Hesston 770 haybine couple of questions

lastcowboy32 · Aug 14, 2015

Just getting used to this machine and almost have it cutting nearly perfect. But...

It has bolt-on sections, and a couple of the sections have a nut missing. The remnant of the bolt is still there. I took off the guard and ground the bolt down to the sickle bar, but I can't get a good enough swing on them with a hammer and punch to pop them out with the sicklebar still in the mower. Any tips here?

I'm sure that I could get them out if I could take out the sicklebar and lay it on an anvil. I've never taken the sicklebar out of a Hesston. It has a different end bushing/bolt setup than the New Holland that I'm used to. Anybody have any tips or warnings about this? Any parts that I should have on hand if I do this? For instance, are the nuts on the two bolts that hold the sicklebar nylon locknuts that should be replaced if they are taken off?

Thanks.

lastcowboy32 · Aug 14, 2015

Should say 1070 haybine. Had a brain lapse there, thinking of the model of my uncle's 770 Case tractor.

Brendon Warren · Aug 14, 2015

A lot of times I'll put a bottle jack under the sickle bar to
keep it from bouncing when I hit it. On stubborn ones I'll
sometimes heat around the bolt with my handheld torch with MAPP
gas. I've had a Heston 1091 for years and think I've had the
whole cutterbar out once.

rrlund · Aug 14, 2015

I think those nuts are tapered like a lug nut. Where they mate up to the bar that they go through,the bar should be tapered in. The bolts are threaded all the way,so loosen the nuts,then turn the bolts all the way out.

lastcowboy32 · Aug 16, 2015

(quoted from post at 16:48:28 08/14/15) I think those nuts are tapered like a lug nut. Where they mate up to the bar that they go through,the bar should be tapered in. The bolts are threaded all the way,so loosen the nuts,then turn the bolts all the way out.

Not sure about that. The new bolts have splines on them, and some of the ones that I've replaced don't thread into the bar. They either have to be tapped in or drawn in with the nut on the threads. They do have a slotted screw head on them; but my guess is that they're not turning once those splines have compressed.

RGMartin · Aug 16, 2015

I take the guards off mine to work on a section or two if I have to. Those tie bar guards(if you still have them) hide the rivets pretty well.

If I had to do more than a few I would pull the whole knife.

Brendon Warren · Aug 16, 2015

Cowboy I think Mr. Lund was referring to your question about the
cutterbar.

lastcowboy32 · Aug 17, 2015

(quoted from post at 17:18:22 08/16/15) Cowboy I think Mr. Lund was referring to your question about the
cutterbar.

Indeed he was. It appears to be as he described. I also noticed that the bracket on mine has been welded where it holds the end of the cutterbar.

Hesston 770 haybine couple of questions

lastcowboy32

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lastcowboy32

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Brendon Warren

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rrlund

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lastcowboy32

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RGMartin

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Brendon Warren

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lastcowboy32

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