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Instead of purchasing a replacement spindle for your riding mower deck, you can repair the spindle for a fraction of the cost by replacing just the worn-out bearings.
Steps
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Remove the deck from the mower. This will make it much easier to remove the spindle. -
Remove the blade and the pulley from the worn spindle. You may want to repair both spindles even though only one is showing symptoms.Advertisement -
Remove the worn spindle from the deck. Be careful when removing the bolts. Use penetrating oil and let it soak. If the bolts break off, don't panic. You can drill and tap new mounting holes slightly offset from the original ones. -
You must now dismantle the spindle assembly in order to replace the bearings. Take the spindle to the bench and suspend the casing over the jaws of a vise or similar object. -
Reinstall the pulley nut a few turns onto the spindle shaft. -
As shown in the photo, strike the nut with one sharp blow from a small sledge. It doesn't take much. This should force the shaft out of the spindle casing. -
At this point, you should be able to remove the shaft from the spindle casing. You will be left with a spindle casing with the top and bottom bearings exposed. -
Using a screwdriver, tap out each bearing from its seat. -
Write down the number stamped on the side of the bearing and go to your local auto parts store to purchase a new one. -
Clean all the parts well. -
Press one of the new bearings into the lower bearing seat. -
If there is a sleeve that fits over the shaft within the spindle casing, then make sure and place that into the casing before pressing on the upper bearing. -
Press on the upper bearing. -
Assemble the shaft to the spindle. -
Using a pipe or socket, press or tap the retaining sleeve onto the spindle shaft. It will come rest against the inner race of the upper bearing. -
That's it. Put the repaired spindle back onto the deck and you are good for another 5 years or so.
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Community Q&A
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QuestionAre the blades/spindles able to turn in both directions?Community AnswerSpindles can turn in both directions, but blades have a specific direction due to one side having a cutting edge.
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QuestionHow do I replace the spindle on a John Deere lawn mower?Community AnswerJust follow the steps in the article.
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QuestionWhat should I do if the spindle won't come off?Community AnswerUse WD-40 on the screws, and if that does not work, heat them up with a torch. If that does not work, drill them out, then buy a new spindle and use a thread protector on the screws.
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Tips
- A grease fitting was added to the spindle. Keeping the thing packed with grease may help a bit.Thanks
- Before installing new mower deck spindle bearings clean the big housing surface well then, add 1 or 2 drops of Red or Blue ‘Thread-Locker’ to it just prior to pressing the BRG into place. To be sure it’s seated snuggly into its housing use a piece of pipe or a socket the exact size of the bearings Outer ring & tap it gently to seat it. Don’t drive it in by the Inner ring it’ll ruin your new bearing.Thanks
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Reader Success Stories
- "I came to this site to find out how to change all the spindles, but after watching the first pertinent video, I found out how to just change the bearings instead of the spindles themselves. Terrific site!" ..." more
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"I came to this site to find out how to change all the spindles, but after watching the first pertinent video, I found out how to just change the bearings instead of the spindles themselves. Terrific site!"
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"The step-by-step instructions and pictures were great and the easy word selection made it easy to understand."
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