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John Deere Tractors Discussion Forum
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JD 4430

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jeffjim

01-19-2005 17:55:40




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Does a 1977 JD 4430 have an electric fuel pump or do you have to prime the filters by hand? I noticed there is a settling bulb. Does that have a screen and does it need to be emptied or cleaned when you change the fuel filters?




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pbutler

01-20-2005 05:51:15




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 Re: JD 4430 in reply to jeffjim, 01-19-2005 17:55:40  
I recently changed my 4630 fuel filters for the 1st time. After having a nightmare time trying to get my Massey 255 reprimed-loosening injector lines, cranking and cranking, etc. I was dreading it.

It turned out to be a piece of cake. I simply cleaned the sediment bowl 1st, replaced the fuel filters, loosened the bleed valve on top of the filter housing, and then pumped the hand pump on top of the injector pump.

I was not expecting it to start but gave it a crank for grins. It started..sputtered for about 3-4 seconds, and then evened out. Seems it is much better at self priming than the Massey was.

Total time for a 1st timer was probably less than 10 minutes.

I would recommend you get a manual, they are cheap on Ebay, follow the steps and you will have no problems.

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John Jenkins

01-19-2005 21:57:00




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 Re: JD 4430 in reply to jeffjim, 01-19-2005 17:55:40  
The way I have always done the fuel filters on a 4430 (or 4440, 6030, 8630, etc.) is to first check and clean the sediment bowl and sediment bowl filter. First, unscew the hand nut on the bail that holds the bowl in place far enough so you can get the bowl and filter out. The bowl should have a cylindrical metal screen filter with a plastic nipple at the top that mates to the hand primer pump. Clean the screen and bowl with fresh diesel then reassemble. Be careful not to tighten too tight as you can crack the sediment bowl by over tightening. Next, replace the two main fuel filters. After this, notice that there is a bleed screw at the top of the main fuel filter mounting flange that must br loosened about one round. It takes a 5/8” wrench to loosen this screw if memory serves me correctly. After the bleed screw is loosened, look at the top of the hand primer pump (the thing the sediment bowl is attached to) and loosen the top by hand. You’ll have to turn this several rounds until you can slide this up (about 3”). This is the primer. As you slide this up and down, you are priming the system. You should notice the sediment bowl filling with fuel and the you will notice the actual fuel filters starting to fill up. Keep sliding the primer up and down until fuel comes out the bleed screw. On a downstroke of the primer, tighten the bleed screw. After this, retighten the primer back to it’s original position and you are reday to crank the tractor. It sounds complicated but it’s actually an easy task to perform. I would also recommend getting an operators manual for as it tells how to do this and many other routine maintenance tasks to insure you get them done correctly. Good luck!

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