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Author Topic: 825 driveshaft troubles!!!!!  (Read 9841 times)

imperial1960

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Re: 825 driveshaft troubles!!!!!
« Reply #22 on: March 17, 2017, 12:56:18 PM »
Fredrick its going to be a motor manual here before I can help! Not sure if there is a slip clutch inside trany out box if there is try this output shaft nut see if the nut is loose sorry Im no help here.
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ultracommand18

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Re: 825 driveshaft troubles!!!!!
« Reply #21 on: March 16, 2017, 07:38:31 PM »
Hi there Frederick.  So just reading your driveshaft post, and thought I'd share what I know.  Or think I know.  The 102 originally came with a partial powershift 24 speed, and later just a syncro 24 speed.  They were either the twist shift or standard style lever shift.  This drive train in my opinion would have done the brand much better than the goofy 9, 18, and now 14 speed gearbox used on lesser HP Belarus'.   I'm going on a limb here, but I think that the 24 speed gearbox also was the basis for the 6 cylinder tractors, but with 2 less ranges to give 16 speeds.  And from what I've seen, it is also used on the "new" to N.A. 1220.  When you've got yours all back together, I'd like to know what you think of the tractor for the type of  work you're doing with it.

frederick

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Re: 825 driveshaft troubles!!!!!
« Reply #20 on: March 05, 2017, 11:29:38 PM »
just figures that i would end up with an odd, odd belarus tractor. funny. if needed i will try and get some better pics when we have light. i took that one awhile ago and then got busy forgetting to post it. i will try and call the guy you pointed me towards. thank you lots.

frederick

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Re: 825 driveshaft troubles!!!!!
« Reply #19 on: March 05, 2017, 11:25:22 PM »
sorry i was slow to respond. on my tractor the shaft running to the front diff, at the rear of that shaft it goes into the same casting as my clutch casting directly behind the engine. once inside that casting it stays there, running i think to the trany. and it looks like it gets oiled from the trany oil. awhile ago i pulled the four bolts off the ujoint on the front diff and the shaft falls loose but every thing under there is tight. the other end of the shaft towards rear of engine has no bolts but it seems like it splines inside that casting to make up for any movement in the front diff.

imperial1960

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Re: 825 driveshaft troubles!!!!!
« Reply #18 on: March 01, 2017, 12:49:06 PM »
Haymaker Glad to have you back! Been holding down the fort for you
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Haymaker

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Re: 825 driveshaft troubles!!!!!
« Reply #17 on: February 28, 2017, 07:29:38 PM »
Frederick I sent you a message regarding someone to call.   That 102 was not as common and came with a more advanced 24 speed trans I think.  A little different then a 825/925.

http://www.belarus.ca/legacy/100102e.htm  from the old Belarus Canada site that is no longer in business.
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imperial1960

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Re: 825 driveshaft troubles!!!!!
« Reply #16 on: February 25, 2017, 12:29:41 PM »
Read previous post Frederick says he has a one piece drive shaft with no slip clutch in center of drive line.Would you have a picture of a belarus 102 ?
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ChristianH

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Re: 825 driveshaft troubles!!!!!
« Reply #15 on: February 25, 2017, 10:28:33 AM »
Good day,




The way these tractors are setup is with a short axle coming from the transmission to right under the back of the engine, there is an intermediate bearing/slip clutch housing, and then another shaft that goes out the front of that housing and into the front axle.


The slip clutch is designed to prevent overloading the front diff components and the driveshafts themselves. They do require periodic adjustments.


The design of the clutch is there are numerous inside and outside drive disks, one of each, layered like pancakes. The inside drive ones are driven by engine power from the transmission, and the outside splined ones drive the front axle...



It is important to check and make sure the carrier bearing housing is itself tight on the tractor as they can come loose. Further, it is also important to maintain a proper oil level (should be 80w90 gear oil, full to the TOP of the check plug (the one on the side of the housing).



