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Midwestern Model 100 loader quit working on my 2N

R

rodohotto

New User
Hello. I was using my loader to try and pull up a stump and it quit working. It now does not lift up or articulate. I checked and added fluid, but that did not help. Maybe I need a new hydraulic pump? Where can I get one or can this one be readily rebuilt?
 
(quoted from post at 14:03:35 04/14/16) Hello. I was using my loader to try and pull up a stump and it quit working. It now does not lift up or articulate. I checked and added fluid, but that did not help. Maybe I need a new hydraulic pump? Where can I get one or can this one be readily rebuilt?
Click to expand...

It's usually wise to troubleshoot a malfunction before throwing parts at the problem. Loader hydraulics are easy to troubleshoot. First thing I would do is pull the pressure line off the pump and see if it is producing a flow. If it is get a 3000+ PSI hydraulic gauge and test the pump output pressure. If you have flow and 1500+ PSI pressure the problem is not the pump.

TOH
 
The pump is making some squeaking noises now and when I try and lift the bucket it sounds like it is grinding. I don't have access to a pressure gage
 
Hydraulic gauges are cheap, I was at a JD dealer this morning and they have a 0to 3000 for less than 15 bucks.
 
Likely, the "stinger" driveshaft that powers the pump from the front crankshaft pulley has failed in some way, likely stripped splines.
 
(quoted from post at 15:29:57 04/14/16) Likely, the "stinger" driveshaft that powers the pump from the front crankshaft pulley has failed in some way, likely stripped splines.
Click to expand...

And that is something you can observe with just your eyeballs. All you ghave to do is LOOK :roll:

TOH
 
(quoted from post at 12:44:03 04/14/16)
(quoted from post at 15:29:57 04/14/16) Likely, the "stinger" driveshaft that powers the pump from the front crankshaft pulley has failed in some way, likely stripped splines.
Click to expand...

And that is something you can observe with just your eyeballs. All you ghave to do is LOOK :roll:

TOH
Click to expand...

The PTO shaft is spinning and it appears the shaft on the pump is also spinning. Could I have put too much pressure on the system trying to lift the stump and blew out the pump?
 
(quoted from post at 17:53:21 04/14/16)
(quoted from post at 12:44:03 04/14/16)
(quoted from post at 15:29:57 04/14/16) Likely, the "stinger" driveshaft that powers the pump from the front crankshaft pulley has failed in some way, likely stripped splines.
Click to expand...

And that is something you can observe with just your eyeballs. All you ghave to do is LOOK :roll:

TOH
Click to expand...

The PTO shaft is spinning and it appears the shaft on the pump is also spinning. Could I have put too much pressure on the system trying to lift the stump and blew out the pump?
Click to expand...

Not likely if your over pressure relief is working correctly. A sudden complete failure like that is unusual.

1) Re-inspect the shaft and coupling with it under load - e.g. have an assistant try to raise the bucket while you watch the pump. It may spin fine with no load but skip under load.

2) If you really think the pump is spinning properly do the flow/pressure test. It's simple, cheap, and definitive.

TOH
 

Thanks to everyone for all the input! I am new to the tractor so I have limited experience with these kinds of things, although I am fairly mechanically inclined. I will check the shaft again tomorrow with a friend who knows a little more about tractors and let you all know. If that is not it I will buy the pressure guage. Thanks again
 

One other thing I forgot to mention is when this first occurred it was about 20 degrees and at that time I thought it had maybe froze because it just suddenly would not raise. I left the bucket about 3 feet up so I could get it parked but then bucket would not lift or tilt and this is where I'm at now.
 
(quoted from post at 18:48:35 04/14/16)
One other thing I forgot to mention is when this first occurred it was about 20 degrees and at that time I thought it had maybe froze because it just suddenly would not raise. I left the bucket about 3 feet up so I could get it parked but then bucket would not lift or tilt and this is where I'm at now.
Click to expand...

Speculation is a wonderful way to waste time and I would rather not. The loader hydraulic system is a simple easily accessed external mechanism and an orderly step by step troubleshooting will find the source of the failure with minimum wasted time and expense. You start at the power source for the lift circuit (pump) and test pressure and flow as you move along the circuit isolating the component(s) under test from the upstream components as much as possible.

TOH
 
Well I learned a few things about this loader but does anyone know where I can get a filter for it? I believe this is what is giving me my problems
 
(quoted from post at 21:01:24 04/23/16) Well I learned a few things about this loader but does anyone know where I can get a filter for it? I believe this is what is giving me my problems
Click to expand...

Still guessing? Bypass the filter band see what that does.

TOH
 
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