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49 blower gearing

661 Views 11 Replies 9 Participants Last post by  jdmaninlouky
I posted on this quite a while ago but I've seen it come up a few times and had some emails about it, so I'll post it again.

For anyone who thinks their 49 blower doesn't throw the snow far enough, try changing the driven sprocket (on the auger) to one with 4 less teeth than what is currently on it. This is the equivalent of the 10% speed-up pulley on the 50" decks. You'll get around 8 feet of extra distance on the snow and probably notice it doesn't plug up quite as easy with heavier snow either. It puts slightly more load on the engine, but nothing serious.

I did this to mine last fall and now I don't have to throw the snow twice just to clear the driveway.
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Art most but all not electric PTOs do occasionally need the air gap adjusted for wear. I would try that first. I not sure on your model but most should have about .018" gap with the PTO cold and the feeler gauge between the disc and the plate that engages it. There should be 3 adjustment bolts to to change this. A call to your JD dealer should be able to confirm that it is adjustable and the correct gap. Basically what is happening now is you are or are not sliding the PTO clutch enough. I would say your battery is a bit suspect and I believe JD recommends you engage at full RPMs. Welcome to WFM. Roger
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