Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Ariens ST824 (924082) Tractor disassembly/axle bearing replacement
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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manjestic
Location: North Shore, MA
Joined: Oct 31, 2011
Points: 87
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Ariens ST824 (924082) Tractor disassembly/axle bearing replacement
Original Message Jan 8, 2012 10:31 pm |
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I've repainted my blower housing, impeller, auger and chute (pictures to come) and replaced the impeller bearing and got the engine purring like a kitten. I've got the whole thing back together...almost, when I notice that there is some play in the axle where it penetrates the tractor housing. I was going to address the tractor in the off-season but with no snow in the foreseeable future and backup equipment available just in case, I'm thinking of replacing the bearings and any related h/w. My problem is twofold. How to disassemble the drive axle and how to identify what needs replacing. I can't tell if the wear is in the housing or the washer that fills the opening or the bearing or the bearing retainer or all of the above. When I put the blower on the housing and remove the bottom plate, I wiggle the axle and see some movement in the space between the housing and the washer and possibly between the axle and the bearing. Looks like I'm going to have to disassemble it to know for sure. Anyone who has been down this road, feel free to share your experiences. The parts I was looking to replace, according to the parts manual: (2) 05417700 Bearing-Ball 1.45 x 2.19 x 0.63 (2) 06417000 Washer-Flat-Steel 1.140 x 1.718 x 0.134 Here's the starboard side: Here's the port side but the bearing area is not visible:
This message was modified Jan 8, 2012 by manjestic
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jrtrebor
Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539
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Re: Ariens ST824 (924082) Tractor disassembly/axle bearing replacement
Reply #17 Jan 13, 2012 10:29 pm |
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Thanks, I do see them now. There is no play when the two axles are put together, so no need to replace the bushings. On another note, the differential assembly, 43 in the diagram...how does that get lubricated internally? Or is it sealed? I imagine that the pumping grease via the grease fitting on the short axle feeds grease along, up to the splined end and perhaps to the internal gears of the differential assembly.
I need to check for play with bushings 34 and 22. Bearing 14 looks good on my machine.
The diff. is fairly well sealed on the outside. And once the axles are in place there really isn't much of a chance of dirt or water getting in through the center hole. I would assume they are lubed at the factory and that is that. It's usually the teeth that get worn that causes problems. There may be some grease that works it's way in from using the short axle grease fitting. But that fitting is primarily to keep the inner and outer axle lubed. After everything is back together. I usually take a stiff bristle brush and dab stiff grease into the diff teeth all the way around. Not a whole lot, just enough to put a coating on all the teeth after you've spun it a few revolutions. Of the two pairs of bushings. You really want to make sure that they 34s are good. They really wear because of the load that is on them. If they are worn you will know after you clean it up and slide it on the shaft. Sometimes the flange will wear off the end of the bushing as well. You didn't appear to have a lot of dirty grease build up in the housing so the flanges are probably ok. I believe that is what causes them to wear. Dirty grease is like valve grinding compound. As long as your in there, if they aren't nice and snug I would replace them. The 22 bushings don't wear as quickly. But are worth checking.
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RedOctobyr
Location: Lowell area, MA
Joined: Nov 5, 2011
Points: 282
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Re: Ariens ST824 (924082) Tractor disassembly/axle bearing replacement
Reply #22 Jan 20, 2012 10:22 am |
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jrtrebor, I bought the Ariens axle bearing part number in my IPL from Jack's Small Engines. My bearings had a "flat" outside diameter, if I'm correctly interpreting what you mean. The outside diameter appeared to be a constant size (2.190", I guess, from the description in manjestic's first post). If they were in fact convex/concave (so that the diameter was, say, 2.160" at the outer edges, and 2.190" in the center), then it was subtle and I don't recall noticing it. From manjestic's pictures, his unit is identical to mine (924082), as best I can tell.
Not trying to dispute that many/most may have a shape to their OD. But I don't recall mine seeming like that. I still have the old bearings, but they're so rusted up it might be difficult to check conclusively. If my new ones actually had a profile to the OD, and I simply didn't notice, my apologies.
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manjestic
Location: North Shore, MA
Joined: Oct 31, 2011
Points: 87
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Re: Ariens ST824 (924082) Tractor disassembly/axle bearing replacement
Reply #23 Jan 20, 2012 2:38 pm |
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Thanks for all the replies; there will be a little something extra in your paychecks this month. I haven't received my new bearings yet, but that's another story. So, I can't measure the difference. I put the originals in and secured the retainer to see if there was any wear in the retainer. The bearing (outer race, if that is the right term) did move vertically maybe a millimeter within the retainer. A picture would be best here, but the original bearing is flat enough that it will stand on end. That is, the there is no concave- or convex-ness to it. Though the edges are radiused.
This message was modified Jan 20, 2012 by manjestic
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