• Home
  • Search
    •  
  • Login
    • Username: Password:

      Did you miss your activation email?

Author Topic: Belarus Front MFD Axle Checking Oil Levels  (Read 9321 times)

damengineer

  • Global Moderator
  • Jr. Member
  • *****
  • Posts: 58
  • Country: us
  • new member
    • View Profile
    • That Dam Engineer LLC
Re: Belarus Front MFD Axle Checking Oil Levels
« Reply #6 on: May 12, 2015, 01:01:36 AM »
I drilled the plate behind the gear on the wheel hub shaft into the spindle  and then a small hole into the first hole at an angle to direct oil slinging off the gear to lubricate the spindle.  My spindle was not getting grease.  I have not noticed it leaking, but it steers much easier.
  • MTZ 1220 w/ Kr-34 loader, Belarus 8345 w/ Koyker loader, Belarus 825 w/ Memo loader, White 2-105, Case 1270,
If your not leading the pack, the view is always the same!!

Prince of Bales

  • Newbie
  • *
  • Posts: 15
  • Country: us
  • new member
    • View Profile
Re: Belarus Front MFD Axle Checking Oil Levels
« Reply #5 on: April 01, 2015, 11:02:13 PM »
Thanks- I figured that the spring may be decompressed with the weight off of them, but it is always good to check with those who know.
I may do as the previous post suggests and fill it up and run it a while to see if what it does.  I have had equipment that has sat a while have similar leaks start and then stop after being put into operation again.  I am probably not that lucky in this case, but as long as I keep a check on the oil level, it seems that I have nothing to lose by doing so.  It seems that the repair may not be that bad though, but it would be nice to have a manual to see the steps involved.  It seems that the service manuals posted on MTZ's site are password protected (?!).
  • Belarus 562

ChristianH

  • Newbie
  • *
  • Posts: 3
  • Country: ca
  • new member
    • View Profile
Re: Belarus Front MFD Axle Checking Oil Levels
« Reply #4 on: March 30, 2015, 10:34:32 PM »
Ive rebuilt these in under 3 hours.

MTZ Will get you the seals, it may also be worth replacing the drop tubes at the same time, the newer ones are heavier steel, if you do lots of round bales on the loader... The spring is decompressed when the wheels are off the ground, so its safe to pull it apart when the front axle is up.



  • 5180, 7111, PTU6

Haymaker

  • Global Moderator
  • Full Member
  • *****
  • Posts: 228
  • Country: ca
    • View Profile
Re: Belarus Front MFD Axle Checking Oil Levels
« Reply #3 on: March 21, 2015, 09:12:29 AM »
If it was mine and just got the tractor I would check levels, top up/change if needed and run it. Keep and eye on the levels. If it just sweats a bit it now and then I wouldn't worry about it for now. But if those top out side gear boxes are leaking down quickly or it is really leaking externally bad then you should look into repairing for sure.
« Last Edit: March 22, 2015, 03:23:45 PM by Haymaker »
  • Tractors- '93 Belarus 825 with loader and others...

Prince of Bales

  • Newbie
  • *
  • Posts: 15
  • Country: us
  • new member
    • View Profile
Re: Belarus Front MFD Axle Checking Oil Levels
« Reply #2 on: March 21, 2015, 12:04:53 AM »
Thank you very much for this!  My front drive axle is leaking at both ends and I want to repair this as soon as I can.  The video is really helpful but I may have to guess at some of the steps that are missing I suppose.  Are there any special concerns to be aware of when removing the lower gearbox?  I ask because I see that there is a pretty stiff-looking spring in the assembly.  If the wheel-end is hanging free, is the spring decompressed so that there isn't any concern about things flying apart when disassembled? 
It looks like the parts needed are some oil seals, o-rings and gaskets.  Does anyone have part numbers for these and perhaps a recommendation for where to get them?  I have posted a picture of where mine is leaking.
  • Belarus 562

Haymaker

  • Global Moderator
  • Full Member
  • *****
  • Posts: 228
  • Country: ca
    • View Profile
Belarus Front MFD Axle Checking Oil Levels
« Reply #1 on: March 20, 2015, 12:09:23 PM »
Very important to check oil levels in the 5 gear boxes in the axle.  2 on each side and the center diff. on the axle.   There is also a fill plug in the front drive line slip clutch which is  to the right of the engine oil pan which would make 6. Oil should be level with plug and changed as per manual.   What can happen on this system is the little gear box on the top on each side can leak down into the big bottom gear box.  IF this happens well of course no lubrication will damage the 2 little gears that mesh and cost $$$  I've see guys put a light grease in the top side gear box to get by if the seals are leaking.

Below is a video showing a fellow replacing the seals and O-rings. Parts are cheap but its a bit awkward to do if you don't have a floor jack as the bottom gear box is heavy. Plus you need proper blocking and jack to support the axle.  This video unfortunately isn't in English but it shows a lot of  what's involved.  Next time I do this service I'll post some pics. of the process.



So you can see he's digging at those 2 O-rings with his knife. Those cause the oil to leak externally down the side of the housing and on to the ground. There is no breather in that bottom gear box and when it gets warm it builds a little pressure it seems and pushes out oil when those o-rings get worn.  The other two seals for for the drive shaft that runs down vertically.  When they leak oil runs down into the bottom gear box.





« Last Edit: March 25, 2015, 02:21:59 AM by Haymaker »
  • Tractors- '93 Belarus 825 with loader and others...