Message for Wardner

Hi, I have been told that you know everything there is about WD9s, Supers, and 650s. My question is this, Did any of them or all of them come with power steering as a factory option? If only the 650s, can it be transfered to the wd9? I need to learn all I can about these tractors. Is there any literature out there that can help me? Thanks!!!

Dave,

You are giving me more credit than I deserve when it comes to 9 series. However, I do have a 650 and some I-9 and W-9's. The later two are parts tractors.

The PS on my 650D will retrofit the WD-9. But I think you may find it difficult to find the parts to make that happen. I have never had to work on my 650 PS so I don't know how the power source differs between the tractors except to say that you will need 650 type live power. Failing that, I suppose you could attach a PS pump to the crankshaft pulley via a driveshaft through the bolster. IH also had a kit for 600-650s that did not have the Hydra-Touch system (live hydraulic power).

The CaseIH parts site does not list the 9 series. You will have to get a 600-650 parts book or I can post some photos of the relevant pages.

Your other options include cutting the steering column and installing a Char-Lynn torque generator. Or you could go with a four port hydrostatic "hand pump" and replace the axle tie-rod with a double ended steering cylinder. Both these methods are expensive and time consuming but might be a better deal as the 650 slave cylinder parts are no longer available. You will also need to hire machine and welding work if you are not equipped.

Click below for a discussion on this same topic where I posted pictures last week.
Click me

Dave,

I should also mention that the 650 type slave cylinder is being sold in the after market. I have seen two different units neither of which would be a bolt on application. They are a universal cylinder for many tractor makes. I saw one priced at $350 and another at $550. Don't know which one would be better.

The directional valve for the steering circuit is attached to one end of the cylinder and the other end of the cylinder is attached to something solid on the frame of the tractor. When the drag link is moved by the steering wheel and pitman arm, the valve is opened in the right direction and provides assist. That type of system works fine on my 650 which has genuine IH steering parts.

Wardner,

This is just a thinking question for thought. As I remember, the early IH 403 combines, before they had hydrostat drive and hydrostatic steering, had a steering booster cylinder that looked like the 600/650 steering system. I wonder if this system could be adapted to the 9/600/650.

Harold H

Many OTR trucks have linkage style power steering. The valving is in a ball joint in the steering box arm, and the cylinder is used to assist the drag link. Slick as anything and stout enough to do it. Jim

Thanks to all for your info!

Wardner, I'm the one who pointed him your way as being our resident "expert" on the 9 series.

His original question was whether factory power steering was offered on the any of the 9 series tractors. I knew it was available on 650's, but seem to recall reading that it was an option on some of the earlier ones as well? Did any W-9's or WD-9's have live hydraulics? SWD-9's?

If the 650 was the first time it was available, I appologize to the original poster for the misinformation I put on the other board!

Oops...just followed your link and saw where the 600's were the first to offer it. Again, sorry for the misinformation!