310-8 not turning over with the key

[Whguy46041 10]

My 310-8 won’t fire when I turn the key. Engine won’t even turn over. It started when I went to take it out to mow and I turned the pto on and the engine bogged down and died. I fired it back up and it did it again. I got off and looked and the belt was lodged under the pulley. Every since then it has not fired when I turn the key. I can start the tractor if I jump the solenoid with a screw driver but that’s the only time. I replaced the starter solenoid today and nothing. I took a test like to the ignition switch and there is no power to it at all. All my fuses are good and I’ve checked all the grounds. I’m also terrible with electrical issues, I just want to stay away from the shop if I can. 

[Achto 29,503]

Sounds like you may have a safety switch that is not working.

[Whguy46041 10]

Just now, Achto said:

Sounds like you may have a safety switch that is not working.

That’s what I’ve read. I’ve researched for a few days now. Is there a way to test these switches ? Hell I only know where the seat switch is on this 310. 

[Achto 29,503]

A simple test light will tell you if power is passing through the seat switch to the starter. Also will need to check the PTO safety and the neutral safety switches.  

[gwest_ca-(File Mod) 11,559]

What is your model number? The wiring changed a few ties as features were added.

Garry

[Whguy46041 10]

24 minutes ago, Achto said:

A simple test light will tell you if power is passing through the seat switch to the starter. Also will need to check the PTO safety and the neutral safety switches.  

Took a test light to every electrical connection possible. The only thing showing that had power is the positive terminal on the battery and the positive terminal on the solenoid. There’s no power to the ignition switch, seat safety switch, pto lever switch, what looks to me like a capacitor, Headlight switch etc. 

 

3 minutes ago, gwest_ca said:

What is your model number? The wiring changed a few ties as features were added.

Garry

My model number is 21-10k805

[Roblox 6]

try unpluging the seat switch

[Whguy46041 10]

4 minutes ago, Roblox said:

try unpluging the seat switch

Tried that no luck. 

[gwest_ca-(File Mod) 11,559]

The correct diagrams

Garry

[Whguy46041 10]

11 minutes ago, gwest_ca said:

The correct diagrams

Garry

I appreciate the schematics of the wiring but it’s a foreign language to me. I think it’s just going to usb to go to the shop and get fixed. 

[roadapples 6,984]

Clean the contact's on the amp gauge.... You're not getting power to the switch..

[Whguy46041 10]

14 minutes ago, roadapples said:

Clean the contact's on the amp gauge.... You're not getting power to the switch..

I will get on that tomorrow morning. I gave up after 6 hours today on my 310 and my 69 charger 12

Edited May 16, 2020 by Whguy46041

[gwest_ca-(File Mod) 11,559]

Since you had a belt problem it is possible the clutch pedal switch got disturbed. If you look down past the shifters to the right side panel you will see the switch. The drive belt idler arm/pulley activates the switch with the pedal down to send power on to the starter solenoid.

Here is picture of the switch

https://www.partstree.com/parts/toro-110970/

They say it is no longer available but I don't believe that. Some dealers still show it as available.

 

Garry

[SylvanLakeWH 28,841]

It looks like the PTO handle is fully engaged, but have you tried simply jiggling it and re-engage / disengage? Don’t ask me how I know , but the PTO lever may just be partially engaging the safety switch... 

[Whguy46041 10]

12 minutes ago, SylvanLakeWH said:

It looks like the PTO handle is fully engaged, but have you tried simply jiggling it and re-engage / disengage? Don’t ask me how I know , but the PTO lever may just be partially engaging the safety switch... 

I’ve wiggled it back and forth when starting. It’s not engaged at all. It has to be something stupid easy I just can’t figure it out haha 

[953 nut 60,669]

Have you checked the engine oil level?  There is a switch in the engine that will prevent the engine from starting from the key with low oil level.

The safety switches on the PTO are a bit hard to get to, but half of that switch will prevent the engine from starting from the key if it is not all the way back.

You do not have an amp meter so you can disregard that suggestion. Take another look at the fuse and fuse holder on the wire that comes from the "+" side of your solenoid going to the "B" terminal of the ignition switch. Being near the battery they tend to corrode inside. That fuse is the only component (other than the wire itself) that could prevent voltage from making it to the ignition switch.

[Rob R 977]

There is a clutch safety switch looks like a small ball bearing on the right side sitting on the tractor it is engage with you push the clutch in this is what gave me grief until I found it.... just follow the puley that moves when you push the clutch in the arm of this pushes in the ball bearing switch..... would be good to have two people that arm wears of gets bent out a bit and doesn't  engage the switch properly. Take the belt cover off and you will find it.

