ViaSat Series 8345, Installation Manual

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Chapter 2 - Installation
WARNING
A shear pin is provided in both the manual drive adapter and
drive coupling between the reducer and jack. Only the
specified shear pin shall be used during the operation of the
antenna. Any modification or substitution to the specified
shear pin without written approval by ViaSat Antenna
Engineering will void all warranties and shall nullify ViaSat of
all liability of property or personal injury.
Refer to Figure 2-6 and perform the following to install the elevation actuator:
CAUTION
The elevation actuator should only be manually driven when
electrical power is not available.
1. The elevation actuator can be driven manually when electrical power is not
available. Manually release the motor brake by rotating the brake release level
90°.
2. Attach a 1-inch socket to the manual drive adapter located on the elevation jack
and rotate as required.
3. Position the elevation actuator to the load frame and install the lower clevis pin
and spiral retaining rings in two places.
2.11.5 Installation of Hub Support Brackets
Refer to Figure 2-6 and perform the following procedure to install the hub
support brackets.
NOTE
All hardware used to attach support brackets to the hub must
remain loose until after the elevation pivot pins are installed.
1. Attach elevation jack clevis support bracket to bottom of hub with 1/2-13 x 2-
inch bolts, washers, and nuts.
42S199F
2-23