2.30 ELECTRICS NOTE: If the display module is in the calibrate mode and push button (19) is pressed, the display module will return to the normal operate mode. 3. Wait approximately 15 seconds. Briefly ! press the push button (18) marked and release. This will store the current load as the zero calibration point. Green indicator (7) must illuminate for two to three seconds. Also the audible alarm must sound once to indicate that the correct zero calibration point has been set. The display module should then revert to the calibration mode. The green indicator (7) and the red indicator (16) must flash quickly. NOTE:
When the zero calibration point is set, the 100% calibration point is set to a low value. This will cause the audible alarm to sound continuously if the 100% calibration point is not set in the following steps of this procedure. 4. Pick up an appropriate work tool. The work tool must be of the type that will allow a load heavy enough to tip the machine forward. 5. Refer to the appropriate load chart. Pick up a load. NOTE: The load must be heavy enough to just tip the machine when the boom is fully extended in order to obtain the correct calibration. 6. Extend the boom. Keep the bottom of the coupler 150 mm (6in.) above the ground. Continue to extend the boom until the machine tips forward.
The rear wheels must be just off the ground. 7. Wait approximately 15 seconds until the machine is not rocking. NOTE: The machine must not be rocking or vibrating. 8. Press the push button (21) marked “SPAN+%” and release. A value of 100% is then set. This is calculated from the current load which is assumed to be 110%. Only the red indicator (17) must illuminate for approximately two to three seconds. Also the audible alarm must sound three times. After these warnings the display module should revert to the calibrate mode. Green indicator (7) and red indicator (16) must flash.