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Well this isn't fishing related but I thought some of you guys/gals might be able to help me out on here. I have an Allis Chalmers 5015 diesel tractor that I can't get the back arms to pick anything up. Will go down but won't pick up any weight. We have drained the hydraulics twice, the 1st time it was milky and we have changed the hyd. filter twice. Also my brother found a couple of small pieces of plastic in the fluid when we drained it. Anyone have any ideas? Thanks in advance.
I'd bet a hamburger that you're going to wind up replacing the hydraulic pump.
Does it have a strainer in the sump?
Be glad to pay that up if that is the problem! Know where I can find one?Quote:
Originally Posted by DoyleAlley
Not sure how the hydraulic pump is set up on this particular tractor, but I have seen a tractor sheer a key that spun the pump shaft, took us forever to figure it out. put another key in it and started working again.
Not that I know of.Quote:
Originally Posted by Atimm693
I'll have to check on that. Thanks.Quote:
Originally Posted by Prater4586
I just did a quick Google on "Allis Chalmers 5015 Hydraulic Pump" and came up with lots of hits for both replacement pumps and rebuild kits.Quote:
Originally Posted by shadow
One more thing to think about - since you found plastic parts in your hydraulic fluid I'd start trying to track down 2 things. 1. What parts inside the system use plastic parts? 2. Where could any of those parts be lodged creating a blockage?
Do what Doyle did. Google search that pump, then see if you can’t find a diagram for the system. That should give you a breakdown on parts plus an idea where that plastic looking stuff could have come from. I suspect pump seals have come apart plus some of it could be stuck in bypass valve. Shouldn’t be to hard to rebuild once you see a drawing and what parts you need.
It would be wise to get a hold of a service manual and study how the hydraulic system works.Quote:
Originally Posted by shadow
It could be a lot of things, I would not spend the money on a pump until you can verify that it is not working. Could just be a problem with the lift valve, a hidden sump screen that is clogged, a stuck relief valve, etc.
The manual will outline various tests to find where the problem lies.
Allis used to partner with Simplicity, many models were the exact same with different paint, if you can't find an Allis manual, one for the corresponding Simplicity model would probably work.
I have the owners manual for the tractor and my brother did confirm the pump was working. He got it fixed for me, turned out we were draining the fluid from the wrong plug. Once he drained it from the correct plug, there was a lot of sludge in the fluid. Turns out we didn't get all the sludge out when it was drained before (smaller opening). Installed new fluid and now it works like it is supposed to. Thanks for all the help guys! This is truly a great forum!Quote:
Originally Posted by Atimm693
Great news. Looks like I owe you a hamburger :-) . I'm still concerned about the plastic bits found in the fluid though. That's never a good thing - fluid doesn't come out of the jug with plastic bits in it.
Yes, you are correct and if you ever find your way over here, I will be glad to buy you a burger! Got a few places around here that make some really good ones!Quote:
Originally Posted by DoyleAlley
Glad you got it fixed!
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When was last time you changed filters and fluid?????????
In the spirit of embarrassingly simple things, is there a 3pt lever stop/set adjuster? I've gotten tricked by that a couple times.
Me being the curious type, I would cut open the filters to see what was in them and figure out how it got in the oil to eliminate that issue in the future, along with another change or two of the filter in the near future. You might be able to tilt the tractor to one side where you can siphon water/crud/whatever from a low corner of the tank.