Service Manual Instruction Manual

SECTION 6 - JLG CONTROL SYSTEM
6-126 – JLG Lift – 3121171
Table 6-12. Load Moment Pin Troubleshooting: Moment Pin Horizontal Force Out of Range
STEP FAULT CODE/SYMPTOM REPAIR YES NO
1 8/6 MOMENT PIN HORIZONTAL FORCE OUT
OF RANGE The horizontal force is out of
allowed range.
Check to see if the platform is
overloaded in the vertical
position. Check the rated
capacity requirement.
Remove excess we ight G o to step 2
2 Check to see if any additional
accessories have been added
to the platform without
proper calibration.
Perform the Boom Sen-
sor calibration process.
Go to ste p 3
3 Perform the BCS daily check
procedure to make sure the
boom sections are stopping
correctly at the witness
marks matching their capac-
ity selection.
Go to step 4 Per form t he B oom Sen -
sor calibration process.
4 Inspect the job the machine
is performing, making sure
that there is no additional
force applied when the
boom sections are in the hor-
izontal position. Also con-
sider weather conditions
(Wind).
Go to step 5 Position machine cor-
rectly.
5 Use the Analyzer, scroll to the
DIAGNOSTICS menu, press
EN TER, th en scroll to th e
MOMENT menu, and press
ENTER, check to see if Actual /
Over / Under moment values
are registering on the screen
display.
Go to step 6 Replace the load
moment pin. & Perform
the Boom Sensor cali-
bration process.
6 If they are, try boom sensor
calibration to see if the values
come within the chart.
If the problem still
exists, verify steps 1-6
again before contact-
ing the JLG Service
Dept.
Replace the load
moment pin. & Perform
the Boom Sensor cali-
bration process.