Mercury 520 Bravo Sterndrive - Warranty Coverage and Exclusions for Mercury Racing Sterndrive Products

Maintenance
Service Responsibilities.................................................................................... 45
Replacement Service Parts.............................................................................. 45
Do‑It‑Yourself Maintenance Suggestions......................................................... 46
Servicing High‑Horsepower Engines................................................................ 47
Engine Maintenance Charts............................................................................. 47
Bravo Drive Maintenance Charts...................................................................... 49
Checking Fluid Levels.......................................................................................51
Closed Cooling System.................................................................................... 55
Changing Fluids................................................................................................ 58
Lubrication........................................................................................................ 64
Propellers..........................................................................................................66
Flushing the Power Package............................................................................ 69
Cleaning Seawater (Raw Water) Section of Oil Cooler.................................... 73
Changing Positive Crankcase Ventilation Valve............................................... 74
Cleaning the Flame Arrestor............................................................................. 74
Serpentine Drive Belt........................................................................................ 76
Water‑Separating Fuel Filter.............................................................................78
Corrosion and Corrosion Protection................................................................. 81
Battery.............................................................................................................. 88
Bottom of Boat.................................................................................................. 88
Inspection and Maintenance............................................................................. 89
Attention Required After Submersion............................................................... 89
Cold Weather or Extended Storage
Draining the Seawater System......................................................................... 90
Drain System Identification............................................................................... 90
Air‑Actuated Single‑Point Drain System........................................................... 92
Manual Drain System....................................................................................... 98
Draining Water from the Cool Fuel Module.................................................... 101
Battery Storage............................................................................................... 101
Recommissioning the Power Package........................................................... 101
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