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removing a worn mandrel
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Posted by chrissymustang (My Page) on Tue, Oct 27, 09 at 15:58
| craftsman dyt 4000. My mandrel on the left side is shot--the star pattern is worn down/off. So the blade is off since it spins freely, How do I remove the nut on top of the pulley? I've used a piece of wood on the right side blade but the pulley just slips on the belt when I apply pressure on the wrench. There's nothing on the bottom side of the shaft to keep it from turning. Ideas?? |
Follow-Up Postings:
RE: removing a worn mandrel
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| Easiest way is w/ an impact wrench. Not in your tool box? Try to hold the pulley with the gripping the belt near the pulley of the mandrel you are trying to remove. That usually works. Or do you have an old belt around you could twist tightly around that pulley using a bar to hold it. If the rest of the mandrel is good, you can save yourself a bit of work and expense by replacing the shaft kit. If you go this route, leave the spindle mounted to the deck. |
RE: removing a worn mandrel
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| I just rebuilt a deck on a 4000 Not that bad, just a matter of dropping the deck on the ground, then sliding it out from under the unit. All bolts sheered off on the old mandrels. But the new mandrels had new bolts! I did replace the two idler pulley's on TOP of the deck, Whole process was $50 bucks (Ebay bought) and 2 hours with some beer sipping in between/ New blades too |
RE: removing a worn mandrel
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| no impact wrench and no old belt. funny thing is i just replace the belt and the old one got tossed a couple weeks ago. I had tried holding the belt, squeezing the loop together but to no avail. I intend to keep the housing assembly attached to the deck and just replace the shaft, if I can get the nut off. |
RE: removing a worn mandrel
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| The guy at the local tire shop may just pop that off quick w/ his impact wrench for a thank you. You can reinstall it yourself by holding the blade. |
RE: removing a worn mandrel
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| I just done that same job on a 42" Craftsman deck (right mandrel). I made a tool which features two lengths of bar steel 5mm in diameter spaced fara apart to fit in the two wholes in the pulley itself. Used rathced to turn pulley nut whilst pushing with the tool the other way |
RE: removing a worn mandrel
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RE: removing a worn mandrel
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Here is an example of a "market available" tool that employs the concept used by marinosp. In the States, this is known as an "Adjustable pin, face spanner, wrench". I'm sure there are a number of other monickers for it as the term "spanner" evokes a very different tool in the U.K. and elsewhere.
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RE: removing a worn mandrel
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| Mownie has all the cool stuff! |
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