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Author Topic: PTO slipping, replacing pto band?  (Read 3655 times)

DevonB

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Re: PTO slipping, replacing pto band?
« Reply #11 on: November 27, 2017, 12:14:36 PM »
Thanks Haymaker,

Do you have a picture of where the dipstick and fill plug is?

Yes it is just wider than the wheel base, its an older blower and the fan is beat up so it doesn't throw that great compared to a new one. I was going to remove it and reweld L brackets to each of the three fan wings but I ended up just drilling a couple holes and bolting some heavy belting to each one so it rubs against the outer circle. It helped a lot. I also disconnected the top auger. I'm thinking of bolting a metal plate across the top half of the fan/ between the top auger so the snow is forced more to go up and out the spout. I also gotta put some smaller shear bolts in there, it has a 3/4 bolt.
  • Belarus 820

Haymaker

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Re: PTO slipping, replacing pto band?
« Reply #10 on: November 25, 2017, 04:46:10 PM »
Got it fixed.

It isn't a big job if you don't need to take off the 3pt, but as I mentioned earlier, there's a rod covering the bolt closest to the back. So there was a lot of cotter pins to remove which were in difficult places to get at.

But in the end I got the 3pt off. The plate off, gave the farthest screw 2 full turns, and back screw a half turn. Locking the lever in the neautral position, adjusting, and then unlocking, and checking the tension on lever. My oil was also very low, I ended up putting a full 20l pail in there, and still not sure where a dipstick or fill cap would be located otherwise.

We don't have too much snow, maybe 8 inches at most but had no trouble throwing that aside.

If your pto is slipping I highly recommend this fix.

I also ended up removing that rod that was in the way so I don't need to take the 3pt off next time.

I like your snow blower I bet that makes it work a bit in 2 feet of snow eh?   Does it cove the tire width of the tractor?   Years with heavy snow fall they are very handy.
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Haymaker

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Re: PTO slipping, replacing pto band?
« Reply #9 on: November 25, 2017, 04:37:55 PM »
There should be a dip stick on the left side on the transmission.  There is a fill plug under the floor board.  Actually a little cover comes off and you can get at the filler plug on top of the trans.


As for online parts out of the US I find its normally no different after shipping, duty and exchange rates. I'm fortunate I have a former Belarus dealer 10 minutes away who still sells Belarus\MTZ  part.  He stocks all the common stuff and ships parts all over western Canada he says.

For certain parts that are small and light ( for shipping) there is a guy from the Ukraine that sells stuff on ebay https://www.ebay.com/sch/harp2rs/m.html?item=181284965388&ssPageName=STRK%3AMESELX%3AIT&rt=nc&_trksid=p2047675.l2562 .  I bought a seal kit one time from him that was a fraction of the cost even after shipping and exchange rates but it took ..... a month to come.
« Last Edit: November 25, 2017, 04:40:07 PM by Haymaker »
  • Tractors- '93 Belarus 825 with loader and others...

DevonB

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Re: PTO slipping, replacing pto band?
« Reply #8 on: November 20, 2017, 11:01:24 AM »
I was looking into purchasing the pto bands from BelarusTractorStore.com, they were significantly cheaper than any other I saw, although located in the states. Wondering any feedback on them. I ofcourse didn't need to purchase them in the end, but if it happens again would likely just replace since I can get at the plate now much easier to loosen off the screws, and remove the pto.
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DevonB

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Re: PTO slipping, replacing pto band?
« Reply #7 on: November 20, 2017, 10:46:22 AM »
Got it fixed.

It isn't a big job if you don't need to take off the 3pt, but as I mentioned earlier, there's a rod covering the bolt closest to the back. So there was a lot of cotter pins to remove which were in difficult places to get at.

But in the end I got the 3pt off. The plate off, gave the farthest screw 2 full turns, and back screw a half turn. Locking the lever in the neautral position, adjusting, and then unlocking, and checking the tension on lever. My oil was also very low, I ended up putting a full 20l pail in there, and still not sure where a dipstick or fill cap would be located otherwise.

We don't have too much snow, maybe 8 inches at most but had no trouble throwing that aside.

If your pto is slipping I highly recommend this fix.

I also ended up removing that rod that was in the way so I don't need to take the 3pt off next time.
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Haymaker

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Re: PTO slipping, replacing pto band?
« Reply #6 on: November 17, 2017, 12:24:52 PM »
I assume you're sure its the tractor pto and not the slip clutch on the snow blower?  As to be honest I haven't heard a lot of issues with the pto on these.  Mine is 24 years old and does lots of pto work (a lot real hard) and never has given grief.  Does the pto lever pop in place like it should?  It should go over center and snap in place both ways.

