Boom up to the next correction angle, 45 degrees 
(range is 40°- 50°). When the boom angle is within 
the calibration range, the screen will add the  
  ‘CHANGE’, 
  ‘SET’ and  
  ‘OK’ text as shown on the left.  
 
Measure the boom angle with the inclinometer and 
when the boom is positioned in the calibration range, 
compare the measured angle to the displayed angle. 
 
If the indicated angle is within +/- 0.1 degrees of the 
measured angle, confirm with ‘OK’. Otherwise, select 
‘SET’ to adjust the angle. 
 
Once you push ‘SET’ , the screen is going to 
change to the angle adjustment screen. Use 
the ‘+’ and ‘-‘ buttons to adjust the indicated 
angle to match the measured angle.  
 
When the display shows the correct angle, 
press ‘OK’. 
 
boom angles.