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Jacobsen mower?
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10624 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Topic: Jacobsen mower?
    Posted: 30 May 2024 at 10:47pm
What makes a zero turn mower want to whine-chatter sound when first moving full pedal either direction? Could it have air in the hydros? How do you get it out? Thanks, Tracy
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 51677 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 4:18am
Indicates cavitation at the hydro pump, check oil level, filter, hoses...Wink
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Codger View Drop Down
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Joined: 23 Dec 2020
Location: Utopia
Points: 2039 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Codger Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 6:59am
What model and serial number Jacobson? Ransomes/Jacobson use many hydrostatic drive vendors.
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10624 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 3:45pm
It is a Jacobsen 445g Turfcat. I think mid 90's about 1000 hrs. Has separate pump for  hydro and engine driven off crank for blades. Thanks, Tracy
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Joined: 23 Dec 2020
Location: Utopia
Points: 2039 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Codger Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 3:59pm
Either "Tough Torque", or a "Hydreco" hydrostatic drive pump from the sounds of it. 
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Lars(wi) View Drop Down
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 7219 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lars(wi) Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 5:02pm
Does the chattering go away after a short time?
I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Joined: 23 Dec 2020
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Points: 2039 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Codger Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 8:09pm
Need serial number to drill down for correct machine. 2WD, or 4WD? Ford gasoline engine?
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
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Points: 10624 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2024 at 10:14pm
2wd with Ford engine.Thanks, Tracy
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