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This guide shows how to remove and replace the PTO assembly for the Dewalt Nailers DCN660D1 and DCN680D1. The replacement part does not come with some minor components, so you must transfer them from the original part.
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Use a T10 driver to remove the ten screws securing the outer housing.
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Lay the device on its left side (with the belt hook).
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Lift and remove the right housing from the device.
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Remove the lock button from its recess.
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Slide the battery connector out of its recess.
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Remove the switch board from its housing recess.
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Remove the two spring clips from the housing.
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Be sure to route the wires through the yellow groove.
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Be sure to reattach the spring clips.
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Carefully flip the device over.
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Remove the left housing from the device.
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Carefully remove the release button from the device.
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Remove the button spring from the device.
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Slide the dowel pin securing the PTO assembly out of the device.
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Use a T10 driver to remove the two screws securing the solenoid.
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Lift the solenoid away from the device.
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Slide the solenoid off the PTO assembly's rails.
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Reassembly tip: When you slide the solenoid back onto the PTO assembly, make sure to align the plastic pin to the notch.
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Use a flathead screwdriver to pry off the rubber stopper securing the plunger pin.
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Remove the plunger pin from the PTO assembly.
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Remove the plunger and spring from the PTO assembly.
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Install the plunger, spring, and pin onto your replacement assembly.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
