Baja Marine 275 manual Electrical Systems, Direct Current DC, Batteries, Ignition Protection

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Section 6 • Electrical Systems

1.Electrical Systems

Direct Current (DC)

The 12 volt direct current (DC) electrical system (similar to that in your car or truck) derives its power from the battery. An engine-driven alternator keeps the battery in a charged condition. The battery voltage is indicated by the voltmeter on the helm panel. The negative terminal of the battery is attached to the grounding studs of the engine.

Ask your dealer for a careful analysis of DC power needs on your boat. It may be necessary to add batteries or auxiliary charging methods to supply adequate power for any additional accessories you wish to add.

A.Batteries

!DANGER

DO NOT USE JUMPER CABLES IN THE ENGINE COMPARTMENT.

They can cause an explosion from sparks.

!DANGER

A battery will explode if a flame or spark ignites the free hydrogen given off during charging.

Never use an open flame or strike sparks in the battery area.

The battery installed in your boat has been selected for its ability to furnish starting power based on engine starting requirements, as well as its ability to power the DC accessories attached to the electrical system. Your Engine Operator's Manual indicates the recommended battery for the engine installed in your boat.

!CAUTION

To prevent arcing or damage to the alternator, always disconnect battery cables before doing any work on the engine's electrical system.

To remove the battery cables:

1.Turn off all items drawing power from the battery.

2.Remove the negative cable first, then the positive cable. To replace the cables, first replace the positive cable, then the negative.

Battery Maintenance

Check the fluid level in the cells approximately every 4 weeks, and weekly in summer and hot zones.

The fluid level must be between the lower and upper markings.

Replenish only with distilled water. Do not use metal funnels.

Coat battery terminal clamps with silicone grease. Keep batteries clean and dry.

Battery life is shortened if it is drained to zero charge before recharging. It is recommended that a battery not be discharged more than 50 percent. If the battery does become run down, recharge it as soon as possible.

Running the engine to recharge the battery may not be effective. The alternator only creates charging power at higher engine speeds, so simply idling or trolling will not generate enough power to recharge the battery.

If you need to charge a battery, only use a battery charger designed to charge automotive/marine batteries. Use charger only when batteries are disconnected from the boat's electrical circuit. Follow the charger instructions.

If your boat will not be used for several weeks or more, remove the batteries from the boat and connect them to a charger.

B.Ignition Protection

All electrical components in the engine compartment must be ignition-protected to avoid the possibility of creating sparks in a gasoline environment.

275 Performance®

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Contents Performance Baja MarineFor information call 1-865-971-6270 or fax Welcome This page intentionally left blank Introduction Manufacturer’s Certification Service, Parts and Repair for Your BoatHull Identification Number HIN About Your Express Limited Warranty Iii Ignition Protection Breakers and/or Fuses Speed changes you. TM Safety Labels SafetyCarbon Monoxide Legally Mandated Minimum Required EquipmentFire Extinguishing System Carbon Monoxide Monitor Lifesaving Equipment Impaired Operation Additional Recommended Equipment for Safe OperationLoad Capacity Power CapacityPropellers United StatesMaintain Control StabilityGeneral Considerations Chart Your CourseWeather Skiing Water SportsSwimming General Emergency SituationsWater Rescue Medical EmergencyFire Flooding, Swamping and CapsizingCollisions and Leaking Safety HotlinesGrounding Propulsion, Control or Steering FailureFuel and Oil Spillage International RequirementsEnvironmental Considerations Excessive Noise Waste DisposalWake/Wash Nautical Terms Key to Symbols on Controls & Prints Baja Marine Corp This Page Intentionally Left Blank Docking /Lifting /Trailering Passenger Locations General Boat Arrangement2 Hull Propulsion System Basic Boat Dimensions and Clearances MetricGeneral Deck Layout FIG General Deck LayoutGear Shift and Throttle Control Power Trim Unit and GaugeDescription of Major Controls Trim Tabs Trailer SwitchEngine Alarm System Ignition Shutdown SwitchImportant Gauges Tachometer and Hour MeterNavigation and Anchor Lights Oil Pressure, Water Temperature, Voltmeter and Fuel GaugesPre-Launch, Launch and Post- Launch Checklist Using Your BoatFueling the Boat Trailer Launching and LoadingPersonal Flotation Devices BoardingStarting the Engine Passenger Instruction and LocationStopping the Engine Shifting to Drive the BoatHydraulic Steering Steering SystemsPower Steering System Power SteeringThis page intentionally left blank Bilge Bilge & Underwater GearFuel & Oil Spillage Drain PlugEngines and Stern Drive Maintenance and ServiceBilge Blowers Vibration and CausesImpact to Stern Drive Propeller Removal and InstallationGear case Anti-Siphon Valve Inboard/Outboard Engine Only Fuel SystemFuel System Static Electricity and the Fuel System Fueling PrecautionsBefore and During Fueling Checklist After Fueling Checklist This page intentionally left blank Electrical Systems Electrical SystemsDirect Current DC BatteriesFuse Panel Electrolytic Corrosion & Zinc AnodesBreakers and/or Fuses Marine Electronic Cathodic Anti-corrosion System Mercathode Ignition Switch Drive Pump Switch Panel Wire Information FIG Switch Panel Wire Information FIG Wire Schematic FIG Gauge Panel Electrical Information FIG Options & Accessories Locations Options & AccessoriesCanvas Automatic Fire Extinguisher System OptionFire Extinguisher Port Swim Platform w/ Ladder Optional Canvas Care and MaintenanceDepth Finder Optional HornHead Systems Stereo SystemPortable Self-Contained Head Requirements for OperatorsPortable Head with Pump-Out Exhaust SystemsThis page intentionally left blank Interval Required Inspection, Service MaintenanceSummary Guide for Inspection, Service and Maintenance Interval Summary Guide For Inspection, Service and MaintenanceUseful Service Information Bilge Area Inspection, Service and Maintenance ProtocolBatteryies Winterization Checklist for Boats Stored on LandTopside and Supplies Boat StorageFuel Systems Fitting Out After StorageFuel System MiscellaneousSecurity Considerations Power Steering System MaintenanceBoat Systems Quick Reference ChecklistBoarding the Boat General Starting the Engine Returning to Port General Quick Reference Checklist cont’d Departing GeneralIf the Engine Does Not Start Quick Reference Checklist cont’dSecuring the Boat After Market Equipment Checklist Maintenance Log Maintenance Log Cont’d Care & Refinishing Paint Cleaning Agents & Other SubstancesStains & Scratches Fiberglass & GelcoatTopside Areas Permanently Moored or Docked BoatsAcrylic Plastic Sheeting Plastic Glass Canvas and Clear VinylInterior Upholstery Fabric Exterior Upholstery FabricThis Page Intentionally Left Blank Index Index Performance