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Prerequisite only! Use this guide to remove the outer housing and open the Dewalt Nailer DCN21PL 2018 for further repairs.
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Before you begin the repair, remove the battery from the device.
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Use a T10 driver to remove the four screws securing the bottom half of the casing.
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Remove the four T10 screws securing the top half of the casing.
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Use a T10 driver to remove the screw securing the magazine to the base.
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Pull the magazine down and away to unlatch and release it from the nailer.
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Use a T15 driver to remove the framing hook retaining screw.
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Remove the hook.
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Use your two thumbs to firmly spread the metal hook clamp apart while slowly pushing it forward off the handle.
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Use a sharp blade to slice the label underneath the battery mount to disconnect the two halves of the case.
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Use a T20 driver to remove the two screws securing the two halves of the case to the front assembly.
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Use the provided 3.5 mm hex key to remove the two return system bolts on either side of the nailer.
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Grab the end cap and slide the return system assembly out of the back of the nailer to remove it.
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Use a small flathead screwdriver in the gap between the two halves of the casing near the trigger to pry the two halves apart.
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Use a small flathead screwdriver near the top seam to continue prying the case apart .
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Once loose, lift up to remove the right half of the clamshell case.
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Remove the plastic lens cover.
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Grasp either side of the main circuit board and slowly pull it up and out of the slot in the casing.
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Pull up on the trigger lock to remove.
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Flip the nailer over.
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Remove the remaining clamshell casing.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
