voltage regulator...
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=144986
Printed Date: 29 Aug 2025 at 8:14pm
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Topic: voltage regulator...
Posted By: shameless dude
Subject: voltage regulator...
Date Posted: 01 Dec 2017 at 12:02am
| on my 180D I think has shot manure, the alternator checks o-k, AGCO says they don't have any, found one at an auto parts store and it looks the same, but is about a 1/2 pound difference in weight, and of course it's made in china. does anyone have a part # for it? I forgot to get that when at AGCO. |
Replies:
Posted By: CrestonM
Date Posted: 01 Dec 2017 at 12:56am
| I can't help much, but good luck. Every time I hear "voltage regulator" I get a shudder... I've had nothing but trouble finding good ones for my tractors. |
Posted By: KJCHRIS
Date Posted: 01 Dec 2017 at 1:08am
|
Dale, think it should be either 70243986 / 72072955. Some parts counter books show 2 regulators for the Delco 10DN alternator, 1 for ammeter and 1 for idiot light setups. You need the ammeter 1 if they ask.. I've had good results with electrical parts from ASAP @ 1-877-530-4430. Their part number is 105289 price is $17.00. 2 - 3 business days for ship to your door. The 1 on my AC200 been on 8-9 years so it must be OK. Have not had any bad experiences with their parts. ------------- AC 200, CAH, AC185D bareback, AC 180D bareback, D17 III, WF. D17 Blackbar grill, NF. D15 SFW. Case 1175 CAH, Bobcat 543B, |
Posted By: Phil48ACWC
Date Posted: 01 Dec 2017 at 6:25am
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Get yourself a 10 SI Delco 3 wire alternator with a built in electronic solid state voltage regulator like this one https://www.dbelectrical.com/products/alternator-tractor-delco-10si-with-tach-john-deere-allis-massey.html?mrkgcl=1145&mrkgadid=3179676962&rkg_id=h-03354b6c5c788d75ac5a9016d58d72e1_t-1512130026&adpos=1o2&creative=196860178238&device=c&matchtype=&network=g&gclid=Cj0KCQiAmITRBRCSARIsAEOZmr7l4ryO3XcFCdg66svdEwTTftFkDs_KZmEG4L1qInWFEibFS4EUjzcaAviOEALw_wcB" rel="nofollow - https://www.dbelectrical.com/products/alternator-tractor-delco-10si-with-tach-john-deere-allis-massey.html?mrkgcl=1145&mrkgadid=3179676962&rkg_id=h-03354b6c5c788d75ac5a9016d58d72e1_t-1512130026&adpos=1o2&creative=196860178238&device=c&matchtype=&network=g&gclid=Cj0KCQiAmITRBRCSARIsAEOZmr7l4ryO3XcFCdg66svdEwTTftFkDs_KZmEG4L1qInWFEibFS4EUjzcaAviOEALw_wcB I converted my WC to 12V 20 years ago and used one of these alternators and never had any problems. I use my WC year round. Very very reliable. No more troublesome mechanical voltage regulators. Wire it like this https://www.google.com/search?q=delco+10si+alternator+wiring+diagram&rlz=1C1CHBF_enUS762US762&tbm=isch&source=iu&ictx=1&fir=h8k9egL3EIWpwM%253A%252CfTyreiEDf4qJzM%252C_&usg=__OUhjw_4g0YwnfO9XAdS3zvFY30g%3D&sa=X&ved=0ahUKEwjQh_OZ5ejXAhWDkeAKHcJbA8QQ9QEIODAA#imgrc=S1EBDJUrgkhcPM:" rel="nofollow - https://www.google.com/search?q=delco+10si+alternator+wiring+diagram&rlz=1C1CHBF_enUS762US762&tbm=isch&source=iu&ictx=1&fir=h8k9egL3EIWpwM%253A%252CfTyreiEDf4qJzM%252C_&usg=__OUhjw_4g0YwnfO9XAdS3zvFY30g%3D&sa=X&ved=0ahUKEwjQh_OZ5ejXAhWDkeAKHcJbA8QQ9QEIODAA#imgrc=S1EBDJUrgkhcPM: The diode is so the engine won't keep running after you turn off the ignition. Power to this terminal is required to excite the alternator to get it charging once you start the tractor. The diode can be eliminated with a momentary on switch (spring loaded to off). You'll need to hit the switch when you start the tractor to excite the alt and start it charging.
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Posted By: shameless dude
Date Posted: 01 Dec 2017 at 7:30am
| thanks guys! |
Posted By: wfmurray
Date Posted: 01 Dec 2017 at 7:42am
| Put alternator on my restored B and ran a wire to switch box and put a nor open switch in . Crank pull switch turn loose and its charging,cut motor off and no discharge. |
Posted By: lowell66dart
Date Posted: 01 Dec 2017 at 8:42am
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I have a NAPA one that I bought for my 175 which I am not going to use. I would let it go cheap. New in the box. I remember it being around $60? Let me know and I can send you some pics. ------------- AC 6080 (8030,7060,200,175,D-17HC, 6040,160,6140 all gone) Farmall 1066 & 656 Hi-Clear (for sale), White 2-62 High Clearance, JD 4255 Hi Clear. |
Posted By: DougS
Date Posted: 01 Dec 2017 at 9:15am
| A CS130 (not the D model) already has a resistor built into the “I” terminal. You shouldn’t need a resistor or diode or light. Just hook it directly to the ignition. |
Posted By: DMiller
Date Posted: 01 Dec 2017 at 9:22am
| Problem with a standard Delco is you lose the Tach for the tractor on the 180/185. |
Posted By: DougS
Date Posted: 01 Dec 2017 at 9:49am
Actually you don’t. Your tach may not read quite right if the Edit: Whoops. Alternator poles, not tach poles. |
DMiller wrote:Posted By: Joe(OH)
Date Posted: 01 Dec 2017 at 12:09pm
|
The auto parts store voltage regulator is probably the new electronic type while your old one is the mechanical with points type. I have had good luck with auto parts ones so far. ------------- Life is simpler when you plow around the stump. |
Posted By: Steve in NJ
Date Posted: 01 Dec 2017 at 5:39pm
|
When purchasing Voltage Regulators, get the number off the Alternator and then match the correct VR to the Alternator number. This way you know the VR is designed to work with what Alt you have. That's why a lot VR's fail. They're not mated to the Alt they need to team up with. The China thing doesn't help either. Make sure the VR is grounded properly to. Very important. Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: DougS
Date Posted: 01 Dec 2017 at 9:15pm
| There are some smart regulators out there that can be configured to fit any P-type alternatores. Most externally regulated alternatirs are this type. One this type of regulator you can configure the maximum field current; the charge voltage; the charge based on battery temperature and set it for two or three stage charging. Google “smart alternator regulator” for a look. There’s one out there for $149 I think. Xantrex is one name that comes to mind. |