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8. MAINTENANCE, TROUBLESHOOTING ............................................................ 8-1
8.1 General Maintenance.................................................................................................8-1
8.2 Cleaning the Equipment.............................................................................................8-1
8.3 Hull Unit Maintenance................................................................................................8-2
8.3.1 Lubrication points, zinc plate............................................................................8-2
8.3.2 Manually raising the transducer .......................................................................8-3
8.4 Fuse Replacement.....................................................................................................8-4
8.5 Fan Replacement ......................................................................................................8-4
8.6 Troubleshooting.........................................................................................................8-5
8.7 Error Messages .........................................................................................................8-6
8.8 Diagnostic Tests.........................................................................................................8-7
8.8.1 Choosing a diagnostic test...............................................................................8-7
8.8.2 Description of diagnostic tests .........................................................................8-8
SPECIFICATIONS....................................................................................................SP-1
MENU TREE............................................................................................................ AP-1
INDEX .......................................................................................................................IN-1