Case 1494 Top, (Sensing,) Link Question

roycec · Jun 30, 2015

Hello, all.

I have recently purchased a Case/IH badged 1494. The lower links are Cat 2, however the top link mount seems to be Cat 1. I have checked around, and the 1494 is listed as being a Cat 2 tractor, (as well it should be.) Also, I can only find one part number on the Case/IH web site for this shaft in the 94 series tractors, (K929808, iirc,) but no specifications for the part itself.

Can anyone shed any light on this for me? I can't imagine why an 85hp tractor should have a 3/4" top link pin.

Thanks in advance.

RGMartin · Jun 30, 2015

That is how they are supposed to be. The top link that came with them had a 3/4" end and a 1" end.

The 3/4" pin is way more than adequate, i have never broken one even with doing more than my share of stupid things with it. They sense at the top link, and have large springs inside that housing which dampen any shocks that would brake a pin.

That said they are only 75 PTO hp.

roycec · Jun 30, 2015

Gotcha. I was afraid of that. I was hoping to use this tractor to mount my Long Mfg. backhoe to. It broke the Cat 2 mounting bracket on my old IH 656, throwing me over the controls and onto the boom. I was hoping that the sensing springs on the 1494 might help to dampen some of the stress, but don't really know if I want to go through with mounting it to a Cat 1 top link.

Last time, I was lucky.

I'm assuming that the "shaft" with the top link mounting yoke from the 1494 is forged - the one from the 656 was cast. Still, I just don't know.

Yep. What I have found on the 1494 is a claimed 85 engine hp, and 75 pto hp. No Nebraska testing, although the previous 1490 performed at only 70.51 at the pto and 60.31 at the drawbar.

I'm confident that this machine is up to the tasks of making hay, loader work, and other general farm chores using the implements and equipment that I have. It's just the idea of being thrown again, and the idea that perhaps next time both I and the backhoe might together wind up in the hole that I am digging.

RGMartin · Jun 30, 2015

You will brake an import top link long before you brake that mount.

They are a solid 75 HP. Same engine as the 1410(80ish hp) except the injector pump. They derated the 1490/94 to 70/75 hp respectively because the 1690 and 1594 were not living up to expectations. It wouldn't have looked good if the 1494 was making the same power as the 1594(which it will easily do). Someone on here did some dyno tests IIRC, the 1494 engine was doing 100+ on the PTO, with only tweaking the fuel.

roycec · Jun 30, 2015

You will definitely get no arguments from me on that one. An import top link is no comparison to the attachment point on this machine. Night and day. The tractor's build is far superior.

Here's what the backhoe did to my Farmall 656's Cat 2 mount. One has to be very careful with it, as it can yank the tractor around like crazy, even with the outriggers down.

Luckily, I had just repositioned to dig out a small stump after having to bury a cow. The outriggers were up and the hoe was in transport position, but at least it wasn't turned sideways or over a large hole.

That's great to know about the 1494's engine. Is the rest of the drivetrain up to that kind of power? I AM really impressed with the build quality of this tractor.

RGMartin · Jul 1, 2015

(quoted from post at 20:28:20 06/30/15)

That's great to know about the 1494's engine. Is the rest of the drivetrain up to that kind of power? I AM really impressed with the build quality of this tractor.

In a 4x4 I imagine it would hold up fine. In a 2wd, you might have ring and pinion issues if used in lower gears and heavily ballasted.

Is yours a syncro or Powershift? If syncro, don't use the underdrive(shift lever with rabbit and turtle) in low for any sort of heavy pulling.

roycec · Jul 1, 2015

Thanks, by the way, for all of the info.

No regular heavy drawbar work for me. I am a livestock operation, and most of what I do is more pto oriented. Disc MoCos, balers, and the like. The heaviest pulling that a tractor sees around here is moving a loaded gooseneck hay trailer, pulling logs out of the woods, or pulling another tractor out of the mud.

This one is a powershift transmission. It sometimes seems a little slow to upshift, but I notice that more when I first get going in the morning.

Speaking of drivetrain, what do you use for fluid in your final drives? I don't see much reference to the "ETHB" spec, other than explanation for what the acronym stands for, and a description that says that it's somewhere between 30 wt. and hydraulic fluid.

RGMartin · Jul 1, 2015

I use Hy-tran or equivalent(as long as it has a wet brake/clutch rating) for all the wet brake DB final drives.

roycec · Jul 1, 2015

Okay, thanks.

Once I replace some AC components and fix some minor electrical issues, I'll be ready for her to hit the field.

Thanks, again!

Case 1494 Top, (Sensing,) Link Question

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