Posted 5/4/2017 21:37 (#6001187 - in reply to #6000837) Subject: RE: Converting from 2-6 volt to 1- 12 volt battery on JD 4630
In Von's third picture frame the engine oil cooler pipe base mounting rear 3/8 inch bolt, is the equivalent to grounding of the original set up at the oil filter mounting stud on the right hand side. Use a serrated style lock washer between the cable and the pipe base and your good to go.