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18 5 hp 42 deck mtd shift on the go Drive quit working

I can see smoke coming from underneath. I just replaced the blades and belt. This was given to me and I don't have any manuals for it. I'm not sure how the drive works. I had a Snapper riding mower many years ago and it had a plate on the bottom of the engine and the drive ran off of it. (Not sure how to describe it.)

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SOURCE: middle blade in 3 blade mower for ride on does not seem to cut?

Raise the deck and reach into the bad blade and try and turn it. If it turns easily then try to wiggle the blade up and down. If it moves up and down then the bearings are bad. You will have to remove the shaft and install new bearings. It is best to take it to a shop that can replace them. If you try and beat them off with a hammer you will probably mess up the shaft. I know from experience. You might be able to buy the whole new shaft with bearings already installed pretty cheap. Just find your part number and go to www.jackssmallengines.com and input the part number into the search box. They have reasonable shipping prices. You can also go to your local small engine repair shop they might even have free shipping.

Good luck and let me know if this helps.

thanks
roundo4

Posted on Sep 06, 2009

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I have a troy bilt 42 inch 17 hp lawn tractor. The problem is when I cut grass and i get in some thicker grass the blades turn off then I back out the blades restart. The engine never bogs down


One or more of your drive belts is in need of adjustment or replacement, maybe. Possibly, your electric (or manual) PTO clutch could also be adjusted. You do have the spring tensioner on the deck engaged, right? You say the engine doesn't bog when this happens so I am inclined to think "clutch" and/or "PTO belt" to the deck and/or the "deck tensioner" are the things to check.

The tensioner will be the easiest, it is a handle on the left side ON the deck. Has a BIG spring on it. Make sure it is engaged.

Is yours a Troy Bilt manufactured in Troy New York or is it another manufacturer (MTD?). Troy Bilt is actually out of business, having sold the Troy name to a variety of makers depending on the model line. I don't have the run down on who makes what any more (tillers, chippers, mowers, blowers, trimmers, etc.), but Troy Bilt of Troy, NY is no more. :-(

I have a 16 HP Troy with 42 inch deck driven through a electric clutch. I also have a "grass pump" on my deck. Important maintenance tips: Keep the bearings greased, keep the deck clean underneath. The belt on the deck should have the tensioner released when you are NOT mowing. Keep the blades sharp and in good repair. Mow with engine at full speed. When you get to areas of heavy growth, slow the tractor down (hydro drive) or reduce to a lower gear (gear drive). NEVER adjust speed using the "clutch" (hydro drive or gear drive). When you engage the blades (electric or manual) always have the engine just above idle, bring the engine speed up slowly to preserve the belts and reduce stress on all components.

I am sure this is the fix for your trouble. If there is anything else or if I missed the ball, please let me know and we will go further.

Thanks for your question @ FixYa.com

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1 Answer

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Something is locked up underneath, something is preventing your belt from spinning. I recommend going under and inspecting the blade area and also belt area especially if the deck is full of debris. You might even have a frozen bearing or something like that anyhow you need to do a little investigation, pronto buddy. Good Luck

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The oil on your pulley could definitely be the culprit. You need friction in order for your belts to work properly.

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1 Answer

Middle blade in 3 blade mower for ride on does not seem to cut?


Raise the deck and reach into the bad blade and try and turn it. If it turns easily then try to wiggle the blade up and down. If it moves up and down then the bearings are bad. You will have to remove the shaft and install new bearings. It is best to take it to a shop that can replace them. If you try and beat them off with a hammer you will probably mess up the shaft. I know from experience. You might be able to buy the whole new shaft with bearings already installed pretty cheap. Just find your part number and go to www.jackssmallengines.com and input the part number into the search box. They have reasonable shipping prices. You can also go to your local small engine repair shop they might even have free shipping.

Good luck and let me know if this helps.

thanks
roundo4

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