I H 1086 3pt hitch

crsutton81 · Mar 3, 2022

On a 1086, is there anyway to increase the 3pt hitch lift height besides shortening the lift arm turnbuckles all they will go ?

Tony in SD · Mar 3, 2022

Looking at mine, I dont think so. What do you want to lift higher?

crsutton81 · Mar 3, 2022

The chisel plow shanks just do clear the ground when it's in the up position. Scrapping the road entrances getting in and out of fields with it.

pete 23 · Mar 3, 2022

First off, check to see if it is lifting to the correct height. I don't recall for sure the exact measurement but 38 inches kind of rings a bell from center of anchor pin to center of lift link on arm.

Then look at the clearance between whatever, cab or tank and you might be able to gain some by moving lift arms one spline on rockshaft. Then you would have to reset stop if it interfered with anything.

I measured and adjusted a whole lot of all those Farmalls over the years and a lot are way off from specs. It was a part of pre delivery service and then after a repair .

flying belgian · Mar 3, 2022

If you move the mounts on the plow will you be able to get it in the ground enough? That would be what I would do.

4xMF · Mar 3, 2022

If implement and tractor have more than one hole for the toplink hook the toplink as high as possible on the implement and as low as possible on the tractor.

ss55 · Mar 3, 2022

Is there more than one place to attach the top link to either the tractor or the implement?

crsutton81 · Mar 3, 2022

Here are some pictures if they load of what's going on. The lift is raised all the way up on lever. The lift yokes on rockshaft never come close to the fuel tank, and never have, like the Magnum 71xx series. Is it clocked correctly on the rockshaft ? I'm out of options on anything else as far as pinning the chisel plow up higher on the hitch. The center link is in the bottom hole on tractor end to help pitch the back up when it's raised.

flying belgian · Mar 3, 2022

Now that I see the pictures, there is a lot of room for the arms to raise higher. Move them on the splines.

Brendon-KS · Mar 3, 2022

Here's what my 986 hitch looks like raised all the way. The hitch balls are about 35 above the ground here while in the lowest position they are maybe 10-12 inches. I believe the 1086 has a Cat 3 hitch while the 986 is a Cat 2 but I'd think that the rockshaft geometry would be more-or-less the same.

crsutton81 · Mar 3, 2022

Yes but I already have it set as high as it will go.

pete 23 · Mar 3, 2022

I just looked up the lift specification on a cat three hitch which a 1086 has. It is 39-3/16 from center of draft pin (lower hitch point with grease zerk ) to the center of pin hole in end of lift arm.

Linkage is slotted to position lever and limit stop is set screw where arm enters rear cover. Your best starting points.

crsutton81 · Mar 4, 2022

Thank you Pete for this info. I'm going to do something to it right or wrong. Every other tractor around here is broke down, so this one may as well be too. Sigh....

SVcummins · Mar 4, 2022

My 4020 was that way a new hydraulic pump made it lift full height again

fixerupper · Mar 4, 2022

IHs didnt lift as high as a Deere. I adjusted my 1086 in every way to get it higher and the points on the V ripper still barely clear. The cultivator was a little better. My brother in law adjusted the three point way up on his 1086 and the lift piston came up out of the bore. Maybe something else was going on with his tractor to cause this.

dhermesc · Mar 4, 2022

Linkage is slotted to position lever and limit stop is set screw where arm enters rear cover. Your best starting points.

I would say the issue is the set screw or someone before you indexed the lift arms so they would go lower. If this were an older tractor that could have come with a fast hitch (was a fast hitch an option on a 1086?)I would say someone pulled the fast hitch off and added the three point but failed to re index the lift arms. The lift arms on a fast hitch are set to a lower position and don't go as high was the lift arms on a 3 point. To get the proper lift height you have to pull the lift arms off the rock shaft and index them correctly on the rock shaft splines.

crsutton81 · Mar 4, 2022

I'm definitely going to have to have
it corrected before we drag out the
Danish IH 183 cultivator or I'll
tear up every end row of corn and
soybeans trying to plow them.

pete 23 · Mar 4, 2022

The rockshaft will hit the inside of the top cover before the piston can come out of it's bore
unless something has broken or fallen apart. If a cotter key comes out it is possible for the
piston rod to fall out.

You always adjust a hitch height with no load on hitch so you can be sure it is possible to lift
the hitch manually at least one more inch so the rockshaft does not hit cover when hitch is fully
raised.

I have seen pistons come out, cover broken from rockshaft banking against them like when backing
up a semi mounted plow to clear trash out of it. Spanking new 1466 to be exact.

Also, tires catching on hitch and slamming it up and down when hitch is not being used.

crsutton81 · Mar 4, 2022

I have had both hydraulic pumps replaced on this tractor with new ones when the counter shaft bearings went out that drives the main pump.

MARK ROBKE · Mar 4, 2022

I don't if this will help/or apply to your situation per se, but on my CIH485, I reclocked the lift arms 1 spline to make it raise higher. I think it had alignment marks, but I can't remember for sure. Mark.

I H 1086 3pt hitch

Member

Well-known Member

Member

Well-known Member

Well-known Member

Member

Well-known Member

Member

Well-known Member

Well-known Member

Member

Well-known Member

Member

Well-known Member

Well-known Member

Well-known Member

Member

Well-known Member

Member

Well-known Member

Similar threads