Re: Re: Re: 684 Power Steering

Posted by tom on October 17, 1999 at 20:23:44 from (199.120.71.103):

In Reply to: Re: Re: 684 Power Steering posted by Plant Doctor on October 17, 1999 at 17:08:47:

In the bottom of the multiple control valve, the
block the filter is attached to, there is a flow
divider valve. If you remove the hex plug, about
1 1/8 wrench, the valve and spring should push
itself out. Often it sticks thus shutting off the
flow to the steering. If it is stuck, sometimes
you can blow it out. Put a bucket under the valve
and start the engine. Be carefull! It will shoot
a lot of oil if it comes out, be ready to shut off
the tractor. If it still won't come out, I have
used a thread tap to remove the stuck valve.
Gently tap it into the end of the valve and try to
work it out. If the bore is damaged, I have used
a brake cylinder hone to smooth the bore up. Most
of the valves that I have seen stuck have done so
because the customer installed the filter bypass
screen on the wrong side of the filter. When this
happens, you have no filtering at all allowing all
debris to enter

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