Watchguard Firebox M4600 Quick Start Manual page 5

Attach the L-shaped brackets to the outer rails
The four L-shaped brackets secure the outer rails to the rack. You must attach the L-shaped
brackets to the outer rails first.
1. Locate the eight flat head screws and the eight nuts (B).
2. Use two flat head screws and two nuts to connect an L-shaped bracket to the outer rail
through any two of the four holes at the end of the outer rail. Position each nut on the
outside of the bracket, and attach a screw from the inside of the outer rail.
3. Do not fully tighten the nuts yet.
4. Slide out the center of the outer rail to expose the screw holes at the other end of the rail.
5. Use two flat head screws and two nuts to connect a second L-shaped bracket to the other
end of the outer rail through any two of the four holes at the end of the outer rail. Position
each nut on the outside of the bracket, and attach a screw from the inside of the outer rail.
The fully assembled outer rail looks like this:
6. Do not fully tighten the nuts yet because you will need to adjust the location of the rear
bracket to match the depth of your rack.
7. Repeat these steps to attach the other two L-shaped brackets to the other outer rail.
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Attach the outer rails to the rack
1. Locate the countersink screws and conical washers (C).
2. Use two screws and conical washers to connect the front bracket on the outer rail to the front
post of the rack. Make sure that the sliding center rail is located toward the front of the rack and
faces the center.
3. Extend and adjust the rear bracket depth to match the depth of the rack.
4. Use two countersink screws and conical washers to connect the rear bracket to the rear post of
the rack.
5. Repeat these steps to attach the other rail to the other side of the rack. Make sure the sliding
center section of each rail is positioned at the same depth within the rack.
6. Tighten the nuts and screws that attach the L-shaped brackets to each of the rails. You can use a
wrench for this step.
Install the Firebox in the rack
1. Pull out the center rail on each side until the extension safety lock is locked.
2. Hold the Firebox with its front facing you. Lift the Firebox and carefully slide the inner rails on
each side of the chassis into the outer rail on each side of the rack.
3. Press the safety lock tabs on the inner rails, and slide the Firebox into the rack until the front
mounting brackets touch the front posts of the rack.
4. Use rack screws and a washer (not included) to attach the front ear brackets to the rack.
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