The hubs also have an orientation hole near the shaft. "Auger Drive Chain Adjustment - The two auger mounging hubs have twelve holes in an eccentric circle around the auger mounting shaft. I am used to my single stage Wheel Horse Blower, so do you recommend over driving the Kubota blower to get the same performance? Since I have it apart right now replacing bearings, sand blasting and powder coating, it would be the time to make the change.īTW, I do have the manual. Rust Addict, I am restoring a B748 (I think, the model number is gone) to use on my B7100D. Still like the overdrive regardless, now looking for more power, maybe a B7100! It may be possible to keep the stock belt length with a new smaller pulley if the tensioner has enough travel? Live and learn. The clearance on the chain housing is a nightmare to open up, and the pulley has no clearance issues. Also, I recommend changing the pulley effective diameter in place of changing the sprocket size. McMaster Carr has replacement pulley's relatively cheap, it's likely worth having one on the shelf for a backup. If your lucky the hub will pull off easily, if you can get a puller on it (uggh), 3" holesaw would be handy. It's a real bugger to get the hub off to do a proper weld on the bench, I had to pull the shaft out to drive the it thru the hub using the vice. If if breaks again, I'm going to look into a quick disconnect hub and pulley and use bolts with notches in them to function as shear pins. I put 6 spot welds on the corners of the hex and put it back in. It would appear that there was a head on the pulley that was swaged over the face of the pulley to hold on the hex. I found that the hex was a bit loose, and no press fit needed once the bent metal was filed off. This time bigger than stock spot welds in all the corners. When you overload the blower in 10" of deep slushy snow "mashed potato's", the pully can fly off the shaft! The fix will take a few minutes with a hand file and then a vise to press it back on. The snowblower manufacturer didn't put in any shear pins, instead a break away pully hub. I've down loaded the PDF and could repost the parts list and assembly page if anyone has needs for it. I've found a complete parts list and diagram for it on-line under the Snowcaster snowblower name from the Case Hi-Drive series tractors. If anyone is looking a buying one, I'd recomend spending the money on two stage unit or a plow instead, unless the old single stage is "included" or just too dirt cheap. The last bit of concerns was that drive sprocket really needs a full wrap chain gaurd, I wasn't liking knowing there is a constant rooster tail of oil, snow, and sand that spins in the direction of the operators seat. All in all, I've been more inpressed with a Toro Wheelhorse 520H with a 44inch 2 stage thrower on it. For next year the skegs will be steel and adjustable height, and I'll try some different heights. I've got a bunch of rocks in the driveway, so the 1.5" skid feet helped from not picking up many, but this may have defeated the design of the unit. It did love the heavy banks at the end of the driveway. It seemed like I needed to be in 5th gear to do much to do more than drizzle snow out the shoot on the main parts of the driveway, more like a rotary plow than a true "blower". It saved a lot of hard pushing on the old Honda 4x4 with the 5 foot plow on it. This was my first winter with this tractor. Thanks for that belt number, I'll mark that down for when it's time.
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