Thanks Kevin,
I bought my first 455 for $671. It had sat outside for a couple years. I had to clean EVERY electrical connection on the tractor. SO, yes I cleaned the battery cables at both ends. The tractor had a new battery and was load tested. I checked my second 455 after I bought it and discovered the same problem.
I own a 322 and 332 GT with Yanmar engines and the same alternator as the 455's. These models had a problem with the batteries being overcharged. I isolated the problem to be that there was a voltage drop on the sensing lead (Green Wire) to the VR. I added a relay to connect the VR sensing lead directly to the battery and the problem was eliminated. Later I discovered that this was also John Deeres's solution.
I originally thought that the 455's problem was the sensing lead. After testing the charging circuit, I discovered that was not the problem. The 322 and 332 would boil the battery, but the 455's do not seem to be as bad. I have just ran them and they seem to be O.K. Looks like a winter project to attempt to resolve the issue.
GotDeeres
I bought my first 455 for $671. It had sat outside for a couple years. I had to clean EVERY electrical connection on the tractor. SO, yes I cleaned the battery cables at both ends. The tractor had a new battery and was load tested. I checked my second 455 after I bought it and discovered the same problem.
I own a 322 and 332 GT with Yanmar engines and the same alternator as the 455's. These models had a problem with the batteries being overcharged. I isolated the problem to be that there was a voltage drop on the sensing lead (Green Wire) to the VR. I added a relay to connect the VR sensing lead directly to the battery and the problem was eliminated. Later I discovered that this was also John Deeres's solution.
I originally thought that the 455's problem was the sensing lead. After testing the charging circuit, I discovered that was not the problem. The 322 and 332 would boil the battery, but the 455's do not seem to be as bad. I have just ran them and they seem to be O.K. Looks like a winter project to attempt to resolve the issue.
GotDeeres
