Disassembling And Reassembling The Towfish; Disassembling The Towfish; Figure 4-1: Loosening The Tail Cone Retaining Bolt - Klein 4900 Series Operation And Maintenance Manual

4.3

Disassembling and Reassembling the Towfish

For troubleshooting purposes and for repair, it may be required to remove and
replace major components of the towfish. Instructions are provided in the
following pages for the disassembly of the towfish and the removal of the towfish
electronics chassis and the transducers.
The following tools are recommended:
• 4-mm hex key
• 5-mm hex key
• 8-mm hex key
• Tail cone retaining bolt (to be removed from towfish during
disassembly)
• 17-mm box wrench
• Phillips screw driver
• Lint-free cloth or paper towels
• Silicone grease, such as Dow-Corning DC4
4.3.1
To disassemble the towfish:
1. Turn off the SP-III TPU or
Rack Mount TPU.
Disconnect the tow cable
2.
from the towfish and set
the towfish on a clean flat
surface such that the
carrying handles face up.
3. Using the 17-mm box
wrench, loosen the tail
cone retaining bolt, and
then unscrew it by hand
until it is free.
Disassembling and Reassembling the Towfish

Disassembling the Towfish

Figure 4-1:
Loosening the Tail Cone Retaining
Bolt
4-3