Fiat Kobelco EX355 Tier2, Technical Manual

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T5-4-26 EX355
TROUBLESHOOTING B
E-6 Engine Does Not Stop Even If Key Switch is
Turned OFF.
(When the engine does not stop, be sure to
start checking after stopping the engine by
pulling the engine stop handle located un-
der the seat stand).
Related Fault Codes: 01 and 07
Checking Instruction
•
Trouble symptoms such as “Engine runs slower
than normal at all operation speed” or “Even if
engine control dial is turned, engine speed is
unchanged” are sure to exist at the same time.
Perform the troubleshooting of all symptoms.
E-7 Auto-Idle Function Does Not Function.
Related Fault Code: None
Checking Instruction
•••••
When trouble corresponding to E-1 to E-6 exist,
perform the troubleshooting of them beforehand.
•
Refer to the Control System group titled “Auto-Idle
Control” in the SYSTEM Section in the Operational
Principle book (Technical Manual).
NO
YES
Monitor auto-idle switch.
Check if indication of “AI”
is displayed or deleted on
Dr.EX screen by
operating the auto-idle
switch on the right panel
ON or OFF.
Monitor pressure switches
(travel and front
attachment).
Check if indication of “Tr”
and “Fr” is displayed or
deleted on Dr.EX screen by
operating each of the travel
and front control levers.
•
Monitor item:
Pressure Switch
Faulty auto-idle switch, or
broken harness between
auto-idle switch and MC.
•
Monitor item:
Auto-Idle Switch
NO
YES
Faulty pressure switches
(travel, and front
attachment).
Faulty harness between
MC and pressure switches.
Filter in the pilot signal
circuit is clogged.
Failure in MC
•
After replacement,
refer to T5-4-60.
NOTE - Pressure switches
(travel, and front attachment)
are installed on the control
valve.