Moparfanforever 886 #1 Posted January 4, 2022 (edited) I never thought about it before as I just hooked the cables up the way they came off , but does it matter what side the cable from the battery and to the starter goes on a solenoid?? Really curious. Next..... I am working on a GT 1848 and the wiring was hacked up. I rewired it from a diagram in the manual section with a new switch and plug to the switch. I did not hook any safety switches back or the ammeter. I do have the mag switch and it has a separate ground tab. There is a fuse between the key switch and the solenoid (+ battery side ) and it keeps blowing the 15 Amp fuse ?? It went to the ammeter which I didn't use. I bypassed the fuse and wired the wires together and the tractor will start , run , nothing melted?? Does the fuse just protect the ammeter?? Edited January 4, 2022 by Moparfanforever Share this post Link to post Share on other sites
Achto 29,229 #2 Posted January 4, 2022 (edited) 44 minutes ago, Moparfanforever said: does it matter what side the cable from the battery and to the starter goes on a solenoid? No, it does not matter. The two large terminals are the switch part. They are open normally and close when you energize the coil, (send power to the small terminal / turn the key to the start position) Not sure what's going on with the fuse. Edited January 4, 2022 by Achto 2 Share this post Link to post Share on other sites
Moparfanforever 886 #3 Posted January 4, 2022 1 hour ago, Achto said: No, it does not matter. The two large terminals are the switch part. They are open normally and close when you energize the coil, (send power to the small terminal / turn the key to the start position) Not sure what's going on with the fuse. I thought maybe it didn't matter, but I didn't want to melt something. Not sure about the fuse either, not even sure the wire even needs to be there. 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,390 #4 Posted January 4, 2022 A fuse should be in place as it protects the wiring and components beyond the fuse. Is the fuse blowing or is it melting from an overheat condition? The fuse requires a tight mechanical connection to eliminate any resistance which causes heat. A 30 amp fuse holder has heavier springs and contacts but the fuse used in it can be smaller. 2 Share this post Link to post Share on other sites
Moparfanforever 886 #5 Posted January 4, 2022 16 minutes ago, gwest_ca said: A fuse should be in place as it protects the wiring and components beyond the fuse. Is the fuse blowing or is it melting from an overheat condition? The fuse requires a tight mechanical connection to eliminate any resistance which causes heat. A 30 amp fuse holder has heavier springs and contacts but the fuse used in it can be smaller. The fuse is blowing when I turn the key on. At first I was using the factory fuse holder and then cut that out and put in an inline fuse holder rated at 20 amps with a 15 Amp fuse. The fuse goes from solenoid to ammeter, which I no longer have, and then to the switch. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,390 #6 Posted January 4, 2022 Sounds like the ammeter has a short in it. The fuse protects everything after the fuse. Share this post Link to post Share on other sites
Moparfanforever 886 #7 Posted January 4, 2022 11 minutes ago, gwest_ca said: Sounds like the ammeter has a short in it. The fuse protects everything after the fuse. I didn't replace the ammeter when I rewired the tractor . Share this post Link to post Share on other sites
pacer 3,176 #8 Posted January 5, 2022 Lets verify this --- The fuse is blowing when you simply turn the sw ON - and before turned to start position? If so, then you will have to have a short in that wire somewhere. If it blows in START position then a 15 amp fuse just may not be enough, engaging the starter takes a pretty heavy burst of amps ..... Hmmm, let us know what you find. Share this post Link to post Share on other sites
oldlineman 1,513 #9 Posted January 5, 2022 Ya, sounds like a no load short in the wiring. Bob Share this post Link to post Share on other sites
Moparfanforever 886 #10 Posted January 5, 2022 1 hour ago, pacer said: Lets verify this --- The fuse is blowing when you simply turn the sw ON - and before turned to start position? If so, then you will have to have a short in that wire somewhere. If it blows in START position then a 15 amp fuse just may not be enough, engaging the starter takes a pretty heavy burst of amps ..... Hmmm, let us know what you find. Yes,it blows when I turn it to ON not start. Not quite sure what is happening since I eliminated the ammeter, the wire just runs from the solenoid (+ battery side) to the key switch, nothing in between. No start after the fuse blows. I took the fuse out and hooked the wires together and the tractor starts and nothing melted or gets hot ?? Beats me ??? Share this post Link to post Share on other sites
pfrederi 18,558 #11 Posted January 5, 2022 We don't need no stinking fuses...WH built tractors for many years with out fuses.... Share this post Link to post Share on other sites
squonk 43,361 #12 Posted January 5, 2022 A fuse from the switch to the solenoid would only have the solenoid coil as the draw. The starter amps would be carried by the batterycable/ starter cable and solenoid contacts. 15 amps is a lot for just that coil. Might be a sign that the solenoid is nearing it's end of life. 1 Share this post Link to post Share on other sites
pacer 3,176 #13 Posted January 5, 2022 1 hour ago, squonk said: solenoid would only have the solenoid coil as the draw. Yes, if I'd just thought a moment before I typed..... I would've realized that Share this post Link to post Share on other sites
