RichFC 0 #1 Posted July 21, 2017 (edited) At idle or low RPMs it will charge but if i turn on the PTO or headlights it discharges. Also if I raise RPMs without turning anything on it does not charge. The battery is new. I just received this tractor it has been sitting in the woods for a few years. It starts right up and it has a Kawasaki FC540V engine. Tractor is a 257-H Since my original post . The charging system came to life on its own .It is now charging above 17 amps .I replaced the key switch ,removed cleaned the rectifier plug and base . cleaned the ground terminals . I am still trying to find out how many years this tractor sat out in the woods. When I have time I will test the rectifier with the chart Garry posted. Thank you everyone. I will post the results sometime next week. Edited July 22, 2017 by RichFC Share this post Link to post Share on other sites
pfrederi 17,147 #2 Posted July 21, 2017 What model tractor is this on... Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,496 #3 Posted July 21, 2017 Would have thought you have an exported model by the model numbers http://www.wheelhorseforum.com/files/file/1976-engine-kawasaki-fc290v-fc420v-fc540v-sm-492-4210pdf/ Toro Master PartsViewer Model Search Advanced Search Help Matches Found: 4 Model # Serial Range Year Product Name Links E2-17K501 None - None 1988 227-5 Tractor Assembly Drawings Product Details Attachments and Accessories E2-17K502 None - None 1989 227-5 Tractor Assembly Drawings Product Details Attachments and Accessories R2-17K501 None - None 1990 227-5 Tractor Assembly Drawings Product Details Attachments and Accessories R2-17K502 None - None 1990 227-5 Tractor Assembly Drawings Product Details Attachments and Accessories Search Criteria:Go Back Engine/Motor Model = FC540V-BS07 Share this post Link to post Share on other sites
N3PUY 1,031 #4 Posted July 21, 2017 1 hour ago, pfrederi said: What model tractor is this on... wouldn't that be a 257H tractor with a vertical shaft engine? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,496 #5 Posted July 21, 2017 Could be a 257-H if there is a typo somewhere. Listed as FB540V here Toro Master PartsViewer Model Search Advanced Search Help Matches Found: 2 Model # Serial Range Year Product Name Links 22-17KE01 None - None 1988 257-H Tractor Assembly Drawings Product Details Attachments and Accessories 22-17KE02 None - None 1989 257-H Tractor Assembly Drawings Product Details Attachments and Accessories Search Criteria:Go Back Model Number/Product Name = 257-h Share this post Link to post Share on other sites
N3PUY 1,031 #6 Posted July 21, 2017 I have a 257H, Model number is 2217KE01, Engine is a Kawasaki FC540V. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,496 #7 Posted July 22, 2017 Part 2 of this manual covers the charging system. Have never seen this before to diagnose the voltage regulator if it has 6 terminals. Garry 1 Share this post Link to post Share on other sites
N3PUY 1,031 #8 Posted July 22, 2017 That's a really interesting chart to diagnose a voltage regulator. Tells exactly what terminals to probe and what the meter should read. Share this post Link to post Share on other sites
Tuneup 1,416 #9 Posted July 23, 2017 I like the instruction - Do Not Use Megger. You just don't see that kind of stuff anymore. Heck, I haven't seen a megger since the mid 90s and I'm in the test equipment calibration business! Share this post Link to post Share on other sites