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D17 seriesIV alternator

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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=174033
Printed Date: 06 Jan 2025 at 3:35pm
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Topic: D17 seriesIV alternator
Posted By: Lynn Marshall
Subject: D17 seriesIV alternator
Date Posted: 02 Sep 2020 at 10:09am
What are you guys using to convert a generator to an alternator on a series IV? I don't see how the 10si delco that I got is going to fit in there without major butchering. I put a delco on an older D17 not long ago and it wasn't that big of a deal.



Replies:
Posted By: T-bone_indy
Date Posted: 02 Sep 2020 at 10:23am
use the hand crank for a backup that's if it has one

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D19-AC916-Kubota B2150- Wheel Horse charger 12


Posted By: DrAllis
Date Posted: 02 Sep 2020 at 10:39am
I used One-Seventy lower brackets and cut a notch in the top bracket to clear the power steering pump bracket. Use the generator pulley?? Maybe not. Leave the cooling fan off of the Delcotron so the PS belt can pass thru that area. Never had one run hot without the fan, as the radiator fan moves plenty of air.


Posted By: HD6GTOM
Date Posted: 02 Sep 2020 at 7:15pm
Or have your Genny converted to an alternator. There was a guy advertising in some of the antique tractor mags doing this.


Posted By: DSeries4
Date Posted: 02 Sep 2020 at 8:18pm
Or just have your generator rebuilt.  It has worked for the last 60 years.


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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080


Posted By: DrAllis
Date Posted: 02 Sep 2020 at 8:26pm
I converted several over many years ago to switch them to a negative ground and to have enough amperage to operate an electric air planter and the lights for night running. It was out of need.


Posted By: jaybmiller
Date Posted: 03 Sep 2020 at 5:44am
I use the CS130 series alternators on my D14s, used the genny pulley(burbgun removes it from genny). All had different 'configuration' of mounting brackets,cheap am I, though a 'real' bracket is available.
The CS130 is a smaller unit so no tin 'rework' necessary. If you get one from scrapyard($10 ?) be SURE to get the connector and 6-8" of wiring !

gennys take all day to recharge a battery, alts do it fast.
Jay


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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water


Posted By: Stan R
Date Posted: 03 Sep 2020 at 7:37am
I converted to an alternator a few years ago on our D17 IV and just took some flat bar stock, maybe 1 1/2" long and drilled two holes in it. One side was bolted to the existing generator bracket, the other side to the alternator.

This raised the alternator up about 1". With the raising of the alternator and larger diameter of the alternator (vs the generator), the bottom power steering hose interfered with the alternator, so I took some brake lining (same size as the hose) to tweak the power steering hose routing. I could of changed the hose ends, etc. but opted to go with the $5 option....

The alternator had to be raised, as sitting "low", the alternator hit the side frame rails and inner parts of the area behind the alternator.

No sheet metal changes and the alternator is still "inbound" of the engine, similarly to what the generator was.


Posted By: Steve in NJ
Date Posted: 03 Sep 2020 at 10:41am
As Jay mentioned, the "CS" series pint size Alternators work quite well in tight spots, or with engines that have a few more accessories up front hanging off the engine. Most "CS" series Alternators output are in the 90 amp area which is overkill on a Tractor, but its capible of handling any extra loads that may be put on the system on occasions such as sprayers etc. when needed. (Doesn't mean the Alternator is going to constantly put out 90 amps, its just going to supply whats needed for the system) Some of your Denso Alternators work well in tight spots to. Because these Alternators are metric also, the lower anchor bolt if using a 3/8" bolt will be a little loose in the anchor hole. It will tighten up after all hardware is tightened including your adjusting top bracket.

One thing to be aware of when using a "CS" series Alternator, is there are two different CS series Alternators. There's the CS130 and the CS130D. These are the smaller case versions of the CS series. The CS144 is a bit larger. The plugs are different from the first Generation CS and the second. They both will hook up the same.  The second Gen CS came out in the late 90's.  Also, there is a couple different ways that you can hook up the CS series Alts.  Using the "L" terminal on the Alternator with a warning light wired into the system, (for resistance and a warning system) or using a resistor in line to compensate for no warning light.  Its not a good idea to run a full 12V's to the "L" terminal on the CS Alternators. You could take out the unit. I always prefer the warning light on the dash method, as the warning light is an attention getting signal of a problem. Such as a the belt coming off or a non charge issue. In my "D" Tractor retrofit kits I build, I use a small bulb pilot light for a dash lamp. The warning light I use has a 1895 bulb in it. You can also use a 194 bulb or a 57 bulb, or any gauge kinda bulb. This will get placed between the ignition switch and the "L" terminal of the Alt.  The bulb in the warning light will conduct a very small amount of current from the ignition switch to the "L" terminal on the Alt. This very small amount of current from the warning light bulb will turn on the electronic VR inside the Alt and start the charging process once you fire the engine.  Once the Alternator starts putting out 14V's, back to the warning lamp, and the ignition switch sends 14V's to the other side of the lamp, the lamp goes out with an equal amount of voltage on both sides of it.  Anything that may stop the Alt from putting output current out (like the fan belt poppin' off) will cause the "L" terminal to ground the warning light. When the Ignition switch is sending 12V's to one side of the lamp, and the Alternator is supplying a ground on the other side of the warning lamp, "Bingo" the light comes on telling you Houston, we have a probem. That's why I prefer the warning light system the best......  HTH   Sorry for the long post.
Steve@B&B 


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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: Lynn Marshall
Date Posted: 13 Sep 2020 at 8:07pm
I ended up using a small Hitachi 90 amp alternator. It fits really well and the wiring was easy. Bracketing was the biggest headache.


Posted By: Charlie175
Date Posted: 14 Sep 2020 at 5:53am
I also used a small Alternator on mine (SII), they are reliable and pretty cheap at around $70



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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD



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