Help Bleeding Fuel System on 843

[Dutch]

I need to know the procedure for bleeding my fuel system. I changed the fuel filter on my 843 which has a Perkins 4.154 engine. I need to know what is the procedure for bleeding air out of the system, if required. My Bobcat is equipped with the long gold tube that says "fuel in" and "oil out" and seems to have a toggle lever on the bottom. Is this what bleeds it? Do I perform this with the engine running? That's it in a nutshell. Let me know if you need more info.

 

[antfarmer2]

Type in the search box (843 bleeding fuel) you will see your post and one under it click on that one and there you go

 

[Dutch]

Type in the search box (843 bleeding fuel) you will see your post and one under it click on that one and there you go

I've tried to search as you stated, however I see no reply, or post.

 

[antfarmer2]

I've tried to search as you stated, however I see no reply, or post.

I saw three did you click on the post that will give you the thread

 

[antfarmer2]

I saw three did you click on the post that will give you the thread

It is number 3 click right on (primeing injector pump)

 

[Dutch]

It is number 3 click right on (primeing injector pump)

Apologies, we've tried everything, can't get to the answer. Can you copy and send it to me? Thank you.

 

[antfarmer2]

Apologies, we've tried everything, can't get to the answer. Can you copy and send it to me? Thank you.

On the top of the fuel filter there should be a plug take that out and pump the ball to get the air out first

 

[antfarmer2]

On the top of the fuel filter there should be a plug take that out and pump the ball to get the air out first

Then loosen the banjo and pump again till the air is out if it still won't start then loosen all of the couplers on the injectors a half turn the have someone crank it till fuel comes out and tighten them down the line as they do when it starts move to the side out of the spray and tighten the rest or shut it off and finsh did it run before you changed the filters or were you having problems before?

 

[Dutch]

Then loosen the banjo and pump again till the air is out if it still won't start then loosen all of the couplers on the injectors a half turn the have someone crank it till fuel comes out and tighten them down the line as they do when it starts move to the side out of the spray and tighten the rest or shut it off and finsh did it run before you changed the filters or were you having problems before?

No I had no problem prior. I was doing routine maintenance, removed the fuel tank, cleaned it out, then put in new fuel filter, cleaned the settlement bowl and that is where I am. There is no bulb anywhere on the rest of the fuel line. My fuel tube goes from the tank to the fuel filter with no bulb.

 

[antfarmer2]

No I had no problem prior. I was doing routine maintenance, removed the fuel tank, cleaned it out, then put in new fuel filter, cleaned the settlement bowl and that is where I am. There is no bulb anywhere on the rest of the fuel line. My fuel tube goes from the tank to the fuel filter with no bulb.

Ok I think someone took your ball lol but you can wrap a rag around a air hose and put LIGHT pressure in the fuel tank with the cap off and do the same thing

 

[OldMachinist]

Ok I think someone took your ball lol but you can wrap a rag around a air hose and put LIGHT pressure in the fuel tank with the cap off and do the same thing

 

[antfarmer2]

Thanks OM evan better

 

[Dutch]

Yes THANKYOU, this is a big help. I do not have a service manual or an electrical schematic for an 843 but need them. Is there a link that you can send me for these items? Thanks I appreciate your help, and you too Antfarmer. This is a wonderful forum and I appreciate all the help from you guys.
A bit of history, the Bobcat would run 20 minutes or so, then shut down. It would be awhile for it would start again so this is why I removed the fuel tank,and I cleaned the pickup and fuel line inside the tank. Then I changed the fuel filter and glass settlement bowl. That is why I am working this fuel problem.

 

[antfarmer2]

Yes THANKYOU, this is a big help. I do not have a service manual or an electrical schematic for an 843 but need them. Is there a link that you can send me for these items? Thanks I appreciate your help, and you too Antfarmer. This is a wonderful forum and I appreciate all the help from you guys.
A bit of history, the Bobcat would run 20 minutes or so, then shut down. It would be awhile for it would start again so this is why I removed the fuel tank,and I cleaned the pickup and fuel line inside the tank. Then I changed the fuel filter and glass settlement bowl. That is why I am working this fuel problem.

Did you check the fuel cap for a pluged vent

 

[antfarmer2]

Did you check the fuel cap for a pluged vent

You can get some part and repair CD's on ebay cheap

 

[OldMachinist]

You can get some part and repair CD's on ebay cheap

$5.00 for a download on TradeBit is the way to get a service manual fast. It's not me that's selling it. It's just the easiest way I've found to get a manual when I need one.
https://www.tradebit.com/filedetail.php/169715754-download-bobcat-843-service-manual-skid-steer

 

[phazeloss]

Yes THANKYOU, this is a big help. I do not have a service manual or an electrical schematic for an 843 but need them. Is there a link that you can send me for these items? Thanks I appreciate your help, and you too Antfarmer. This is a wonderful forum and I appreciate all the help from you guys.
A bit of history, the Bobcat would run 20 minutes or so, then shut down. It would be awhile for it would start again so this is why I removed the fuel tank,and I cleaned the pickup and fuel line inside the tank. Then I changed the fuel filter and glass settlement bowl. That is why I am working this fuel problem.

After cleaning the tank did you inspect the dip tube for cracks? at this point it might be wise to change the supply and return fuel lines. if your machine does not have a prime pump installing a hand prime bulb and a shut off valve before your primary fuel filter will save you time and headaches in the future when you go to change your fuel filters

 

[Dutch]

After cleaning the tank did you inspect the dip tube for cracks? at this point it might be wise to change the supply and return fuel lines. if your machine does not have a prime pump installing a hand prime bulb and a shut off valve before your primary fuel filter will save you time and headaches in the future when you go to change your fuel filters

OM, thank you for the link to the service manual, it's exactly what I needed. My engine is a 200 series and I found the correct fuel bleeding procedure in the manual.
I purchased a primer-pump bulb, cleaned the fuel cap with diesel and blew it out with air and there was already an existing cut off valve on the line between the fuel tank and the fuel filter.
Thanks to Everyone for your quick response and support. This is a great forum.

 

[Dutch]

OM, thank you for the link to the service manual, it's exactly what I needed. My engine is a 200 series and I found the correct fuel bleeding procedure in the manual.
I purchased a primer-pump bulb, cleaned the fuel cap with diesel and blew it out with air and there was already an existing cut off valve on the line between the fuel tank and the fuel filter.
Thanks to Everyone for your quick response and support. This is a great forum.