5-86
4205 SIDE SCAN SYSTEM 0021769_REV_D
Figure 5-4: 4205 Towfish
To recover the Towfish:
1. Slowly retrieve the tow cable until the towfish is just below the surface.
2. Click the Towfish Control Tab (4205 MPMT) or Sidescan Control Tab (4205 Tri-Frequency) and
deselect the High Sonar On and Low Sonar On checkboxes, shown in F
IGURE 5-1 AND FIGURE 5-2.
3. Slow the survey vessel speed to under two knots.
NOTE: If practical, put the survey vessel in neutral while the Towfish is
brought on board.
4. Recover the towfish from the water and carefully lower it on deck.
5. Turn off the Topside Processor.
6. Disconnect the tow cable from the 6-pin male tow cable connector on the towfish. Inspect the
connector; clean and lubricate, as necessary.
7. Install the 6-pin female dummy plug on the 6-pin male bulkhead connector on the towfish.
8. Refer to the M
AINTENANCE section of this manual for instructions on how to clean and inspect the
Towfish, the tow cable, and the underwater connectors after use.
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