Not Charging

[bmaverick]

Recalling back and checking into my Chrg. light problem there was several ways to setup these Yanmars. The Org. YM series,Rice patty tractors was hard on the Elec. Sys.. When digging in deep of my dash and Fuse panel I found out this to be true. Both VR. Old Mech. style still up in the Dash and the New SS attached around the Stering column. Found the bad connecton and then curiousity had me check the old one. Works fine!! So now I have both and then seeing my Alt. is actually 12V 35Amp. Which is Huge for my needs. No wonder My old battery lasted so long. Only 550cca. New 700cca now. Cold start is Minimal for the oil light to come on. I was actually shocked looking at the parts book. My Alt. is AL-1235 35Amp. and seen the next common Alt. is a AL-1215. It was much smaller at only 15Amp. and on the 2020 that was just mentioned is listed for it. That much smaller seemed odd.

Did a look up on the AL-1235. 12V 35A

A Yanmar Marine distributor has these too.

Alternator for Yanmar Marine

Used on 1GM, 1GM10, 2GM, 2GMF, 2QM15, 2QM20Y, 3GM, 3GMF,

12 Volt 35 AMP, without 2 pin regulator connector. (RM0060 with Connector)

Replaces Yanmar: 128170-77200, 128170-77201, 128170-77202

Replaces Hitachi: LR135-74, LR135-74B

RM0084

Some of these were also Denso back in the day. Long before American car companies dual sourced parts, Japan had done that decades earlier.

Iseki Tractor 3AF1BL,TE3210,TI1900,TL2100,TL2300,TL2500,TL2700,TU1700, TU1900,TU2100 12V/35A​

Replacing:​

Hitachi LR135-95B LR135-95 LR135-91 LR135-86F LR135-86C LR135-86B LR135-86 LR135-74B LR135-74​

Iseki 6581-200-349 6581-200-338​

Isuzu 8944237560 8941717780 5812003411 5812003381 5812003380 5812003281 5001810100​

Massey Ferguson 3282883M91​

Mazda H612-18-300 GE01-18-300A GE01-18-300 F851-18-300 D501-18-300 D401-18-300A D401-18-300 4828-18-300​

Mitsubishi A1T33277 A1T31699 A1T31685 A1T31377 A1T31374 A1T25097 A1T25087 A1T25083 A1T25077 A1T23377​

Nissan 34468-28200 34468-18200 23100-91109​

Yanmar 128270-77201 128270-77200 128171-77200 124080-77201 121400-77201​

Servicing: Mazda​

B+ M5, Grooves 1, Pulley P, Fan EF A: 41.85 B: 13.50 C: 81.65 mm​

MUSTANG
SKID STEER LOADERS
920 96-89 Yanmar 3TN72 Dsl Hitachi System HI 35 12 LR135-91 AHI0097
930 89-88 Yanmar 3TN82E Dsl Hitachi System HI 35 12 LR135-91 AHI0097
930A 96-89 Yanmar 3TN82E Dsl Hitachi System HI 35 12 LR135-91 AHI0097
940 96-88 Yanmar 4TN82E Dsl Hitachi System HI 35 12 LR135-91 AHI0097

YANMAR
ENGINES
1GM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060
2GM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060
2T72HL 92-84 All Hitachi System HI 35 12 LR135-91 AHI0097
3GM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060
3HM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060

 

[careyo63]

Did a look up on the AL-1235. 12V 35A

A Yanmar Marine distributor has these too.

Alternator for Yanmar Marine

Used on 1GM, 1GM10, 2GM, 2GMF, 2QM15, 2QM20Y, 3GM, 3GMF,

12 Volt 35 AMP, without 2 pin regulator connector. (RM0060 with Connector)

Replaces Yanmar: 128170-77200, 128170-77201, 128170-77202

Replaces Hitachi: LR135-74, LR135-74B

RM0084

Some of these were also Denso back in the day. Long before American car companies dual sourced parts, Japan had done that decades earlier.

View attachment 715716

Iseki Tractor 3AF1BL,TE3210,TI1900,TL2100,TL2300,TL2500,TL2700,TU1700, TU1900,TU2100 12V/35A​

Replacing:​

Hitachi LR135-95B LR135-95 LR135-91 LR135-86F LR135-86C LR135-86B LR135-86 LR135-74B LR135-74​

Iseki 6581-200-349 6581-200-338​

Isuzu 8944237560 8941717780 5812003411 5812003381 5812003380 5812003281 5001810100​

Massey Ferguson 3282883M91​

Mazda H612-18-300 GE01-18-300A GE01-18-300 F851-18-300 D501-18-300 D401-18-300A D401-18-300 4828-18-300​

