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Old 05-01-2013, 10:40 PM
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andersman02 andersman02 is online now
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Gravely 260z Hydro Squeaking and Chuttering under stress

So got this 260z in great condition other then the hydro system. Speed in reverse and forward is good. Have not seen any air leaks or hydro leaking. Never felt the symptoms of air in the lines like one side not working in the morning or throughout the day, air bubbles in the resevoir. Always runs the same.

The problem lies that when any stress is put on the hydros, like turning on a hill, turning fast, going up hill. Doing cleanups with the JRCO and Bagger unit I really notice it. During these situations the wheels/hydros squeal pretty bad and chutter like they were caught on something (like the wheels hitting the deck) but they arent, Ive checked the clearance.

I did an oil and filter replacment and that didnt help. The mower has 450hrs on it.

Any ideas whether its the pumps or motors? Ive searched but havent found the same issue.
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Old 05-02-2013, 07:42 PM
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Restrorob Restrorob is offline
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Here's a info thread from a few years back, Check these and see if you find anything;

http://www.lawnsite.com/showpost.php...34&postcount=2


Here's a copy/paste from another thread, You may still have a little air in the system;

Quote:
Raise and block the drive wheels off the ground. Start the engine and run about 3/4 throttle, Move the controls full forward then full reverse slowly 8 to 10 times then re-check fluid level.

Set the unit on the ground and test run. I use this method on all brand units with no problems.
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Old 05-02-2013, 11:09 PM
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thanks bob, Ill check those things tomorrow
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