BX2200 problem

[nbennett]

While I was out of town my teenager ran my tractor out of fuel. Now the tractor will start but will not stay running unless the key is held in the start position where it seems to run fine until you let go of the key. Any ideas? Thanks.

 

[Tom_H]

It seems like someone else had this problem several years ago. It wasn't related to having run out of fuel, but same problem otherwise. In that thread, someone asked the original poster to keep a close eye on the key when it was released. It turned out that when the key was released, it was somehow kicking back from the start position, past the run position, all the way to the off position.

I think what happens on the diesel, when moving the key from run to off, is that the fuel pump is shut down so no more fuel is injected (as there is no ignition system). Look and see how far the key is kicking back when released. When you normally release the key after startup, it should move to run position, and the fuel pump should continue sending fuel to the injectors. If too much kickback is the case, try holding the key as you let it move slowly from start to run position, then gently release.

BTW, re. teenagers, when they are your own, you love them dearly, but raising them can be like trying to negotiate with North Korea.

 

[milkman]

Check all your fuses, the one that controls the fuel cut off is probably blown.

 

[Tom_H]

Milkman's theory may also be right. I just ran some fuse checks on my BX2200. The very last fuse at the bottom of the box is labeled BX2200 SOLENOID. It is a yellow 20 amp fuse. When I pulled it, the BX would crank, but then shut down when the key was released. The attempts to restart the tractor after fuel depletion may have overloaded this circuit and blown the fuse. I now think this scenario is the most likely, though the switch kickback still could be a possibility as well.

 

[nbennett]

Problem solved - I hope. The solonoid fuse was blown and the second one blew pretty quickly. The third fuse didn't blow but the tractor wouldn't stay running. I then worked the key switch and it felt OK. Next, I decided to see if I could hear the fuel pump clicking after the tractor quit running. I started the tractor and it has run without fail ever since. My best guess is that the key switch has a bad contact. If it fails again I believe that will be the part that I replace. Many thanks for the suggestions.

 

[Tom_H]

Depending on how much time was spent trying to recrank after fuel depletion (it takes quite awhile to draw fuel all the way from the tank to the injectors; also did the teenager continue trying in vain to restart, not knowing why the engine would not run) could it be possible that the solenoid itself, or some other part of the starter motor, was damaged?

 

[David_Kb7uns]

Depending on the engine, some of the BX tractors have a one circuit external stop solenoid and some have a two circuit solenoid where one circuit is a stop and one runs the plunger the opposite direction to run the engine. Having the run solenoid fail will cause the stop plunger to float in the pump housing possibly causing the problem. I have a D902 and it is external the D905 may have the internsal?? Have heard that some of these two circuit solenoids are prone to failure and sometimes they show up on ebay at cheaper then dealer prices. You will probably need a ohm meter to check.

If the fuse for that circuit keeps blowing double check the wires under the seat that go to rear work light and see if they are pinched someplace as it is on the same circuit on some of the tractors.

David Kb7uns