Manitowoc National Crane NBT30H-2, Service Manual

Page: 88 / 194

ELECTRIC SYSTEM NBT30H-2 SERVICE MANUAL
3-20
03-20-2019 Control # 613-06
Select the slew angle icon from the Slew Sensor
Calibration Menu screen to begin the slew angle calibration,
Figure 3-13.
Slew Sensor Calibration
Calibration positions are shown one at time on the Slew
Sensor Calibration screen starting with Center Boom over
Boomrest. Once the superstructure is positioned and
confirmed, the next calibration position will be activated.
- Rotate the superstructure to the Center Boom Over
Boomrest position.
- Press the checkmark to confirm.
- Rotate the superstructure Clockwise 90° from the
boomrest.
- Press the checkmark to confirm.
- Rotate the superstructure Counterclockwise 90°
from the boomrest.
- Press the checkmark to confirm.
If the RCL system determines the sensor is not within the
established range, an error screen will appear. The sensor
m u s t b e m e c h a n i c a l l y z e r o e d , ( R e f e r e n c e
S l e w
Potentiometer Adjustment , page 6-13).
Pressing Button #2 will reset the calibrated values
for the slew sensor.
Boom Angle Sensor Calibration
Level and set-up the truck on outriggers and level before
starting the boom angle calibration procedure. The boom
angle needs to be measured accurately with an inclinometer
to do an accurate calibration.
Select the boom angle icon from the Boom Angle Sensor
Calibration menu to start the boom angle calibration,
(Figure 3-14).
Boom Angle Sensor Calibration
Calibration positions are shown one at a time on the Boom
Angle Sensor Calibration screen starting with the 0° position.
Once the boom is positioned and confirmed, the next
calibration position will be activated.
- Move boom to 0° position.
- Press the checkmark to confirm.
- Move boom to 40° position.
- Press the checkmark to confirm.
- Move boom to 65° position.
- Press the checkmark to confirm.
If the RCL system determines the sensor is not within the
established zero range, an error screen will appear. The
sensor will then have to be mechanically zeroed.
Pressing Button #2 will reset the calibrated values
for this sensor.
Boom Length Sensor Calibration
Level and set-up the truck on outriggers before starting the
boom length sensor calibration procedure.
Select the boom length icon from the
Boom Length Sensor
Calibration
menu screen, (Figure 3-15) to start the boom
length sensor calibration.
8717-34
FIGURE 3-13
8717-35b
8717-37 FIGURE 3-14