Operation Section
-79-
Functional safety System
WARNING
These are the functions added for functional
safety.
When using these functions, the vehicle is
switched to neutral for safety purposes.
Therefore, attention is required when using them.
1. Seat belt sequence interlock
-. With this safety function, the vehicle will only be
ready for travel when the driver has sat in the
seat and put on the seatbelt in the correct
sequence. However, in the case of initial starting,
sitting can be recognized when the operator
takes the seat and puts on the seatbelt,
regardless of the sequence.
If the seatbelt is released or the driver leaves the
seat while the vehicle is in motion, the vehicle will
be switched to neutral.
2. Mast neutral detection
-. When starting the vehicle or when the operator
returns to his seat or puts on his seatbelt after it
has been released, the work machinery can only
be used when it is in the neutral position.
3. The forced neutral lamp turns on
- When the operator leaves his seat or releases
his seatbelt when the vehicle is driven or when it
remains stopped, the neutral indicator light is
turned on, and it will stop blinking if the operator
returns to his seat in 0.2 ~ 2 seconds.
However, a buzzer will sound after two seconds
with the gear in neutral, and the parking brake
will operate when the vehicle’s speed is 0 km/h.
- When returning to the operator’s seat according
to the seat belt sequence, forward/reverse are
possible only after the FNR lever and accelerator
pedal have been changed to neutral.
4. Accel drive
-. Vehicle forward/reverse are possible only by
pressing the accelerator pedal after operating
FNR lever for vehicle forward/reverse.
NOTE: After engaging the direction lever, caution is
required as the vehicle is driven when push
the accelerator in situations such as the use
of the mast lever while the vehicle is
stationary.
- Exceptions -
-. If the vehicle speed exists, vehicle
forward/reverse is possible only by operating the
FNR lever.
-. When driving on a slope with inclination equal to
or higher than the set angle, the vehicle can be
driven with the FNR lever and without the
accelerator signal. However, the vehicle may be
pushed back on a slope whose inclination is less
than the set angle if the Accel pedal is not
pressed. Depending on whether the vehicle is
loaded or not, the inclination of the slope can be
changed.
-. Even if the vehicle has the same specification,
the amount of pushback may differ due to the tire
specification (i.e. then amount of tire
compression) or tire wear after shipment from
the factory.
-. If the vehicle is stopped while driving, it must be
stopped for 2 seconds to change to neutral.
5. Forward/reverse is not possible if there is a
problem with the FNR solenoid.
6. The work machinery cannot be used when there
is a problem with the solenoid related to the mast.
7. The accelerator pedal needs to be checked when
engine check, mast interlock, forced neutral lamp
are turned on.
8. When the neutral lamp is blinking or the engine
check, mast interlock or neutral indicator lamp is
turned on, it indicates abnormal engine output
power, which needs to be checked.
When the engine exceeds 2800 rpm, the vehicle
will be switched to the neutral state and the
corresponding warning will be activated.
9. Auto-parking
Parking operates automatically if the gear
remains in neutral for 1.5 seconds while the
vehicle is stopped. When operating the
accelerator pedal after FNR gear was inputted,
parking is released and the vehicle moves.
However, while driving on a slope, parking is
released only by the FNR gear input and the
vehicle moves.
10. The buzzer sounds for one second and rests for
two seconds, which is deemed to be one cycle,
and the cycle is repeated. If this happens, it is
necessary to check the Gyro Sensor and the
connection of the harness around it.
Please note that the Accel Drive function is
executed on a slope if the Gyro Sensor
malfunctions.
FS VCU Classification of Warning
buzzer
Seat empty warning : 0.5sec ON - 0.5sec OFF
Brake oil level warning : 0.5sec ON - 0.5sec OFF
Engine stop : 1ec ON – 1sec OFF
WIF warning : 2sec ON – 2sec OFF
Mast front angle warning : 2sec ON – 1sec OFF
DPF soot warning : 2sec ON – 2sec OFF
After treatment(DPF) fault : 10sec ON-290sec OFF
GSS warning : Continuous
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