frozen qd bushing. HOW I GOT IT OUT!!

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grump507

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i spent hours trying to heat and beat this bushing out after it broke when using the bolts as jack screws as recommended. i drilled 4 holes spaced around the bushing with a drill size that just about touched the shaft and the flywheel. a few good smacks with a 5 pound sledge and chisel and the pieces broke and went through the back and whala the flywheel is released. THE BUSHING MATERIAL WAS ACTUALLY REALLY EASY TO DRILL. I USED A SLOW SPEED WITH ALOT OF PRESSURE AND OIL TO KEEP DRILL FROM BURNING. MAKE SURE THE FLYWHEEL IS SUPPORTED FROM ABOVE WHEN THE PRESSURE IS RELEASED AS IT WILL CRUSH YOU. I USED A CHAIN WRAPPED AROUND IT AND USED OUR TRACTOR TO LIFT. THEN WITH THE PRESSURE STILL ON THE CHAIN I PUT SEVERAL WELDS AROUND THE FLYWHEEL SO THE CHAIN CANT SLIDE OFF. ONCE I PUT IT BACK ON I CAN JUST GRIND THE WELDS OFF.
 
is your chipper a 16" or a 12". I have the 16". Great chipper but one of the blades shifted and wrecked the rest of the blades as well as the cutter bar. Drum also got bent where the blades rest.
 
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