Edgetech 2000-TVD, User Hardware Manual

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5-1
5.0 MAINTENANCE
The 2000 Series Combined Side Scan Sonar and Sub-Bottom Profiling System is ruggedly designed and
built and therefore requires little maintenance. However, to ensure long lasting and reliable service, some
periodic maintenance is recommended.
This section provides some maintenance recommendations and includes instructions on how to
disassemble and reassemble the 2000-CSS towfish should it be required to access and remove the
electronics chassis in the electronics bottle. In addition, instructions on how to calibrate the compass are
included, along with troubleshooting guides and lists of major components for the 2000 topside computer
and the 2000-CSS towfish.
5.1 Periodic Maintenance
Maintenance on the 2000-CSS should be performed on a regular basis or as often as necessary, depending
on use. However, most of the maintenance is performed after each deployment and recovery cycle of the
towfish. No periodic maintenance is required for the Rack Mount topside.
5.1.1 Inspecting and Cleaning the Towfish and Tow Cable after Use
After retrieving the towfish from the water, use a hose to wash it down, along with the tow cable, with
clean, fresh water. Thoroughly spray the transducer arrays and remove any buildup of debris. Inspect the
cables and connectors for any damage and check for loose connections. Also, inspect the tow cable and
the connectors on each end.
After washing down the towfish, clean the transducer arrays using a mild, non-abrasive detergent and
water. Do not use any abrasive detergents or ammonia based cleaners. After cleaning, thoroughly spray
the transducer arrays again with fresh water.
5.1.2 Inspecting and Cleaning the Underwater Connectors
Regularly inspect the contacts on the male pins of each underwater connector in the towfish and on the
tow cable for corrosion or oxidation. To remove any oxidation, rub the contacts lightly with 800 grit emery
cloth cut into strips equal to or less than the width of a contact. A pencil eraser can also be used for this
purpose. The female sockets can be cleaned using a cotton swab and rubbing alcohol. A .22 caliber bore
brush with only nylon bristles can be used to remove light oxidation.
To extend the life and increase the reliability of the connectors, apply a thin film of silicone dielectric
grease, such as Novagard® G624 ® general purpose silicone grease or an equivalent, to the entire surface
of each male pin. A small amount of grease should also be applied to the opening of each female socket.