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Allis Chalmers Discussion Forum
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need advice on WD draft control

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Mastevt

04-14-2006 15:24:41




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I have a 49 WD, that has been upgraded with the WD45 engine, it has the aftermarket 3 point. I have 2 bottom plow, I'm only plowing about 7 inches deep. It does ok, but I have to have a hand on the control at all times and adjust constantly. It pulls it just fine, but when the plow wants to go a little deeper than normal, the tractor stops moving and spins it's tires. I don't have fluid in them, and am not wanting to do that if possible, and no weight up front. It's in great condition, new tires and all. I can't get the draft control, or whats called traction control to work. I have the lower adjustment screw(A) turned out of the body, B turned into the body seperating the plates, and srew D out as far as it will go, all just like the picture shows, I have taken all the linkages into work and repaird them, so very little slop is left. I have adjusted the linkage acording to a post by David_T, where you start the tractor and raise the arms to max height, and shut the tractor off, then stood on the arms and slowly lowered the control to about 1/2 way in the quadrant, so as to lower the arms completly, then adjusted the the outer plate/linkage so they are in the detent when plates are locked together. So far I'v done everything I can that I have read on posts here, but to no avail, I've tried playing with the link rod adjustment on the drawbar, but that only seems to change the position of my control lever on the quadrant. Does anyone have any suggestion as what to do next? Do you think that the large spring down on the drawbar is weak, and is collapsted all the way, so in effect cant move the link rod, and control lever? any help would greatly be apprecitated, thanks.

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CHALMERSBOB

04-16-2006 16:38:49




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 Re: need advice on WD draft control in reply to Mastevt, 04-14-2006 15:24:41  
I PULL 2-14'S WITH A CA WHICH IS LIGHTER THAN YOUR WD. THE 3 PT MUST CONNECT TO THE MOUNTING POINT WHERE YOUR DRAWBAR ATTACHES TO ACTIVATE THE TRACTION CONTROL. YOUR CONTROL LEVER SHOULD BE ABOUT HALF WAY DOWN TO ALLOW IT TO WORK. WHEN WORKING PROPERLY IT WILL TRANSFER WEIGHT TO THE REAR WHEELS WHEN THE PULLING GETS TOUGH, HELPING TO PREVENT YOUR REAR WHEELS FROM SPINNING. BOB



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Mastevt

04-15-2006 06:12:05




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 Re: need advice on WD draft control in reply to Mastevt, 04-14-2006 15:24:41  
Ok, the weight issue makes sense, then were can I get some weights? anybody have any for sale nearby, I live near Kansas City, MO.



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Butch(OH)

04-14-2006 20:15:54




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 Re: need advice on WD draft control in reply to Mastevt, 04-14-2006 15:24:41  
Soil conditos vary widely but our non-weighted WD will pull our 2-16 A-C plow in stubble all day long with the lever clear down (no traction booster) and never spin a tire. To properly control a 3 point plow you need both posision and draft control and you have only draft (maybe) Non the less you should be able to bring the plow clear out of the ground by raisng the lever up just short of the raise pososion usu\ing only the traction booster or draft control. It sounds like you know what you are doing in adjusting the linkage. The draft arm moves foreward under heavy draft. To check pump and valve operation lower plow and leave engine running. Grab the pump lever(that the draft arm hooks to) with a med sized pair of channel locks and rotate it the direction it would travel if the draft was heavy. you should be easily able to lift the plow right off the ground, if not you have some problems. Plowing with a 3 point adapter on a WD will never be a hands off operation. The way a mounted 3 point plow works the plow is pulling down on the tractor all the time anyway, in other words maximum traction boost. As one of the other posters aid you sometimes have to add some weight to make the booster work effectively. Put a set or two of rear weights on instead of fluid.

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Sid

04-14-2006 19:35:50




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 Re: need advice on WD draft control in reply to Mastevt, 04-14-2006 15:24:41  
I believe you have answered your own question. "It pulls it just fine, but when the plow wants to go a little deeper than normal, the tractor stops moving and spins it"s tires. I don"t have fluid in them, and am not wanting to do that if possible, and no weight up front. It"s in great condition, new tires and all. I can"t get the draft control, or whats called traction control to work." If your tires re loosing traction "spinning tires" your traction booster is not going to work.

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John (MO)

04-14-2006 16:20:53




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 Re: need advice on WD draft control in reply to Mastevt, 04-14-2006 15:24:41  
You said you have a 3 point adapter, are you using a 3 point plow? If you are, does your adapter for the lower lift arms attach to the Allis draw bar? Is the pull from plow, through the lower lift arms, going only to the draw bar? I have seen people make 3 point adapters that can not take advantage of the Allis traction boost system because the pull from the implement does not come through the snap coupler, which is where the traction boost system takes it`s message. This may not be your problem at all, but it is a problem that a lot of people make for themselves when they make a 3 point adapter.

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Mastevt

04-14-2006 18:58:42




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 Re: need advice on WD draft control in reply to John (MO), 04-14-2006 16:20:53  
yes the lower lift arms are attached to the drawbar, so the lower arms should be transfering the full pull force thru to the linkage for the traction assist.



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Bill(Wis)

04-15-2006 04:27:15




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 Re: need advice on WD draft control in reply to Mastevt, 04-14-2006 18:58:42  
Please read Sid's post again. My personal observations: The '49 WD came from the factory with tires filled to approx 75% capacity with NaCl solution. Wheel weights were an extra cost option. Everyone I know of around here (meaning heavy soil) bought the wheel weights - two per wheel- 600 lbs total. Always used them for plowing and then took them off for most everything else. With no wheel weights and no fluid you are, in my opinion, way, way under weight for what you are trying to do. That's why your wheels spin out. That's why the draft control doesn't work properly.

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Bill(Wis)

04-15-2006 10:41:22




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 Re: need advice on WD draft control in reply to Bill(Wis), 04-15-2006 04:27:15  
Sorry, I meant CaCl. Not the first mistake but hopefully the last. Ha,Ha.



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