Now, as yours is slipping, what you do is take the 4 bolts off holding the rear driveshaft to the intermediate bearing... Once this shaft is out of the way, you'll find a castelated nut in the middle, pull out the cotterpin and using a torque wrench, tighten that center nut to 150nm. Replace the cotterpin, and then reattach the drive shaft, using red loctite on the 4 little bolts.


You should be good to go now!


More questions, just ask!


Been a while since I've done it, but I believe the center nut is a 21 or 23mm socket, and the four small bolts are a 13mm head and a 15mm nut.
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imperial1960

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Re: 825 driveshaft troubles!!!!!
« Reply #14 on: February 21, 2017, 01:42:33 PM »
Frederick Im not finding any info or pictures either! On the rear of the front drive shaft there is a transfer box that attaches to the transmission then this connects to the drive line. Just thinking if you disconnect the two levers on the box maybe the gear is not going to full engage or needs adjusting.My book calls it front drive axle intermediate bearing safety clutch.Does it look like the one piece drive shaft has new welds or different colored paint?Could be someone changed it out but my drive line would have to have a carrier bearing because of the offset angle is to steep from front to rear. Could be there is to much backlash at the front axle or rear transfer box causing it to kick out or front axle broken.Not much help here still looking for manual or pictures too.There is a dealer in the USA you could call not sure of spelling Lewiskee in Oklahoma do a google search. I used them for parts a while back. some reading here http://www.belarusguide.com/industry1/MTZ.htm  http://www.belarustractor.com/mtz/
« Last Edit: February 21, 2017, 05:33:20 PM by imperial1960 »
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frederick

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Re: 825 driveshaft troubles!!!!!
« Reply #13 on: February 20, 2017, 06:50:07 PM »
the mtz tractor place tells me they dont know much about older tractors. i have been doing some searching and the belarus 102 is a little hard to find info on. i am just wondering if this tractor has many simularities with any newer models. like maybe a 1025 or mtz 925 or something.  just wondering if there was a update to a one piece front drive shaft and the slip clutch is maybe internal.

frederick

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Re: 825 driveshaft troubles!!!!!
« Reply #12 on: February 18, 2017, 01:48:11 PM »
the mtz canada tractor site sent me to this forum. lol.


imperial1960

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Re: 825 driveshaft troubles!!!!!
« Reply #11 on: February 17, 2017, 05:13:22 PM »
I get it you have a one piece drive shaft with no intermediate in the center of your drive line I posted a picture correct? Call these people in Canada  http://www.mtzequipment.com/
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frederick

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Re: 825 driveshaft troubles!!!!!
« Reply #10 on: February 15, 2017, 10:37:03 PM »
my tractor is a belarus 102 1988. and in between the 2 pics is just a short junk of drive shaft. the rear protion of the shaft goes into the clutch houseing directly behind the engine. and the front goes into the front diff. the tractor is basically a 825 but with a turbo and aprox 100 hp. if i understand correctly the slipclutch is mechanical not clutches, and it will slip according to that design. its possible that something else is wrong as this system is a little different to me. the amount of times it has slipped if it was something else there should be nothing left. if nobody has a better idea when i have time i plan on taking the ujoint off the fornt diff to see if the adjustment is behind that. the part you show in your pic i dont think i have. other wise i am a little lost.  i have a 12 ft snow blade off a plow truck mounted on a 80 eezon loader. with a heavey load of snow if i lift on it while spinning sometimes i feel and see the front end slip. its probably a very good thing that it does slip, but its slipping alot easier then the first time it slipped, so i would like to check its adjustment. a licensed mechanic i am not but as a farmer i have fixed and built alot. here i am a little lost.

imperial1960

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imperial1960

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Re: 825 driveshaft troubles!!!!!
« Reply #8 on: February 15, 2017, 04:39:00 PM »
Fredrick shooting from the hip here need model number of tractor,Now can you tell me if your front drive shaft has the intermediate like in this picture? 722209010A - INTERMEDIATE CLUTCH ASSY
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