Check Engine Speeds
Warm up engine and use the rev counter to check engine speeds. The following guidelines apply:
| Tractors |
Slow idle |
Fast idle |
| 6520-6620 |
845-855 rpm |
2455-2465 rpm |
| 6820-6920S |
845-855 rpm |
2245-2255 rpm |
Have adjustments carried out by your John Deere dealer.
NOTE:
Slow idle remains at a higher speed (up to 1060 rpm) until coolant temperature rises to 20°C (68°F).
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