Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

   Picked up a Deere 826 yesterday.  The thing crapped out during the last storm with a brunt belt and the guy hurt is back shoveling so it got the boot. 

   Nice old buzzard rig but I can't find anything on it at the Deere site.  Anyone know where I can an exploded view?  I tried the usual places that have them and nothing on this one.   It's ID plate has P826J, 127489.  If I google P826J I get new models.  Nothing on the other number.

   The thing works fine after a belt replacement but it only tosses 3 - 8 feet with lots of low splatter.  I tried a few different belt sizes and tensions, and even over tight to insure no slip.  I can't see any slip with the cover off.  It has good grab, no crud in the V's, no obstruction in the housing.  It does have quite a distance from the arms to the lining, 1/2 inch.  The impleller is a 4 blade 12 inch and it should toss fairly well, 15-25. 

   Does anyone have this model and could tell me what it tosses like?  I can't see any problems so guess it's a design problem but at 3-8 feet hard to imagine they could make something that bad. 

   The motor certainly is not the problem, a Briggs Intek Snow 11hp a couple of years old.  I can drive into any condition snow and toss the same distance without engine sag.  Very impressive.  Anyone have a URL to an exploded view on the engine?  I can find one so I assume it a special for some maker.  It's got a 3/4 shaft.  3BSXS 3422HT 275387.  I can't get anything found at the Briggs site.  Googling I get 275385 which is a 10hp but nothing for 275487.  There are lots of hits for 3BXSX 3422HT but no motor like this.

I just finished installing a Clarence Impeller Kit on my John Deere 826. We are supposed to get snow tomorrow and Weds. so I should have ample opportunity to test it out.

I ran it for a while tonight  just to "break in"  the rubber onto the housing and that went fine.

If you have a 1/2" space between the impeller blade tips and the housing that is the problem, without question.  Increasing the rpm won't really help that much. The impeller and housing section of a
blower is basically a pump. And without a fairly tight clearance it won't pump well. Not only that,  the impeller is always spinning inside a wad of snow that never leaves the housing.  It's functioning more like a blender than a pump.

 I had an air drill once that had worn vanes.  It would spin really fast and sounded like it was working well until.
You put the drill under a load by putting the drill bit on a piece of steel.  It would barely spin then. All the air that was supposed to be pushing on the vanes to spin the chuck was finding an easier way out by going through the space between the vanes and the housing. I know that is kind of the reverse of how a impeller and housing work but it's a similar principle.

I recently posted a comment from a Ariens tech that I read somewhere else.  He stated that "if the clearance is correct in the housing you should be able to put a dime on the bottom of the housing and the impeller should sweep it up and throw it out the chute". "When the Impeller won't do the same with a quarter it's time to rebuild the impeller blades". 

When I lengthened the blades on my impeller to where I now have 1/16 to 1/8" clearance (the housing isn't perfectly round) it made a noticeable difference in the throw distance and the ability of the blower to blow both snow and slush.  So much so that I no longer carry a clean out tool on the blower.  The chute just never clogs and I can throw pure slush. 
I really think that decreasing the gap or clearance between the impeller blades and housing is the single biggest performance booster that can be made on a blower.  You can't believe the difference until you see it for yourself.   I've also noticed that because the blower is now so much more efficient at expelling all the snow that enters the housing.  That I can reduce the engine speed, use a higher gear and still get the job done with snow depths up to about 4 or 5". It's a wonderful thing!

Jrtrebor:>>If you have a 1/2" space between the impeller blade tips and the housing that is the problem, without question.

 

I agree.   The spacing and the very slow impeller rpm make a big problem.

 

   There are now five people I have heard of that have this style of Deere and have the distance problem.  A guy on another forum put CL’s kit in and is using his but he did not give the improvement over the original short distance.  Reading about his made me think about mine more.  I checked the impeller area again and realized I had ½ on one side and an inch on the other at 180 from the ½. 

   The impeller arms are very small to boot.  With a CL kit it would be good to extend past the flat up onto the curved part of the arm.  If mine got a kit I’d still be away from the barrel on 1/3 of the travel of the impeller.  I think mine has it’s impeller shaft hole slightly off from center.

I read it is straight down to 90 degrees out to the side of the chute that matters.  It was said that the rest doesn't matter.

Sorry Shryp, can you repeat that but differently?

Is that the last quarter of rotation before the chute?

Yea, I read somewhere that it is the last quarter of the sweep that really matters.

I got a chance to run my deere 826 today with the kit installed. There was a noticable difference. We had about 5 inches of dry, powdery snow today.

I noticed an improvement of about 25-30% in distance. This is in line with what I have read others are seeing. The real improvement is supposed to happen with the heavy, wet slushy stuff.

Anyway, it has turned the machine from being basically unusable to marginally acceptable. Definately not a good as a modern machine, but OK. My take on it is if you have an old machine that runs good but cannot toss well due to the huge impeller gap, it's worth the money. If you really want to pinch pennies, you could fabricate your own kit.

ahw2698 wrote:

That's great and about what I figured.  It would bring it just into acceptable.  If you put a three inch pulley on that it would get it even better.  I tried on mine but without a kit it did not make any difference.   I think the Deere is nice and like the auger clutch allowing a free hand.  It's like the old Ariens machines which are very easy to use.  The Deere seems very well built and mine is clean without rust.  I hate to just have it languish or get the boot for $50.

trouts2 wrote:
That sounds like a fun project for a nice summer day. If it's a bearing with a 2 or 3 hole flange, it wouldn't be too hard to move it over 1/4", or even swap out for a flanged bearing.  Maybe there's even a bigger impeller in your parts pile?

Edit to add: Just looked it up in the parts list. 3 hole flange on the bearing, that's good. But it looks like the impeller and shaft are one piece (?), if so, no swapping the impeller. Though it should make it easier to drill for the kit while it's apart.

What would it entail for me to step up to a 3 inch pully? What I have now is a "two in one" style pulley. One piece of metal with two wheels of the same diameter (2 1/2 I think). I would assume I would keep the drive pulley to same diameter and jump the auger pulley up to 3"? Would I be able to do this with two individual pulleys, or would I have to get a double with the 3 inch / 2.5 inch combo? 

The other question I have would be with what size auger belt I would need with the bigger pulley. Is sizing for that going to be trial and error?