- information on all makes and models of tractors
Tractors > John Deere > 4640

John Deere 4640 - transmission

John Deere 4640 tractor photo
1978 - 1982   Iron Horses Series
Row-Crop tractor
Next model:John Deere 4650
Series next:John Deere 4840
Series back:John Deere 4440
more John Deere 4640 specifications...



Transmission:John Deere Quad-Range
Type:partial power shift
Gears:16 forward and 6 reverse
Four gears (1-4) in four ranges (A-D). Power shift between pairs 1-2 and 3-4 in each range, with synchronized shift between 2-3. Two reverses in ranges A-C. Tractor must be stopped, and clutch used, to shift ranges. Power shift is provided hy a hydraulically-controlled planetary that provides an under-drive to each gear.
4640 Quad-Range partial power shift speeds
John Deere 4640 Quad-Range transmission photo


Transmission:John Deere PowerShift
Type:full power shift
Gears:8 forward and 4 reverse
Clutchless shift-on-the-move power shift between all eight forward and four reverse gears. Inching pedal provided for hooking up implements and other precision work.
4640 PowerShift full power shift speeds
John Deere 4640 PowerShift transmission photo

Page information:

Last update:September 14, 2017
Copyright:Copyright 2017 TractorData LLC
©2000-2017 - TractorData™. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.