Hi After looking at your picture and the pins looking like regular roll pins my guess is the pins are brittle due to the hardness of them, and the slight bit of slop even in the new teeth just breaks them up. they don't just fall out whole. My buddy has a MF backhoe loader thats worn out. His bucket teeth are held by a pin that is 2 outer steel halves and a rubber piece in the middle. When you bang them in they contract some and expand tight in the hole. He's not loosing teeth and last time I looked they were so worn on the fittings they all moved about 1/2 inch. I wonder if that type pin would work better, as they can flex in the middle a bit. I just googled something like excavator bucket teeth pins, and they came up in the images.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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