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Cub Charging Problem!!!

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DaveB

01-31-2004 13:17:43

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I Bought a 1962 International Cub Lo-Boy Ser # 16152J which came with a dead 12 volt battery. I replaced the 12 volt battery with a new one with the battery negative ground and it starts and runs fine but the battery just keeps discharging and once shut off the Lo-Boy will not restart unless jump started. On further research I crossed referenced the starter ser# 1109611 as a 6 volt starter. I am now wondering if I should purchase a 6 volt battery and positive ground it and see if the generator will keep the 6 volt battery charged as I'm wondering if this system is still a 6 volt system. Any advice is greatly appreciated in advance and I'm wondering if I may have done damage using a 12 volt battery on what may be a 6 volt system.

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Bus Driver

01-31-2004 15:45:14

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Re: Cub Charging Problem!!! in reply to DaveB, 01-31-2004 13:17:43

Originally, the LoBoy's changed from 6 volts to 12 volts beginning with serial number 16398. The 1109611 is a 6 volt starter and just maybe that number is a replacement part. It looks as if that starter might be not original, but a repair part only. Not certain about that. Unless someone has changed some other parts of the charging system, your tractor is one of the last of the 6 volt models. Do the lights work?

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DaveB

01-31-2004 17:34:43

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Re: Re: Cub Charging Problem!!! in reply to Bus Driver, 01-31-2004 15:45:14

Thanks for replying to my post. I have no lights and Ammeter appears to be stuck on a slightly charge condition. Please read my response to Dennis.

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dennis

01-31-2004 15:10:05

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Re: Cub Charging Problem!!! in reply to DaveB, 01-31-2004 13:17:43

hey! get it started and with a multimeter set on a dc range touch the positive and negative of the battery and monitor the voltage, 12 volt system should put out up to 14.0 vdc, you may have to throttle up a little to see and increase on the meter , if it is a six volt system you may have cooked the regulator! good luck

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DaveB

01-31-2004 17:29:13

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Re: Re: Cub Charging Problem!!! in reply to dennis, 01-31-2004 15:10:05

Thanks for your response. I've fully recharged the battery to 12.5 volts and with engine running at any speed it still reads 12.5volts DC. After running the Tractor for about 2 hours when I read across the battery it reads 7.5 Volts and I can't restart with the battery unless jump started. Actually what I'm confused about is what at this point is keeping the Tractor running after being jump started, the battery or generator?? I also replaced the coil with a 12 volt coil with no internal resistor. Can I pull the battery leads off while the Tractor is running and read across them without damaging anything??

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Bob

01-31-2004 19:07:49

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Re: Re: Re: Cub Charging Problem!!! in reply to DaveB, 01-31-2004 17:29:13

A working 12 Volt generator would give a reading of about 13.5 to 14.5 Volts across the battery with the engine running.

Your 12.5 Volt reading is just the battery voltage.

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