5. ELECTRIC SYSTEM ..................................................................... 475.1 GENERAL DESCRIPTION ................................................................................................ 475.2 BATTERIES AND CHARGING ......................................................................................... 475.3 MAIN SWITCH FOR BATTERY ....................................................................................... 485.4 ELECTRICAL DIAGRAMS ................................................................................................ 485.5 FUSES ............................................................................................................................... 486. MAINTENANCE .......................................................................... 506.1 FUEL SYSTEM ................................................................................................................... 516.2 HULL, DECK, RAILS & SUPERSTRUCTURES .................................................................. 516.2.1 Aluminium treatment M-400 maintenance & principle ........................................................ 516.2.2 Hull below water, antifouling treatment .................................................................................... 526.2.3 Anodes for prevention of galvanic corrosion ............................................................................. 536.3 COMPONENT MAINTENANCE ..................................................................................... 546.3.1 Cushions and hook-and-loop fasteners ....................................................................................... 546.3.2 Tempered glass windows ............................................................................................................... 546.3.3 Fender list ........................................................................................................................................... 556.3.4 Plastic panels ..................................................................................................................................... 556.3.5 Hinges and latches ........................................................................................................................... 556.3.6 MOB rescue & swim ladder .......................................................................................................... 556.4 WINTER STORAGE/ SPRING PREPARATIONS .............................................................. 566.4.1 Measures before winter storage................................................................................................... 566.4.2 Measures after winter storage...................................................................................................... 576.5 SPARE PARTS & SERVICE ................................................................................................ 577. FIGURES ........................................................................................ 588. ATTACHMENTS.......................................................................... 60