Electric Motor - JLG TOUCAN 10E Service And Maintenance Manual

7-7 Electric Motor

DTC FAULT MESSAGE
MASTER MODULE CAPACI-
7721
TOR BANK FAULT
SLAVE MODULE CAPACITOR
7722
BANK FAULT
RIGHT MOTOR FEEDBACK
7723
FAILURE
LEFT MOTOR FEEDBACK
7724
FAILURE
PUMP MOTOR - NOT
7725
RESPONDING
RIGHT MOTOR OUTPUT - OUT
7726
OF RANGE HIGH
LEFT MOTOR OUTPUT - OUT
7727
OF RANGE HIGH
RIGHT MOTOR OUTPUT - OUT
7728
OF RANGE LOW
LEFT MOTOR OUTPUT - OUT
7729
OF RANGE LOW
PUMP MOTOR OUTPUT - OUT
7730
OF RANGE HIGH
PUMP MOTOR OUTPUT - OUT
7731
OF RANGE LOW
31210090
DESCRIPTION
The power capacitor bank of the power
module is not charging properly at star-
tup.
The power capacitor bank of the power
module is not charging properly at star-
tup.
The right motor voltage feedback circuits
are damaged (Master Module).
The left motor voltage feedback circuits
are damaged (Slave Module).
The pump motor feedback is not respond-
ing when the pump is being driven (by the
Master Module).
The right motor voltage output is higher
than expected (Master Module).
The left motor voltage output is higher
than expected (Slave Module).
The right motor voltage output is lower
than expected (Master Module).
The left motor voltage output is lower than
expected (Slave Module).
The pump motor voltage output is higher
than expected (driven by the Master Mod-
ule).
The pump motor voltage output is lower
than expected (driven by the Master Mod-
ule).
– JLG Lift –
SECTION 10 - DIAGNOSTIC TROUBLE CODES
• Ensure that no external device is connected to the
batteries. Refer to a qualified JLG mechanic to
know the approved options on the machine.
• Check battery, power cables and connections.
• Ensure that no external device is connected to the
batteries. Refer to a qualified JLG mechanic to
know the approved options on the machine.
• Check battery, power cables and connections.
• Check the right motor power wiring and connec-
tions.
• Check the left motor power wiring and connections.
• Check the pump motor power wiring and connec-
tions.
• Check the pump motor for proper impedance.
• Check the right motor power wiring and connec-
tions.
• Check the motor phase to phase impedance.
• Check the motor phases for proper insulation with
the chassis.
• Check the right motor power wiring and connec-
tions.
• Check the motor phase to phase impedance.
• Check the motor phases for proper insulation with
the chassis.
• Check the right motor power wiring and connec-
tions.
• Check the motor phase to phase impedance.
• Check the motor phases for proper insulation with
the chassis.
• Check the line contactor contact.
• Check the left motor power wiring and connections.
• Check the motor phase to phase impedance.
• Check the motor phases for proper insulation with
the chassis.
• Check the line contactor contact.
• Check the pump motor power wiring and connec-
tions.
• Check the pump motor for proper impedance.
• Check the pump motor connections for proper
insulation with the chassis.
• Check the pump motor power wiring and connec-
tions.
• Check the pump motor for proper impedance.
• Check the pump motor connections for proper
insulation with the chassis.
• Check the line contactor contact.
CHECK
10-17