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3.2 Operator Presence System
The Operator Presence System is a safety feature designed to deactivate selected systems or sound an alarm when an
Operator is not seated at the operator's station.
These systems include:
• Header drive; refer to
3.2.1 Header Drive, page 43
• Engine and transmission; refer to
3.2.1 Header Drive
The header is driven hydraulically from the windrower.
• To engage the header drive, the Operator must be in the seat.
• Power is maintained to the header drive for 5 seconds after the Operator leaves the seat, and then the header
shuts down.
• After the header has shut down automatically, the HEADER ENGAGE switch must be moved to the OFF position and
back to the ON position to restart the header.
3.2.2 Engine and Transmission
The following information describes how the windrower's engine and transmission are programmed to react when specific
conditions are true.
• When the HEADER ENGAGE switch is engaged (up position), the engine will NOT start.
• When the operator's seat is between the cab-forward and the engine-forward positions, and the transmission is not
locked in the NEUTRAL position, the engine will shut down. The display will show LOCK SEAT BASE until the seat base is
locked into a position.
• If the Operator leaves the seat when the machine is traveling less than or equal to 8 km/h (5 mph), the HarvestTouch
Display will show the warning message NO OPERATOR DETECTED and ENGINE SHUT DOWN 5...4...3...2...1...0
accompanied by a steady tone. When the countdown reaches 0, the engine shuts down.
• If the Operator leaves the seat when the machine is traveling faster than 8 km/h (5 mph) the engine will shut off after
10 seconds. During the first 5 seconds, the HarvestTouch
DETECTED and STOP MACHINE IN 5...4...3...2...1...0 accompanied by a steady tone. When the countdown reaches 0, the
engine will slow to idle speed and the wheel motors will shift to maximum displacement.
NOTE:
If the Operator returns to the seat during the initial 5 second delay, the countdown and the alarm will stop.
In the final 5 seconds, the warning message NO OPERATOR DETECTED and ENGINE SHUT DOWN 5...4...3...2...1...0
shows and is accompanied by a steady tone. When the countdown reaches 0, the engine shuts down.
NOTE:
If the Operator returns to the seat during the final 5 second delay, the countdown will stop and a warning message
LOWER THROTTLE TO RESET THROTTLE CONTROL will be displayed. The warning will clear after the throttle regains
control of engine speed.
NOTE:
If an automatic throttle reduction occurs, the engine holds that state until a throttle position greater than position 1 is
detected. The operator presence status is held in non-volatile memory, to maintain the throttle down condition on a
system restart.
262171
OPERATOR'S STATION
3.2.2 Engine and Transmission, page 43
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Display will show the warning message NO OPERATOR
43
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Revision A
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Troubleshooting
