Kohler 3.5CFZ, 4CZ, 5CFZ, 6.5CZ Charging, Specific Gravity Temperature Correction

Page 47

each cell should not exceed ±0.01. The battery should be charged if the specific gravity is below 1.215 at an electrolyte temperature of 80_F (26.7_C).

NOTE

Some battery testers simply have four or five beads in a tube. Draw electrolyte into the tube. Use instructions with tester; otherwise see the following chart.

°C °F

71.1160

65.6150

60.0140

54.4130

48.9120

43.3110

37.8100

32.290

26.780

21.170

15.660

10 50

4.440

-- 1.1

30

-- 6.7

20

-- 12.2

10

Correction

+ .032

 

+ .030

 

+ .028

EXAMPLE NO. 1—

+ .026

Temperature below 80°F (26.7°C)

+ .024

+ .022

Hydrometer Reading 1.250

+ .020

Acid Temperature 20°F (--6.7°C)

 

+.018

+.016 Subtract .024 Specific Gravity

+ .014 Corrected Specific Gravity is 1.226

+ .012

 

+ .010

 

+ .008

 

+ .006

EXAMPLE NO. 2—

+ .004

Temperature above 80°F (26.7°C)

+ .002

 

0

Hydrometer Reading 1.235

-- .002

Acid Temperature 100°F (37.8°C)

-- .004

Add .008 Specific Gravity

--. 006

-- .008

Corrected Specific Gravity is

 

1.243

-- .010 -- .012 -- .014 -- .016 -- .018 -- .020 -- .022 -- .024 -- .026 -- .028

Five Beads Floating— Overcharged

Four Beads Floating— Fully Charged

Three Beads Floating— A Good Charge

One or Two Beads Floating— A Low Charge

No Beads Floating— A Dead Battery

Charging

The engine battery charging circuit will provide a charge of 12 volts at up to 10 amps.

NOTE

If the battery is used while the craft is docked and the generator set is not running i.e., auxiliary lights, two-way radio, etc., the battery will be drained and may not have enough power to start the generator set later. Therefore, it may be necessary to connect a battery charger while the craft is docked and running on shore power.

1-787

The temperature correction amounts to about .004 (4 “points”) of specific gravity for each 10°F (5.5°C) change in temperature.

Figure 3-21. Specific Gravity

Temperature Correction

TP-5695 12/93

Scheduled Maintenance 3-19

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Contents 5CZ Marine Generator SetsModels 5CFZCalifornia Proposition Table of Contents Safety Precautions and Instructions Carbon monoxide can cause severe nausea Carbon monoxide Can cause severe nausea, fainting, or deathSulfuric acid in batteries can cause severe injury or Sulfuric acid in batteries Can cause severe injury or deathExplosive fuel vapors can cause severe injury or Explosive fuel vapors Can cause severe injury or deathFlying projectiles can cause severe injury or death Accidental starting Can cause severe injury or deathAccidental starting can cause severe injury or Rotating parts Can cause severe injury or deathHazardous noise Can cause loss of hearing Fire Can cause severe injury or deathSudden backfire can cause severe injury or death Sudden flash fire can cause severe injury or death246242 Pleasure Craft Reference MaterialAdditional References Commercial VesselsPart Description Kohler Part No Routine Service PartsAbbreviation Description Glossary of AbbreviationsNEC Introduction SpecificationsSpecifications General Specifications5CFZ/4CZ 5CFZ/6.5CZ GeneratorGX360EV EngineBPR4HS NGK Accessories Service Views typical Service ViewsPrestart Checks OperationController ControllerStopping StartingCircuit Protection Engine Safety Shutdown SwitchesHigh Water Temperature Shutdown Switch Remote Panels Optional Remote Panel FeaturesRemote Start and Four-Meter Panel Kit Remote Start and Four-Meter FeaturesScheduled Maintenance Or 2 Years Service ScheduleGenerator Lubrication System SpecificationsOil Change/Oil Filter Change Adding OilRemoving Oil Filter Fuel SystemFuel Pump Screen Fuel Pump ScreenCarburetor/Choke Lubrication Carburetor AdjustmentsSpark Plugs Ignition System ServiceIgnition System Carbon fouled Problem Means of Identification Possible Cause NormalGap bridged Oil fouled12. Checking Spark Plug Gap Hot coolant and steam Can cause severe injury or death Cooling Systems- Closed/Heat ExchangerFilling and Checking 14. Air-Bleed Screw Flushing and Cleaning TP-5695 12/93 Scheduled Maintenance 17. Removing Anticorrosion Zinc Anticorrosion ZincServicing Mixing Elbow Air Cleaner Mixing ElbowServicing Air Cleaner Pressure CapChecking Specific Gravity BatteryCleaning Checking Electrolyte LevelCharging 21. Specific Gravity Temperature CorrectionValve Adjustment 22. Determining Top Dead Center Lubrication Governor AdjustmentGovernor General Generator ServiceWattage Requirements Storage Procedure Not start TroubleshootingEngine Unit cranks but willOperates erratically Problem Possible Cause Corrective Action Stops suddenlyLacks power Electrical System Generator Schematic Wiring Diagram--3.5CFZ, 4CZ, 5CFZ, and 6.5CZ Wiring Diagrams4CZ DiagramsTo Load Wire Generator SetsTo Generator To Shore Set Power 60 Hz LO Neutral GroundLoad Side Line SideWithout Jumper Lead L1--L3Page Motor Loads InstallationGenerator Selection and Wattage Requirements Kilowatt Derating Appliance LoadsTypical Location and Mounting Air Requirements CFM L/min Model Combustion Cooling LocationVentilationSpace MountingFuel Supply Fuel SystemsMax. Lift ft. m In. mm Anti-Siphon ProvisionsFuel Lines Fuel Pump Lift Capabilities Fuel Consumption11. Intake Strainer Cooling Systems13. Seawater Strainer Closed/Heat Exchanger15. Closed/Heat Exchanger Cooling System Exhaust SystemsCarbon monoxide 17. Typical Above Waterline InstallationMid/Below Waterline Above WaterlineAC Voltage Connections Installation in Steel or Aluminum VesselsElectrical Systems Wiring BatteryLead Designations Pin Function Remote Start Switch ConnectionSection Dimension Drawing--3.5CFZ, 4CZ, 5CFZ, and 6.5CZStandard on 5CFZ and 6.5CZ Sound Shield--Optional on 3.5CFZ and 4CZParts Ordering Instructions For Sales & Service in U.S.A. & Canada PhoneOperating Hour Service Log Kohler CO. KOHLER, Wisconsin 53044 Phone