I've rebuilt those voltage regulators before in rare cases. Most of the time, they just need the contact points cleaned and re-soldered. Sometimes they do fail completely, and it's easier to replace them. Good work and the 149s are probably one of the best hyrdro cubs out there.
I cleaned both sets of contacts and tried adjusting on the bench with a power supply but they wouldn’t hold when set. A new correct regulator did the trick
Hey Ken Good informative video Bud. I really appreciate the electrical videos as I don’t know enough about them. As someone who doesn’t work on lawn tractors very often, what is the field terminal for? I’ve never heard of that term. Cheers
The Field Coil in the starter generator generates DC voltage to charge the battery. The regulator has two relays that allow a maximum amount of current and voltage to flow into the battery, cutting off the flow when it reaches a certain level and turns back on when it is low.
17 volts on a 12 volt battery is dangerously high!!! You should not see any higher than 14.4 volts while charging. Maybe that's how it's supposed to be on those older machines but I know for a fact that you will be boiling the electrolyte out of that battery if it's staying at 17 volts too long
The VR needs to warm up and stabilize. Initial voltage may be high, It shouldn't stay at that high voltage very long. The older VRs have points controlled through an electro magnet. Thus the warmup period.
Great video Ken! I just learned something again from you!! Thank you!!
I've rebuilt those voltage regulators before in rare cases. Most of the time, they just need the contact points cleaned and re-soldered. Sometimes they do fail completely, and it's easier to replace them. Good work and the 149s are probably one of the best hyrdro cubs out there.
The engine sounds and runs great. Thanks for all the fantastic troubleshooting information
Thanks for the information Kenny 👍
Thanks for watching
Good video ken . You got that cub cadet sorted out with the right voltage regulator
Ya it was frustrating when the customer kept buying the wrong regulators, the sellers on EBay swore they would work. Nope!
@@KensSmallEngineRepair yes it this case its like the belts for a mtd you gotta go oem pretty much
Runs nice. Sometimes you’ve just got to pay a lot to get results
The regulator cover can be removed. You can see if it has failed. Burnt point or coil wiring.
I cleaned both sets of contacts and tried adjusting on the bench with a power supply but they wouldn’t hold when set. A new correct regulator did the trick
17v is a little too much. You might have to polariz the voltage Regulator
Nice job on the engine 👍🏻
It calmed down to 14.8 once it warmed up!
OEM all the way 😀
Not OEM but made in the USA to the EXACT specifications of the original one!
😁
Hey Ken
Good informative video Bud. I really appreciate the electrical videos as I don’t know enough about them. As someone who doesn’t work on lawn tractors very often, what is the field terminal for? I’ve never heard of that term.
Cheers
The Field Coil in the starter generator generates DC voltage to charge the battery. The regulator has two relays that allow a maximum amount of current and voltage to flow into the battery, cutting off the flow when it reaches a certain level and turns back on when it is low.
Ok. I get it now. I was thinking the flow went out from the regulator to the field on the starter. It’s just the opposite. Thanks Ken
17 volts on a 12 volt battery is dangerously high!!! You should not see any higher than 14.4 volts while charging. Maybe that's how it's supposed to be on those older machines but I know for a fact that you will be boiling the electrolyte out of that battery if it's staying at 17 volts too long
I’ll keep an eye on it. Just went out there she’s at 14.8
The VR needs to warm up and stabilize. Initial voltage may be high, It shouldn't stay at that high voltage very long. The older VRs have points controlled through an electro magnet. Thus the warmup period.
Thanks Jim that’s what I figured. After Gary’s comment I went outside and tried it again and it was charging at around 14.8.