Accessory; Electric Motor - JLG TOUCAN 8E Service And Maintenance Manual

DTC FAULT MESSAGE
6634 CANBUS COMM LOST

6-7 Accessory

DTC FAULT MESSAGE
672 FUNCTIONS CUTOUT - SOFT
TOUCH DETECTED
673 FUNCTIONS CUTOUT - GATE
OPEN DETECTED

7-7 Electric Motor

DTC FAULT MESSAGE
7721 MASTER MODULE CAPACI-
TOR BANK FAULT
7722 SLAVE MODULE CAPACITOR
BANK FAULT
7723 RIGHT MOTOR FEEDBACK
FAILURE
31210090
DESCRIPTION
The platform module failed to receive
messages from both the master and the
slave modules.
DESCRIPTION
An obstacle has been detected by the soft
touch device (if equipped).
Platform entry gate is detected open.
DESCRIPTION
The power capacitor bank of the power
module is not charging properly at
startup.
The power capacitor bank of the power
module is not charging properly at
startup.
The right motor voltage feedback circuits
are damaged (Master Module).
– JLG Lift –
SECTION 10 - DIAGNOSTIC TROUBLE CODES
• Disconnect CR3 (Slave controller connector) and
measure resistance between CR3(27) and
CR3(28). If it is not 60  ±5%, check continuity of
the bus wires :
-CR2(27) to CR3(27) & CR2(28) to CR3(28);
-CR2(27) to CR1(29) & CR2(28) to CR1(18);
-ground panel board : CR1(29) to CR1(17) &
CR1(18) to CR1(6);
-CR1(6) to CR25(A) & CR1(17) to CR25(B);
-CR25(A) to CR4(P) & CR25(B) to CR4(N);
-Platform console : CR4(P) to J1(3) & CR4(N) to
J1(4).
• Ensure that all the connectors pins are properly in
place and the connectors are free of moisture or
oxidation.
• Measure the resistance between J1(3) and J1(4) of
the platform board : if it is not 120  ±5%, replace
the board.
• Clear the obstacle.
• Ensure ANALYZER->MACHINE SETUP->SOFT
TOUCH is set to 0 if not installed.
• Ensure ANALYZER->MACHINE SETUP->GATE is
set to 0 (If Not Installed).
If Gate limit switch(es) is (are) installed :
• Check if the Gate limit switch(es) is (are) damaged;
• Check the limit switch(es) for proper (complete)
actuation
• Check the limit switch(es) wiring :
Gate(s) closed :
@ +Vbatt : CR32(A), CR32(B), CR33(A),
CR33(B).
@ -Vbatt : CR32(C), CR33(C).
• 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
CHECK
CHECK
10-17