782 Restoration / Upgrade

[Nightow1]

Few more pix of the front. Rescue11 has done an amazing job on the hydraulic lines. Cant wait to get them done and tested. Put rhe 26" narrow tires on her. I think they look a lot better than the 23" lugs. We put the fenders and seat on to test them out, and they looked great.

[Oak]

Great job guys, looks very nice!

[Nightow1]

Moving along a little at. Time lol. Got the 3pt cylinder lined up and made brackets for it. Neex to make a cross member where the bolt lines up and cut the cylinder down by about an 1" or so then on to the 3pt plate. If we are lucky I might get her back together late December.

[Rescue11]

Well it is now late December! We have little gained ground since the last pictures were posted. The progress has mainly been with the 3pt set up. Maybe sometime this year Keith will post pix, if we have any, of our progress!!

Here is what we have done so far. Someone tell me if the math is off so i can make the correct changes before its too late!

We made a sister plate from 4" x 6" x 3/8" flat, that bolts inside the frame rail to beef it up due to the extra lifting stress, then added a bracket that bolts to the top of the rear end that, combined, make a solid mount for the lift cylinder. The picture doesn't show it, but there has been a gusset added to spread the load out on the rear end bracket. The back plate had to be cut to allow the lifting side of the rock shaft to extend past the plate approx 3". The top lifted side of the rock shaft will be cut after the innermost hole to allow the lifted tugs to travel up into the rear fender area.

If my math is even halfway correct, and this is a calculated guesstimate btw, the cylinder is a 1.5" bore, the lifting side of the rock shaft from shaft to hole center is 3", the lifted side is 3.25", cub recommends a 600psi relief setting. So, 1.5x600= 900 lbs linear lifting force, its not quite a 1 to 1 ratio so for a quick estimate, we will figure approx 875 lbs at the rock shaft lifted hole. Can't remember lower arm ratio but its closer to center than not, so divide 875 by 2. Giving us 437.5 lbs of force. Since its not centered, we will just say around 400 lbs of lifting force at the swivel ends of the 3pt arms.

While I cannot prove the lift force numbers yet, with the three point in this configuration, I will tell you that there is roughly 13.5 to 14 inches of travel at the lift arm ends.

[Berwil]

If you do the real math, your numbers are close. If I recall, cub specs 500-625 psi for the implement relief. I calculated all my numbers using 600 psi, and was disappointed with the performance of my 3 pt. I bought a gauge and found out I had 515 psi pressure. In spec, but could be better so I shimmed the spring, now it's running at 650 psi. Should be much improved for tilling this spring with an extra 150lbs + lifting force. Point of the rambling is you probably want to check the actual pressure when you get it together.

Bill

[IHCadetCollector]

Originally Posted by Nightow1

Rearend and frame are matched up and wheeles are on temporarily till I paint them. I painted the frame with black rino liner. I know its supposed to be red but I wanted it to be easy to clean and last.

Begining to look like an 88.

[Rescue11]

Oh yea, that will help a lot. I would think that even with the 515 psi that it would handle it. But more power... ohohoh, is better.. to an extent! I recall jmech saying the 82 series and up will handle approx 700 psi or better if is not constantly used at relief pressure.

Might post this else where, but does anyone have an idea what a stock cat 0 will lift at the 3 point arms?

[J-Mech]

Originally Posted by Rescue11

Oh yea, that will help a lot. I would think that even with the 515 psi that it would handle it. But more power... ohohoh, is better.. to an extent! I recall jmech saying the 82 series and up will handle approx 700 psi or better if is not constantly used at relief pressure.

Might post this else where, but does anyone have an idea what a stock cat 0 will lift at the 3 point arms?

782's spec is 5-625 psi. 982 is 7-900 PSI. You could go to 1000 psi with no issues. If you really wanted to push it 1100 but I wouldn't go any higher. If it was mine I would set it at 1000.

No your math is wrong.

1.5" cylinder= (1.5/2)^2*3.14= 1060 lbs of force at 600 PSI.

[Rescue11]

Yea, I figured that out last night, I just multiplied the bore by the psi instead of π×R2. Error in his favor tho! So you don't think that 1000 would hurt anything. Well cool, thanks!

[Nightow1]

I think these are the Pix rescue11 wanted me to post.