Mechanical Parts

Machined

Surfaces (Not

Galvanized)

Inspection

Local

Control/Motor

Drive Controller

Clean mechanical parts by first removing dust, dirt, and other loose contaminants with a scraper, stiff brush (bristle or wire in the case of rust or other corrosion), or cloth or com- pressed air at 25 to 40 psi. Any accumulated imbedded dirt, corrosion, grease, or oil deposits that require further cleaning may be removed with a bristle or wire brush and a cleaning solvent such as trichlorethylene or equal. After cleaning, allow cleaned parts to dry for 10 to 15 minutes before placing the equipment into operation.

For functional reasons, certain machined surfaces cannot be galvanized. These sur- faces must be coated on a regular basis with a rust preventative coating. These sur- faces include threaded holes, the azimuth bearing ring, and azimuth bearing mounting surfaces. Andrew recommends the rust preventative coating Cortec VCI-368. For damp environments, application should be every six months. For dry environments, application once a year should be sufficient.

The frequency of inspection is contingent upon the user’s individual standards and the operational environment in which the earth station is located. However, a visual inspec- tion of the earth station components should be performed at least semi-annually. Where there are no established wear limits, perform a visual inspection to locate worn or dam- aged parts which could cause improper functioning of the earth station. It is recommend- ed that the mechanical and electrical inspection be performed on the assembled or par- tially disassembled equipment to determine the extent of disassembly required prior to completely disassembling a suspected malfunctioning component or module. In the absence of any special inspection requirements, operational tests are the most effective means in isolating parts and assemblies requiring further inspection. Any condition noted during inspection that may preclude continued proper operation of the earth sta- tion prior to the next scheduled inspection should be noted. The discrepant condition should be corrected (repaired or replaced) immediately or at the conclusion of the inspection procedure.

Inspection of the local control/motor drive controller conforms generally to standard visu- al inspection procedures on electromechanical equipment. In addition to these standard procedures, perform the following checks and visual inspections for the specific condi- tions noted:

Check the front panel for illegible and indistinct panel markings.

Check the three position selector switches (Azimuth Off/Slow/Fast, Elevation-

Off/Slow/Fast, and Polarization-CCW/Off/CW) for smooth operation, audible clicking at each actuation (left to center and return) and spring return from right to center. For each of the two position selector switches (Azimuth-East/West, Elevation-Up/Down, and Local/Remote) check for smooth operation and audible clicking at each actuation.

Inspect all wiring and cables for discolorization and burned insulation, dirt, breaks,

security of connection and other signs of deterioration. Examine connections for dirt, flux, corrosion, and mechanical defects. Check for loose or broken lacing and cut, brittle, abraided, frayed, or cracked insulation.

Examine connectors for corrosion, broken inserts and stripped threads. Check con-

nector shells for distortion and dents, and contact pins for bends, misalignment, or other deformities. Check connector inserts for carbon tracking indicating arc-over.

(Cortec VCI-368 is a trademark of Cortec Corporation, 4119 White Bear Pkwy., St.Paul, Mn. 55110, 1-800-426-7832)

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Preventive Maintenance

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Andrew ES76PK-1 installation instructions Preventive Maintenance

ES76PK-1 specifications

The Andrew ES76PK-1 is a robust and highly efficient satellite communication antenna designed for both commercial and military applications. Its innovative design and advanced features make it an exceptional choice for high-performance connectivity.

One of the standout characteristics of the ES76PK-1 is its impressive gain. With a gain of approximately 76 dBi across a wide range of frequencies, it ensures optimal signal reception and transmission even in challenging environments. This high gain makes it ideal for applications requiring reliable long-distance communication, such as remote site operations or disaster recovery efforts.

The construction of the ES76PK-1 also prioritizes durability and resilience. Built with sturdy materials, this antenna is resistant to harsh weather conditions, including high winds, rain, and extreme temperatures. Its lightweight yet robust design allows for easier installation and maintenance, making it suitable for both fixed and mobile setups.

In terms of technology, the Andrew ES76PK-1 leverages advanced polarization techniques, which enhance its ability to transmit and receive signals effectively. This polarization capability ensures minimal signal degradation and interference, providing users with consistent and high-quality communication links. Furthermore, the antenna supports multiple frequency bands, thus offering flexibility in deployment and compatibility with various satellite systems.

The antenna's design incorporates a high level of precision engineering. This not only contributes to its excellent performance but also allows for fine azimuth and elevation adjustments. This feature is crucial in aligning the antenna accurately with satellite signals, further improving the quality of service for users.

Another key aspect of the Andrew ES76PK-1 is its compatibility with a range of RF systems. This versatility makes it a favored choice among service providers and enterprises looking to implement or upgrade their satellite communication infrastructure.

In summary, the Andrew ES76PK-1 stands out in the competitive landscape of satellite communication technologies. With its high gain, durable construction, advanced polarization, and compatibility with various systems, it meets the stringent demands of modern communication needs. This antenna is an excellent investment for anyone looking to achieve reliable and efficient satellite connectivity.