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5. DESCRIPTION OF THE FUNCTIONS
5. DESCRIPTION OF THE FUNCTIONS
(1) Travel speed control while turning (Steering SSC)
• Controls the motor speed so that the truck does not exceed the travel speed specied according to the
angle of the rear left wheel (steering potentiometer voltage) while turning.
<Speed control for each steering angle range>
(a) When the rear left wheel steering angle is 0 to 15 degrees while turning left, or 0 to -10 degrees while
turning right. ------ Maximum speed
(b) When the rear left wheel steering angle is 15 to 25 degrees while turning left, or -10 to -15 degrees
while turning right. ------ The larger the steering angle, the higher deceleration rate.
(c) When the rear left wheel steering angle is 25 to 45 degrees while turning left, or -15 to -30 degrees
while turning right. ------ Varies with the SSC steering level setting.
(2) Traveling neutral interlock
• Prevents the truck from suddenly lurching forward or back when the key switch is turned ON while the
accelerator pedal is pressed or the F/R lever is in the forward or reverse position.
• If the accelerator pedal is pressed or the F/R lever is in the forward or reverse position when the key
switch is turned ON.
<Truck operation>
• The truck cannot be moved.
<Deactivation conditions>
• Accelerator pedal and F/R lever in neutral
(3) Load-handling system neutral interlock
• Prevents the load handling system from starting suddenly when the key switch is turned ON while a load
handling lever is operated.
< Activation conditions>
• If a load handling command (potentiometer switch or valve switch) is present when the key switch is
turned ON.
<Truck operation>
• Load handling system disabled
<Deactivation conditions>
• Load handling command (potentiometer switch, valve switch) OFF
(4) Interlock control
• The interlock system is a safety device that cuts off the power to the drive and load handling circuits
when the operator leaves the compartment during operation. This system helps prevent an accident from
happening if the operator is not in the correct driving position or if the controls are moved unintentionally
when no one is in the operator’s compartment.
<Activation conditions>
(a) When the key switch is turned ON:
• If the key switch is turned ON while the interlock switch is OFF
(b) After the key switch is turned ON:
• If a predetermined period of interlock OFF time has passed while the key switch is ON
<Truck operation>
(a)
The truck won’t travel and the load handling system won’t work. However, the EPS will work.
(b)
The truck won’t travel and the load handling system won’t work. However, the EPS will work.
<Deactivation conditions>
(a) If the key switch is turned ON while the seat switch is ON
(b) Travel system: Accelerator lever OFF and seat switch ON
Load handling system: Load handling command OFF and seat switch ON
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