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Allis Chalmers Discussion Forum
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traction booster on WD-45

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Kevin Blake

11-23-2006 17:39:05




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Excuse my ignorance.....I don't know what the "traction booster" gauge is for on my WD-45. The '45 we had when I was a kid was an older model and either didn't have this gauge or this feature or both. Is it like a hydraulic positrac? Anyone know how it works or what it is? The gauge reading changes but I haven't noticed a pattern on what it's doing when yet.




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JMS/MN

11-24-2006 07:21:56




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 Re: traction booster on WD-45 in reply to Kevin Blake, 11-23-2006 17:39:05  
Traction Booster is a draft-sensing system that operates with mounted equipment, and in later years, with certain drawn implements equipped with a special hitch. The large spring above the drawbar is the load sensing device, mechanically linked to the hydraulic valve. As load or slippage increases, it slightly raises the plow/disc, etc. and that action puts more weight down on the rear wheels, increasing traction. Guage shows relative amount of weight being transferred. Thus, any time the implement is fully raised, the needle should be pegged. The spring and shims are factory set,, slhould not be messed with. Linkage rod and ABCD screws need to be properly set to attain desired control. Decal on right side of battery box has details, as well as the operator manual.

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JMS/MN

11-24-2006 07:24:56




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 Re: traction booster on WD-45 in reply to JMS/MN, 11-24-2006 07:21:56  
TB system was on the WD, guage was added when the WD45s came out. When plowing, raise the lift lever about half-way up the quadrant, and you should see needle response as you drive along. Set it too high and the plow will not maintain accurate depth.



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Sid

11-23-2006 18:50:16




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 Re: traction booster on WD-45 in reply to Kevin Blake, 11-23-2006 17:39:05  
This is from an earlier WD owners manual found in the hydraulic system under drawbar control. Maybe it will help. "If the pull becomes greater, the plow through the hydraulic system, has a tendency to raise;the weight of the ground plus the weight of plow through the linkage is transferred to rear wheels providing more traction to get through this tough spot which created the additional drawbar load." A lot of guys didn't bother to read the owners manual and didn't know just what their tractors could do. Fortunatley we had a dealer who when he sold something often went to the field with it and helped set things up. He also would sometimes stop by and watch us for awhile and would look for and help us to look for signs that thing were maybe out of whack and how to adjust them.

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Sid

11-23-2006 18:50:05




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 Re: traction booster on WD-45 in reply to Kevin Blake, 11-23-2006 17:39:05  
This is from an earlier WD owners manual found in the hydraulic system under drawbar control. Maybe it will help. "If the pull becomes greater, the plow through the hydraulic system, has a tendency to raise;the weight of the ground plus the weight of plow through the linkage is transferred to rear wheels providing more traction to get through this tough spot which created the additional drawbar load." A lot of guys didn't bother to read the owners manual and didn't know just what their tractors could do. Fortunatley we had a dealer who when he sold something often went to the field with it and helped set things up. He also would sometimes stop by and watch us for awhile and would look for and help us to look for signs that thing were maybe out of whack and how to adjust them.

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