John Deere 770 for sale at Lawson Implement Co., Inc. Serving your new and used equipment needs from Goldthwaite and Hamilton, TX.




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The 770 Rotary Harvesting Unit features four large drum units and one small drum located on the outside of the left-hand and right-hand sides of the machine. Small drums were put on the outside of the harvesting unit to better handle low-tonnage requirements. Big drums handle high tonnages of crop better than small drums.

  • Large drum cutting enables cutting of fields
  • Harvesting down or lodged crops
  • Advanced header-height control
  • Row scrapers and cleaners prevent crop buildup
Manufacturer John Deere
Model 770 Rotary Harvesting Unit
Rotary harvesting unit  
Length  3.5 m (11.5 ft)
Overall width  7.6 m (24.9 ft)
Height  2.4 m  (7.9 ft)
Transport height  3.2 m  (10.6 ft)
Operating width  7.5 m  (24.6 ft)
Transport width  3.3 m (10.8 ft)
Weight  3,340 kg (7,363 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)  405 rpm 
Gathering drum  ---  
Large  22 rpm 
Small  47 rpm 
Cutting blades for gathering drum  ---  
Large  640 rpm 
Small  1,190 rpm 
Feed drums  ---  
Cross feed drums  ---