beenthere
Super Star Member
- Joined
- Aug 16, 2001
- Messages
- 18,068
- Location
- Southern Wisconsin, USA
- Tractor
- JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold)
Then (according to what super55 writes) sounds like the hydraulic charge pump is a (or the) problem.
Have never experienced the HST chatter on my 4300 at low RPM and usually 1500 rpm's is where I operate.. except when rotary cutting or other PTO attachments (save for the turboSaw that is cutting stumps low at low rpm).
At low rpm and cold tranny oil, low rpm will sometimes cause a hydraulic whine (sing) that a few rpm boost up will cause to go away.
The chatter sound on the video sounds like something locked up.. parking brake holding, reverse pedal in wrong position, internal tranny fail, ??
So far, not a good description of the problem from the OP. Hoping to get more, maybe in the form of another video, from chasing down several of the proposed suggestions.
Naturally interested because I also have the 4300 and like it a lot. None of the computer/electronic "improvements" made to the models that followed.
Have never experienced the HST chatter on my 4300 at low RPM and usually 1500 rpm's is where I operate.. except when rotary cutting or other PTO attachments (save for the turboSaw that is cutting stumps low at low rpm).
At low rpm and cold tranny oil, low rpm will sometimes cause a hydraulic whine (sing) that a few rpm boost up will cause to go away.
The chatter sound on the video sounds like something locked up.. parking brake holding, reverse pedal in wrong position, internal tranny fail, ??
So far, not a good description of the problem from the OP. Hoping to get more, maybe in the form of another video, from chasing down several of the proposed suggestions.
Naturally interested because I also have the 4300 and like it a lot. None of the computer/electronic "improvements" made to the models that followed.