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Messages - CLF

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MTZ Tractors - Old Models (Belarus) / Re: Hydraulics
« on: April 25, 2016, 08:52:11 PM »
I'll see if I can get a pressure gauge. I raised the front of the bush hog up and it raised with little effort so I guess that's good. The only issue now is the top link is too short. It measures about 31 inches fully extended and it needs to be about 34 inches to attach to the hog to raise it completely off the ground. It's the one that came with it when I got it but it won't work.

MTZ Tractors - Old Models (Belarus) / Re: Hydraulics
« on: April 23, 2016, 08:53:11 AM »
After going through the complete system again and a quick trip to a local hydraulic shop I figured out the problem. It appears that the jack wagon I got the tractor from took the bypass value out and didn't replace the spring and ball. The hydraulic shop made a spring and gave me an old ball and the hydraulics work like a champ.

MTZ Tractors - Old Models (Belarus) / Re: Hydraulics
« on: April 18, 2016, 08:12:35 AM »
Unfortunately I haven't been able to find anything in reference to the hydraulics. I bought a manual on line but it's basically useless. It seems like a relatively simple system but it's so complicated to figure out if that makes any sense. I was able to find an article on line on how to completely test a gear pump system so today I'm going to start at the tank and work my way back to the tank.

MTZ Tractors - Old Models (Belarus) / Hydraulics
« on: April 14, 2016, 03:39:01 PM »
Finally got the old 250AS started but the 3pt won't raise or lower. I've spent the past couple months trouble shooting with no luck. I've replaced the hydraulic drive, pump, removed the bypass valve and had the cylinder rebuilt but it still will not build enough pressure to raise or lower the 3pt. It has fluid flow but no pressure and I'm really getting to the point where I want to just sell the old thing. Does anybody know another solution I could try? Thanks.

MTZ Tractors - Old Models (Belarus) / Re: Belarus 250AS won't start
« on: April 14, 2016, 03:33:39 PM »
Sorry I haven't responded sooner but thank you for the replies. I finally got frustrated and sent it to a diesel mechanics school to be fixed. Of course it was the engine not being primed right but all it cost was a small wrecker fee to have to towed. It runs like a champ except the hydraulics not working but I'll post a question soon. Thanks again!

MTZ Tractors - Old Models (Belarus) / Belarus 250AS won't start
« on: October 27, 2015, 08:38:22 PM »
I didn't have much luck with my last post so I'll try one that might be easier. My 250AS won't start. The engine seems to turn over just fine but just won't crank up. I'm getting fuel to the filters and pump but only seem to get fuel to one injector (one closest to the front end) but the other one isn't squirting fuel into the injector. I took each line off independently and turned the engine over. I'm guessing there is something wrong with the pump but would like any input on this. Thanks

MTZ Tractors - Old Models (Belarus) / 250AS
« on: October 14, 2015, 09:42:05 AM »
Greetings, I just acquired a 250AS as a project. It's in ok shape but it's obvious that the previous owner didn't take good care of it. It's not been started in at least 2 years because the previous owner busted the hydraulic drive (which I've already replaced).  I've been trying to service it and fix obvious things as I go before I try to start it. I'm going to start with an easy question. How do I find out what year this tractor is?

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