Cha pte r D
Adjustment mode
Cha pte r D
4.4 Elevating / Telescoping Output Adjustment The adjustment of elevating output and telescoping output is performed automatically. Perform the operation according to the guidance message. In the screen shown in Fig. 4.1.1, select "Boom up," "Boom down," or "Boom retract," then pressing the <
> key changes the screen to the elevating / telescoping output
adjustment display shown in Fig. 4.4.1, and the guidance message appears. To go back to the valve adjustment item selection of Fig. 4.1.1 without storing the adjustment value, press the <
> key while the
adjustment is being displayed.
Fig. 4.4.1 Elevating output adjustment display The guidance messages and operation examples for the boom up output adjustment are shown below. Elevate down!
Before the measurement, a message is displayed. According to the message, perform the boom lowering operation until the message disappears.
Press set key
Press the <
Engine Max, JS Max
> key to start the adjustment.
If the control lever is in the neutral position when the < > key is pressed, the message shown on the left is displayed. Raise the engine speed to the maximum, and perform a boom up full lever operation. The measurement will start automatically. When the control lever is not in the neutral position, the message "JS neutral" appears. Return the lever to the neutral position.
30.0° (15.0°) 9.8 m 180 20
Maintain the operating states of full lever stroke and of maximum engine speed. During the measurement, the guide message disappears, and the current output status is displayed. The displayed items are as follows from the top: boom angle; boom length; D/A command value; cylinder speed. The item in the parentheses indicates the crane condition change amount since the start of measurement. When the stroke end nears, the message "Elevate down!" appears. When it appears, stop the boom up operation, and lower the boom.
Finish !
When the measurement and storage are completed, the message on the left appears. Return the control lever to neutral, and the screen for valve adjustment item selection shown in Fig. 4.1.1 appears again.
D - 22
W301-0471E
