Branson 2505H Problem (Need Help)

[mreyna16]

So a while back my Branson tractor started overheating and then eventually (after it was cleaned) would start, run like 15 to 20 mins then all of a sudden shut off randomly. After it was cleaned (air filter, radiator screen, etc etc), the tractor wouldn't overheat but it would still shut off randomly. I had to wait about 5 mins and it would start and run but would have to cool down before I could use it for another 15 to 20 mins. This got fixed eventually... It ended up being the fuel feed pump and it worked afterwards for about 7 months up to now.

What happened recently is very similar! Tractor overheated due to working it around a lot of dirt and tall buffel grass but this time it wouldn't start up even after it cooled down. The tractor starts but within 2 to 3 seconds it dies. I figured it was the same fuel feed pump so I ordered it. Only thing is that all I could find was an aftermarket/unbranded pump from amazon. The new pump has been installed and the tractor still dies after 2 to 3 seconds. The tractor has had its radiator screen cleaned, the diesel filters replaced and the air filter replaced with no luck. The lines seem to not be clogged. What might be my problem? Probably a solenoid?

 

[Unclewillie]

Of course you've bleed the fuel lines good and I wouldn't be concerned with the new pump, perhaps a bent fuel line . I would cut à seven foot piece of water hose stick it down to the bottom of the fuel tank and siphon a gallon and see what's in there, diesel is real bad about gunking up with trash.

 

[mreyna16]

Yes I've bled the fuel lines... I'll see tomorrow if I can do that

 

[K5lwq]

Post some pictures of your stop solenoid. Depending on what type you can just simply remove it for testing.

 

[mreyna16]

Sorry couldn't get better pictures... I already drained the tank, blew air through the fuel lines to clear them and when I put everything back I also used new diesel from a different brand gas station to no avail... Would it now eliminate everything else except the solenoid?

EDIT: Forgot to mention it's a 3 prong/wire solenoid

 

[K5lwq]

That is what I thought I would see. You can remove the two bolts holding the solenoid on then pull it off. There is a o-ring seal that is easy to lose so be mindful of that.

Once the solenoid is free of the engine leave it connected to the wires. When you turn the key on nothing should happen. When you turn key to start the engine you should see the solenoid suck in. Once key is released it should stay in until key is switched to off.

Be careful doing this as the tractor may start and run just fine. Make sure it is not in gear.

If the solenoid does not energize then you need to check the fuses and stop relay.

I guess I should mention if tractor does run you will have to manually push in and hold the pump rack to kill it. You can feel it in the hole for the solenoid but can not see it. You may want to locate that before you start the tractor. Lol

 

[mreyna16]

I'll do that right now... Let me also mention that the tractor keeps running when you keep the key turned (start position)... Once you let the key go to the "run" position, the tractor dies

 

[mreyna16]

That is what I thought I would see. You can remove the two bolts holding the solenoid on then pull it off. There is a o-ring seal that is easy to lose so be mindful of that.

Once the solenoid is free of the engine leave it connected to the wires. When you turn the key on nothing should happen. When you turn key to start the engine you should see the solenoid suck in. Once key is released it should stay in until key is switched to off.

Be careful doing this as the tractor may start and run just fine. Make sure it is not in gear.

If the solenoid does not energize then you need to check the fuses and stop relay.

I guess I should mention if tractor does run you will have to manually push in and hold the pump rack to kill it. You can feel it in the hole for the solenoid but can not see it. You may want to locate that before you start the tractor. Lol

Which one is the pump rack? Lol I was able to turn it on

 

[mreyna16]

Figured it out...

So it's the solenoid?

 

[K5lwq]

Well, most likely it will be the switch or relay. Explain what you saw.

 

[mreyna16]

So I turned the key and it sucked in but after a few seconds it popped out, so this is what's killing my engine... That's pretty much it, had to manually stop the motor pressing the pump rack...

So now the big question, could it be the solenoid or a fuse?

 

[K5lwq]

It will not be the fuse because it sucks in. Now you have to test the switch and relay to determine which is the problem. Or could be a broken wire.

Do you have a volt/ohm meter and a pin light? These will be necessary to trouble shoot more. Also if you have not done so, download the service manual from here.

Servicing Manuals for Branson - Google Drive

 

[mreyna16]

I have both but the pin light bulb is out... Might have to wait till tomorrow

Can you briefly explain what I'll need to do even though I don't have the pin light working?

 

[K5lwq]

When you download the service manual, go
to the electrical section and find the procedure for ohming out the switch. If it test good on all points then you need to locate the relay.

The manual I believe tells you how to test it but you need to see if power is coming out once key is energized.

Again it is linked to the starter relay and will only pass power after the starter has been engaged.

Sometimes you can swap a relay to see if it works then. But you need the starter and stop relay powered to see if it works.

 

[Unclewillie]

I'll do that right now... Let me also mention that the tractor keeps running when you keep the key turned (start position)... Once you let the key go to the "run" position, the tractor dies

sounds like ignition key switch.

 

[mreyna16]

When you download the service manual, go
to the electrical section and find the procedure for ohming out the switch. If it test good on all points then you need to locate the relay.

The manual I believe tells you how to test it but you need to see if power is coming out once key is energized.

Again it is linked to the starter relay and will only pass power after the starter has been engaged.

Sometimes you can swap a relay to see if it works then. But you need the starter and stop relay powered to see if it works.

Sorry haven't had time to test it out...

I want to buy a relay and swap it, I think it's simpler for me... I can just return it if it isn't the relay... So it's the starter relay right? Not the stop relay?

 

[K5lwq]

I would suspect the stop relay but check both. Again it could be a lose connection.

 

[Midniteoyl]

Sorry haven't had time to test it out...

I want to buy a relay and swap it, I think it's simpler for me... I can just return it if it isn't the relay... So it's the starter relay right? Not the stop relay?

Swap the starter relay and stop relay, see if it follows the relay. Or it just might work fine now too..

 

[mreyna16]

Swap the starter relay and stop relay, see if it follows the relay. Or it just might work fine now too..

Sorry for the late reply... Was finally able to get the relays (my local parts store didn't have the amps/volts needed)

So I swapped all of them just in case to no avail... What else could it be? It has a kill switch, u think it's that? I'm gonna replace it to a bigger amps one but thats a different story... Will post if the switch has any effect

 

[LouNY]

If it is a 3 wire solenoid it likely has a start and a run winding.
One wire should get power when the key is turned to crank,
when the key is returned to the run position the other lead should get power.
I would expect the run coil to be controlled by the stop relay,
when the relay is energized by the tractor running it should de-energize with the key off
removing power to the solenoid.
Check all your fuses.