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CHAPTER 4: E
This chapter provides instructions for maintaining the Series 4900 Sonar System
on a daily, weekly and long term basis. In addition, instructions are provided for
disassembling and reassembling the towfish and removing and installing the
transducers.
4.1
Maintenance General Comments
Equipment used at sea is subjected to severe environmental and handling
conditions. While the Series 4900 Sonar System is designed to operate in such
conditions, a certain amount of routine maintenance is necessary to ensure trouble
free, long term operation.
Keep a maintenance log. This provides assistance in tracking what has or has not
been done with the system. A log is useful when tracking problems, if they do
occur, and is especially important if more than one TPU, laptop computer or
towfish is used in a large survey operation. Inventory the system, related spares
and accessories carefully. Record the serial numbers of the major components,
such as the SP-III TPU or Rack Mount TPU, the laptop computer or the SonarPro
Workstation, and the towfish. Store the shipping boxes in a safe place so they can
be reused when needed. A small amount of regular maintenance and care makes
the critical difference in a successful field operation. The following pages contain
the recommended routine checking and maintenance schedules for a daily, weekly,
and long term basis.
4.2
Maintenance Checklists
4.2.1
Perform the following maintenance steps at the end of each day's operation:
1.
Turn off the power to the SP-III TPU and the laptop computer, or the Rack
Mount TPU and the SonarPro Workstation.
Verify that all cables and connectors are secure and tightened.
2.
If fresh water is available, wash down the towfish and the towing equipment.
3.
Cover them while not in use to protect against salt water spray and to
minimize corrosion.
QUIPMENT
Daily Maintenance Checklist
M
AINTENANCE
4-1
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