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Adjust an engine speed of approx. 1200 rpm.
Run a cold engine for approx. 1 to 2 minutes at this speed. At ambient temperatures below freezing, extend this warming up period to 2 - 4 minutes.
IMPORTANT:
Never run engine without load for more than 5 minutes.
Do not increase engine speed to maximum rpm unless needle of coolant temperature gauge is in the red-orange zone.
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All indicator lights except the park brake light must be out. If any other lights stay on, stop the engine and correct the fault.
NOTE:
If "Stop" is displayed, the relevant diagnostic trouble code will also be displayed. In this case stop the forage harvester, shut off the engine immediately and correct the problem. The diagnostic trouble code will be shown until the problem is solved. If the problem cannot be solved, see your John Deere dealer.
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