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4494 rear steering

T

timmis

New User
My 4494 rear steering locked to 1 side - I tried to overide the control box by running a 12v source to either side of the control selenoid but get no response -ground is OK -- am I thinking right that the selenoid is bad - the 2 sides show different levels of resistance. Any idea on replacement cost or procedure. Thanks
 
Did the rear steer turn to the right? If so, the small metal screen filter on the rear steer valve is restricted or plugged. The rear steer valve is a pilot operated valve with the pilot oil passing through the filter. It is under the 1 inch hex plug on the valve. It protrudes from the valve a little over and inch. The screen is a little bigger than a sprayer screen in a nozzle tip and watch for the spring. Also you need to change the rear steer filter next to the valve. This is the first thing to check and it is a cheap repair. Fixes problem 90% of the time.
 
Ok - the wheels are turned to the right -- I"ll check the filter out on Monday. So the selenoid isn"t a concern even though it"s testing different ohms? Am I thinking right that a 12v applied to the 2 different non ground prongs should move the wheels? Is there any bleeding procedure for the valve? It does make sense with what you"re saying. I kind of want to know how it works -- the rear steer is intermitant- i think the sensor is out of adjustment - I"d like to be able to manually center the wheels if the sensor won"t work that day. Thanks a bunch - I"ll sleep a little easier knowing I may not have to replace that valve.
 
I don't think you want to apply 12 volts to that solenoid! I may be wrong and will be again.

If the little filter don't fix it you may be in for an adjustment of the internals of the steering valve takes a couple 2000 psi gauges and some fittings.

This from doing my 4490 if it is the same.

Tom
 
a reg 9v batt works well for bypassing controller. Touch 1 post to grnd stud and other to either post /stud. I vote for the filter/screen thing as turbo said.
 
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