706 steering

Steinman

New User
Have 706 diesel. Steering wheel turns easily either direction as many turns as you like without turning front wheels. Doesn't matter if engine is on or off although it has some assist when on. Will eventually steer when warmed up and moving but still doesn't work well even then.
Changed hydraulic fluid last summer, poor steering condition existed prior to that and has gotten steadily worse with time.
All other hydraulics work fine.
Do not see any fluid leakage from hand pump. The orifice valve appears to be clean but did not take the MCV off the tractor to look inside. Any good ways of testing before having to replace parts?
 
well here again have you put a pressure gauge to it?? There are a lot of could be's here . Does the teltale oil light work on the temp fuel gauge or is the bulb burnt out. Could be low MCV pump out put , stuck flow director valve low pump pressure , blowen gskt and or o/ring in the MCV. Best to get a I T manual and do some reading as so you can get and idea as to what your looking at and working on. If you were in my back yard it would not be a problem and would not take long for me to figure out what was going on .
 
Sound like what mine did. If you can turn the steering wheel, engine off, and there is little to no resistance, it is the hand pump/steering wheel pump. Especially if all the TA and brakes are working well. Start it up, get it warm, take RPM to high idle, and turn it hard/to the front wheel stops, to either side. It should hold, and the steering wheel should "overturn" very little. If you have an I&T manual, it outlines the procedure a bit better. I think you are allowed 3 to six turns and still be considered "operational".

Best of luck.
 

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