racked back. The operator