JLG 1250AJP Troubleshooting Manual page 313

Potential Calibration Failure Messages:
• TWR NOT UP - control system detected movement of
tower lift cylinder angle sensor during tower telescope
movement (tower cylinder angle sensor read more than
665 counts during tower telescope). Visible through
ACCESS LEVEL 1 ? DIAGNOSTICS ? BOOM SENSORS
? TOWER CYLINDER ANGLE A/D: XXXXX.
• TWR LEN FAULT - control system did not detect change
in state of tower transport length switch within 1 to 7
inches (2.5 to 17.8 cm) of movement using raw length
sensor data.
• TWR LEN1 FAULT - raw top (#1) length sensor A/D
counts not between 28267 and 29245. Visible through
ACCESS LEVEL 1 ? DIAGNOSTICS ? BOOM SENSORS
? TOWER LENGTH 1 A/D: XXXXX.
• TWR LEN2 FAULT - raw bottom (#2) length sensor A/D
counts not between 28577 and 29555. Visible through
ACCESS LEVEL 1 ? DIAGNOSTICS ? BOOM SENSORS
? TOWER LENGTH 2 A/D: XXXXX.
• TWR L SW FAULT - control system did not detect
change in state of tower transport length switch within
tower length readings of 303.9" and 308.9" (771.9 and
784.6 cm)
3128411
Step 6 - Position 6
The analyzer will read:
Lift main boom to max angle
1250AJP
SECTION 5 - CALIBRATIONS
5-313