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Troubleshooting a 340U FastHitch
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Posted by PaulW_NJ on August 02, 2006 at 21:04:33 from (70.111.112.70):
I could use some help from the hydraulics experts troubleshooting the FastHitch on my 340 Utility. It is the Tel-a-Depth type hydraulic hitch, which has the FastHitch lever beside the seat on the right side. The control valve for the hitch is up in a control valve manifold under the dash and is connected to the FastHitch lever through linkage that runs under the seat. When I move the lever up (even a little bit) and stop, the hitch continues to move all the way to the top of it’s range. When I move the lever down, the same thing happens but down to the bottom of it’s range. I can’t get the hitch to stay in one position without going all of the way up, or down. I located a Blue Ribbon Service Manual for Hydraulics Troubleshooting (GSS-1280), but I’m stuck on the terminology. I’m not sure how to relate the troubleshooting list of problems to what I am experiencing. Could it be “Control Valve Will Not Center Itself In Neutral”? If so, it suggests a "centering spring" in the control valve might be broken. Has anyone had this problem? Any suggestions would be welcome.
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