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Allis Chalmers Discussion Forum
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New to AC

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RobJJ

04-01-2007 22:43:07




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New to AC (just bought a WD45)...well, new to tractors in general. Never owned one, never driven one, just always liked them, and since it is a mechanical thing, had to have one. It will be a working tractor one of these days. A couple of questions...I'm sure more will follow.

What are dos/don'ts about using the hand crank. Good idea/bad idea. I've heard, that with cars, that how you do it is everything. Do it wrong, you can get hurt...do it right, just good exercise. Is this the same for tractors?

I know a lot of guys with 6-volt cars, switch to 8 volt batteries. I've heard this is not too big a differnce to create problems, such as bulbs burning out from getting too hot. Is this the same with tractors? The one I bought, needs a new battery/perhaps starter, or perhaps just some resetting the grounds. It pull starts very nicely, but either the battery is dead, or the starter, or ??? I figure if I have to get a new battery, before I do, thought I'd get ideas as to if the 8-volt substitution is/isn't a good idea.

The hydraulics work ok, but there is a leak somewere as the bar will slowly drop under weight. Where might the problem be? Is whatever might be the problem, repairable/rebuildable?

What is the availablility of parts (new, used, repops) for the WD-45s? Only thing I noticed missing, is the battery box (tray is there), some type of protection to prevent rain from entering the exhaust stack.

What is the purpose of the pulley on the right side (doesn't seem to be a driven pulley, but rather an idler pulley...what would it have been used for.

Ok, that's enough for now...donchathink.
Thanks,

Rob

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Steve in NJ

04-04-2007 04:26:07




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
Rob,
If you need any info on 6V or 12V conversions, give us a call. Be glad to talk to you and tell you the pro's and con's of the two systems. We design both systems for AC machines. Be happy to answer any questions you have and direct you the best way for your particular application...
Steve@B&B (973) 632-5596



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Dave Anderson

04-02-2007 17:18:22




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
Re: 8v battery. Its possible, but expensive. Cheaper in the long run to save your original generator, and convert to a 1 wire gm alternator. Don't have to change starter, you can run the 6v coil till it burns out, or change to internally resisted coil. Reverse the wires on the coil to keep the points from wearing fast. Lights need to be changed to 12v. If you elect to go to 8v you will need to add a resister to the lighting circuit to keep bulbs from burning. If you go to TSC you might find a 8v battery, or you will learn what TSC stands for (tough s**t, charlie!)

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RobJJ

04-02-2007 18:36:34




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 Re: New to AC in reply to Dave Anderson, 04-02-2007 17:18:22  
Ok, if I go with the one wire GM alternator, I assume that will be going the 12-volt conversion route. Is there a site that explains the conversion process and shows exactly what alternator (enough info to know specifically what to buy) to get, how to modify the wiring? What gauges need to be changed, etc. I"m pretty good with mechanical stuff, but electrical is my downfall...I can follow directions and do the work...but I don"t understand how electricity works other than the basics.

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old

04-02-2007 18:48:09




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 Re: New to AC in reply to RobJJ, 04-02-2007 18:36:34  
While a 1 wire alternator may work its not the bset way to go becuase you have to rev. the engine up real high to start it to chargeing. Best way to switch to 12 volts is a 3 wire delco 10SI alternator I wire them up all the time and can almost do it in my sleep. Look down in the ford 9N,2N, 8N forum and search the arcives for a post by Bob he posts a good picture of how to wire one up. If you don't find it drop me an e-mail and I'll explain how to do it. Its is real simple to do but take space to explain it

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RobJJ

04-03-2007 18:37:28




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 Re: New to AC in reply to old, 04-02-2007 18:48:09  
Old...here is what I found (see link at the bottom). Is this what you had in mind, and does it apply to the AC models, or do I need to make some "adjustments"? What is the purpose of the diode/marker lamp? And where do you find the diode that this mentions? Radio Shack or an auto parts store? And same for the "Dell's trick current limiting resistor. Where do you find these?

Is this what is referred to as a 3-wire alternator? What about the 12-volt coil...are all 12-volt coils pretty much the same, or do I need to get a specific one? Same for the alternator...is there a specific part number that is correct for the WD45, ie. that won't require different pulleys, or special brackets, etc.

Finally, now that I got the tractor home today, I've had a chance to look it over better. I found the serial number and it is a 1953 model. 146497. I'd like to attach a picture of the 3 point hitch to find out what anyone can tell me about it...is it original, better than original, pros/cons, etc. It appears you can add photos, but can someone tell me briefly how to do that. Thanks to all who've replied. I'm really stoked about having the tractor home...now ready to git 'r done!! I see that I can provide a link URL to a picture...but what about actually inserting a picture? Thanks to all,

Rob
http://www.ytmag.com/cgi-bin/viewit.cgi?bd=nboard&th=554728

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old

04-03-2007 19:09:58




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 Re: New to AC in reply to RobJJ, 04-03-2007 18:37:28  
I forgot to tell you in my e-mail that the alternator you want would be for say a 1980 Chev plain jane pick up truck. Makeing the mount set up is easy you just need a long bolt so it will goes through both holes on the genny mount and you place the alternator in front of the genny mount. Not all that hard to do I could do it in less then and hour and thats doing the mount up and the wireing, but I have done a lt of the 12 volt convertions over the years

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terry palmer

04-02-2007 14:10:39




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
Changed my WD45 to a 12 volt sys. When I picked up the alternator, they had a voltage reduser 12 down to 6. That way I kept every thing else 6 and I could run a electric to hydrolic snow plow on the front. All told about $100 to convert.



