New Holland Combine - 24v start

[Combine Rescue]

Is not that really trickery.
Starter relay switch batteries in serial when crank and in parallel when not. But is not simple to see how is that connected on machine without wiring info.
Why is not like on HGV? No idea.
It could be to save money on wiring harness.

 

[Steevo]

Main question is why any 24v at all??

 

[Lincsman]

Main question is why any 24v at all??

Big engine?.... reduced size in wiring all the way to the starter?... cheaper starter?

 

[Two Tone]

A NH CX8060 with an Iveco engine will have a 24v starter
But a CX6080 with the NEF engine will be a 12v starter. However, the its Add Blue system uses 24v.

I had a TF 78 with an Iveco that had the 24v starter. There was a special exposed fuse on the change-over system, which if it went would still try to turn the starter, But make you think that the batteries were flat.

 

[Driller]

I’m getting power to the key, but won’t even look to turn over, so I’m thinking starting relay? I know there’s a relay up in the engine bay which might be the problem as that went in my old cx.. Anything else it could be? Oh and has anyone deleted the adblue on a cx/cr ? As my sensors are going awol

 

[Combine Rescue]

Neutral start circuit. There is micro switch in FNR lever.

 

[Driller]

Neutral start circuit. There is micro switch in FNR lever.
[/QUOTE
I can hear the relay click when I move the F/R lever so don’t think it’s that

 

[Steevo]

Good news! One new battery and charging up the "good" one has made it work again.......for now!

Latest update - unsurprisingly it wouldn't start today. Second new battery on it now and working well.

Just hope that continues...!

 

[Combine Rescue]

Check alternator if charging correctly and is not overcharging. Or you will need new battery again.

 

[Steevo]

Check alternator if charging correctly and is not overcharging. Or you will need new battery again.

Thank you, I will ask my man in a van to do that.

The two NH batteries that were on there before were pretty old and I'm told aren't made like that anymore so it appears they have done a fair amount of time.

 

[KennyO]

@Steevo does this help

 

[Steevo]

@Steevo does this help
View attachment 885479

Thank you. I have this sticker on my machine too. Couldn't really make sense of it until I was mulling it over yesterday putting together other comments in this thread.

I read that as:

Photo 1 - if you want to connect an auxiliary battery, attach it to the rear-most battery
Photo 2 - don't connect an auxiliary battery to the forward-most battery
Photo 3 - don't connect an auxiliary battery to the -ve terminal of the forward most battery and +ve terminal of the rear-most battery.

I still question the purpose of the sticker though. Assuming that it swaps one battery round when starting, I can't see how a single aux battery helps unless just for providing 12v to shut the tank lids, or something like that.

 

[MF-ANDY]

Check out your isolators before spending on batteries
They’ve been problems

like this one

 

[Driller]

View attachment 885588like this one

Exactly what I found with mine, didn’t realise the adblue runs on the 24v system aswell as I had loads of dpf errors come up as well as not starting .... found out it was the isolator

 

[KennyO]

Thank you. I have this sticker on my machine too. Couldn't really make sense of it until I was mulling it over yesterday putting together other comments in this thread.

I read that as:

Photo 1 - if you want to connect an auxiliary battery, attach it to the rear-most battery
Photo 2 - don't connect an auxiliary battery to the forward-most battery
Photo 3 - don't connect an auxiliary battery to the -ve terminal of the forward most battery and +ve terminal of the rear-most battery.

I still question the purpose of the sticker though. Assuming that it swaps one battery round when starting, I can't see how a single aux battery helps unless just for providing 12v to shut the tank lids, or something like that.

It does jump start it according to my mechanic.

Guess it wont if the front one is completely knackered though.

 

[Steevo]

It does jump start it according to my mechanic.

Guess it wont if the front one is completely knackered though.

Interesting, thank you. The mechanic I had out yesterday was of the opinion that the combine could not be jump started......it was the front battery that was dead though but I'm unsure whether that was the basis for his comments.

I did ponder earlier in this thread whether a NOCO on each battery would work. Could work out expensive if it doesn't and causes damage one way or another though.

 

[KennyO]

Interesting, thank you. The mechanic I had out yesterday was of the opinion that the combine could not be jump started......it was the front battery that was dead though but I'm unsure whether that was the basis for his comments.

I did ponder earlier in this thread whether a NOCO on each battery would work. Could work out expensive if it doesn't and causes damage one way or another though.

My mechanic said he would happily put jump leads on either battery to 'test' which one was the problem. (He is New Holland trained and a local expert)
Personally I would use my battery tester to be on the safe side and individually charge the batteries unless I was desperate to get it moving.

 

[Two Tone]

I was always taught that whenever you are using batteries in a pair, that if you have 1 that goes bad, you must replace both at the same time. Or you will soon find both the new one and the old one left will damage very quickly.

On something like a Combine, for goodness sake don’t try and skimp by trying to save the cost of buying 1 new battery instead of 2! You Could risk doing untold Damage to the all sorts of electrical components. especially on a 24 volts starting system, where everything else (bar an Addblue stystem) runs on 12 volts.

If your combine struggles to start after up to 3 weeks of being idle, change both immediately.

Also, bridge link another battery to each old battery terminals while you swap them to avoid losing Power and settings from Inteliview, such as reel speed. If not, your reel might not rotate at all, requiring a dealer to reset everything.