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INSTALLING THE MAST ONTO A WOODEN DECK POST
9. Install a 3/8-inch washer on a 3/8-inch x 4-inch lag screw.
10. Use a 9/16-inch socket wrench to screw the lag screw into
the top center hole of the base plate (see Figure 11). You
may need to swing the mast out of the way temporarily.
Tighten the screw snugly so that the base plate can barely
move.
Do not pound the lag screws into the post with a hammer or mallet.
Doing so may split the wood and render the post unusable.
11. Re-plumb the mast in two perpendicular directions as you
did in step 5. You may need to make adjustments to the mast
and/or the base plate.
12. Tighten the lag screw snugly so that the base cannot move.
13. Use a 1/2-inch socket wrench to tighten the adjustment nuts.
14. Re-plumb the mast. (Tightening the nuts can move the mast
off plumb.) Note: the mast must be plumb before proceed-
ing.
15. Repeat step 6 and step 8 to drill holes for the top left center,
top right center, bottom left center, and bottom right center
holes. See Figure 11.
Note: You must mark the center of all remaining screw holes
accurately. A Stanley Jumbo Self Centering Nail Set or similar
product will produce the best results. A #6 washer can also be
used to guide your pencil as it marks the hole center
Note: the base plate must not move when you drill the holes.
16. Fill the holes with silicone sealant.
17. Install a 3/8-inch washer on each of the 3/8-inch x 4-inch
lag screws.
18. Use a 9/16-inch socket wrench to screw the lag screw into
the four holes. Do not tighten the screws fully.
19. Re-plumb the mast and snug down the four screws firmly.
20. Use a 1/2-inch socket wrench to loosen the mast adjustment
nuts and swing the mast down so you have access to the bot-
tom center hole.
21. Repeat steps 6 and 7 to drill holes for the bottom center
hole.
Note: the base plate must not move when you drill the hole.
22. Fill the hole with silicone sealant.
23. Install a 3/8-inch washer on the final 3/8-inch x 4-inch lag
screw.
24. Use a 9/16-inch socket wrench to screw the lag screw into
the lower center hole. Do not tighten the screw fully.
25. Re-plumb the mast and snug down the lag screw.
26. Use a torque wrench to sung down the mast adjustment nuts
to 18 ft.-lbs. Confirm the mast is plumb after torquing.
Note: The mast must be plumb before you can proceed. If you cannot
plumb the mast, repeat the installation or find another installation site.
Continue with section "Installing the Cap Onto the Satellite
Dish" on page 23.
14
Top left center
All lag screws
3/8-inches x 4-inches
Bottom left center
Bottom
Figure 11
Top
Top right center
Top center
Center line
Bottom center
Bottom right
center
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