COVER ASSEM. 6J4216 - Caterpillar

Zero Function
The Zero function is used to adjust for changes in the empty bucket weight due to bucket wear or excess material stuck in the bucket. The operator should perform a zero in accordance with the following:
A regular basis
Prompt on the displayA zero of the system is performed to improve the accuracy of the Payload Control System (PCS).Zero Messages
Zero messages instruct the operator to perform a zero lift. The zero lift is performed to correct the following:
Changes to the material that is in the bucket
Changes in the hydraulic oil temperatureThe zero messages are displayed only between trucks. Details for each message are shown below:Perform Zero - Zero Timer Expired
This message is displayed when the following occurs:
The machine has been running for more than 5 minutes and the PCS has not been zeroed
More than 4 hours passed since a zero was performed Perform Zero - Hydraulic Oil Temp Changed
This message is displayed when the following occurs:
The PCS has detected a significant change in oil temperature
The change occurred since the previous zero was performed If any of the above two messages are displayed on the screen, perform the following to perform a zero lift:Zeroing the Bucket
Press the "OK" button to acknowledge the message.
Empty the bucket.
Rack back the bucket to the stops.
Lower the bucket to the ground.
Hold the throttle steady at a normal operating engine speed.
Ease the lift lever into the DETENT position and allow the lift lever to kick out.Note: When the bucket has reached the end of the weigh range, a small weight may be displayed on the screen. This value will vary depending on the oil temperature, the amount of material that is left in the bucket, and the condition of the linkage.
Press the Clear/Zero button on the keypad, and hold the button until the "Zero Accepted" message is shown.
Press the "OK" button once to return to the previous screen.The "Shake Out Bucket" screen is displayed when the following occurs:
Zeroing is not accepted
Displayed weight is greater than the calibrated weight by at least 15%Note: If the "Shake Out Bucket" screen is displayed, make sure that the bucket is cleaned out. When the bucket is sufficiently empty, lift the empty bucket again.Clear Function
The clear function allows the operator to clear the display without storing data into the ECM memory. The Clear/Zero key is on the keypad. Press the Clear/Zero key to achieve the following:
Reset the bucket weight to zero.
Reset the truck weight to zero.When the clear button is pressed, the following will occur:
The bucket weight and the truck weight will show "0.00" on the display.
A new weigh cycle can be started.Note: If storing the truck weight data into memory is desired, the clear function should not be used. Once the display has been cleared, the data cannot be stored or recovered. The store switch must be used to store data to memory.