lubing drive unit - Snowblower Forum : Snow Blower Forums
 
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post #1 of 10 Old 11-01-2015, 08:38 PM Thread Starter
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lubing drive unit

Hi, Im not sure of the correct name but can you lubricate the drive unit that the friction disc rides against and has the large drive pulley on it? This is on a 69 Ariens.
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post #2 of 10 Old 11-01-2015, 10:55 PM
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Its called a hex shaft and yes you should lube it. You just need to keep it from getting on the friction disk and wheel.
donyboy73 has videos showing the process.
Took a quick look and didnt find the exact one id remembered, but there ane many awesome videos here.
Donyboy73 youtube channel
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post #3 of 10 Old 11-02-2015, 07:39 AM
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If you're asking about the drive plate it's not something that's normally lubed.
I've seen them both aluminum which wouldn't need it at all or in my older Ariens they are steel. The steel plate once cleaned up with a wire brush, sandpaper or steel wool could be lightly coated with oil as in wiped down with an oily rag when stored but you'd need to make sure it doesn't get on the friction disc's rubber and clean it all off before putting it back into operation next fall.


If you're asking about the hex shaft the friction disc slides on that's usually lubricated with oil or a very light film of grease. I like to use synthetic wheel bearing grease. Lasts longer than oil and keeps the shifter working smoothly in way below freezing temps.
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post #4 of 10 Old 11-02-2015, 01:51 PM
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Wow - I would be afraid to put any oil on the surface of the drive disc - in fact, after I clean mine, I hit it with some brake cleaner just to get it extra dirt free.
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post #5 of 10 Old 11-02-2015, 06:41 PM Thread Starter
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I guess I didnt give a good description. I was talking about the shaft that runs from the Large pulley for the drive belt to the friction disc plate. It looks like there are bearings inside the housing on the shaft. I hope that makes more sense.

Last edited by JohnnyDees; 11-02-2015 at 06:49 PM.
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post #6 of 10 Old 11-04-2015, 07:15 PM Thread Starter
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Hi again,

I looked this piece up in the parts manual. There are two ball bearings on a shaft that connects the drive plate to the Large drive pulley. Is there a way to lube the bearings?

Thanks
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post #7 of 10 Old 11-04-2015, 08:08 PM
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In general, No. They're might be something special with your specific model but you haven't posted any information other than year.
They should be sealed. Something like in the picture if yours is like mine. If anything is wrong with it you'd need to replace it.


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post #8 of 10 Old 11-05-2015, 11:52 AM
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It is possible to lube sealed bearings. If you can get to one side of them you can take a small flathead jewelers screwdriver and work it into the outer edge and pry the seal out of them. Once open you can use some carb or brake cleaner on them to clean out the old crusty grease and dirt. Then take an injector needle on the end of a grease gun and shoot some new grease down between the bearings and spin them around a bit. When you are done you can push the seal cover back on carefully.

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post #9 of 10 Old 11-05-2015, 05:10 PM Thread Starter
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Thanks for the replies. I dont think Im gonna take the unit apart. I dont feel any slop or hear anything. Just thought while everything is apart I would do what I can. I just finished dissassembling and painting the tractor. 46 years is a long time for a sealed bearing but they seem ok as do the ones on the hex shaft. I just changed the axle bushings and will replace the friction disc.

PS its a 69 6hp
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post #10 of 10 Old 11-05-2015, 06:52 PM
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Sounds like the spindle housing bearings. Unless they are howling, they shouldn't need anything. After all, they are only 46yrs old...
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