John Deere 686

686RHU

SPFH Corn Header Series

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  • Small drum cutting
  • Small drum gathering
  • Row scrapers and cleaners prevent crop buildup
Manufacturer John Deere
Model 686 Rotary Harvesting Unit
Rotary harvesting unit  
Length  2.1 m (6.8 ft)
Overall width  4.6 m  (14.8 ft)
Height  1.4 m (4.4 ft)
Transport height  1.5 m  (4.8 ft)
Operating width  4.5 m  (14.7 ft)
Transport width  3 m  (9.7 ft)
Weight  2,259 kg (4,980 lb)
Revolution rating calculated with forage harvester at a standstill without load  
Engine rpm  2,100 rpm 
Header drive shaft (shift rod pulled out for slow speed)  Slow head speed: 401 rpm 
   Fast head speed: 530 rpm 
Gathering drum  Slow head speed: 41 rpm 
   Fast head speed: 54 rpm 
Large  ---  
Small  ---  
Cutting blades for gathering drum  ---  
Large  ---  
Small  Slow head speed: 1,323 rpm 
   Fast head speed: 1,748 rpm 
Feed drums  Slow head speed: 73 rpm 
   Fast head speed: 96 rpm 
Cross feed drums  Slow head speed: 88 rpm 
   Fast head speed: 116 rpm 

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