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JD 4400 Won t Start unless press HST pedal a little

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ralpharc
Join Date: Aug 2008
Posts: 2 Spokane, WA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2008-08-06          155868


I can press the pedal a little and it will start and work fine. I thought I had this exact problem fixed under waranty seven years ago. I thought they replaced an electrical component--that never fails--and that was it.

Any ideas out there?

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____________________________________________________________________________________
JD 4400 Won t Start unless press HST pedal a little

View my Photos
kwschumm
Join Date: Feb 2003
Posts: 5764 NW Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2008-08-06          155870


Do the hydro pedals on the 4400 operate potentiometers which might be out of calibration? If so it might be that the tractor won't start if it thinks one or both hydro pedals are pressed. By pressing the pedal you might be zeroing it so it then thinks it isn't pressed. This is a major SWAG on my part. ....

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JD 4400 Won t Start unless press HST pedal a little

View my Photos
Murf
Join Date: Dec 1999
Posts: 7185 Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2008-08-06          155871


A simple adjustment.

There is a micro-switch that senses the pedal position, to prevent starting with the pedal depressed in either direction.

Yours has moved a little so it thinks that neutral is not the right spot.

Best of luck. ....

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JD 4400 Won t Start unless press HST pedal a little

View my Photos
earthwrks
Join Date: Dec 2003
Posts: 3853 Home Office in Flat Rock, Michigan
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2008-08-06          155872


KW: SWAG? Que es? ....

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____________________________________________________________________________________
JD 4400 Won t Start unless press HST pedal a little

View my Photos
kwschumm
Join Date: Feb 2003
Posts: 5764 NW Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2008-08-06          155873


Scientific Wild A$$ Guess. That's how all good science and engineering is done these days :)
....

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