Flail Mower Hammers or Y knives

   / Hammers or Y knives #1  
H

Howard Farm

New member
Joined
Aug 19, 2012
Messages
11
Location
Mt. Pleasant, Queensland
Tractor
Antonio Carraro TRH9800, Kubota BX2230
Hello,

I have just had an Orsi 209 flail mulcher delivered with Y knives, however I expected hammers. I'm trying to decide to have them changed.
I want a nice finish on my lawn areas around the house but also want to promote good pasture health in the paddock. I will also be using it for clearing of regrowth where there is a strong possibility of hitting tree stumps and branches, and small and large rocks.

We tested the Y knives on the lawn and it cut successfully but with serrations.

Any experience or opinions are appreciated

Cheers
 
   / Hammers or Y knives #4  
Hammers are for rough stuff. I don't think it realistic to expect a finish cut from them.

//greg//
 
   / Hammers or Y knives #6  
What is "quay" I just went to Orsi's website to look at the flails. I am assuming that yours is the Farmer 209??? The literature said "Suitable for cleaning quay and side of ditches."
I cut my lawn at times with my flail. Yes, it leaves the serrations but it looks nice from a short distance away. I wouldn't want to cut too short with the flail because cuts the runners of the grass (common burmuda)
One other thing, the rotor, at least on my machine, is different if it is set up for hammers. I can run cup knives for grass and the "V" knives for the heavier stuff if I want but not hammers. YMMV.
 
   / Hammers or Y knives #7  
If you are getting serrations when mowing the mower is set too low.
You need to change the position of the rear roller and lower it
(the rear roller one bolt hole on each side of the flail mower.
If you are fortunate enough to have the screw worm adjusters
for front and rear turn turn them out 3 turns to raise the rear roller
and see how the lawn looks after that and adjust it accordingly.

If you change to hammers it will not cut very well, where it will simply
beat everything down as the grass will simply be impacted and pushed
over by the hammers.

The Scoop Knives work very well but the Side Slicers are better in my opinion
for fine turf and heavy brush.

Oh and I wish to welcome you as the newest member for the Southern Hemispere
contingent of the Flail Mower Nation of Australia.

Iron Horse is our first honorary Member.
 
   / Hammers or Y knives #8  
Hey Allen,

The word Quay refers to an earthern dock/wharf for boats and ships.
 
   / Hammers or Y knives
  • Thread Starter
#9  
Thankyou all.

I got to page 50 of the suggested thread last night ...only 70 to go! Don't worry its all good stuff.
Thanks Greg_g and Leonz - I spoke to the good blokes of ASP (they make/sell hammers and knives here - I think Ironhorse has referred to them) and they agree with you so I think I stick with them. I'll only know for sure if I do and if I change them I'll never know.
The roller was set as high as can as it was straight of the truck when we ran a cut of about 2m to have a look. I'll be setting it up properly (hopefully) on the weekend and the skids put on (after reading pages 51 to 127 of the thread!).
Don't worry MikeHaugen I already know I need 3 flail mowers......need and want are the same thing right! Just need a bigger shed to store them in.
Hopefully I haven't made the wrong comprimises by going the full verge mower version. We have a steep ridges with tracks cut into the sides so I wanted to be able to cut the top and bottom sides. After reading the thread, the amount of float I'm going to get has me concerned...but we'll see.

(I thought Ironhorse's "Orstraya" was somewhere in Eastern Canada...Don't tell him though)
 
   / Hammers or Y knives #10  
I use the 4" finish Y knives on pastures (grass height 6") and it is great. I know they would do lawn cutting well, too.
 
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