Steevo
Member
- Location
- Gloucestershire
CX8060 2007
New Holland Combine - 24v start
- Thread starter Steevo
- Start date
CX8060 2007
yellow belly
Member
- Location
- south west lincolnshire
My case from around that year had issues with batteries and was found to be a fuse that allowed the second battery to charge up
I would recharge the batteries off the combine then the one that runs the 12 volt system would stay charged the other that was only needed for producing the 2nd 12 volts in the 24 volt starting system would eventually have not enough charge for starting once the fuse was replaced it kept being recharged
if your has a similar system if the second 12 volts battery is weak it may not need much ti drain it to prevent starting
equally the negative and possitive terminals need to be in good condition on both batteries and the earths good
I have had issues with starting on older machines due to poor earth and long earth cable loosing there conductivity
combine batteries are a long way from the starter and earth straps can loose efficiency especially when the temperature is below 10c starter moter can also become hungrier
I have found £ 60 on the starter can save battery issues
I would recharge the batteries off the combine then the one that runs the 12 volt system would stay charged the other that was only needed for producing the 2nd 12 volts in the 24 volt starting system would eventually have not enough charge for starting once the fuse was replaced it kept being recharged
if your has a similar system if the second 12 volts battery is weak it may not need much ti drain it to prevent starting
equally the negative and possitive terminals need to be in good condition on both batteries and the earths good
I have had issues with starting on older machines due to poor earth and long earth cable loosing there conductivity
combine batteries are a long way from the starter and earth straps can loose efficiency especially when the temperature is below 10c starter moter can also become hungrier
I have found £ 60 on the starter can save battery issues
Exfarmer
Member
- Location
- Bury St Edmunds
I may be wrong, as I am working from a few years back.
do these combines use Fiat engines?
if so, they used to use a system which switch the polarity round on one battery during starting to give 24 volts. This has a huge advantage as the Starters motors and wiring required is far smaller, all round for this heavy load.
obviously this 24 volts can only travel in a dedicated circuit as it would blow anything designed for 12 volts to pieces.
so during startting the power for the rest of the system comes off one battery, charging and everything else is 12 volt.
do these combines use Fiat engines?
if so, they used to use a system which switch the polarity round on one battery during starting to give 24 volts. This has a huge advantage as the Starters motors and wiring required is far smaller, all round for this heavy load.
obviously this 24 volts can only travel in a dedicated circuit as it would blow anything designed for 12 volts to pieces.
so during startting the power for the rest of the system comes off one battery, charging and everything else is 12 volt.
- Location
- Lincolnshire
What jump lead points do you have then? My CX has a + and -, it reads 12v across them... so if I have jump leads on am i connected to both batteries?
- Location
- Cirencester
Maybe you have a drain somewhere? But would have thought if the isolator is working correctly it'd be fine. Started my CX 6080 up the other day, expected the batteries to be flat/low but she spun over fine, no issue. You'd have never of known she had sat there for three months not used.
Have sent you a PM.
- Location
- Down south
Afternoon, thought I’d seen a thread about it somewhere, has anyone got a photo of the correct way to wire up the battery isolator? Pretty sure mines wrong as it’s drained 2 new batteries since January.. cheers
ollie989898
Member
Get yourselves a 24V CTEK charger and avoid all this grief.
ollie989898
Member
CTEK charger is £200.
Steevo
Member
- Location
- Gloucestershire
Not sure it's quite that simple.
It's not a 24v system like a lorry would be - it's a mix and match of 12v and 24v.
Steevo
Member
- Location
- Gloucestershire
ollie989898
Member
Separate them and get two CTEK chargers.
ollie989898
Member
Iveco engine I would think?
Steevo
Member
- Location
- Gloucestershire
Exfarmer
Member
- Location
- Bury St Edmunds
Are you sure you mean the isolater? They need a continuous feed to the electrics, or you will have endless problems there.
- Location
- Down south
I’ve got power and the relays click when I turn the key.. full 12v but won’t even attempt to start , any idea ?
Exfarmer
Member
- Location
- Bury St Edmunds
You need 24 volt at the starter when you turn the key, it would appear the changeover switch is not working
cosmagedon
Member
- Location
- North Wales
Same system in the NH foragers, on our older one we disconnected the battery after it was put away for winter and connected it every few weeks when it was started and warmed up. We never had issues with the computers losing memory.
Easiest way to find if you've got a drain with no tools is disconnect the battery and then touch the lead back on the terminal, if there's a spark it means something is drawing. Depending how big the spark is you can tell how big a draw you have.
As said earlier, most parasitic losses are add on wiring so check this first, pull the fuse out to it then touch it back again and see if it sparks. Go through the whole fuse box and check them then you will see what system is drawing the power.
Easiest way to find if you've got a drain with no tools is disconnect the battery and then touch the lead back on the terminal, if there's a spark it means something is drawing. Depending how big the spark is you can tell how big a draw you have.
As said earlier, most parasitic losses are add on wiring so check this first, pull the fuse out to it then touch it back again and see if it sparks. Go through the whole fuse box and check them then you will see what system is drawing the power.
Netherfield
Member
- Location
- West Yorkshire
Does the machine have a 24v alternator fitted or does the charging work on electronic trickery?
It all sounds like a ridiculous system, why not just have a full 24v setup throughout like HGVs do.
It all sounds like a ridiculous system, why not just have a full 24v setup throughout like HGVs do.
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