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The pin sizes for the implement ends will be correct for any CAT1 but the tractor ends may be tractor specific, I just don't know. However, there may be a fair amount of interchangeability among brands because so many of them are made by the same Chinese factory. You may be able to find...

Way back when I bought my tractor I looked into using an importer as opposed to using a dealer. The importer wanted the $$ up front and he had to get enough orders together to fill a shipping container then he had to pay the factory up front before they would fill the order. No guarantees from...

That is really interesting! Sounds like a dowel pin like you would find between the bell housing and the engine block. used for easy assembly and then the bolts are not taking a shear load as the pins carry that with a closer tolerance fit. Very innovative. Did you take pictures you could share?

Good move on the mechanical gauges. The Chinese electrical stuff is marginal even when new. No idea about how accurate any of it is, although if working it is at least a reference point. All wires are undersized and all brass connectors are poor quality. But we didn't pay fancy paint color...

Blow by because of worn rings has only one solution. But if it is caused by stuck rings there may be a "snake oil cure" that works for you. I used to get a product called Essenta-Lube by Hydrotex that did good things to carbon deposits and varnished fuel systems. Don't know if it is still...

Sounds like you have a pretty good handle on things. My engine parts book does not show the breather assy. There should be a wing nut on top so you can take out the metal mesh and clean it. Maybe the mesh is plugged and is not condensing out the oil like it should. Maybe it doesn't have the...

Is it the Y385 engine? What year? As EPA rules reached down into the tractor market things changed from year to year, sometimes mid-year. Documentation is minimal. on my 2006 Y385 there is a breather can with metal filter on the right side of the engine block. The tube between the block and the...

All drive trains consume power. Some more than others. For me I don't think fuel efficiency is much of an issue unless I was farming thousands of acres. In my case it all comes down to reliability and repair-ability. Gear boxes are easy to fix. HST, not so much. I have more time than $$ so it is...

It sure sounds like your plugs are shot. The .2 ohms reading is a little confusing it should be an open reading. It should not change when you touch the tester terminals to the plug. I suppose there is a slim chance that when they burned out the shorted internally but for you to get any reading...

It sounds like you have air in the fuel system. Did you bleed it at the IP bleed port? I would try that first. Second would be to bleed each line at the injector. This is usually not needed as it will normally take care of itself. Unless you have an air leak somewhere. First thought on that is...

A very good solution for the undersized wiring. Very similar to what I did using a starter relay for an older model Ford. Takes the load off of the switch and lightweight wires and puts full battery voltage to the glow plug buss bar. I did that as an upgrade before the original stuff failed. All...

I have a 2006 Jinma 284. The parts book has a decent exploded view. Looks like a standard spider gear setup. Access to the pumpkin is through the cover on top of the axle. I've never had a reason to get into the front diff but looking at my pictures, it might be easiest to pop the radiator and...

What year and model? By third member do you mean the differential in the center of the axle? Could the noise be coming from the driveshaft? These things turn all the time whether or not it is in 4WD. Do you have a parts manual and owners manual? If not, you can order them online. For a quick...

At the very least I would recommend changing the oil in the injection pump. Engine oil is just fine.

That is very interesting. It sounds like the engine mounted pump runs the power steering and possibly the FEL but the disconnect is for the pump that runs the backhoe? I'm really not familiar with this tractor. The Jinma 284 has a mounting point for a rear mounted pump just above the PTO shaft...

Hi Bob! We must have been typing at the same time!

The black smoke indicates it is running rich which means there is no shortage of fuel in the cylinder. That leaves a shortage of air or improper injector timing. The easiest to test is air. I would remove the intake hose from the intake manifold and run it briefly to see if the problem clears...

What was the cause of the runaway and what did you do to fix it? Bogging down is usually caused by restricted fuel or air flow. Injection timing might be a factor but not as likely. Did you check the air filter to see if it has collapsed? Also the air intake hose could have de laminated...

Glad to hear you got it working. FYI the down flow valve controlled by the knob should open up enough to let the arms drop faster than they go up with no weight on them. Make sure you get it opened up all the way for full flow. It is possible that there is some debris blocking the return channel...

