Introduction
Follow this guide to replace the arbor shaft bearings on an EDCO PRO KL-18 walk behind concrete saw model 39600-HD.
What you need
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Chock the wheels to prevent the machine from moving while you are working on it.
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Flip the ignition switches on the motor and the handle bar into their "OFF" positions.
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Grab the plastic housing at the end of the spark plug wire.
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Pull firmly to disconnect the wire from the spark plug.
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Use a 9/16 inch socket to remove the two bolts securing the belt guard to the main frame.
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Use a 9/16 inch wrench to loosen the lock nut on the belt-tensioner bolt.
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Use a 9/16 inch socket to remove the belt-tensioner bolt from the frame.
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Use a 9/16 inch wrench to remove the nut securing the ground wire to the engine block.
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Use a 9/16 inch wrench to loosen the four nuts securing the engine block to the frame, two on the front and two on the back.
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Lift the outermost belt out of its pulley groove and rotate the motor pulley to remove it.
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Repeat for the two remaining belts.
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Place the guide bar onto the ground out of the way of the blade guard.
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Lift the guide bar back up off the ground into its vertical position.
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Use a pen to mark the location of the pulley on the arbor shaft.
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Use a 5/32 inch hex key to loosen the two arbor shaft pulley set screws.
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Use a pen to mark the locations of both of the arbor shaft pulleys.
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Use a 1/8 inch hex key to loosen the two set screws on the arbor shaft bearing opposite the backing plate.
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Use a 1/8 inch hex key to loosen the two set screws on the arbor shaft bearing next to the blade backing plate.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.