OM45T_
Rev N
Page 17
4.0 Preventive Maintenance
The following sections contain periodic preventative maintenance instructions for the 4.5m ESA. Included in
these sections are instructions for performing inspections, preventative maintenance procedures, and general
cleaning.
NOTE:
Refer to applicable vendor manuals for any repair procedures that are not included in this manual.
The following sections describe the cleaning, inspections, and preventative maintenance procedures. Regularly
replacing normally functioning assemblies or components as a preventative measure is not required.
Malfunctions of your Earth Station Antenna can normally be traced to components and/or parts through the use
of troubleshooting procedures.
4.1 General Cleaning
To prevent excessive accumulation of dust and dirt, as well as to ensure the removal of various contaminants,
the equipment needs to be thoroughly cleaned. It is recommended that you clean the antenna every time you
conduct a visual inspection of the components. No special cleaning procedures are required. However, to ensure
trouble-free operation, it will be necessary to clean in accordance with the following procedures (
Sections 4.1.1
and
4.1.2
).
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4.1.1 Electrical Parts
CAUTION:
Confirm
ALL ELECTRICAL POWER IS REMOVED
BEFORE proceeding
.
Minor cleaning, such as the removal of dust and loose foreign particles, can be accomplished by one or all
of the following methods:
•
Vacuuming
•
Using a soft-bristle brush or lint-free cloth
•
Using an air compressor, with dry air at a LOW PRESSURE (between 5 and 25 psi), to blow out dust
and dirt
NOTE:
When using air to clear contaminants, take extreme care when blowing air stream on or near ANY delicate parts.
To remove imbedded dirt, grease, and/or oil from electrical parts:
•
Use a 50% solution of Isopropyl “rubbing” alcohol
•
Apply to surface with a soft-bristle brush
NOTE:
At times, it may be necessary to brush some parts vigorously with a stiff bristle brush in order to remove imbedded
or hardened dirt particles.
NOTE:
After cleaning,
ALLOW CLEANED PARTS TO DRY FOR 10-15 MINUTES
before restoring power and/or
returning equipment to operation.
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4.1.2 Mechanical parts
Cleaning of mechanical parts starts by removing dust, dirt, and other loose contaminants by using a scraper,
stiff-bristle brush (or a wire brush is cases of rust or corrosion removal), lint-free cloth, or compressed air
(pressure between 25 and 40 psi). Any accumulation of imbedded dirt, corrosion, grease, or oil deposits
which require more cleaning may be remove with a stiff-bristle or wire brush, in concert with a cleaning
solvent such as acetone (or an equivalent).
NOTE:
After cleaning,
ALLOW CLEANED PARTS TO DRY FOR 10-15 MINUTES
before restoring power and/or
returning equipment to operation.
