jyoutz
Super Member
How does a blade scrape both sides of your tires? Makes no sense. And the moldboard is a long ways from the tires. What difference would it make if it was 5 or 6 feet?
Questions about John Deere 790
- Thread starter pretendfarmer
- Start date
- Views: 11520
-
- Tags
- john deere 790
RoyJackson
Rest in Peace
- Joined
- Nov 17, 2001
- Messages
- 23,144
- Location
- Bethel, Vermont
- Tractor
- John Deere 4052R Cab,, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements
If you have it angled...
jyoutz
Super Member
Would have to be angled sharper than most folks would ever use it. And that depends on the blade design more than the width. I have an 8’ blade that can be spun 360 degrees and the frame holds it well back from the wheels. I would look for a blade with 360 rotation capability.
Reddogs
Gold Member
- Joined
- Jan 14, 2022
- Messages
- 471
- Tractor
- John Deere 790 / Kubota L3301
Tractor tires are not smooth, so they scrape....and the 6 is inches away, so try to turn and see what happens...
Reddogs
Gold Member
- Joined
- Jan 14, 2022
- Messages
- 471
- Tractor
- John Deere 790 / Kubota L3301
Exactly...
Reddogs
Gold Member
- Joined
- Jan 14, 2022
- Messages
- 471
- Tractor
- John Deere 790 / Kubota L3301
I've tightened mine to the max and it still swings as the 6 is too much for that size tractor, go figure..
RoyJackson
Rest in Peace
- Joined
- Nov 17, 2001
- Messages
- 23,144
- Location
- Bethel, Vermont
- Tractor
- John Deere 4052R Cab,, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements
The 790 is a considerably smaller tractor than your Kubota...and, even with sway links (chains on the 790), an implement can sway quite a bit.
Last edited:
beenthere
Super Star Member
- Joined
- Aug 16, 2001
- Messages
- 18,513
- Location
- Southern Wisconsin, USA
- Tractor
- JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold)
Reddogs: Show us a pic of the connected 6' rear blade on your 790.
Suspect the sway chains not connected right or the tires set too far out. Might just need some extensions either on the arms or on the blade frame for the 790 (Yanmar tractor I believe).
A 6' rear blade used at an angle will cover the tracks and the end reach out to be able to blade a ditch out. 5' blade, not very possible.
Have had a 6' blade for 50 years and sometimes for grading ditches, wish it were 7'. Originally on my '58 JD 420 2-cyl
Suspect the sway chains not connected right or the tires set too far out. Might just need some extensions either on the arms or on the blade frame for the 790 (Yanmar tractor I believe).
A 6' rear blade used at an angle will cover the tracks and the end reach out to be able to blade a ditch out. 5' blade, not very possible.
Have had a 6' blade for 50 years and sometimes for grading ditches, wish it were 7'. Originally on my '58 JD 420 2-cyl
Reddogs
Gold Member
- Joined
- Jan 14, 2022
- Messages
- 471
- Tractor
- John Deere 790 / Kubota L3301
Its similar to this cutter on a 790 as I dont have it attached since it gave me so much grief...
See in the 6th photo, how close the lower links are to the tires, that is what hits against them when you turn on the 6 foot cutter. which isnt helped by the sway chain links as its too much for it to hold tight..
jyoutz
Super Member
I think it’s the implement design, not the width that’s the problem. When I shopped for my 8’ blade I wanted one that was designed to be rotated 360 degrees without touching the tires. Some brands couldn’t do this, while some were built for 360 rotation. It’s how long the mounting beam extends from the 3ph. The cheaper brands and models couldn’t be rotated 360 degrees.
