M-01334, Rev. B
Page 19
Step 3
Using a bubble level, check the level at each of the four antenna mounting feet. The
center of the antenna should be ¼” to ½” above the crown of the vehicle roof. A smaller
gap, or no gap, can cause wind noise and/or vibration. Shim underneath the mounting
pads with ¼” ID washers and/or spacers as required.
Step 4
Remove the antenna and clean drill chips and debris from mounting surface.
Step 5
Apply sealant to the bottom of the four (4) mounting pads if no shimming is required.
Step 6
Fill each hole drilled into the roof with sealant. Be sure to use sealant that is compatible
with the roof type. Contact the vehicle manufacturer for information on compatibility with
roof materials.
Step 7
Place the antenna system over the mounting holes that were just drilled
Step 8
Re-install spacers and shims and check that the system is still level, if not, readjust shims.
Step 9
Install the eight (8) lag screws and/or
installer supplied rivets. Longer lag screws
may be required if substantial shimming is
needed for leveling. The lag screws should
penetrate approximately 3/4". (See Figure
4-4.)
Figure 4-4
Step 10
Check that the antenna is still level, adjust if necessary.
CAUTION: MAKE SURE THAT RADOME BASE HAS NOT BEEN TORQUED OR
DEFORMED BY THE INSTALLATION TO THE VEHICLE. IF THE RADOME BASE
IS DEFORMED, OPERATION OF THE ANTENNA PEDESTAL WILL BE
ADVERSELY AFFECTED.
