TC10284 113 #1 Posted March 7, 2022 (edited) I'm having trouble getting power to the hour meter and thusly, the voltmeter on a 312-8. I think this is a 1988 model. The model sticker is very faded, but I can barely make out enough numbers to do some searching on the files section here and determined it is 21-12K805 Here are the pics I took of the sticker: https://photos.app.goo.gl/qSDqeep6NmXTCgjG7 Mainly wanted input about the model number, but any input regarding the electrical issue would also be helpful. I wanted to get the correct diagram before I dug more into it. Fuses looked fine. Edited March 7, 2022 by TC10284 Share this post Link to post Share on other sites
953 nut 59,251 #2 Posted March 7, 2022 On the right side below the battery you will find a fuse holder, you may have a bad fuse or the fuse holder id corroded. 2 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,391 #3 Posted March 7, 2022 Your serial number appears to be 36731 and similar serials are for the 1989 tractor model 21-12K806. https://www.wheelhorseforum.com/search/?&q=21-12k806&type=downloads_file&page=1&search_and_or=or&sortby=relevancy 2 Share this post Link to post Share on other sites
TC10284 113 #4 Posted March 8, 2022 It may have been a corroded fuse holder. I replaced both fuses and the voltmeter started working. Hopefully it was this simple. 1 Share this post Link to post Share on other sites
