16
INSTALLING THE MOUNT ON A WOOD ROOF FRAME
16. Install a 3/8-inch washer on each of the 3/8-inch x 2-inch
lag screws. Apply soap or some other lubricant to the
screws.
17. Use a wrench (preferably a ratchet) to screw the lag screw
into the four holes. Tighten the screws loosely.
18. Re-plumb the mast and snug down the four screws firmly.
19. Loosen the mast adjustment nuts and swing the mast down
so you have access to the bottom center hole.
20. 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.
21. Install a 3/8-inch washer on the 3/8-inch x 4-inch lag screw.
Apply soap or some other lubricant to the screw.
22. Use a wrench (preferably a ratchet) to screw the lag screw
into the lower center hole. Tighten the screw loosely.
23. Re-plumb the mast and snug down the lag screw.
24. 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.
INSTALLING THE BRACE KIT
1. Slip the short 18-inch strut collar onto the mast as shown in
2. Re-plumb the mast.
3. Apply silicone sealant to the bottom of the mounting plate.
4. Position the strut mounting plate above the mast and base
plate so the two screw holes are exactly in line vertically
with the mast base plate center holes (see Figure 18).
5. Mark the center of the top mounting plate screw hole (see
6. Drill a hole on the center mark in the manner described
below. Note: to avoid drilling too deeply, wrap a piece of
masking tape around the drill bit shank at the appropirate
depth so that you can see when you should stop drilling.
Drill a 1/16-inch pilot hole 2 inches deep.
Going into the pilot hole, drill a 5/32-inch hole 4 inches
deep.
Going into the 5/32-inch hole, drill a 1/4-inch hole to a
depth equal to the unthreaded portion of the 1/4-inch x 4-
inch lag screw.
7. Install a 1/4-inch washer on the 1/4-inch x 4inch lag screw.
Apply soap or another lubricant to the screw.
8. Use a wrench (preferably a ratchet) to screw the lag screws
into the mounting plate hole.
Note: Do not pound the lag screws into the stud with a hammer or
mallet. Doing so may split the wood and damage the stud.
9. Detach the strut from the mounting plate and repeat steps 5-
8 for the lower center hole. Reattach the strut when done.
Figure 17
Figure 18
Center line
Top center hole
Bottom center hole