You can see where the inner core of the plug broke off just below the surface of the head. I could get needle nose pliers or needle nose vise-grips on the stem, but just barely. It was stuck tight and any turning motion resulted in the feel of the core just twisting in place. Not something that...

Here is a plug that came out properly on the left and the one from the back hole that jacked itself apart on the right. The third piece was still stuck in the head when this picture was taken. On the left plug the part that gets hot is the blackened end near the bottom. This actually protrudes...

When all 3 glow plugs died I had no choice but to replace them before winter. The front one came right out. The middle one came right out. The back one (hardest to get to) had to be cranked out with torque all the way to the ends of the threads. What I didn't know at the time was the heat end of...

When compared to a modern gas engine my 284 has always been "hard to start". This is just a perception and not really the truth. The proper procedure will help a lot. On first start up at temps above 70 I just set the throttle forward enough that it starts to move the foot pedal and then hit the...

New glow plugs part number 10.12.73 measure 2 ohms each. Applying ohms law at 12.8 battery voltage shows a power draw of 6.4 amps each generating 81.82 watts of heat (not the proper unit but you get the idea) If you measure resistance of all three plugs at the same time you will get .667 ohms...

Did you remove the buss bar when you checked resistance? If not you were measuring a parallel circuit and not the individual glow plugs. My glow plugs died one at a time, and I watched it happen as the amp draw decreased as each one went open. It is quite possible that you had the same think and...

here is a link to my website where the manuals are. the controls are on pages 9 and 10 http://harnerfarm.net/Jinma/Jinma284.html

Last question first. No, you should not need to run the PTO to have hydraulic power to the 3pt. Check under the front of the seat for a knob. This knob controls the "fall rate" of the 3.pt. You turn the knob all the way in to stop the arms from lowering. They will still raise however. There is...

If your amp meter works properly otherwise that is a pretty good indication that your glow plugs are not working. The big question is why? I would start by putting a volt meter on the bus bar that connects the glow plugs and check for battery voltage when you hit the Heat switch. If you see...

It is a little hard to see in this picture. This was taken when the hand primer/lift pump were still on the IP. The overflow tube had a rubber cap on it but if you take that off of the little 90° nipple that is the fill level indicator on my pump. Mine does not have a dipstick so it may be...

These aren't the best pictures but maybe they will help. Let me know if you want anything different or up close.

Take a look here: Harnerfarm Jinma 284 I have a few pictures taken during assembly from the crate. Here is one that my provide some clues. I can take others if you let me know what to focus on.

Do you know what make and model of engine you have? There should be a plate on the engine somewhere with this information. If it is a Yang Dong Y385T it may or may not have a decompression set up. If the valve cover looks like this one, the linkage or cable will connect to the mechanism at the...

Yes, and they also help control the side to side sway. Most times I can pin one arm tight but the other one does not line up with a hole so I use the slot instead. Here is a view from a different angle. 3 point hitches are a great invention. They are also a PITA! I am sure if there were...

Here is what came on my Jinma 284. They don't take all the play out and the holes don't always line up the best for some implements

OK. NOW I remember. I also see what is wrong with yours. You are missing the stud and nut. Take a look at this photo, you may have to zoom in. There is a stud (basically a bolt) that threads into the end of the plunger (shaft). This is where you adjust the length so it contacts the cam on the...

Here is a scan of my parts book. The page numbers are a little hard to see but #141 is a nut. This jogged a memory. I think you can screw the Stud (#142) or nut to adjust the length. I don't remember exactly what I did as it was several years ago. Since the stud and nut are shown outside of...

One of the recommendations I read when I was putting my 284 together was to "over fill" the transmission. Someone had determined that it ran a lot quieter if there was enough gear oil (80-90) to have the upper most shaft running at least partially submerged. Doing so has never caused it to...

You are correct. The lever in this picture turns on the PTO system. Push down to EN-gage. This must be engaged in order for the internal tang shaft to be used. The lever at the back is a speed selector for the 6 spline PTO shaft. It has a neutral position so that you can stop the PTO shaft from...

Hopefully the attached picture goes through. The top red line is the main clutch pressure plate. The black line is the clutch cover which is not supposed to move, the bottom red line is the main clutch disc and the bottom blue line is the fixed pressure plate. You can see these items in the...