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W450769A 01/14
5. For each extension calibration, the system requires a stable measure of the moment (taken
from its own pressure sensors) and radius (taken from manual measurements) at both high
and low boom angles. Enter the corrected radius at this point per the number entry instruction.
6. Select angles of between 60° and 70° for high boom angles, and as close to zero degrees as
possible for low boom angles. Ensure accurate measurements of the radius at each
calibration point.
7. Upon entering the radius moment the system will prompt you start a new calibration.
8. Choose
Yes
to erase all existing calibration data and start a new calibration. Choose
No
to
allow calibration of certain radius moment points already in the system.
9. The first screen will ask that you enter the tare weight of the hook block. This weight is
normally located on a metal tag attached directly to the load bought. If the load block weighs
200 pounds it is usually advantageous to enter 100 pounds over the nominal weight. The
objective is to maintain a positive hook weight after the calibration is complete. Remember to
enter the load in tenths. For example: Enter 300 pounds as .300.
10. After the tare load is entered press
Exit
to enter the load into the calibration procedure.
11. After telescoping to the proper length and press
OK
. The system will prompt for high or low
boom angle. When the boom is properly positioned the system will recognize whether it is a
high or low boom angle.
12. You will then be prompted to enter high or low radius, this depends on the current boom
position. After entering the radius, press
Exit
to go to the next boom angle. If the first
measurement was done at low angle the system will automatically prompt to do high angle on
the next step.
13. After entering the second calibration point, press
Yes
to automatically save the information
into the computer memory. Press
No
to reject the entries and start over.
After saving the final calibration point the radius moment calibration is complete. Press the
Exit
button
will take you back to the main calibration menu. It is advisable at this point to select several points in
the boom length and checked radius and empty hook load at several different angles for each length
comparing these results against the display. Although the hook load will never be totally accurate it
should weigh a little heavy and be as consistent as possible. Consistency in the hook load is a sign of a
good radius moment.
USE THE SPACE PROVIDED IN APPENDIX A TO RECORD THE MEASUREMENTS.
TEST
SET
TEST
SET
