8ft or 9ft Disc mower
Posted 13 September 2020 - 06:50 PM
Posted 14 September 2020 - 12:37 AM
Assuming you know what PTO horsepower your tractors have;
Decide on a brand or two that you like, or that parts and service are available for in your area.
Check the manufacturers websites for power recommendations for a given cut size of disc mo-co
I have found that a 9 or 10 foot cut disc mo-co will need on average 80 or 90 pto h.p. to be effective in hilly ground
Posted 14 September 2020 - 07:20 AM
Are you thinking 3 pt. or pull type? Conditioning or just mowing?
Posted 14 September 2020 - 08:28 AM
According to tractordata you have 77 HP on the shaft. If you are not hilly it will handle a 9 footer. In heavy hay you may have to drop a gear, let your temp guage tell you what to do. Or if you want to not worry about it go 8 ft. Remember if you cut at 3-3.5 inches it will pull a lot easier than if you go down to 1.5-2 inches. Also let how much you mow be factored in.
- Ridgefarmer63 likes this
Posted 14 September 2020 - 12:02 PM
Posted 14 September 2020 - 05:31 PM
62 pto hp on the 684. I think a 9' cutter would work it pretty hard forcing you to go slow. The 5120 should not have any trouble with a 9'. I pull my 10' Kuhn using a 2wd M9000 with 82 pto hp with no problems power wise. If it is really sidling and the mower is downhill I can tell but no real problems.
Some International's (like my old 454) have wonky 3-point arms that do not lock into a position and slide freely up and down. That is a problem with a side load like a disc mower.
If I had to choose I would go with the 9' first. An extra foot of cut makes a huge difference.
Posted 16 September 2020 - 08:14 PM
- Snow Farmer and dvcochran like this
Posted 17 September 2020 - 06:44 PM
Thanks dvcochran, and everyone else! I have found a good deal on a Vermeer 7040, may go that way and get a 8 ft later for the 684, in middle Tennessee not going to be on any steep ground.
That's great to hear. You will be glad you went 9ft.
It is funny, if you go one or two counties south of Davidson County it gets hilly as heck. Go two or three counties west and it is flat as a pancake. Excellent crop land.
We farm in Dickson and Hickman County and some of our land is useless billy goat hills.
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