Changing a Drive Blade - Model 445
| Replacing the drive blade for the Model 445 pneumatic nailer. |
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| Mount the nailer upside down in a padded vise. |  |
| Remove the 4 socket head cap screws with a 3/16" hex wrench. |
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| Lift the channel assembly and adapter foot vertically off the driving blade. |  |
| Remove the rubber bumper. |  |
| Pull the drive blade assembly to the top of the nailer. |  |
| Remove the driving blade jam nut using the 11/16" & 15/16" box wrench. |  |
| Remove the 1/4" dowel pin holding the drive blade. |  |
| Remove the drive blade. |  |
| You are now ready to insert a new drive blade. |
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| Insert a replacement drive blade into the slot of the piston rod. |  |
| Replace the dowel pin. |  |
| Screw the jam nut back in place over the base of the drive blade. |  |
| Tighten the jam nut thoroughly using the 11/16" & 15/16" box wrench. |  |
| Insert the rubber bumper. |  |
| Place the channel assembly with foot over the drive blade. |
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| Install the (4) 1-1/4" screws with lock washers & tighten firmly. |  |
| Nailer is now ready for connecting air and functional testing. |
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