John Deere F935 diesel fuel pump

[Kegonsa]

I started my F935 and moved it from the barn to up front with no issues. I filled up the tires with air and it sat for 3 days. I went back out and went to start it but it wouldnt fire. Looking under the hood at the fuel bowl I noticed it was almost empty. I went through and purged all the air out at the filter, injection pump, and at the injectors. It fired up and worked great. After playing with it for a bit and engaging the rotary broom it sputtered and killed. I did this a couple more times before calling it quits. Each time the fuel filter bowl was almost empty. Any ideas on the issue? Also someone had sent me the full service manual but I can find it, if someone has a PDF they can pass on that would be greatly appreciated. Thank you

 

[JD 430]

Check if your electric fuel pump is shutting off when the fuel bowl gets empty pm me I have the pdf of john deeres ctm3 tec manual that covers that engine

 

[JD 430]

http://www.wfmfiles.com/download/manuals/CTM3.pdf Here is the link I downloaded that manual from

 

[Kegonsa]

Thanks for the link! I can hear the fuel pump so it doesn't sound like it quit. I wouldnt say the pump sounds healthy, but it has sounded like that for the past 2 years. I think I will find the diagram in the manual and replace the fuel lines. Hopping something is clogged pre filter or maybe a cracked line letting air.

 

[beenthere]

Check for clogged fuel line.

 

[zzvyb6]

Sounds familiar. I replaced the fuel pump (O'Reily Auto parts, or AutoZone, whatever). Get the metal can type, not the plastic housing one. After all that, it still would not run very long. Determined that the yellow plastic hose inside the tank for the fuel pickup was cracked and admitted air. Problem was on BOTH tanks. Unless I had the tanks filled to the top, it would not run right. You have to pull the tanks, pull out the fuel pickup and install new hose. Now she runs just fine.

 

[Kegonsa]

Does anyone have the manual TM1487 F911,915,925,932,935.pdf ? JD 430 the one you sent goes into great detail on the engine, I saved it to my google drive so i can find it easily for future reference.

 

[ffejallen]

I started my F935 and moved it from the barn to up front with no issues. I filled up the tires with air and it sat for 3 days. I went back out and went to start it but it wouldnt fire. Looking under the hood at the fuel bowl I noticed it was almost empty. I went through and purged all the air out at the filter, injection pump, and at the injectors. It fired up and worked great. After playing with it for a bit and engaging the rotary broom it sputtered and killed. I did this a couple more times before calling it quits. Each time the fuel filter bowl was almost empty. Any ideas on the issue? Also someone had sent me the full service manual but I can find it, if someone has a PDF they can pass on that would be greatly appreciated. Thank you

I had the same problem with my F 1145. I could fill the fuel filter housing up with the prime pump and it would run for a little bit than the filter housing would empty back into the tank and the engine would die.
Take the tanks off and check the hoses down in the tank. Mine had completely disintegrated. When you have the tanks off it is a good time to change all the fuel hoses between the tanks and the selector valve and the valve and the engine..

 

[Kegonsa]

Thanks ffejallen I am pretty sure you are right. Last year my right tank stopped working so I just used the left one because I didnt have time to investigate. I was able to contact joecdeere and he sent me the pdf manual for the f935. hopping that I get a two day weekend soon and have a chance to work on it Saturday.

 

[joecdeere]

I have the tm1487 in a PDF, shoot me your email if you want it

Joe

Does anyone have the manual TM1487 F911,915,925,932,935.pdf ? JD 430 the one you sent goes into great detail on the engine, I saved it to my google drive so i can find it easily for future reference.