Operator Manual User Manual

SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
3121221 – JLG Lift – 6-17
254 DRIVE & LIFT UP PREVENTED - CHAR-
GER CONNECTED
Drive or lift is not possible while the vehicle
is charging AND is configured to prevent all
motion.
• Check if the charger is connected to off board power source and discon-
nect if desired.
Refer problem to a qualified JLG mechanic.
255 PLATFORM OVERLOADED The load sensing system measured platform
load is excessive.
• 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.
256 DRIVE PREVENTED - POTHOLE NOT
ENGAGED
Driving is not possible while elevated since
the pot-hole protection system failed to
deploy.
• 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.
257 ELEV PROX PERMANENTLY CLOSED -
CHECK PROX AND ANGLE ADJUSTMENT
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.
Refer problem to a qualified JLG mechanic.
258 DRIVE & LIFT PREVENTED - BRAKES
ELECTRICALLY RELEASED FOR TOWING
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.
• 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.
2-5 Function Prevented
DTC FAULT MESSAGE DESCRIPTION CHECK