Posted by Bill VA on April 18, 2017 at 21:16:17 from (216.24.79.193):
In Reply to: Drawbars posted by Eldon (WA) on April 18, 2017 at 19:03:28:
Vertical load on a drawbar is something I never see talked about. This came to my attention when I noticed it listed in Deere moco manuals and then with other mower conditioners.
As an example, the JD 625 moco has a vertical drawbar load around 1,000 lbs. If I wanted to pull the thing around our barn yard with my JD 5055d, the max vertical drawbar load for that tractor per the manual is 552 lbs!!!! Seems kind of low IMHO especially since it has a Cat II hitch and drawbar. If I put more than 552 lbs on the drawbar, I don't know if the drawbar would break, the drawbar hitch weldment/assy would break or the rear end casting would break off under the weight of a drawbar vertical load! LOL!
Here is the blurb from the manual for the 5055d
"Observe Drawbar / Wagon Hitch Load Limitations
IMPORTANT: Certain heavy equipment, such as a loaded single-axle trailer, can place excessive strain on drawbar. Strain is greatly increased by speed and rough ground.
Static vertical load on drawbar/wagon hitch should not exceed 250 kg (552 lb)."
There is another/almost identical tractor JD made before my 5055d year make and it is the 5205 "Advantage Series".
The 5205 has an identical drawbar and drawbar hitch weldment as my 5055d, yet the 5205's drawbar limit is 1225 lbs max vertical load.
Here is that text from the 5205 manual:
"Observe Drawbar Load Limitations
IMPORTANT: Certain heavy equipment, such as a loaded single-axle trailer, can place excessive strain on drawbar. Strain is greatly increased by speed and rough ground.
Static vertical load on drawbar should not exceed 556 kg (1225 lb)."
What gives????? Why the difference in vertical drawbar load??????
My thinking is the 3 cylinder 5000 series JD tractors, i.e. 45, 55, 65 engine hp models, (with the exception of the 5205 and 5105) are limited to 552 lbs due to their VERY light front end. A safety CYA on Deere's part.
Makes me wonder what the limit is for my MF 50 or the Ford 3000, etc. Somehow I think these tractors have seen heavy drawbar loads from single axle trailers with tongue loads exceeding 500ish lbs in years past.
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