Flexible top link for bush hog?

   / Flexible top link for bush hog? #51  
</font><font color="blue" class="small">( --->Paul ... you can raise the mower up of course, but that is a parrallel raising, not a true, helpful pivot action that we are looking for?

True again, it is more of a verticle lift rather than a swinging pivot, but it did seem to move pretty easily. I used a 5' 2x4 over a block of wood and it lifted up as far as I had lever space. As I said, it seems that would be enough.

OK, I think I've worked this thread to death, don't know if anything was truely resolved. Fun disscussion though. /forums/images/graemlins/grin.gif )</font>


Ok. In my experience without a flex-link, when the tractor goes through a dip:

The front wheels enter, & the mower is hanging in the air, parrallel with the tractor, not parrallel with the ground. Either the front of the mower is digging into the dirt with the whole weight of the mower on it, or the grass is not being cut well because the mower is no longer parrellel with the ground it is over.

The front wheels come out of the dip, the rear wheels go in the dip. The mower now compresses, the tail wheel taking all the weight of the mower, and there is a bit of sissors-type compression of the whole 3pt linkage with the front wheels & rear mower tail wheel compressing the mower, the rear wheels of the tractor dropping down. Typically the rear of the mower wants to press into the ground hard, the front of the mower is trying to raise & not cut - tho that tiny compression force binds it from raising freely. In the end, the tail wheel leaves a mark, the grass is not cut well, and it just is a yuky deal.

I understand you may be able to coax the mower up in a parrallel action with a bar & block of wood while standing still, but in actual use in the real world when motion & compression forces are happening, that upward motion does not easily happen, & the parrallel action of the mower (to the tracotor, _not_ the ground) prevents smooth cutting.

A flex-link, even a small flex, will _greatly_ smooth all this out, preventing dig/ scrape marks on the sod, and a leveler, smoother cut.

Just my experience, not saying that is how it is or should be for everyone. /forums/images/graemlins/smile.gif

--->Paul
 
   / Flexible top link for bush hog? #52  
I think you got it right. And that makes me wonder, did early 3pt hitch bush hogs not have any flexible/floating links at all?

The reason I ask is that my brother-in-law, a farmer who has his own tractor shop, had strongly advised me to avoid 3pt hitch type mowers and to only consider pull-type mowers for uneven ground. We had a heated discussion here about this 3 or 4 months ago. He cited excessive stress on the hitch and the mower mast when moving over rough terrain. Well, he was coming from the perspective of very large mowers and very old mowers. All of his equipment is big and old. So when I went against his advie and bought my LX6 he came over and looked at the floating link (see picture several posts up) and seemed to think it was just brilliant. I didn't ask, but I just wonder if he'd been thinking about older solid top links all along.

In any case, I think the JD floating link arrangement works extremely well on rough terrain _IF_ you have it set up properly.
 
   / Flexible top link for bush hog? #53  
</font><font color="blue" class="small">( So when I went against his advie and bought my LX6 he came over and looked at the floating link (see picture several posts up) and seemed to think it was just brilliant. )</font>

Perhaps true. I havn't seen too many older 'larger' mowers that were not pull type.. that is.. I've never sene an 'old' 8' or 7' 3pt mower.. etc.

Now.. on my new 10' 3pt mower.. the hitch itself has a built in floating link.. that makes for a decent smooth mow over moderately rough land.

Soundguy
 
   / Flexible top link for bush hog? #54  
Update.. While reading my 8n manual.. I came across a section that 'verbatum' refers to the 3pt linkage as "a built in safety feature". That's word for word from the manual.

I knew I had read it somewhere..

Soundguy
 
   / Flexible top link for bush hog? #55  
Some pictures in here are relevent to a new thread so I dug this up
 
 

Tractor & Equipment Auctions

1265 (A50490)
1265 (A50490)
3002 (A50322)
3002 (A50322)
2012 Freightliner Cascadia 113 Semi (A50514)
2012 Freightliner...
UPDATED INTERNET BUYER'S PREMIUM TERMS (A50775)
UPDATED INTERNET...
Woods 3180 Batwing Mower (A50514)
Woods 3180 Batwing...
2016 GEHL RS5-19 TELESCOPIC FORK LIFT (A51242)
2016 GEHL RS5-19...
 
Top