Komatsu AX20 Operation & Maintenance Manual page 79

GLOW INDICATOR LAMP
(MODELS FD20/25/30)
The glow indicator indicates the preheating condition of the engine.
The lamp lights up when the engine starting switch key is turned to
the ON position and goes off when engine preheating is finished.
Start the engine when the lamp goes out.
Lamp ON: Glow plug heating
Lamp OFF: Glow plug preheating completed
NEUTRAL/TRAVEL INTERLOCK INDICATOR
(OPERATOR PRESENCE SYSTEM)
The AX20/BX20 series trucks are equipped with KOPS (Komatsu
Operator Presence System), which includes the neutral safety and
Travel Interlock safety features. When the neutral lamp blinks, it
means that a safety feature has been activated.
Neutral safety ensures that the operator starts the lift truck in
neutral, while Travel Interlock ensures that, during travel, the
operator stays in the operator's seat and sits using good posture.
When functioning normally, the neutral lamp:
• lights up when the starting switch is turned ON and goes off after engine startup.
• shines steady on when the Forward/Reverse lever is put into Neutral.
When the lamp blinks, either neutral safety or Travel Interlock is indicated.
Neutral Indicator
Normal starting operation: When the operator turns the starting switch ON with the forward/reverse lever in the
neutral position, the neutral indicator lamp (2) turns on steady. After the engine starts and the operator puts the
lift truck into forward or reverse, the neutral lamp turns off.
Improper starting and neutral safety activated: When the operator attempts to start the lift truck in forward or
reverse, the neutral lamp starts blinking and the engine will not start.
To clear the indicator and resume travel:
• Put the forward/reverse lever into neutral (neutral lamp steady on). The lift truck is now ready for travel.
• Start the engine and put the lift truck into forward or reverse (neutral lamp off).
Travel Interlock Indicator
With the starting switch turned ON and the engine running: When the operator sits improperly or leaves the
operator's seat for three seconds or more, Travel Interlock disables the transmission of engine power, the
neutral lamp starts blinking, and travel is disabled.
To clear the indicator and resume travel:
• Sit in the operator's seat using good posture.
• Return the forward/reverse lever to the neutral position (neutral lamp steady on).
The lift truck is now ready for travel. Put the lift truck into forward or reverse. It is not necessary to recycle the
starting switch, as the engine will continue to run after Travel Interlock has activated.
OPERATOR PRESENCE SWITCH
This switch is built into the seat and automatically
engages the Operator Presence System when you are not
properly seated in the operator's seat while traveling.
When the Operator Presence System is engaged, the
Travel Interlock function causes the neutral indicator on
the meter panel to blink, and disables normal travel
operations.
See "TROUBLESHOOTING
PRESENCE SYSTEM" on page 3-12.
THE OPERATOR
18. EXPLANATION OF COMPONENTS
Operator Presence
Switch
AD803120
9JL00399
KOPS02
3-11