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I took apart the drag link on my M51 dump truck and discovered that one end is missing some of the internal parts. Anyone have an idea where I might find a drag link rebuild kit. I've searched around on the internet but have been unable to find anything other than buying a used drag link to...

Can anyone tell me how many turns lock to lock a M51A2 should have? I have looked at the maintenance manual and operators manual and don't see this information spelled out anywhere.

I am having a steering problem with my M51A2. Here is what I have discovered so far. With the front wheels off the ground and the engine not running, I am able to turn the steering wheel to the left just over 1 3/4 turns at which time the left wheel hits its mechanical stop. I can only turn the...

Another Steering Problem with a M51A2 Started a new topic for my problem.

What caused the air to be in the lines? Were you having problems with progressively harder steering prior to bleeding the system?

Please keep this thread updated on what you do. I'd like to learn from your experience of what it took to fix the problem. Good luck in your repairs!

Unfortunately, I have not had the time to work on this problem with my truck and it has been sitting for over a year without being driven. It got to the point the last time I drove it that I could hardly turn right at all. I had taken it somewhere and had to plan a route home using all left...

That's interesting information. The generator I was working on (donated to the fire department from the DNR) didn't work that way. The fuel pumps always ran and appear to provide pressurized fuel to the injector pump. I'm betting some mechanic changed something in the fuel system over the years...

You say the fuel at the injector pump is just gravity fed? Does that mean the fuel pumps are not working? It should be under pressure. I got the generator I was working on running. I ended up going around and around the fuel system making sure I was getting pressure to and out of the injection...

Add Me To the List I got it too. Do we drive our trucks to this occupation? Should I expect to be arrested?

Parts On Order Thanks for the reply Topo. I called up Memphis Equipment and have the parts coming. They also had a rebuild kit for the control cylinder on the steering box.

Thanks for the reply Trango. Does anyone know the model number for the old style Roass Hydrapower unit? I can't get to mine right now to look it up.

Still Hoping For An Answer I'm still hoping someone can give me an answer to this. I've seen rebuilt steering boxes for sale on Ebay but not the kits to do it.

Has anyone here converted a M51 series truck from the old style power steering that it originally came with to the newer M800 series power steering box? How difficult of a job is it?

Does anyone know if there is a rebuild kit available for the Ross steering gear in my M51? I'm having some problems with it and think I may need a rebuild. If it is not available where should I look for a new steering unit?

Just to nit pick here - it's a damper not a dampener. Dampers take away vibrations. Dampeners make things wet. Just something one of my professors once told us in class

I hate my 5 ton now that the steering doesn't want to work right. Still have to figure out what is wrong

Fluid of Choice? Ok - one more question. What do you use for power steering fluid? The lubrication manual says either OE/HDO 10 or OEA. I don't know what either of those mean. What is a non-military substitute?

More Problems Today I had my truck out today for a project and developed some new problems. At first it was acting like previous - no power steering for left turns and right turns had power assist after a brief restriction. After driving for a bit I came up to an intersection where I had to...

Bleeding the System Can you give me a brief description of how to bleed the lines or tell me what TM to look at? The TM's I've looked at so far don't seem to be the same power steering system as mine.