Weight Difference Between 4010 4020

[Ross Bryner]

Hey John Deere Experts ! ,. . .I noted something interesting while leisurely reading my C.H. Wendell book of Nebraska Tractor Tests.

The 4010 was tested at 84 pto horse but only weighed 7000 lbs (without ballast). The 4020 3 years later was tested at 95 pto horse but weighed a beefy 8700 lbs (without ballast).

Did Deere engineers decide the 4010 was way too light for such horsepower and then 'heavy up' the 4020 when it was designed ?

My neighbor has a 4010, seems like a great old tractor, but I was suprised to see it isn't much heavier than my Dad's old Farmall 656 (62 pto h.p. at 6600 lbs.) However, my Dad's Farmall 766 weighs in at a beefy 9300 lbs. but is rated at a very similar pto horsepower than the 4010 (85 pto).

So, it appears John Deere Heavied up their tractors to weights similar to Farmall for their 20 series tractors.

Similar observation on the 3010 vs 3020.

Any comments on this? Also, exactly what did John Deere do to pack on extra weight on dimensionally similar tractors (4010 vs 4020)?

Thanks, Ross.

 

[Anonymous-0]

When 3010 and 4010 came out they were equip differant then later tractors. 3010 came std with 13.6 X 36 tires and light case centers 4010 had 15.5 x 38 tires and the f1500 cast center also very light comparred to the havey cast 34" centers and larger tires used on the 20s and trans case , axel housings axels were all heavyer and tractor made heavyer thur out to take mare HP

 

[WTW]

Ross,
An early 4010 was some lighter than a later 4010, mostly in the final drive area. The 4020 tractor even though it resembles a 4010 is a complete different tractor. Clutch and transmission cases as well as all internal parts are much heavier. Final drives were wider and heavier. The 4010 was bolted together between clutch and transmission housings with 5/8" bolts. The 4020 used 3/4" bolts. The 4020 come standard with heavier cast wheels than the 4010 had. The 4010 was the choice for tractor pullers because of there lighter weight. DW

 

[tim s]

Yes, It is amazeing the High HP that has been put through them...for no heaveyer than they were...

 

[c.w n.y]

my j.d tech book says the weight differince is only 435 lbs, what am i missing out on. maybe i should go out to the shop and double check though.