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RobJJ

04-02-2007 14:56:13




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 Re: New to AC in reply to terry palmer, 04-02-2007 14:10:39  
I guess I"m confused about the Terry"s reply.

He says "Changed my WD45 to a 12 volt sys. When I picked up the alternator, they had a voltage reduser 12 down to 6. That way I kept every thing else 6 and I could run a electric to hydrolic snow plow on the front. All told about $100 to convert".

I can understand putting a voltage drop to the coil, but if all output from the alternator is reduced, won"t that create problems with recharging the 12 volt battery? Other than the lights and coil, what else is affected during a 12-volt conversion? I know the starter will LOVE the 12 volts and just spin better/faster, but what about other items...what else besides the generator being swapped out for a 12 volt alternator is at play? Is the conversion covered in some detail somewhere someone can point me? Thanks,

Rob

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JMS/MN

04-02-2007 08:42:59




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
One caution not emphasized by others is in regard to engaging the belt pulley. Simple rule is engage/disengage it only with the engine stopped. The internal gear you connect it to is always turning when the engine is running- unless you lock the foot clutch forward. Other reason for the foot clutch lock is to lock the clutch forward while crank starting the tractor in cold weather. Fewer parts will be turning in cold oil, causing less drag. While seated and using the starter, always push in the foot clutch---less drag on the starter and compensates for a transmission being left in gear. Serial number (on the left side of the differential) above 146606 is a WD45. Regarding lift arm dropping under weight- with the tractor not running, that is not unusual, but it should hold the arms up with the engine running and the lift lever FULLY raised. Buy an operator manual for controls ID, lube specs, operation, etc., and I&T for repair work. Hand cranking- should start at the 6-9 oclock position, give half turns, gripping like the others said.

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old

04-02-2007 07:46:04




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
Theres lots of info to be had here about your tractor. 6 volt system work well if its an easy start but now days most will switch a tractor over to 12 volts because in the long run it cost less to keep running. 12 volt batterys cost less and are easier to find, etc. Now as far as your tractor theres lots of WDs that are sold as WD45 and theres about a 10 HP differance in the 2 of them. To make sure you do in fact have a WD45 look on the right side of the engine, if it has a big plate that bolts on then you have a WD engine which will fit in either one by the way. Also the shifter for a WD45 will have a slight bend to it. Of course the best way to make sure of what you have is by the serial number which is on the rear end houseing on the right side as your looking at it from the back. Just under the brake cover theres a small flat spot and you will find the serail number there. One of the first thing you need to do is buy some thing like an I-T manual for it the one you want is AC-11

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John (MO)

04-02-2007 06:53:38




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
Welcome to AC tractors.
When cranking, only pull up on the crank and do so with you hand or hands only on the outside of the crank, not with your hand on the inside of the arch the crank makes. That way you are much less likely to get injured.

Don"t buy a new battery until you know the condition of your charging system. If you end up needing a new generator, you may want to swich to an alternator and therefore a 12 volt system. If your generator is ok, then you can use a 6 or 8 volt battery if you would like. You can get by with the same starter for 6-8-12 volt system. You will need new light bulbs for a 12 volt system if you use the lights.

You need to get a manual to trouble shoot your hydraulic system. There are lots of places that sell operator manuals and shop manuals for WD45s.

The belt pully has 2 positions. Pulled out slighlty it does not opperate. Loosen a set screw and push it in a little bit and it will turn. I doubt you will have a use for that pully and you can take it off and put a plug in its place if you want.

Battery boxes can be found on a number of sites also. You might want to do a google search of Allis Chalmers, there are other greats sights and forums.

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mtgummibear

04-02-2007 00:20:26




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 Re: New to AC in reply to RobJJ, 04-01-2007 22:43:07  
Rob, I've been away from A-C tractors for several years but spent a lot of time on them as a youngster.

1) If using the hand crank always pull up from the bottom. There was a recent thread on this site regarding just that so read it since many of those people know much more than I do. Yes done wrong you can end up with a broken hand/wrist/arm etc.

2) Personally have never heard of an 8-volt upgrade, but I'm sure there are kits out there to upgrade the entire system to 12 volts from the stock 6 volt system.

3) I assume you are talking about the belt pulley. In the "old" days many implements like corn shellers, feed grinders, buzz saws etc. were powered by a long flat belt running from the tractor pulley to the implement. My memory is that the WD 45 has a separate engagment mechanism which is probably why you don't see the pulley turning. If you engage it, the pulley will turn when the tractor is running, unless the foot clutch is depressed.

If the tractor fires and runs as well as you indicate when you pull start, then chances are you have a pretty solid tractor. And the WD 45 is a real workhorse with after market and used parts plentiful because there were a ton of them sold in their day. It can be tough to find implements to fit the proprietary Allis hitch system, but many of them have been converted to standard 3 point hitch systems.

Enjoy your tractor, in my opinion it's one of the hallmark models produced in that era.

Larry

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