Mitsubishi A1T33277 A1T31699 A1T31685 A1T31377 A1T31374 A1T25097 A1T25087 A1T25083 A1T25077 A1T23377​

Nissan 34468-28200 34468-18200 23100-91109​

Yanmar 128270-77201 128270-77200 128171-77200 124080-77201 121400-77201​

Servicing: Mazda​

B+ M5, Grooves 1, Pulley P, Fan EF A: 41.85 B: 13.50 C: 81.65 mm​

MUSTANG
SKID STEER LOADERS
920 96-89 Yanmar 3TN72 Dsl Hitachi System HI 35 12 LR135-91 AHI0097
930 89-88 Yanmar 3TN82E Dsl Hitachi System HI 35 12 LR135-91 AHI0097
930A 96-89 Yanmar 3TN82E Dsl Hitachi System HI 35 12 LR135-91 AHI0097
940 96-88 Yanmar 4TN82E Dsl Hitachi System HI 35 12 LR135-91 AHI0097

YANMAR
ENGINES
1GM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060
2GM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060
2T72HL 92-84 All Hitachi System HI 35 12 LR135-91 AHI0097
3GM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060
3HM 84-82 All Hitachi System HI 35 12 LR135-105 AHI0060

AL-1235 . Fredricks #'s What I noticed was the 2210 and that reminded me that it was the 2020 that just came up and it was odd for such a smaller Alt.. You have a search down pat! I only have Two things to worry about. F-250 and the Yanmar anymore thank goodness. I'm sure someone may need atleast 1 of those #. The Mazda interesting reminded me of a RX-7 I owned 1st.Yr. Factory Carb. Gave that car to the wifey. She scooted around town for yrs. in it. 2 seater and kids she finally had to give it up. The Rotary would turn some RPM's no doubt.. Quick!!

 

[Williy]

But the price is over $200 when the auto
parts store could be less than $50

willy

 

[bmaverick]

But the price is over $200 when the auto
parts store could be less than $50

willy

Wasn't too worried about prices. I wanted the cross reference numbers. Then go to the auto store.

 

[Scotty Dive]

For some crazy reason, the damn thing started charging again. The only thing that happened was I tried to get some readings from the two outputs. I did take a probe and accidently touched both and got a small spark and after that it started charging again. will call Hoye and talk to them about the proper measurements it should be putting out. BTW, the proper part number for my application in a YM2020 is a 121450-77200. There no way an alternator from a datsun will fit in there. This dynamo is tiny

 

[Williy]

If you ever need one this guy sells for $69.26 with
free shipping Alternator for Yanmar PMA 12 Volt 15 Amp Permanen Magnet 121450-77200; APM0013

It looks rather small

willy

 

[rScotty]

I believe they are different regulators. The 186 has a dynamo.

Old tractors had DC generators - the kinds with a commutator & brushes.
Most new engines since about the mid 1970s use an alternator of one sort or another.
What are you calling a dynamo?

 

[bmaverick]

Soooooo, with this DYNAMO can the Yanmars UPGRADE from the 15A to the 20A version ???

John Deere 990 Alternator - MIA10338

John Deere 990 Alternator for sale, MIA10338. This permanent magnet alternator (Dynamo) is an externally regulated 12V, 20 Amp, Kuksan Denki Type. It is used on John Deere 670, 770, 790, 870, 970, 990, 1070 and 4610 Compact Tractors. It also has applications in John Deere lawn and garden...

www.yesterdaystractors.com

Description: This permanent magnet alternator (Dynamo) is an externally regulated 12V, 20 Amp, Kuksan Denki Type. It is used on John Deere 670, 770, 790, 870, 970, 990, 1070 and 4610 Compact Tractors. It also has applications in John Deere lawn and garden products. It replaces original part numbers; SE501822, SE501843, AM877557, AM876055, AM877050, AM879144, MIA10338
Alternator Part Number MIA10338

The question is the cross reference and mounting holes. hmmm

A whooooping 5 more AMPS !!!

 

[bmaverick]

Found these Deere p/n too for a 12VDC 35Amp version !

 

[ponytug]

Congratulations on getting it running!

If it is a dynamo with brushes, shorting the wires may have "arc cleaned" the brushes/commutators. I don't know this model, but if it is serviceable, I would consider lightly cleaning the brushes and commutators. Fine emery paper is all that you need.

FWIW: A second thought. I would also consider sanding the mounting holes / bracket to make sure that you are getting a good ground. Ditto the negative cable on the battery and the voltage regulator mounting/ground. I have found lots of electrical gremlins that were traced back to poor grounds due to rust, corrosion, and loose screws. For the major ones; the mounting bracket, battery ground, I put a thin film of copper dielectric grease on. (Fix once, and forget school of mechanics)

All the best,

Peter