Check Engine Speeds

Warm up engine and use the rev counter to check engine speeds. The following guidelines apply:

Tractors Slow idle Fast idle
6520
- mechanical injection pump 850-950 rpm 2480-2510 rpm
- electronic injection pump 845-855 rpm 2455-2465 rpm
6620 845-855 rpm 2455-2465 rpm
6820-6920S 845-855 rpm 2245-2255 rpm

 

Have adjustments carried out by your John Deere dealer.

NOTE: On tractors with electronic injection pump, slow idle remains at a higher speed (up to 1060 rpm) until coolant temperature rises to 20°C (68°F).

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