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Old 05-06-2004, 06:34 PM
jim dailey's Avatar
jim dailey jim dailey is offline
LawnSite Senior Member
Join Date: Jan 2001
Location: bellingham, ma. & daytona, fl.
Posts: 614
Herky - Jerky Hydraulics

I have a used GDSS w/ 18 hp Kohler. The hydraulics are all over the place. I have adjusted the levers for neutral. The tank is full. The Filter is new. The system has been bled. At full throttle, running along in a straight line is next to impossible. All of a sudden one side or the other will want to grab and throw you off course. There is no such thing as a straight line with this machine. I have to turn the throttle down (there goes blade speed) and constantly play with the sticks to TRY and stay straight. This is my 1st hydro. Should I replace the fluid? Some of it is old. If I change the filter, again, replace the fluid and re-bleed the system, do you think my chances are pretty good at getting somewhere with this? I just hope that I am not looking at new hydro pumps. That can be quite expensive, so I am told. I would appreciate any and all info that anyone is willing to offer. I have the owner's manual and have read it front to back. Thanks in advance to any info that you are willing to share.
jim dailey
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