I have an L3010. I changed out the glow plug relay. Day before doing that , lights were dinning, wouldn’t shut down when I turned the key off. Replaced the battery as it was old and positive connector was bad. Replaced the end connector. Tractor won’t turn over, dash lights come on, once it did a weak turnover. Tested battery, good @ 12, checked starter has 12 volt at the feed. Wont turn over. Appreciate any ideas.