Klein Marine Systems, Inc. HYDROCHART 3500, Operation And Maintenance Manual

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4-1
CHAPTER 4: M
AINTENANCE
This chapter provides instructions for maintaining the HydroChart 3500 Sonar
System on a daily, a weekly and a long term basis. In addition, instructions are
provided for disassembling and reassembling the Sonar Head Unit.
4.1 Daily Maintenance Checklist
Perform the following maintenance steps at the end of each day’s operation:
1.
Turn off the power to the TIU and to the PC.
2.
Verify that the deck cable is securely connected to the Sonar Head Unit.
3.
If fresh water is available, wash down the Sonar Head Unit and the deck cable.
Cover them while not in use to protect them against salt water spray and to
minimize corrosion.
4.
Keep the deck cable plugged into the Sonar Head Unit, or install dummy
plugs in the deck cable and Sonar Head Unit underwater connectors to keep
the them from exposure to the salt atmosphere.
5.
Apply a thin film of silicone grease, such as Dow-Corning DC4, on the rubber
portion of the Sonar Head Unit underwater connector. Avoid getting too much
grease on the metal pins of the connector; a very light coating is sufficient.
6.
Check that all of the screws on the Sonar Head Unit are tight.
4.2 Weekly and Long Term Maintenance Checklist
Perform the following maintenance steps at the end of each week’s operation and
over the long term:
1.
Turn off the power to the TIU and to the PC.
2.
Check the deck cable for abrasion and damage. If any wear spots are noticed,
clean them with fresh water, dry them, and wrap them carefully with electrical
tape, such as Scotch #88 or #33. If there is wear or fraying on any part of the
deck cable that is subject to high tension, repair or replace the cable.
3.
Inspect the Sonar Head Unit for signs of corrosion or other damage.
4.
Check the underwater connectors on the deck cable and the Sonar Head Unit.
The contacts should be clean and shiny. They can be cleaned with a rubber
pencil eraser or very fine emery paper.