TCM FB30-7 - 3.1.3 Interlock System

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3.1.3 INTERLOCK SYSTEM
The interlock system is a safety device that cuts off power supply to the drive or hydraulic motor
when the operator gets out of the seat during operation.
If the interlock system is activated, you won’t be able to operate the drive system, hydraulic
system, and power steering properly. Observe the following conditions when operating the
lift truck to prevent the interlock system from getting activated more than necessary.
1. Make sure that you are in the operator’s seat and the shift lever is in neutral before
turning the key switch to the ON position.
2. Fasten the seat belt securely.
3. Before leaving the truck, apply the parking brakes, put the shift lever in neutral, and
then turn the key switch to the OFF position.
4. If you get off the truck temporarily during operation, apply the parking brakes and place
the shift lever in neutral.
• Donotleavetheoperator’sseatwhiletheforksarelowering;otherwisetheforksstoplowering
abruptly, causing the load to fall off the forks.
• Donotleavetheoperator’sseatwhileyouareoperatingthesteeringwheel;otherwisesteering
will become extremely hard.
• Thedrivinginterlocksystemonlyshiftsthedriveunitintoneutral;itdoesn’tengagethebrakes.
• If,whilethetruckisgoinguparampandtheoperatorleavestheseatorstandsup,orifthetruck
is operated from a position that does not press the operator’s body weight on the seat, the driving
interlock will be activated and shift the drive unit into neutral. Then, it is quite possible that the
truck might roll back down the slope.
• Fastentheseatbelt.Don’tleavetheoperator’sseatorstandupwhiletraveling.
•Don’trestanythingheavyontheoperator’sseat;otherwisethedrivinginterlock mayfailto
operate as it should.
• If the operator’s seat isreplaced with a newone, use a genuineTCM operator’s seat equipped
with a seat switch.
3. CONTROL SYSTEM