John Deere 820

[Jim Dunn]

Make absolutely sure to check all passages of the air intake for dirt or debris. I started an engine that ran good for a few minutes and then started having problems. I found that there was a mud wasp nest in the intake hose that allowed the engine to draw in dirt that mixed with the fuel and created a gummy gue that coated the valve stems and guides which caused all but two of the valves to stick and bend each of those push rods. Had to pull the head and clean the valves and guides to correct the problem. A simple cleaning of the complete air intake would have saved a lot of work.

Jim Dunn

 

[jenkinsph]

Make absolutely sure to check all passages of the air intake for dirt or debris. I started an engine that ran good for a few minutes and then started having problems. I found that there was a mud wasp nest in the intake hose that allowed the engine to draw in dirt that mixed with the fuel and created a gummy gue that coated the valve stems and guides which caused all but two of the valves to stick and bend each of those push rods. Had to pull the head and clean the valves and guides to correct the problem. A simple cleaning of the complete air intake would have saved a lot of work.

Jim Dunn

I agree and mentioned this in the first sentence of my post. Shortcuts can be expensive, not fogging the cylinders before attempting to start was risky too. All of the initial prep work before sticking the key in the switch is the best bet.

 

[cannedman]

I found the fuel filters and got them changed. I bled the lines and it started without a problem. I will now see if I can find the hydraulic filter. I will change the fluid and the filter. Do you know how much fluid it holds?

While I had it running I checked the lift and the pto. The lift works fine but the pto will not engage.

Thanks again for all of your help and the pictures.

 

[jenkinsph]

It holds about 8 gals dry, so somewhere between 7 and 8 gallons. Also check the plug pictured on the steering column it should be full to the bottom of the plug, top it off with the same 303 fluid.

when checking the hydraulic fluid level there is a dipstick at the rear of the right hand foot plate. With tractor on level surface use this dipstick with out screwing in to check the level. Fluid should be between the marks.

If you do all of this and can run it awhile check for leaks, make sure the radiator and pump isn't leaking and change the anti freeze too.

About the pto clutch, make sure the pedal is to the floor before trying to engage the pto lever. This tractor has a two stage clutch and may need adjusting.


Sounds like this is coming to life again.:thumbsup:

 

[cannedman]

I found the dip stick underneath the seat. I did not find the one under the steering column. I am changing the anti freeze also just to make sure. I ran and drove the tractor for about an hour today. Found a couple of small hydraulic leaks.

I tried the pto again and it will not engage. I will have to wait on my manual to arrive and see if shows how to make the adjustments.

Once I get the tractor cleaned up I will take some pictures and post them.

 

[roncamaro]

While you are changing the hydraulic oil make sure you clean the screen at the same time. Is the pto grinding when you try to engage it? I believe you have a two stage clutch. Make sure the clutch petal is all the way down engage the lever then let the petal up.

 

[cannedman]

Thanks I will clean the screen. The pto lever will not move. I can push it out toward the wheel but it will not move forward. No noise on any kind.

 

[jenkinsph]

I found the dip stick underneath the seat. I did not find the one under the steering column. I am changing the anti freeze also just to make sure. I ran and drove the tractor for about an hour today. Found a couple of small hydraulic leaks.

I tried the pto again and it will not engage. I will have to wait on my manual to arrive and see if shows how to make the adjustments.

Once I get the tractor cleaned up I will take some pictures and post them.

What you found under the seat with the little tab on it is the "rate of drop control" it has a small shaft on it. This is used to dampen or slow down how fast the 3pt lowers an implement to the ground. I will post a pic of the dipstick at the rear of the footrest rightside.

I am including a pic of the left side by the clutch pedal, there is a round cover that you need to remove and grease the clutch, just two (2) squirts of a grease gun.

I agree that you should clean the screen when changing the hydraulic fluid too.


First pic of correct dipstick and hydraulic filler cap.
Second pic Upper right inspection cover removed to show grease zerk for clutch.
Third pic is the implement rate of drop control, should be adjusted so that it takes two seconds for the 3pt implement to drop to the ground.

 

[jenkinsph]

If you have manual steering the plug is shown in the pic belpw, this should be filled with the same lubricant as the hydraulics Deere 303 or new replacement. #1 points to the plug and #2 points to the approximate fill line.

 

[cannedman]

Thanks to everyone for your help. I want to make sure I am doing the pto correctly. The pto handle is on the left side underneath the seat clutch fully engaged lever should move forward and stay. Release clutch and pto should be moving. Is this correct?