Disassembly of the Model 445FS (back)

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Disassembly of the Model 445FS Pneumatic Stapler.
(Print a Workbench Copy)

Mount the stapler in a padded vise.
Using a soft cloth and screwdriver, pry up and remove the rubber cap.
Remove the 4 screws holding the stapler cap.
Remove the stapler cap.
Activate the red safety trigger to release the safety yoke.
Remove the body plate.
Remove the 2 safety yoke springs.
Remove the screw holding the trigger cable to the safety yoke.
Remove the safety yoke.
Next, we'll remove the 3 cap screws from the plunger using a 5/32" hex allen wrench.
Remove the plunger.
Remove the O-ring gasket.
For the next step, you will take the nailer out of the vise.  You then mount the stapler back in the vise with the stapler shoe facing up.
Remove the 4 socket head cap screws with a 3/16" hex wrench.
Lift the channel assembly and adapter foot vertically off the driving blade.
Remove the rubber bumper.
Remove the driving blade assembly.  If the driving blade is broken, tap out from the other side.
Stapler disassembly is now complete. The stapler is now ready for replacement of seals or other worn components.