Chapter D
Chapter D
Adjustment mode
168
W301-0411E
3.3 Swing Output Adjustment (Characteristics Measurement Method)
The offset method keeps only the stop points in memory, so it may fail to decelerate the crane smoothly in some
direction clockwise and counterclockwise. To achieve smooth deceleration, characteristics measurement method
is used for adjustment of the outputs. With the crane set in the specified configuration for measurement (the
crane is set level on extended outriggers; the engine speed is maximum; the swing lever is shifted to the full
stroke), the degree of change of the swing speed according to the current output to the proportional solenoid
valves is measured. Not only stop points of the swing table but the starting point of deceleration and the data
during deceleration are measured and kept in memory. The characteristics measurement method smoothly
decelerates and stops boom swing on the basis of these measured characteristics.
Applicable model: GR-750XL-2, GR-1000XL-2
Reference data: E-4 AML Input/Output List, 1.Digital input (1) #17200, No.80
In the valve adj. item selection screen shown in Fig. 3.1.1, select "Swing right" or "Swing left," then press the
<
> key to display the swing output adjustment display of Fig. 3.3.1.
Fig. 3.3.1 Swing output adjustment initial screen
3.3.1 Adjustment Procedure
With the screen of Fig. 3.3.1 displayed, press the <
> key to change the display to the screen shown in Fig.
3.3.2.
Fig. 3.3.2 Swing output adjustment preparation screen
- After setting the posture to the specified one, set the engine speed to the maximum, and then perform
a full lever operation to start the measurement.
[Attention]
Remember that the measurement will be started as soon as the lever is operated, even if the crane condition
differs from the specified crane condition.
When the measurement is started unexpectedly, leave the lever at the neutral position to terminate the
measurement. Subsequently, start the process again from the status indicated in Fig. 3.3.1.
