Case S 6 Volt

AZ GARY

Member
It is time for a new battery. I have heard that you can put in an 8 volt battery and the starter
will work for short bursts. What about charging the battery with a regular 6 volt generator
 
(quoted from post at 23:22:07 11/20/17) It is time for a new battery. I have heard that you can put in an 8 volt battery and the starter
will work for short bursts. What about charging the battery with a regular 6 volt generator

I don't think they sell an eight volt battery anymore, or a battery charger that charges 8 volts. The only choices you have is to stick to the six volt or convert to twelve volt.
 
The guy at the automotive electric shop told me that a 6 volt generator will no fully charge an 8 volt battery. Are your battery cables large enough for a 6 volt system? Sometimes I have cable corrosion issues, but the 6 volt turns over my Case SC fine.
 
Most places that handle batteries either have 8 volt batteries in stock or can get them for you. If you put a 8 volt battery in a tractor that has a generator you can take the generator to a repair shop and they can adjust the regulator up to kept the 8 volt battery charged. I due my own, put a volt meter on the output side and adjust accordingly. If your not familiar with doing this, take it to a shop. I like the 8 volt batteries. I have a VAC and a model S that both have been rebuilt, very few hours on them and a 6 volt just won't start them unless they fire right. 8 volt spins them right over.
 
C. Amick is correct. Forget the 8 volt, go with a Group 1 6 volt & maybe go with new cables if you need them. No smaller than 1 gauge. This is for all 3 cables, Pos., Neg., & the switch to starter cable. Sounds like a lot, but anything else, such as an 8V battery is a band aid. I have seen cobs where a person went to the auto parts store & came back with 4 gauge. Will not work. Battery cable is like water pipe, the bigger the need for water, or in this case current, the larger the pipe, or cable. And like pipe, over time, the cable loses it's ability to carry current.
 
Forget the 8volt battery.

What you need to do is first remove the starter clean the commutator and oil the bearings. Then clean the mounting hole with a small drum sander till you have clean bare metal.

next clean the nose of the starter with a wire wheel. This will greatly improve the ground connection.

Bad ground between the starter and block is the number one reason why S series tractors won't crank.

If it still has a problem. Replace the big push bottom on the dash. Make sure the ground cable connection is free of rust and paint where it connects to the frame.
 
(quoted from post at 16:13:04 11/21/17) Thanks for all the information. I'll check out the cables and stick with a 6 volt battery.

Good choice. I actually like 6v systems for tractors. You just need to keep the connections clean, and the right size cables.
 
Even if you can charge it right, 8V batteries are designed to deliver lots of anp-hours, that is, to crank for a long time, rather than give a huge push for a short time, which is what you need in a start battery. A 6V system can demand 800 CCA (cold cranking amperes) and you're just not going to get that from a deep-cycle battery. These 8-volters have become the industry standard for electric golf carts, a pack of 6 makes a 48V system. Goal is to get two 18-hole rounds in and still make it home, not trying for a 15 or 20 second 1/4 mile.
 
After hearing all the negatives about changing to 8 V I'm going to check all the wires and contacts and stay with the 6V
 

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