Sounds like you pull the pin on the 3pt. hitch cylinder and lift it up to get at the band adjusting bolts.  Might be worth while to pull the seat and the floor cover plate off to see better what's up in there if you haven't already. 

What part of Canada are you in East or west?   As there is lots of places if need be to get those bands be it from a dealer / MTZ or just online.

Did a little surfing and found these videos if you haven't seen them already.  Its amazing as there is literally a video showing every part of these old tractors coming apart or going together but unfortunately they're not in .... English!

This video shows a guy sliding the pto band assembly out of  the trans housing. (2 minute mark)


Then on the bench but he's rebuilding the whole thing it looks like not just the bands.

« Last Edit: November 17, 2017, 12:45:05 PM by Haymaker »
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DevonB

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Re: PTO slipping, replacing pto band?
« Reply #5 on: November 16, 2017, 05:24:17 PM »
Watched some of his videos.

Looks like it isn't too hard to take off the 3pt, just thinking once I go through all that work I might aswell replace the bands. With it dipping down to -20C it sure would be nice to have my truck inside the garage. I also just harvested a buck and the tractor is gunna be in the way to butcher it. I have a half hour to fiddle with it tonight to see how hard it is to take off the 3pt so will go from there. Even if I order now, will be a few weeks till parts come in anyway so might aswell see what I can or cant loosen off. I see a lot of WD-40 in its future.

Does anyone have any experience with this?
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DevonB

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Re: PTO slipping, replacing pto band?
« Reply #4 on: November 16, 2017, 03:32:17 PM »
Thanks for the info.

Unfortunetely the plate that covers the adjusting rods has a rod right over one of the bolts so I can't get at it.

Plus there's no way to get at it from the fron or side directly. Very frustrating. I thought it was 11/16 wrench so I heated it in my forge and gave it a bend so I could get at it at an angle but it doesn't fit, looks like its a 17mm. Will see if I can find one and then bend it into that shape, but its looking more like I'm going to take the angle grinder to the rods above and cut it out to get at it. Then reweld the rods.
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Haymaker

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Re: PTO slipping, replacing pto band?
« Reply #3 on: November 16, 2017, 01:49:02 PM »
Yes id check the adjustment which I believe is covered in the operators manual.  But if the band is toast it is serviced from the rear for the tractor.  You can by a new one or take it to your local clutch/brake shop and they can reline it for you. Which ever is easier I guess.

As for a video try looking through this guy's videos on his MTZ 82 (same tractor as the 825) https://www.youtube.com/user/hrz4x4  He's restoring one from the ground up and has gone through practically everything. These old MTZ 82's are one of the worlds most built tractors so parts are cheap and plentiful.    Also if you search for MTZ 80 or 82 you may find more info. I know I've seen a video on the band replacement over the years. Just can find it now. 
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DevonB

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Re: PTO slipping, replacing pto band?
« Reply #2 on: November 14, 2017, 04:17:53 PM »
Update. I found this information on how to adjust the pto "brakes" or bands here.

http://www.wham.org/Belarus/PTO%20Adjustment/index.html

And I also found and read through a manual, it had another option to just adjust a "eccentric axle" at the back of the tractor but it didn't have a good diagram on how to do this.

I also found a couple places online that sell the "brakes" or bands which will be about $200, but worth it if it is fixed. I plan to try tighten up the bands as shown in the link, basically taking off the top plate and then tightening them a half turn clockwise.

If anyone has info on this before I tackle this would still be helpful, and I still don't know where to check or fill with oil.
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DevonB

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PTO slipping, replacing pto band?
« Reply #1 on: November 14, 2017, 11:42:28 AM »
Hello,

I own a Belarus 820.

I am young and not very mechanical but will tackle any job.

Living in Canada I have a snowblower hooked up to it, and it worked great the first year I used it (about 5 years ago). Its a big snowblower, width of tractor and double auger, and I could clear snow up to the height of the blower easily without ever needing to stop. However a couple years ago I was going a bit too hard with it, plugged up the blower, and the pto stopped spinning. I shut the pto off. Got out, cleared the snow, then kept going, but then as soon as the snow was deep it would do it again. Luckily we didn't get much snow that year and last year I just used the bucket, but it would be nice to get this fixed. I used it last week and we only had a few inches of snow but I had to continually ride the clutch or it would stop spinning.

I'm looking for information/ videos on how to fix this. I was told my oil might be low in the pto. I was told I can possibly tighten up the band?. and lastly was told to put a new pto band in it?

So my questions are 1)where is the cap to fill the pto oil? 2) info or video on how to tighten band? 3) info or video on replacing band?

Again I'm not very mechanical but I have decent tools (a heated garage) and talking with friends and family should be able to tackle this.

Thanks in advance for any suggestions.
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