JLG 1230ES Operation And Safety Manual page 81

2-5 Function Prevented
DTC FAULT MESSAGE
254 DRIVE & LIFT UP PREVENTED - CHAR-
GER CONNECTED
255 PLATFORM OVERLOADED
256 DRIVE PREVENTED - POTHOLE NOT
ENGAGED
257 ELEV PROX PERMANENTLY CLOSED -
CHECK PROX AND ANGLE ADJUSTMENT
258 DRIVE & LIFT PREVENTED - BRAKES
ELECTRICALLY RELEASED FOR TOWING
3121221
SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
DESCRIPTION
Drive or lift is not possible while the vehicle
is charging AND is configured to prevent all
motion.
The load sensing system measured platform
load is excessive.
Driving is not possible while elevated since
the pot-hole protection system failed to
deploy.
The elevation proximity switch shows the
platform to be stowed, while the elevation
angle sensor shows the platform to be
raised. The elevation proximity switch is
only found on certain older lifts. This switch
is not used on current machines so this DTC
should not occur.
Manual brake release mode is activated
with the switch in the battery box near the
ground control box. Drive or lift is not possi-
ble.
– JLG Lift –
CHECK
• 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.
Refer problem to a qualified JLG mechanic.
• Push manual brake release switch again or cycle power to clear manual
brake release mode.
• Check if the brake release switch is obstructed or jammed.
Refer problem to a qualified JLG mechanic.
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