JLG 1230ES, Руководство по обслуживанию и ремонту

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SECTION 8 - DIAGNOSTIC TROUBLE CODES
3121222 – JLG Lift – 8-17
777
OPEN CIRCUIT PUMP MOTOR
WIRING
Drive, Steer, and Lift Prevented
• The System Module measured pump current less than 8A while the
motor voltage was greater than 7V for 1200mS. This indicates there is an
open-circuit between the System Module’s –P terminal and the pump
motor.
• ZAPI - HEALTH (Status LED) - ON
778
TRACTION T HIGH - CHECK
POWER CIRCUITS
Drive, Steer, and Lift Prevented
• While driving, the voltage measured at the System Module’s T terminal
did not agree with the predicted value for at least 300mS. This issue may
be caused by a power wiring error or an internal fault.
• ZAPI - HEALTH (Status LED) - ON
779
TRACTION T LOW - CHECK POWER
CIRCUITS
Drive, Steer, and Lift Prevented
• While driving, the voltage measured at the System Module’s T terminal
did not agree with the predicted value for at least 1000mS. This issue
may be caused by an opencircuit of the armature wiring (+B and –T ter-
minals) or an internal fault.
• VMN does not increase more than 1.3V
• VMN is less than 20% Battery Voltage
• Battery Voltage . VMN is greater than 4V
• ZAPI - HEALTH (Status LED) - ON
7710
PUMP P HIGH - CHECK POWER
CIRCUITS
Drive, Steer, and Lift Prevented
• While steering or lifting up, the voltage measured at the System Module’s
P terminal did not agree with the predicted value for at least 240mS. This
issue may be caused by a power wiring error or an internal fault.
• Pump Feedback . Predicted >7V
• ZAPI - HEALTH (Status LED) - ON
7711
PUMP P LOW - CHECK POWER
CIRCUITS
Drive, Steer, and Lift Prevented
• While steering or lifting up, the voltage measured at the System Module’s
P terminal did not agree with the predicted value for at least 1000mS.
This issue may be caused by an open-circuit of the pump wiring (+BF2
and –P terminals) or an internal fault.
• Pump feedback does not increase more than 1.3V
• Pump feedback is less than 20% Battery Voltage
• Battery Voltage - pump feedback is greater than 4V
• ZAPI - HEALTH (Status LED) - ON
7741
ARMATURE BRAKING CURRENT
TOO HIGH
Drive, Steer, and Lift Prevented
• The System Module detected excessive braking current for more than
5000mS. This can be caused by transporting an excessive load on a steep
grade. Alternately, this may indicate an internal fault.
• ZAPI - HEALTH (Status LED) - ON
7742
FIELD VOLTAGE IMPROPER Drive, Steer, and Lift Prevented
• The System Module voltage at the F1 and F2 terminals was improper at
power-up (expected to be ½ Battery Voltage). This is caused by an open-
or short-circuit in the field wiring or motor. Disconnect the field and
motor wiring from the System Module and connect F1 / F2 with a short
wire. If the situation persists after a power cycle, it may be an internal
issue.
• ZAPI - HEALTH (Status LED) - ON
8-1 Tilt Sensor
DTC FAULT MESSAGE DESCRIPTION CHECK
811 TILT SENSOR NOT CALI-
BRATED The tilt sensor calibration has
not been performed. • Calibrate the tilt sensor, see Section 5.2.
• Replace then calibrate tilt sensor, see Section 5.2.
812 NO DATA FROM TILT
SENSOR - NOT CON-
NECTED OR FAULTY
No signal from tilt sensor.
• Check tilt sensor connections and wiring in ground control box.
• Calibrate the tilt sensor, see Section 5.2.
• Replace then calibrate tilt sensor, see Section 5.2.
7-7 Electric Motor
DTC FAULT MESSAGE DESCRIPTION CHECK