That's what I figured too. I thought I'd check it out on JDPC and they offered the same 3 options as the Briggs distributor IPL. That's why I looked at the power portal. It could be wrong. The OP may not even need to get that far though if it is charging, unless the 3 wire regulator isn't shutting down like they sometimes do.
Electrical charging pto issue JD 145 automatic
- Thread starter jrv8984
- Start date
- Views: 9125
RandyT
Elite Member
Briggs never gets exact on their charging systems. They will show all the system parts used on that series, and you have to figure out which system you have. Just like a few years ago when they had the opposed twins and some of the carbs had a 3 bolt fuel pump and others had the 4. The IPL would show both systems and you had to physically look at which one it was.
Also the normal amp draw for an electric clutch is 2-4 amps.
I too would think it would have the 15 AMP charging system due to the clutch. Briggs can be messy to find charge parts and harnesses for sure. Though sometimes the OEM of the chassis is good enough to list the proper charging parts in their IPL. Just not in this case. Sears used to be pretty good at that in referencing their IPL BTW. On this engine, the build sheet on the power portal shows otherwise. It seems likely that the PTO is on it's way out and is way over budget on AMPS anyways. It would be interesting to know for sure. That's why we make the big bucks...
Alternator Specifications
Alternator 592831
Type Dual Circuit
Testing RPM 3600
AC Volts 14vac
DC Amps 3adc, 5adc thru reg
Alternator Specifications
Alternator 592831
Type Dual Circuit
Testing RPM 3600
AC Volts 14vac
DC Amps 3adc, 5adc thru reg
RandyT
Elite Member
Tomplum Have you every seen a 3-5 charging system on a briggs with a regulator. The IPL doesn't show a regulator for that system. I could believe the 5-9 system with the little box regulator or the 10-16 system with regulator, but not the 3-5. The service manual show testing for a 3 amp DC unreulated/5 amp AC unregulated for lighting with a single two pole white plug. the 5-9 system with a single wire going to a regulator, and the 10-16 system with two wires ending with a single two pole plug going to the regulator.
I haven't checked but is JD using a separate regulator on the 5 amp AC side to regulate/rectify
I haven't checked but is JD using a separate regulator on the 5 amp AC side to regulate/rectify
RandyT
Elite Member
So let me make sure you I have this correct. there is two black wires coming out from under the flywheel that connects to a yellow connector with two yellow wires going into the regulator, and then a single red lead with a red barrel connector correct. If so then connect a meter set for DC volts to the mower side of the barrel connector and check for battery voltage. the key may need to be turned on for this to work. If that works then disconnect the yellow connector and start the engine while it is running at full throttle, set your meter to read AC volts and connect each lead of the meter to each of the two black wires from the stator. this test should read at least 28 or more Volts AC. If both test good then most likely the regulator/rectifier is bad, if no battery voltage to regulagtor than need to diagnose why, and if the stator is reading less than 28 volts then need to remove the flywheel to replace the stator.
LittleBill21
Elite Member
12.18 at full throttle and no pto? yea your not charging.
RandyT
Elite Member
394890 sub to 845904 Could be a regulator grounding issue but that is rare since it is mounted to the metal shroud of the engine. Looks like you have the 10 amp charging system on that engine. 29 volts AC should give you about 14.5 at the battery if everything is working correctly.
