the blades on a john deere lawn tractor will not rotate when gear is engaged?
Probably 90% a belt issue. Maybe the belt slipped off. If it's worn and stretched a bit , they will come off when engaged / disengaged. A worn belt will still work to some degree at least to let you know the blades will turn, so it had to have slipped off. Do you hear the engine load when engaging? THAT would mean somethings locked up within the belt path, and it could be as simple as the belt slipping off and pinched in a pulley (you'll smell burning rubber). Depending on how old the mower is , it could be shot and bad pulleys – though usually they don't all go out at once. If the blades are jammed , the engine will load, so you'd tell.
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5 Responses to “what would stop the mower blades on tractor not turn when ingaged?”
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May 10th, 2008 at 2:27 pm
An object jambed between the blades and the deck under the mower.
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May 10th, 2008 at 2:31 pm
or the belt is wore out
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May 10th, 2008 at 2:31 pm
the belt might be broken or the pulleys might be stripped. also if the belt is not broken it might be stretched out to much to turn the pulleys
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May 10th, 2008 at 2:56 pm
Lots of options:
1. Blades are jammed (as noted above)
2. Belt is broken or stretched (ditto)
3. Belt has slipped off one or more of the pulleys
4. Idler pulley spring broken or disengaged resulting in loss of tension.
5. Belt incorrectly installed
6. Electric clutch or electrical connection to it not working
You're just going to have a look and do some troubleshooting.
References :
May 10th, 2008 at 4:46 pm
Probably 90% a belt issue. Maybe the belt slipped off. If it's worn and stretched a bit , they will come off when engaged / disengaged. A worn belt will still work to some degree at least to let you know the blades will turn, so it had to have slipped off. Do you hear the engine load when engaging? THAT would mean somethings locked up within the belt path, and it could be as simple as the belt slipping off and pinched in a pulley (you'll smell burning rubber). Depending on how old the mower is , it could be shot and bad pulleys – though usually they don't all go out at once. If the blades are jammed , the engine will load, so you'd tell.
References :