Klein Marine Systems, Inc. HydroChart 5000, Operation And Maintenance Manual

Page: 57 / 82

Disassembling and Reassembling the Sonar Head Unit
4-3
4.3 Disassembling and Reassembling the Sonar
Head Unit
For troubleshooting purposes and for repair, it may be required to remove and
replace major components of the Sonar Head Unit. Instructions are provided in the
following pages for the disassembly of the Sonar Head Unit and the removal of the
sonar electronics chassis.
The following tools are recommended:
• Cordless drill
• Phillips head driver bit
• 5-mm hex key
• 4-mm hex key
• Phillips screw driver
• 7-inch, 1/2 x 13 threaded rod
4.3.1 Disassembling
the Sonar Head
Unit
To disassemble the Sonar Head
Unit:
1.
Turn off the TPU.
2. Disconnect the deck cable
from the Sonar Head Unit
and set it on a clean flat
surface such that the
carrying handles face up.
3.
Using the cordless drill
with the Phillips head
driver bit, remove the
sixteen M6 x 12 mm
Phillips head screws that
secure the top of the fairing to the frame.
Figure 4-1:
Removing the Phillips Head Screws
from the Top of the Fairing
Fairing