B2920 won’t start

[dragoneggs]

After reading through this, my gut is telling me it is a safety switch. They can be buggers! Inspect those carefully. Do you have a multi-meter where you can check for continuity across the switches. I would start with the seat. Wiggle them around a bit too. In case it is an intermittent short.

 

[mhart]

After reading through this, my gut is telling me it is a safety switch. They can be buggers! Inspect those carefully. Do you have a multi-meter where you can check for continuity across the switches. I would start with the seat. Wiggle them around a bit too. In case it is an intermittent short.

I don’t but I can get one. Besides the seat switch, what others would you look at and where. I am not very experienced in working on tractors.

 

[gimmodog]

if it clicks when the key is turned to run then that is the fuel solenoid opening to allow fuel. If it clicks when the key is turned to start then a safety is not the problem. When a safety is keeping it from starting you will hear nothing and it will do nothing when turned to start. Yes electrical troubleshooting can only be done properly by using a multi-meter. You should get one learn how to use it and take some readings. If you need help with what and how to do some of the test we can help guide you along then hopefully you can get this figured out.

 

[dragoneggs]

Re: B2920 won稚 start

if it clicks when the key is turned to run then that is the fuel solenoid opening to allow fuel. If it clicks when the key is turned to start then a safety is not the problem. When a safety is keeping it from starting you will hear nothing and it will do nothing when turned to start. Yes electrical troubleshooting can only be done properly by using a multi-meter. You should get one learn how to use it and take some readings. If you need help with what and how to do some of the test we can help guide you along then hopefully you can get this figured out.

Ah... yes sorry! If it is clicking then it is not a safety. But I do recommend getting yourself a multimeter. You don't need to spend a bunch of money on a fancy one, but learning how to test voltage, continuity, amps, is pretty easy, and helps you learn about electricity and your equipment.

 

[mhart]

Sorry guys for confusing information. It clicks when turning to run. But does not click when turning to start.

I agree, I need to get these tools and get more familiar with how to diagnose these things

Thanks so much!

 

[bill18163]

Just curious. In your post on 11/1 you mentioned "When jumping it I used battery as ground and this has worked in past.". Have you had to do much jumping to start your tractor in the past? Have you ever checked the fluid level in your battery? That's if you don't have a sealed battery. Have you ever replaced your battery?

 

[mhart]

I’ve had to jump it in past a time or 2. It’s due for replacement. I am going to do that and see what happens.

 

[gimmodog]

not getting anything when turning to start does suggest some safety not making. I don't know this tractor so I don't know what type of safeties it has

 

[radios1]

all of the BW wires should have 12 volts on them in cranking mode, EXCEPT the BW wire that goes to the safety switches, THAT HAS to be at ground for the starter to work.. does this tractor sit outside in the weather without a cover?. you could have corroded connections (SMALL wires) from doing that. the tractor working fine, then letting it sit suggests a corroded connection, rain is terrible on tractors, and the relays on them too. you could have a rusted relay..

 

[bill18163]

I would not replace your battery until you find your problem. When I asked if you had ever replaced your battery I wondered if you had possibly replaced it with one that was under powered and then it would get run down faster than a correctly powered one. At the very least take the batt out of your tractor and have it tested before you spend money for a new batt that you might not need. The original batt in my B2710 lasted 13 years before I had to replace it. It was mentioned in some of the posts about testing your cut out switches to see if any of them are bad. If you don't know how to use an ohm meter to test the switches an easy way to test them is to by pass them with a piece of wire one by one. Get a short piece of bare copper house wire(#14 or #12) and bend it into a horseshoe shape. Start with the switch under your tractor seat. Lift your seat up and disconnect the plug from the switch. There will be two copper tabs in the female plug. Jump the two tabs by plugging the horseshoe wire into the tabs. This simulates you sitting on the seat. The tractor doesn't know you are not sitting there. Now try to start your tractor. If it doesn't start, the switch under the seat is probably not your problem. You have eliminated that one switch by testing it that way. Remove the horseshoe wire and reconnect the plug. Now if you can find the other cutout switches on your tractor and do the same thing you will either find that one of them is bad or they are all good and now you have to move on to other testing. One other thing. It would be really far fetched that two of these switches are bad but if that were the case this type of testing would not work. But that possibility would be enormous. Also with these switches. If they are push button type make sure that the button is being depressed all the way. If a holder for the switch is loose and the button doesn't go all the way down, that would cause your problem too. Look at the switch under your seat to get familiar with them. There should be a switch for your clutch pedal, neutral on your gear selector, PTO engaged, lawn mower engaged, etc. If I have missed any of them maybe someone else on this board can fill in what I have missed. Get that batt checked out to start with and get it charged if needed and then come back to this board and let us know what you found.
Actually I just thought of this that you could try if you haven't yet tried it. I know it sounds stupid but have you made sure that none of your engagement levers are in gear? If any of these items are engaged the tractor will not start. PTO, mower, tranny should be in neutral, clutch pedal pushed down.