SECTION 5 – GENERAL SPECIFICATIONS AND MAINTENANCE
5-64
– JLG Lift–
4-6 Transmission and Drive System
6-6 Communication
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
4610
RIGHT SPEED SENSOR - NOT
RESPONDING PROPERLY
A problem has been detected with the right drive
motor speed sensor (encoder).
Refer problem to a qualified JLG mechanic.
4611
LEFT SPEED SENSOR - NOT
RESPONDING PROPERLY
A problem has been detected with the left drive
motor speed sensor (encoder).
Refer problem to a qualified JLG mechanic.
4612
RIGHT SPEED SENSOR - RPM
HIGH
Machine overspeed has been detected on the
right motor.
• The machine should be driven at limited speed in ramps.
Refer problem to a qualified JLG mechanic.
4613
LEFT SPEED SENSOR - RPM
HIGH
Machine overspeed has been detected on the left
motor.
• The machine should be driven at limited speed in ramps.
Refer problem to a qualified JLG mechanic.
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
6632
CANBUS FAILURE - MASTER
MODULE
The control system failed to receive messages
from the Master Module (right controller).
Refer problem to a qualified JLG mechanic.
6633
CANBUS FAILURE - SLAVE
MODULE
The control system failed to receive messages
from the Slave Module (left controller).
Refer problem to a qualified JLG mechanic.
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