JLG G12-55A AccuPlace Service Manual - Manual (Page 219)

9.101 G10-55A & G12-55A AccuPlace
Electrical System
BOOM ANGLE
SENSOR RIGHT –
OUT OF RANGE
LOW 8457 Calibrated Right Boom
Angle less than -15° for more
than 2 seconds. Y Check that sensors are securely mounted
and not damaged or bent. Verify all
hardware is tight. Lift boom through range
to verify Right Boom Angle tracks
smoothly via Analyzer under Diagnostics/
Boom Components.
If tracking appears to be slightly off,
calibrate boom angle sensors. Refer to
Section 9.15.5, “Calibrations.”
Disconnect sensor, turn power on, and
verify +12V between power and ground
pins. Also, with power off, verify that the
ground pin has less than 1.0ohms
resistance to a good chassis (B-)
connection. Turn power off, reconnect Lift
Valve, and power on. If fault still exists,
unplug connector to Right Boom Angle
sensor and verify the connectivity in the 3-
pin AMP connector. Remove the wedge
and pull each termination back past the
rubber seal. Lightly tug on each wire and
inspect the crimp.
BOOM ANGLE
SENSOR RIGHT –
OUT OF RANGE
HIGH 8458 Calibrated Right Boom
Angle greater than +85° for
more than 2 seconds. Y Check that sensors are securely mounted
and not damaged or bent. Verify all
hardware is tight. Lift boom through range
to verify Right Boom Angle tracks
smoothly via Analyzer under Diagnostics/
Boom Components.
If tracking appears to be slightly off,
calibrate boom angle sensors. Refer to
Section 9.15.5, “Calibrations.”
Disconnect sensor, turn power on, and
verify +12V between power and ground
pins. Also, with power off, verify that the
ground pin has less than 1.0ohms
resistance to a good chassis (B-)
connection. Turn power off, reconnect Lift
Valve, and power on. If fault still exists,
unplug connector to Right Boom Angle
sensor and verify the connectivity in the 3-
pin AMP connector. Remove the wedge
and pull each termination back past the
rubber seal. Lightly tug on each wire and
inspect the crimp.
Help Message
1
DTC Fault Condition
(for configurable items,
fault applies only if
configured)
Fault
Requires
AccuPlace
Reset?
Action(s)