I have an old L1500 that is having trouble keeping the battery charged. Had the alternator checked and it's working normally. The voltage regulator, though, is my problem. The business I took it to said if I could get the parts number off of it he would be able to repair it. The info on top of the regulator housing is mostly missing due to the fact that when I bought the tractor back in the mid 90's, prior to my purchase there had been a fire at the steering wheel/dash area and the housing of the regulator is charred. Does anyone that has a 70's - 80's L1500 have any information that you could pass on to me. I've tried to search for replacements, but all I find are 6 prong regulators, and mine is a 3 prong regulator. Thanks for any info.
Kubota L1500 Voltage Regulator help
- Thread starter DTHall
- Start date
GreensvilleJay
Well-known member
Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
picture would really help !
Typically ...3 prong will be 2 AC wires(blue) from 'alternator', 1 wire ( red ) to battery, and case MUST be grounded to -1ve of battery, and firmly mounted to metal , used as heatsink. 3 inline tabs, outer go to alternaor, center one is +12v to battery.
These 3 prong rectifier/regulators are 'variations of a theme' of the B&S patent in the '70s. Simple and reliable, just be SURE to fuse for 15 amps. Guts are 2 diodes, 2 resistors, an SCR and a zener. Used to depot and rebuild them for fun 3 decades ago adding a 'charging LED' to them.
Typically ...3 prong will be 2 AC wires(blue) from 'alternator', 1 wire ( red ) to battery, and case MUST be grounded to -1ve of battery, and firmly mounted to metal , used as heatsink. 3 inline tabs, outer go to alternaor, center one is +12v to battery.
These 3 prong rectifier/regulators are 'variations of a theme' of the B&S patent in the '70s. Simple and reliable, just be SURE to fuse for 15 amps. Guts are 2 diodes, 2 resistors, an SCR and a zener. Used to depot and rebuild them for fun 3 decades ago adding a 'charging LED' to them.
GreensvilleJay
Well-known member
Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
for giggles went to amazon...
does it look like this ? black wire is ground
There is NO WAY I'd pay $304 for it !!!!
another style , $40 US$.... reasonable....
Google 'kubota L1500 regulator' for LOTS of options !!!
does it look like this ? black wire is ground
There is NO WAY I'd pay $304 for it !!!!
another style , $40 US$.... reasonable....
Google 'kubota L1500 regulator' for LOTS of options !!!
The part number for the L1500 Regulator is 15221-6460-1,
which is no help other than to confirm that the L175 Regulator is the same.
That part number is 15221-64600 and is available from Messicks, Coleman and
probably your local dealer as well.
FYI, my L1500 has a six (6) wire regulator.
which is no help other than to confirm that the L175 Regulator is the same.
That part number is 15221-64600 and is available from Messicks, Coleman and
probably your local dealer as well.
FYI, my L1500 has a six (6) wire regulator.
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GreensvilleJay
Well-known member
Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
but his last line is NOT 6 prong, needs 3 prong regulator.
If the OEM was 6, then someone has modified the wiring for 3......
this is where a picture or two would help !
If the OEM was 6, then someone has modified the wiring for 3......
this is where a picture or two would help !
OOOPS, yeah I missed that part, that's what working 15 hour days will get you.
GreensvilleJay
Well-known member
Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,