• Boom / Bucket angle calibration
- MCU get sensing signal from boom angle
and bell crank angle and calculate bucket
cylinder stroke and boom link position an-
gle from ground real time basis.
- Boom angle position and bucket cylinder
stroke is set by detent setting switch on
monitor.
- Individual setting position is done by lever
(detent, release operation).
- Angle sensor calibration is basically car-
ried out before delivery of the machine.
When angle sensor is replaced or actual
value is different compared to setting val-
ue, this function can be done.
- The calibration must be carried out as fol-
lows :
a. Lower the boom at maximum low po-
sition and press NEXT button or (bucket must be max tilting position).
b. Raise boom at maximum high position and press NEXT button (or ).
c. Position boom at -5° and press NEXT button (or ).
d. Retract bucket cylinder length (to minimum position) at -5° boom position and press
NEXT button (or ).
e. Extend bucket cylinder length (to maximum position) at -5° boom position and press
NEXT button (or ).
f. In case above steps are carried normally, "Calibration is done" message is shown. Then
angle sensor calibration is finished.
Boom down / boom up / bucket position setting: Refer to page 4-20.
• Boom pressure calibration
- Press START button after following the instruction.
- After a few minutes, "Calibration failed" or "Calibration completed" message will be shown.
Press OK button then process be ended.
Using button
- Using instead of NEXT, complete button.
Bell crank angle
Boom angle
Bucket cylinder stroke
Detent setting switch
3-29
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