As I remember,there are 3 (or 2 or 4) balls inside the actuator,and they roll in a groove which narrows as it causes the actuator to expand.They can hang up in the groove,keeping the brakes applied. They can hang up because the ball is worn, or the groove. A different actuator may be needed if the groove is worn.Also the housing brake surfaces may be worn,and you might have to have outer housing machined down a little to compensate the over expansion of the actuator.Mark
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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