John Deere Replacement Hydrostatic Transmission Lt150, Lt160, Lt170, Lt180 Logo
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Anonymous Posted on Oct 09, 2014

Travel pedals do not engage.

The motor runs fine. When I depress the forward travel pedal or the reverse travel pedal, the mower does not move. What do I need to do?

1 Answer

Dave Bisset

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  • Contributor 71 Answers
  • Posted on Oct 10, 2014
Dave Bisset
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Things to check out. 1. That there is oil in the drive unit. Is there a reservoir on top and can you find a dipstick? A reservoir should be half full at least. 2. Is the disengage lever or rod pushed in? Look to the rear of the machine frame and low down. This disengages a valve to enable the machine to be moved without the motor running. If in the open position the drive will not work. 3. Check that the belt is driving the pulley on the top of the transmission. This normally has a tensioner which automatically takes up the slack. A worn belt can slip or jump off the pulleys. Look at the motor drive pulley to ensure that the belt is still on it. This is NOT the bottom one which drives the deck and has an electric clutch.

5 Related Answers

Anonymous

  • 146 Answers
  • Posted on Jun 09, 2010

SOURCE: JD 3320 tractor with error code 57

From what I can find, that is a 'timeout' error indicating the expected signals from the hydrostatic transmission are not being received. That would suggest that some of the wiring is still not repaired. Could it be the nice doggie pulled out a connector partially and you didn't notice? Make sure all connectors are firmly seated.
Some have seen this error code occur for the simple reason that the battery voltage was borderline low -- those computers are sensitive. So before you take it to the dealer, put the battery on a charger overnight to see if that resolves it.
Hope this helps. If so, please rate my solutions, thanks and good luck!

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Anonymous

  • 1627 Answers
  • Posted on Nov 10, 2009

SOURCE: Scott's L2548 ridng mower, transmission will not

You either have the handle that puts the machine in nuetral in the pulled out position or your drive belt is broke or slipping .

Anonymous

  • 11 Answers
  • Posted on May 05, 2010

SOURCE: 320 john deere mower starts sputtering and pulling

How old is the battery, and is it in good condition?

Anonymous

  • 72 Answers
  • Posted on Nov 17, 2010

SOURCE: my 4210 4x4 with hydrostatic

Hi, the engine will power the hydrostatic drive via a drive belt. See that this belt is in place or if it is worn out and loose. By replacing this belt you should get your machine running again. Hope this helps

philwalker78

Phil Walker

  • 610 Answers
  • Posted on Apr 11, 2011

SOURCE: I have a John Deere LT 133 lawn mower, when I

There will be a faulty safety switch somewhere. Most likely the one on the seat. Regards Phil

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John Deere X320. If at any point while I'm mowing I back up mower will not re-engage.

The wiring diagram shows the reverse switch is normally closed until activated. This would mean forward travel requires switch closed else PTO disengages... same as your experience.

From your description of progressive failure I suspect the switch has failed or has come loose and moved from it's normal position.

Go to the JD website below and search "reverse switch". A parts diagram should display. Look for item 15, part number LVA13307

https://partscatalog.deere.com/jdrc/navigation/equipment/61166

The reverse pedal or linkage must somehow activate the switch.

There could be a problem with the PTO switch or safety interlock module or electrical interconnections so if the reverse switch checks out, further troubleshooting will be necessary. Start at the reverse switch and work your way to the PTO switch then the interlockmodule.
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I'm going to guess you have a riding lawn mower or lawn tractor. The pedal for those types of mowers controls the transaxle ( rear wheels, transmission and differential basically). If the pedal move properly and it was working ok when it was stored, then check to see if you can push it with little effort. On most transaxles there is a disconnect rod to disengage the transaxle for towing the mower without damaging it. Pulled out for disengaged and in for engage. If that all checks out it could be very low on transmission fluid or the drive belt might be off or broken depending on which type you have. If it is low on fluid, you have a leak. Hope this helps.
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I have had this exact same problem, doesn't happen everytime, but when it does it's scary. I depress the gas pedal, the mower moves forward, it has a hydrostatic transmission so when I release the gas pedal it is supposed to stop, but doesn't. I slam on the brakes but they have no effect at all, have to turn it off with the key to avoid crashing. The thing is the brakes work when this is not happening.
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You didn't specify a brand or type but it sounds like a hydrostatic drive model and if so, it is 1 of 4 likely things

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