Sea Tel 9797A-27, Installation And Operation Manual

Page: 38 / 93

Maintenance and Troubleshooting 9797A-27 C-Band TXRX
7-2
whether or not supplied by Sea Tel commonly used in Satellite Communications (TXRX) Systems. These
equipments are covered by the applicable warranties of the respective manufacturers.
Factory refurbished components used to replace systems parts under this warranty are covered by this same
warranty as the original equipment for the balance of the original warranty term, or ninety (90) days from the
date of replacement, whichever occurs last. Original Installation of the Series 97 system must be
accomplished by or under the supervision of an authorized Sea Tel dealer for the Sea Tel Limited Warranty to
be valid and in force.
Should technical assistance be required to repair your system, the first contact should be to the agent/dealer
you purchased the equipment from.
Please refer to the complete warranty information included with your system.
7.2. Recommended Preventive Maintenance
Ensure that all of the normal operating settings (LAT, LON, HDG, SAT and al of the Tracking Receiver
settings) are set correctly. Refer to the Functional Testing section to test the system.
7.2.1. Check ACU Parameters
Assure that the parameters are set correctly (you may wish to record them).
7.2.2. Latitude/Longitude Auto-Update check
Refer to the Latitude & Longitude Update check procedure in the Functional Testing section of this
manual.
7.2.3. Heading Following
Refer to the Heading Following verification procedure in the Functional Testing section of this manual.
7.2.4. Azimuth & Elevation Drive
Refer to the Azimuth & Elevation Drive check procedure in the Functional Testing section of this manual.
7.2.5. Test Tracking
Refer to the Tracking check procedure in the Functional Testing section of this manual.
7.2.6. Visual Inspection - Radome & Pedestal
Conduct a good, thorough, visual inspection of the radome and antenna pedestal. Visually inspect the
inside surface of the radome top and of the antenna pedestal. Look for water or condensation, rust or
corrosion, white fiberglass powder residue, loose wiring connections, loose hardware, loose or broken
belts or any other signs of wear or damage.
1
Radome Inspection - All the radome flanges are properly sealed to prevent wind, saltwater
spray and rain from being able to enter the radome. Re-seal any open (“leaky”) areas with
marine approved silicone sealant. If heavy condensation, or standing water, is found inside the
radome, isolate and seal the leak, and then dry out the radome. Small (1/8 inch) holes may be
drilled in the base pan of the radome to allow standing water to “weep” out.
2
Antenna Pedestal Inspection - The springs and Wire Rope Isolators should not be frayed,
completely compressed, or otherwise damaged. The plated and painted parts should not be
rusted or corroded. The harnesses should not be frayed and all the connectors should be
properly fastened and tightened. All hardware should be tight (no loose assemblies or counter-
weights). Replace, re-coat, repair and/or tighten as necessary.
7.2.7. Mechanical Checks
Turn the pedestal power supply OFF