Chapter D
Adjustment mode
Chapter D
D-3 Moment / Load Radius Adjustment Perform the moment adjustment / load radius adjustment according to the description below. Measurement condition: 1. Perform all the adjustments with the outrigger become fully extended. 2. The number of part-lines shall be the standard number of part-lines for boom full extension. - Select the moment adjustment of Adjustment main menu - Moment zero adjustment - Moment span preliminary adjustment / load radius adjustment - Moment span adjustment - Moment zero check When "Moment Adjustment" is selected in the adjustment main menu of Fig. 1.3.3, the detector adjustment screen appears on the LCD as shown in Fig. 3.1.1.
K: Deflection coefficient adjustment multiplication Wa: Actual load F: Distortion voltage (converted from elevate cylinder’s both side pressure) Zero: Input distortion at zero adjustment → Distortion voltage to be corrected Span: Input distortion at span adjustment → Distortion voltage to be corrected Fig. 3.1.1 Moment adjustment screen Note: - With the moment adjustment, be sure to set the boom angle by the boom lowering operation, and always wait until the distortion voltage becomes stable before starting the adjustment. - Under the moment adjustment status, pressing the check < > key performs the compulsory unload output. - During compulsory unload output, the buzzer of display control section is sounded intermittently with a long duration to notify that the compulsory unload output is in progress. During this period, the distortion voltage can be stabilized quickly when the boom lowering operation is performed. - When the check < > key is pressed again, the status returns to the normal control.
Revised Oct. 2015
D - 15
W301-0471E
