ATLAS North America Proprietary
Sea Scan® ARC Explorer™ Manual
1 of 1
Page: 33
Issue: 4.2.1
2SFT1-0001
Manual
Figure 46: Install the Lower Rear Depressor Wing Tow Rail Screw
·
Using a 5/32" hex key driver reinstall the removed transducer, for details refer to the Transducers
section of the manual.
·
Install four large fins into the tail assembly. Two additional large fins were provided with your
depressor kit.
·
Your depressor is ready to use. Follow the tow fish set up procedures to finish preparing your tow
fish for deployment. Prior to deploying the tow fish read over the depressor operation section of
the manual.
4.2.6.1.1.4 Depressor Adjustment
The depressor has been configured to operate in conjunction with the keel weight for maximum
depth performance and stability. The depressor and keel weight are capable of applying 60lbs to
over 150lbs of weight on the cable dependent on speed. The modularity of the ARC Explorer tow
fish design will allow you to reconfigure the hardware to best meet your operational weight and
depth requirements. Please refer to the following procedures for reconfiguring your tow fish.
·
The best method for reducing the weight on the cable is to remove the depressor and operate with
just the keel weight. This will eliminate the more dynamic loading. This reduces the cable load to
about 40lbs. Make sure to adjust the tow point for proper balance in water after removing the
depressor.
·
The depressor angle can also be adjusted to reduce the weight on the cable. This is
accomplished by replacing the angle adjustment brackets on the depressor with a smaller size
one. Angle adjustment brackets are available for purchase as an optional kit. Follow these
procedures for adjusting the depressor angle.
·
Using a 5/32" hex key driver remove the lower and upper rear depressor wing tow rail screws.
