NH TC29 DA starting problem again

[ranger13256]

My 2005 NH TC 29 DA starting problem is acting up again (still). I replaced the battery, battery to starter cables, new NAPA starting switch. After all that , it started fine for a few days then back to its click, click, click then start routine. The glow plug seems to be operating normally. Sometimes when warm it starts normally, sometimes not. Could it be the starter?

 

[thclimer]

Have you installed the dedicated starting circuit? My TC33D was acting like what you have described until did this modification, that was probably 20+ years ago.

 

[ranger13256]

Have you installed the dedicated starting circuit? My TC33D was acting like what you have described until did this modification, that was probably 20+ years ago.

No I haven't, what does that entail?

 

[Harry in Ky]

I just added a start relay on a TC40 on Friday Owner had been fighting if for some time and finally got fed up with it. Works fine now. You can source a kit from numerous suppliers or pick up a four or five pin parts house relay and make up your own wires. (which is what I do)

https://www.amazon.com/John-Deere-Starter-Relay-AM107421/dp/B07DF5JVDW/ref=asc_df_B07DF5JVDW?tag=bingshoppinga-20&linkCode=df0&hvadid=79852242639865&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=50643&hvtargid=pla-4583451718387623&psc=1&msclkid=26a775f17f1516a19da51c142ad8397b

 

[RjCorazza]

Here's a diagram I made up when I did my ZD mowers if you choose to do it yourself:

 

[thclimer]

The starting circuit modification is described in a few posts under the New Holland Forum (Owninig Operating), start at post #53 of this thread:

https://www.tractorbynet.com/forums/threads/tc33d-wont-start.124642/page-6

Here is another one:

https://www.tractorbynet.com/forums/threads/dx-33-starting-problem-fixed.127106/