Load Pin Sensor Fault; Load Pin Vertical Force Out Of Range; Load Pin/Tower Lift Cylinder Angle Disagreement; Load Sensor Not Calibrated - JLG 1250AJP Troubleshooting Manual

SECTION 1 - FAULT DICTIONARY AND SELECTED TROUBLESHOOTING
Note Pretest Instructions
1.170.3 Perform 5.8 Boom Sensor
Calibration on Pg. 309.

1.171 LOAD PIN SENSOR FAULT

Flash Code: 8-5
Load pin sensor fault. This fault is reported when any load pin fault(s) other than the over range and under range faults are
detected. Check the fault log for the specific fault: 1.165 LOAD PIN FORCE TOO LOW OVER MAIN ANGLE CHANGE on Pg.
95, 1.166 LOAD PIN FORCE TOO LOW OVER MAIN LENGTH TRANSITION on Pg. 95, 1.167 LOAD PIN FORCE TOO LOW
OVER TOWER ANGLE CHANGE on Pg. 95, 1.168 LOAD PIN FORCE VALUES NOT CHANGING on Pg. 95, 1.170 LOAD PIN
NOT CALIBRATED on Pg. 95, or 1.173 LOAD PIN/TOWER LIFT CYLINDER ANGLE DISAGREEMENT on Pg. 96. Refer to the
troubleshooting for that fault.

1.172 LOAD PIN VERTICAL FORCE OUT OF RANGE

Flash Code: 8-5
Load pin vertical force out of range. The Y component of the load pin has been out of range, greater than +125,000 lbs or
less than -125,000 lbs, for at least 1.0 second. This fault also invalidates the current load pin calibration. There may be a
problem with the load pin or its mounting. See 5.8 Boom Sensor Calibration on Pg. 309.

1.173 LOAD PIN/TOWER LIFT CYLINDER ANGLE DISAGREEMENT

Flash Code: 8-5
Load pin/tower lift cylinder angle disagreement. This fault is reported if the force magnitude is greater than 50000 lbs and the
angle of the load pin force vector and the tower lift cylinder angle sensor reading disagree by 20° for 5 seconds. This fault
also invalidates the current load pin calibration. There may be a problem with the load pin or its mounting or the tower cylin-
der angle sensor or its wiring. Check for other load pin or cylinder angle faults in the fault log. See 5.8 Boom Sensor Calibra-
tion on Pg. 309.

1.174 LOAD SENSOR NOT CALIBRATED

Flash Code: 8-2
Load sensor not calibrated. The load sense system (LSS) sensors require calibration. See the calibration procedure in the
LSS manual for more details.

1.175 LOAD SENSOR READING UNDER WEIGHT

Flash Code: 0-0
Load sensor reading under weight. The load sensor is reading 20% or more under the calibrated zero point. This fault may
occur if the basket is resting on the ground. Not reported during the 2 second power-up.
Note Pretest Instructions
1.175.1 Safely ensure basket is not
resting on anything.
1.175.2 Perform 5.8 Boom Sensor
Calibration on Pg. 309.

1.176 LOW OIL PRESSURE

Flash Code: 4-3
Low oil pressure. This fault should only occur on machines configured with non-ECM engines. Notification that the oil pres-
sure input [X001.15] is below 8 PSI and the engine has been running for at least 10 seconds.
1-96
Test
Does it calibrate successfully?
Test
Does fault clear?
Does calibration complete successfully?
1250AJP
Result Corrective Action
Yes Troubleshooting complete
No Troubleshoot in accordance with calibration fault.
Result Corrective Action
Yes Troubleshooting complete
No Go to step 1.175.2
Yes Troubleshooting complete
No Troubleshoot according to calibration fault
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