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425 54 inch mower deck engagement kills engine
| Mike |
I have a 2001 425, when pulling the yellow PTO button to engage mower deck some times the engine will shut down, it's not electrical, the mower deck tries to turn and then it dies, it's like the mower deck is dragging the engine down. Any suggestions would be greatly appreciated.
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| mark |
disconnect the pto from the deck, engage the pto drive to confirm the problem mode.--Is it tractor or mower deck. I would suspect the problem to be in the gearbox of the mower. with the drive shaft disconnected from the tractor, rotate the gearbox input (listen/feel for gear obstructions as you rotate the drive. If necessary the blade drive belt could be removed to be sure the noises and hesitations are isolated in the gearbox. The gearbox bearing and seals can be changed for just over $100 in parts by a good mechanic. Use a bearing distributator company ie (motion industries) they are cheaper than JD and are giving you the same brand of bearing as orginally installed. A new gearbox is about $550. Good luck
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| Mike |
Thanks for the quick response, I can't find the maintenance book for the deck and wasn't sure if there is a lubrcation access point for the gearbox? I will perform your trouble shooting steps tonight after work. Thanks again.
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| mark |
There is a hex socket plug on the side of the gearbox a little more than 1/3 up from the bottom of the box. The correct oil level is what the box can hold when the plug is out of the hole. (about 4 - 5oz.) The manual says to check the level every 100 hours, I check mine when I sharpen/change blades, about every 3 to 4 cuts. I cut about 2.3 acres per week. years ago I had a gearbox fail when twigs were cought and wedged in the area between the drive pully and the output shaft of the gearbox. the oil seal for the output shaft was distroyed and the 90w oil leaked into the belt area to be soaked up by clippings. There was no evidence that my machine was bleeding to death until the gearbox seazed and stalled the engine.
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