B
TROUBLESHOOTING
en-135
Safety, Operation, & Maintenance Manual
Lithium
TROUBLESHOOTING
TROUBLE SHOOTING ________________________________________________
Problem
Possible Cause/Items to Check
Additional Items to Check
Key switch ON - No power
to LDU
48VDC Battery or 48VDC Buffer Battery not
connected or discharged.
Check battery connections and voltage.
No 12V power to LDU. Overcurrent protec
-
tion device in PDU may be tripped. Check
for open connection or shorted wire to GND
for LDU 48V power.
Cycle power once corrected.
Key switch ON - No power
to MCU or RCU
Main Contactor not on due to circuit breaker
tripped.
Check to see if circuit breaker 4 is tripped.
Fault Code on LDU
Review any fault codes and take appropriate
action.
Overcurrent protection device in LDU
tripped. Check for open connection or
shorted wire to battery for main contactor
coil power.
No Traction Movement
Ensure Machine was started. Check LDU
Green Lightning Bolt for steady on.
If flashing initiate start sequence.
Fault Code on LDU
Review any fault codes and take appropriate
action.
Traction Contactor is off. Check MCU LED #
8 should be on when contactor is on. If off
see next item.
Overcurrent protection device in MCU
tripped. Check for open connection or
shorted wire to battery for traction contactor
power.
Check if Seat Switch is functioning. Check
MCU LED #24 should be on when on seat
and off when off seat.
Check switch and harness connection.
No CAN communication.
Check connections.
Parking Brake not releasing
Manually release parking brake, then
remove release screws. Cycle power.
Overcurrent protection device in PDU
tripped. Check for open connection or
shorted wire to GND for throttle pedal power,
TCU logic power, and park brake power.
Cycle power once corrected.
Overcurrent protection device in MCU
tripped. Check for open connection or
shorted wire to battery for traction contactor
coil power.
Summary of Contents for 10029194
Page 14: ...en 14 Safety Operation Maintenance Manual Notes Lithium SPECIFICATIONS...
Page 18: ...en 18 Safety Operation Maintenance Manual DECALS Notes Lithium...
Page 44: ...en 44 Safety Operation Maintenance Manual CONTROLS Notes Lithium...
Page 62: ...en 62 Safety Operation Maintenance Manual BATTERIES Notes Lithium...
Page 88: ...en 88 Safety Operation Maintenance Manual ADJUSTMENTS Notes Lithium...
Page 146: ...en 146 Safety Operation Maintenance Manual QUALITY OF CUT Notes Lithium...
Page 147: ......