jd 2020 diesel want start

can some one tell me how to bleed the fuel system on my jd 2020 diesel. replaced fuel filter and will not start. have bleed the injector lines but still want start. need some help.

Best advice is from the operators manual which uses several pages of text and pictures. A few lines on the internet is a poor substitute.
1-800-522-7448
There should be a wee lever on the low pressure fuel pump that will move fuel if the cam if the engine is resting in the correct place.
Don't use ether to try and hurry the task along.

Easiest way is pull start it if you don't know how to bleed injectors.

Bleeding a Diesel Fuel System


Start at the fuel outlet of the tank (inlet to the filter). Shut the tank valve, remove the line at the filter inlet and holding a suitable container to catch the diesel fuel, open the valve. You should have a CONTINUOUS rush/flow of fuel out of the line. If it dribbles or is intermittent, check the fuel cap for a blockage of the fuel vent or the strainer upstream of the valve for clogging. The strainer/screen is attached to the shut-off valve, and is positioned up inside the tank. You will have to drain the tank and pull the valve to clean the screen.
If you have good fuel flow at that point, reconnect the line and open the bleeder screw at the top of the filter. Turn on the tank valve and wait till you have a steady flow of fuel with no bubbles at the top of the filter, then close the bleeder screw.
Your pump may have a bleeder screw. If so, open that until fuel streams out with no bubbles, then close it. If you cannot identify the bleeder screw, loosen the inlet connection at the pump and purge air at that point.
Go back and make sure ALL the fittings in the fuel delivery system are tight so they cannot suck air.
Make sure the battery is fully charged. Loosen the fuel fittings at the injectors, either one at a time or all at once. Crank the engine till you see all fuel at the injector fittings and then tighten the fittings. If you do indvidual fittings, the engine will usually start before you get to the last fitting.
Alternatively, you can "tow-start" it to save wear and tear on your starter. Leave the injector lines cracked open at the injectors at first to purge the lines. Then tighten them up and she should start.
Your injection pump puts out a very small amount of fuel (high pressure/low volume). BE PATIENT. If the lines are totally empty, it takes a lot of cranking to fill them up.
sixbales & Jerry/MT

(quoted from post at 01:04:09 01/31/13)
Alternatively, you can "tow-start" it to save wear and tear on your starter. Leave the injector lines cracked open at the injectors at first to purge the lines. Then tighten them up and she should start.
Jerry/MT

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Do not attempt to tow start if tractor is equipped with a hydraulic hi-lo or reverser or you'll possibly damage the hyd component. Be sure if elect solenoid on pump is getting 12V's and that you can hear it energizing when ign switch is turned on.

Jim; Just let me add make sure it is energized and just as important STAYS THAT WAY WHILE CRANKING !

I learned a hard lesson a year or so ago on one of my diesels. I checked for the "click" and also voltage when I turned the key on. Well I didn't keep the tester on it and that was a mistake as a relay was acting up and shut it back off while cranking.

Like TXjim stated if you pull try to pull start it and you have the Hi/LO or hydraulic reverser YOU will damage the the tractor. You do not have to pull them very far while trying to turn the engine for it to do major damage. This can include ruining the hydraulic clutch pack housing. Fifteen years ago this was a $2500 screw up. The parts would be much higher today.

Had a customer pull his JD 2640 over to me because the fuel system was frozen up. His wife drove his pickup and he drove the tractor. He wanted the engine to be wind milling over so the steering would work. The wife must have been driving faster than the tractor would normally would run in road gear. HE exploded the Hi/Lo clutch pack and it locked up. So he had the transmission back driving the engine. He ruined several connection rods as they bent from being over sped. Total repair bill was over $7500 years ago.

So long story short just bleed the fuel system. It is much safer money wise.

(quoted from post at 21:18:20 01/30/13) Easiest way is pull start it if you don't know how to bleed injectors.

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Must have been there but texting instead of watching.

Over the years I have seen way too many guys change fuel filters, not bleed them correctly and try starting engine. Now you have a bunch of air inside the injection pump making things much more difficult. Spend a little extra time pumping, or opening bleeders what ever the case may be before trying to start.