ELECTRICS 2.29 8. Install two screws (23) in order to secure the display module to cab side console. 9. Refer to “Calibration procedure” and calibrate system. Calibration When a new sensor has been installed, or when a new display module has been installed, the LSI system must be calibrated. When the system is calibrated, a zero point for the load is first set. The zero point is set when the boom coupler has no load fitted and the boom is lowered and fully retracted. A load is then fitted to the boom coupler and the 100% calibration point is set. Push buttons (19), (20) and (21) on the display module are used to set the calibration points.
Calibration procedure Use the following procedure to set the zero and 100% calibration points: Before proceeding with the calibration set up, ensure the following conditions are met: 1. The machine is parked on level ground. 2. Wheels are steered to the straight ahead position. 3. The boom is fully retracted. 4. The bottom of the coupler is 150 mm (6in.) above the ground. 5. A work tool is not installed on the coupler. 6. The engine is running and the parking brake is applied. The calibration procedure is as follows: 1. Remove the display module (1) from the cab side console in order to gain access to the push buttons (19), (20) and (21) that are required to calibrate the LSI.
Refer to “Procedure to replace the display module” for further information. 2. Briefly press the push button (19) marked “CAL” and release. This action will put the display module in the calibrate mode. Green indicator (7) and red indicator (16) should start to flash quickly.