Operation Section
69
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 & Seat belt interlock
-. With this safety function, sitting is recognized
only when the seat belt is put on after the
operator has sat in the operator seat. However,
if the seat and the belt are engaged together at
the time of initial starting, sitting is recognized. If
the seat belt is released while the vehicle is
being operated, the operator is recognized as
away from his seat, and the vehicle is switched
to neutral. In seat sw off and seat belt sw off
condition, EE flashing fault is triggered. In seat
sw on and seat belt sw off condition, E8 flashing
fault is triggered. In seat sw off and seat belt sw
on condition, EE flashing fault is triggered. To
clear the alarm, use the correct sitting sequence.
The correct sitting sequence is; sit on the seat -
> put on the seat belt. See ‘Sitting sequence’ for
detailed information.
2. Seat belt switch
-. The seat belt switch is located next to the
operator’s seat. If the operator does not wear
the seat belt, the electric circuit will cut off.
When the operator wears the seat belt, the
electric circuit will be connected. If the operator
wears and fastens the seat belt before sitting on
the seat, it is recognized as a sequence error,
the “E8” error is displayed on the display and
the buzzer is activated. To return the truck to
normal state, the seat belt must be released
and then put on again. See ‘Seat Belt Switch’
for detailed information.
3. FR control
-. EE Fault is triggered if FR control is not in
neutral position when the vehicle starts. To
clear the alarm, operator must turn the switch to
neutral and restart the vehicle. When FNR knob
gets disconnected or in abnormal state, AF
Fault is triggered. In this case, the operator
should check the FNR knob for repair. In seat
switch off condition during FR control engaged,
EE Fault is triggered. To clear the alarm, the
operator should sit on the seat to turn the seat
switch on. See P.77 for detailed information.
4. Lever neutral detection
-. If the forklift is started or the operator returns to
the forklift, Lift function is only available when
lever is at the neutral position. The truck uses
proximity sensor to detect whether the lever is
neutral. The lift neutral sensor is located in the
main control valve at the bottom of the
operating lever. If the lift lever is not neutral
when the forklift is started or the operator
returns to the forklift, the lift neutral sensor gets
detected and FL error is displayed. To clear the
alarm, the operator must turn the lever to
neutral position and restart the vehicle. The lift
neutral sensor and detection unit must be
adjusted so that they do not overlap and are not
sensed in neutral See ‘Lift Neutral Sensor’ for
detailed information.
5.
Parking brake
-.
The parking brake is automatically engaged
after the vehicle stops. press the accelerator
pedal lightly to release the parking brake. See
‘Parking Brake’ for detailed information
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