Function Prevented - JLG 1930ES Operation And Safety Manual

2-5 Function Prevented

DTC FAULT MESSAGE
251 ELEV ANGLE SENSOR FAULTY - VOLT-
AGE OUT OF RANGE
252 ELEV ANGLE SENSOR HAS NOT BEEN
CALIBRATED
253 DRIVE PREVENTED - CHARGER CON-
NECTED
254 DRIVE & LIFT UP PREVENTED - CHAR-
GER CONNECTED
255 PLATFORM OVERLOADED
256 DRIVE PREVENTED - POTHOLE NOT
ENGAGED
3121655
SECTION 5 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
DESCRIPTION
There is a problem with the elevation
angle sensor input.
The elevation angle sensor has not been
calibrated.
Driving is not possible while the vehicle is
charging.
Drive or lift is not possible while the vehicle
is charging AND is configured to prevent all
motion.
The load sensing system measured plat-
form load is excessive.
Driving is not possible while elevated since
the pot-hole protection system failed to
deploy.
– JLG Lift –
CHECK
• Check that the platform elevation sensor is securely mounted and
undamaged.
Refer problem to a qualified JLG mechanic.
Refer problem to a qualified JLG mechanic.
• Check if the charger is connected to off board power source and discon-
nect if desired.
Refer problem to a qualified JLG mechanic.
• Check if the charger is connected to off board power source and discon-
nect if desired.
Refer problem to a qualified JLG mechanic.
• Remove excess weight from the platform.
• Check that the platform is not caught on something, preventing up or
down movement.
Refer problem to a qualified JLG mechanic.
• Check for obstructions or mechanical problems around the pot-hole pro-
tection mechanisms.
• Check that the PHP switches are securely mounted.
Refer problem to a qualified JLG mechanic.
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