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I have a L-185 tractor that I purchased recently used, and when I checked the gear box opening, I saw the fluid foaming. I don't know what is in the bos, or when it was last changed. What do you-all recommend for the fluid? The manual says 80/90 gear oil.

What it turned out to be was a faulty slip connector on the field winding cable between the alternator and the regulator. When I would circuit check it, it would ring out fine (because I was pushing the probe onto the slip connector), but when it was installed, it wasn't making contact. I...

Dave, You are correct, it is very frustrating. What I did today was to go back to square one. I cleaned all of the slip connections with steel wool. I found a 10 gauge wire coming from the fuse block that looked like it was nicked. I had seen it before, but it measured OK, so I let it go. This...

Well, I replace all three of the wires from the alternator to the regulator, the field (F), the neutral (N) and the earth (E) wires, using 16 gauge wire. I fired the tractor up, and still no change. I unmounted the regulator, and open it up and started the tractor, and it appears that the...

Well, I checked the voltages at the alternator and they are (at 2K RPM) E=0 VDC 0.0 ADC F=17.5 VDC 0.1 ADC N=9.2 VDC 4.2 ADC B=17.5 VDC 40.3 ADC Current at the positive cable: AC=0.1 DC=40.3 Voltage at the Positive terminal: 17.5 As per Dave's suggestion, I substituted a known...

Thanks, Dave. This explains a lot. I have a new regulator installed. I thought that this was the problem, based on my troubleshooting. I am going to use my DC clamp-on meter to measure the charging current, and I will let you know.

Thanks for the manual. Even though I only got part of it, I got enough info, I think. What I have done is to add a ground directly to the regulator from the alternator, as well as from the alternator directly to chassis ground. No change. I checked the continuity of the wiring from the...

I borrowed a calibrated meter from where I work, so it isn't a problem with my instrumentation. I am an Electronic Technician by trade (40+ years), so I know how to handle metering. I do not have any wiring diagram or schematic for the system, as I just got this tractor rather recently. I am...

I have a L185 and the charge light is on fairly dim at idle, and it gets brighter the higher the RPMs are. At idle, I am reading 15 volts DC, and at full throttle, I am reading 18.5 volts. At full throttle, the light is at its brightest, but not as bright as it could be like when the engine is...