JLG G12-55A AccuPlace Service Manual - Manual (Page 222)

Electrical System
9.104 G10-55A & G12-55A AccuPlace
FORK POSITION
SENSOR - NOT
DETECTING
CHANGE 8469 Controls determine slow
response to commands. Not
reported if cab joystick not
commanding motion. Y If not tracking well calibrate fork sensor.
Refer to Section 9.15.5, “Calibrations.”
BOOM LIFT
OVERSPEED 8470 Controls determine too fast
boom motion for commands.
Not reported if cab joystick
not commanding motion. Y Fault generally occurs for an overrunning
load or when the machine is used outside
of its intended operating parameters.
Cycle power to see if fault clears.
If fault still exists after motion is
commanded, check integrity of Boom
Angle sensors.
TELESCOPE
OVERSPEED 8471 Controls determine too fast
Telescope motion for
commands. Not reported if
cab joystick not commanding
motion. Y Fault generally occurs for an overrunning
load or when the machine is used outside
of its intended operating parameters.
Cycle power to see if fault clears.
If fault still exists after motion is
commanded, check integrity of Boom
Length sensor.
FORK
OVERSPEED 8472 Controls determine too fast
boom motion for commands.
Not reported if cab joystick
not commanding motion. Y Fault generally occurs for an overrunning
load or when the machine is used outside
of its intended operating parameters.
Cycle power to see if fault clears.
If fault still exists after motion is
commanded, check integrity of Fork
Position sensor.
WRONG LIFT
RESPONSE 8414 Controls determine motion
direction opposite the
commanded direction for
more than 1 second. Not
reported if cab joystick not
commanding motion. Y Fault may indicate improper electrical or
hydraulic connections after a repair.
Cycle power to see if fault clears.
If fault still exists after motion is
commanded, check connections and
integrity of Boom Angle sensors.
WRONG
TELESCOPE
RESPONSE 8413 Controls determine motion
direction opposite the
commanded direction for
more than 1 second. Not
reported if cab joystick not
commanding motion. Y Fault may indicate improper electrical or
hydraulic connections after a repair.
Cycle power to see if fault clears.
If fault still exists after motion is
commanded, check connections and
integrity of Boom Length sensor.
Help Message
1
DTC Fault Condition
(for configurable items,
fault applies only if
configured)
Fault
Requires
AccuPlace
Reset?
Action(s)