Nail Channel Rebuild - Model 445 (back)
4.43
 

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Nail Channel Rebuild - Model 445 Pneumatic Nailer.

Remove the adapter foot and nail channel from the nailer.

Also separate the nail channel from the adapter foot.

Remove the four 1/2" socket head cap screws from the steel foot.
Remove the steel foot.
Remove the two 3/4" socket head cap screws that are holding the gate plate and gate to the channel.
Remove the gate plate.
Remove the 4 socket head cap screws that are holding the gate to the channel.
After removing the screws, use a hammer to work the gate off the channel.
Note the two roll pins located on the gate.
The channel has matching holes for realigning the gate during reassembly.
Remove the 1-1/2" screw and locknut from the pusher spring.
Slide out the nail pusher assembly.
Remove the spacer.
Remove the 1-1/4" socket head cap screw from inside the knob.
Disassemble all parts of the nail pusher assembly.
Examine all parts for wear and replace as necessary.
Nail channel is ready for reassembly.

Reassemble the pusher spring and 2 spools.
Slightly release tension on the spring to put the spools in place.
Use the 1-1/4" socket head cap screw to mount the parts to the nail pusher assembly.
Insert the spacer.
Slide the nail pusher assembly into the channel.
Install the 1-1/2" screw and locknut.

Tighten firmly.

Identify the 2 guide pins on the gate and assemble the gate plate to the gate.
Use 2 socket head cap screws to attach the gate plate to the gate.

Tighten firmly.

Slide the nail pusher assembly down the channel.
Put the gate plate over the gate while matching the 2 roll pins.
Use a hammer to tap the gate assembly onto the channel.
Install the four 3/4" socket head cap screws to secure the gate and gate plate to the channel.
Tighten firmly.
Use the four 1/2" socket head cap screws to reinstall the steel foot.

Firmly tighten all four screws.

Nail channel rebuild is now complete.