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4.5 External Mount Installation (Optional)
Physically attach the system as follows:
1. Securely attach the external shelf bracket to the vehicle. Make sure it is level. The
mounting hardware must include proper means to resist vibration loosening, such as
thread-locking compound or locking hardware. Torque all hardware as appropriate for its
size and grade.
2. Slide the support bracket over the bottom of the mast and insert the base of the mast
into the shelf bracket. Rotate the mast so that the slot in the bottom of the mast drops
over the key in the bottom of the shelf bracket.
3. Slide the support bracket up the mast to the collar on the base tube. The vertical height
of the support bracket should be a maximum of 56 inches from the horizontal surface of
the shelf bracket to the top of the support bracket. The minimum should be 50 inches.
4. Secure the support bracket to the wall structure. Spacers may be added between the
support bracket and the wall as needed to keep correct alignment between the support
bracket and the shelf bracket. Make sure the mast is plumb. The mounting hardware
must include proper means to resist vibration loosening, such as thread-locking
compound or locking hardware. Torque all hardware as appropriate for its size and
grade.
5. If using the optional antenna stub, see Section 4.8 for installation.
6. Periodically inspect all fasteners and welds to make sure the mast is securely attached.
TP-5928001-C
February 2023
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4-3
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