Yesterday, a local man called to see my 55 860 which is currently advertised on CL.
Knowing that it had not been started for about six weeks, I decided to start it before he arrived. I usually do not do this so that potential buyers can see a cold start, but the temperature was around 40 F and the 860 has summer formula gasoline in it, which will make it start much harder in cold weather.
Hmmm, no crank. I always charge storage batteries periodically during periods of non use and this one had been charged about two weeks ago.
Checked records and found that battery had been installed 11/10. OK, eight years pretty good for 6V but due for replacement. Connected AC charger/booster and 860 started right up. Everything working as it should.
Caller arrived and looked at tractor for over an hour. I explained to him upon arrival that battery had failed and I would replace it whether he bought it or not.
Caller interested in tractor but he told me that he wanted it to replace a worn out 60 PTO HP IH 656 diesel to run a round baler. I told him that it was not big enough and he went on his way. Had he told me what he had planned to use it for on the telephone I could have saved him a trip but he had not. Fortunately, he was only about 10 miles away.
Decided to remove battery from non used 64, 4000 potential retirement project to install in 860 for sale. Will buy new battery for 4000 in future. Did so this morning. Again no start. 4000 had not been started in months but battery had been charged routinely with maintainer every 4-5 weeks. Checked records again and found that 4000 battery had also been installed in 11/10. Coincidence.
More of a coincidence that both batteries installed at same time failed at same time. Batteries were identical and from receipts bought from same store in same month but not same day. Never happened to me before.