2015 NX5510 Manual Open Station no start, suspect starter/solenoid

   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid #1  

HaplessKiotiOwner

New member
Joined
Aug 7, 2025
Messages
3
Tractor
2015 Kioti NX5510 Manual Open Station
Greetings and salutations,

My 2015 NX5510 manual open station has failed to start for some time now. It last started in late winter/early spring during which time I ran a regen cycle on it because it told me to. I did noticed it sounded a little weak when starting but I also note that I failed to fully let the glow plugs do their thing (ie I cranked the key not thinking about it). After a heavy spring rain I went to start it to groom the gravel road I live on and got nothing. The dash lit up, glow plug indicator went out as normal but when I cranked the key to start nothing happened. Suspecting maybe I had let the battery drain I gave it an overnight charge and tried again. Nothing. Tried several more times. Soon the dash lights got dim and I started to get relay clicks out of the fuse box. During one attempt the clicking stopped and suddenly the dash lit up again (I think I held the key in start a few extra seconds during this attempt) but still got no cranks out of the engine. I've figured whatever, I'll try again another day. That day was yesterday. Same symptoms. I can rule out the seat safety as the previous owner bypassed that prior to my purchase and it has never been an issue. So I broke out the multimeter. The battery is producing voltage and the same voltage can be read at the starter solenoid post that leads to the positive battery terminal. I've done my searching through the threads and found the starter circuit wiring chart posted as well as how to test the ignition switch which may also be an issue as it has been raining hard and often this year and some suggested that is an issue with open station. So I grabbed a piece of wire and with the tractor off I tried jumping the starter to see if I could hear the solenoid activate. Nothing. No sound at all. But I want to make sure I am testing this right. Per the image below (hopefully it post) I put one end of the wire on the battery lead terminal of the solenoid and the other end on what I believe is called the control post (the L shaped post with the smaller wire coming off of it that runs back under the hood). Since I was by myself and don't have a remote starter switch I figured this was the safe way to test, but it may be wrong. Do I need to have the key turned to test this? Also if I can get it to jump and start this way I am aware of how to test the start relay and the safety control module. Those along with the ignition switch will be my next points to test, so nobody needs to rehash that data for me. I just wanted to start at the easiest point which to me is the starter and solenoid and am for lack of a better term a mechanical idiot who probably shouldn't be working on anything.

Attachments

  • 0 bytes · Views: 0

starter.jpg
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid #2  
When you tested it with a wire, you did get power from the bottom terminal with the battery cable, correct? That should have activated it, if it just clicked and didn't engage and start turning the engine over, that would be an issue with the solenoid not allowing the main terminals to bridge. If you don't get a click or anything, it's possible the solenoid lost internal connection to the windings. Either way, it looks like it comes apart easily and can be serviced.
Of course the first thing that should be checked are battery terminals for no corrosion at the posts, and the ground cable to frame / engine for good clean connection.
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid #3  
I have the same issue right now with my cabbed HST NX. I had the hood up, it rained, and now no start on the ignition switch. To start, key on and then jump the solenoid. FWIW, I am using a remote starter.


starter.jpg
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid
  • Thread Starter
#4  
Correct, I did get power from the bottom terminal with the battery cable. I didn't even get a click, so it sounds like pulling the solenoid is a good next step. While I may be an idiot, my father is a retired electrical engineer and I've got him coming over this weekend to help. It was his thought that we pull it to look at it and test it in a more controlled environment should we fail to be able to jump it. By your thinking he seems to be on the right track. Since we don't have a remote starter switch he is also going to rig one together for us with some alligator clips.

I did notice there is some gunk on the connectors that screw onto the battery post, so I'll be cleaning those in the meantime. I'm also going to pull the connections from the post on the solenoid to clean them just as a good measure. Thanks for the reply, and I love the quote involving Mr. Heemeyer.
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid
  • Thread Starter
#5  
I have the same issue right now with my cabbed HST NX. I had the hood up, it rained, and now no start on the ignition switch. To start, key on and then jump the solenoid. FWIW, I am using a remote starter.


View attachment 3871256
Good to know. The only thing I didn't do is have the key in the run position. Per my other reply my father is rigging up a remote starter switch for us to use this weekend when we test further. Thanks for the reply.
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid #6  
Correct, I did get power from the bottom terminal with the battery cable. I didn't even get a click, so it sounds like pulling the solenoid is a good next step. While I may be an idiot, my father is a retired electrical engineer and I've got him coming over this weekend to help. It was his thought that we pull it to look at it and test it in a more controlled environment should we fail to be able to jump it. By your thinking he seems to be on the right track. Since we don't have a remote starter switch he is also going to rig one together for us with some alligator clips.

I did notice there is some gunk on the connectors that screw onto the battery post, so I'll be cleaning those in the meantime. I'm also going to pull the connections from the post on the solenoid to clean them just as a good measure. Thanks for the reply, and I love the quote involving Mr. Heemeyer.

FWIW, a guy can bench-test a solenoid with the starter removed, and it will work, but it will not work when under a load. FWIW, I see this happen mostly with outboard motors. Anyway, somewhere on here is a thread on buying just a solenoid for your starter.

Without a remote starter switch, I suggest using a wrench or a screwdriver to test jump the solenoid, as I'm skeptical you made a good enough connection with a bit of wire.
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid #7  
Eric, just a point of clarity, if you use a screwdriver to jump the big terminals you are essentially bypassing the solenoid and putting battery power directly into the starter motor. If it doesn't spin then, especially if voltage is present at the cable terminal I would suspect that there isn't sufficient grounding.
A remote starter is just a wire with alligator clips, with a momentary switch in it, so a test lead should do fine. You're quite correct about them bench testing fine when removed, that was the issue I had with my forklift.
 
   / 2015 NX5510 Manual Open Station no start, suspect starter/solenoid #8  
Eric, just a point of clarity, if you use a screwdriver to jump the big terminals you are essentially bypassing the solenoid and putting battery power directly into the starter motor. If it doesn't spin then, especially if voltage is present at the cable terminal I would suspect that there isn't sufficient grounding.
A remote starter is just a wire with alligator clips, with a momentary switch in it, so a test lead should do fine. You're quite correct about them bench testing fine when removed, that was the issue I had with my forklift.

By jumping battery hot (the starter has 12v positive) to the solenoid, you're asking the solenoid and the bendix to work. If the connection is good, the solenoid will work and the starter will be energized. If a good connection is made and the solenoid does nothing, your solenoid is bad.

Notice the remote starter switch I linked to can carry 30A on a 12v system, because even the control side of the solenoid, there can be a bit of a load.

Jumping lug to lug, or as you said, "if you use a screwdriver to jump the big terminals," is by-passing the solenoid and the Bendix, which is NOT what I showed to do. I want 12v battery positive to the CONTROL side of the solenoid.
 

Tractor & Equipment Auctions

2008 INGERSOLL RAND DD-16 SMOOTH DBL DRUM ROLLER (A51242)
2008 INGERSOLL...
2020 JOHN DEERE 3032E TRACTOR LOADER BACKHOE (A51243)
2020 JOHN DEERE...
2016 Big Tex 24ft. T/A Flatbed Trailer (A50323)
2016 Big Tex 24ft...
3014 (A50657)
3014 (A50657)
IH Farmall 706 Tractor (A50514)
IH Farmall 706...
2003 DITCH WITCH 3700 RIDE ON TRENCHER (A51242)
2003 DITCH WITCH...
 
Top