Edited May 17, 2020 by Rob R

[Whguy46041 10]

7 minutes ago, 953 nut said:

Have you checked the engine oil level?  There is a switch in the engine that will prevent the engine from starting from the key with low oil level.

The safety switches on the PTO are a bit hard to get to, but half of that switch will prevent the engine from starting from the key if it is not all the way back.

You do not have an amp meter so you can disregard that suggestion. Take another look at the fuse and fuse holder on the wire that comes from the "+" side of your solenoid going to the "B" terminal of the ignition switch. Being near the battery they tend to corrode inside. That fuse is the only component (other than the wire itself) that could prevent voltage from making it to the ignition switch.

Engine oil level was good. Wiring looks good 

[Whguy46041 10]

4 minutes ago, Rob R said:

There is a clutch safety switch looks like a small ball bearing on the right side sitting on the tractor it is engage with you push the clutch in this is what gave me grief until I found it.... just follow the puley that moves when you push the clutch in the arm of this pushes in the ball bearing switch..... would be good to have two people that arm wears of gets bent out a bit and doesn't  engage the switch properly. 

I followed the pulley but didn’t see a ball bearing. 

[953 nut 60,669]

15 minutes ago, Whguy46041 said:

Wiring looks good 

Looks can be deceiving, use a test light or meter and go step by step from a known good source of voltage (solenoid "+" side) and be sure that voltage is present. The sudden vibration from the belt problem could have caused a marginal wiring issue to become worse. Use a logical step by step approach to your trouble shooting. Print a copy of the wiring diagram that Gary @gwest_ca gave you and start at the battery and follow it item by item to the point where voltage no longer is showing up.

10 hours ago, Whguy46041 said:

I took a test like to the ignition switch and there is no power to it at all.

Without power at the ignition switch you are not going to have the engine crank over from the key switch. Don't spend time on other things until this is resolved. 

16 minutes ago, Whguy46041 said:

followed the pulley but didn’t see a ball bearing.

With the belt cover removed look at the arm that the idled pulley is mounted on and follow the arch it makes. there is a switch that it makes up when it is near the bottom. It may be a small white lever, that is what my 310-8 has.

[gwest_ca-(File Mod) 11,559]

Maybe this drawing will help.

The starter circuit starts at the ignition switch tan wire and goes to purple and so on to get to the starter solenoid. Notice the related switches are closed to make that happen.

The rear of the ignition switch illustrates what wires are where in reference to the 5-wire plastic connector.

 

Garry

 

[Whguy46041 10]

1 hour ago, gwest_ca said:

Maybe this drawing will help.

The starter circuit starts at the ignition switch tan wire and goes to purple and so on to get to the starter solenoid. Notice the related switches are closed to make that happen.

The rear of the ignition switch illustrates what wires are where in reference to the 5-wire plastic connector.

 

Garry

 

Garry I used this diagram and started with a test light. I have no power on start or battery coming off the switch. There’s no power coming from the relay as well. I have power going to the solenoid from the battery but that’s it 

[Whguy46041 10]

28 minutes ago, Whguy46041 said:

Garry I used this diagram and started with a test light. I have no power on start or battery coming off the switch. There’s no power coming from the relay as well. I have power going to the solenoid from the battery but that’s it 

This wire was set as a ground. I put this on the positive side of the solenoid I get power to the test light and the fuse is now hot. It appears to be black and orange 

[gwest_ca-(File Mod) 11,559]

Does that wire go to that fuse?

 

With the key OFF the red wires should all have power. That is what supplies the ignition switch. Get that working first.

 

The relay will do nothing if it is working correctly and the oil is not low with the low oil switch working. Deal with that later.

 

Use the battery negative post to ground the test light in case the grounds are bad.

 

Keep us posted.

 

Garry

 

 

[Whguy46041 10]

19 minutes ago, gwest_ca said:

Does that wire go to that fuse?

 

With the key OFF the red wires should all have power. That is what supplies the ignition switch. Get that working first.

 

The relay will do nothing if it is working correctly and the oil is not low with the low oil switch working. Deal with that later.

 

Use the battery negative post to ground the test light in case the grounds are bad.

 

Keep us posted.

 

Garry

 

 

All red wires are now hot and I have power to the ignition switch now. That wire runs to the 15 amp fuse. I moved it to the + side on the starter solenoid.