Weekly Maintenance Checklist; Long Term Maintenance Checklist - Klein 3900 Series Operation And Maintenance Manual

4-2
CHAPTER 4 Equipment Maintenance
4. Keep the tow cable plugged into the towfish, or use dummy plugs on the tow
cable and towfish to keep the connectors from exposure to the salt atmosphere.
Remember to put a thin film of silicone grease, such as Dow-Corning 4, on the
rubber portion of the underwater connector every time the towfish is
disconnected. Avoid getting too much grease on the metal pins of the connector; a
very light coating is sufficient.
5. Check that all of the screws on the towfish are tight.
4.2.2
Perform the following maintenance steps at the end of each week's operation:
Turn off the power to the TPU and to the computer.
1.
2. Check all cables 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 in any of the cables in an
area subject to high tension, repair or replace the cable.
3. Inspect and clean the system plugs and jacks.
4. Inspect the towfish for signs of corrosion or other damage.
5. Check the underwater connectors on the towfish. The contacts should be clean
and shiny. Contacts may be cleaned with a rubber pencil eraser or very fine emery
paper.
4.2.3
Perform the following maintenance steps at six month intervals, or more
frequently when continued long term usage is occurring.
Turn off the power to the TPU and to the computer.
1.
2. Thoroughly clean the TPU, cables and towing equipment. Clean the top and
outside surfaces of the TPU using a cloth dampened with fresh water. Use a small
amount of detergent if necessary. Do not let dirt and salt deposits accumulate on
the TPU cabinet.
3. Replace the AC fuses in the TPU as preventive maintenance. Fuses will
sometimes fatigue after long term use or operation.
4. Remove the screws securing the nose cone of the towfish and check that the
connectors are firmly seated. Use a thin film of silicone grease on all external
connectors. Make sure the transducer leads are free from cuts or abrasion.
5. Follow the instructions in the manufacturer's manual for any necessary cleaning
and maintenance of the computer.
Series 3900 Sonar System Operations and Maintenance Manual

Weekly Maintenance Checklist

Long Term Maintenance Checklist

11214510, Rev. 02