Kohler 3.5CFZ, 4CZ, 5CFZ, 6.5CZ installation manual Generator, 5CFZ/4CZ 5CFZ/6.5CZ

Page 17

Generator

	3.5CFZ		5CFZ
Rated kW	3.5		5
Frequency--Hz	50		50
Rated Voltage	110 Volt, 2&3 Wire, Single Phase or		110/220 Volt, 3 Wire, Single Phase
Rated Amps (110 Volt)	31.8		45.5
Rated Amps (220 Volt)	15.9		22.7
Rotor Resistance (cold) (ohms)	4--5		4--5
Stator Resistance (cold) (ohms)*
Leads:
1--2, 3--4	0.8		0.8
55--66	4.2		4.2
B1--B2	0.08		0.08
	4CZ		6.5CZ
Rated kW	4		6.5
Frequency--Hz	60		60
Rated Voltage	120 Volt, 2&3 Wire, Single Phase or		120/240 Volt, 3 Wire, Single Phase
Rated Amps (120 Volt)	33.3		54.2
Rated Amps (240 Volt)	16.7		27.1
Rotor Resistance (cold) (ohms)	3--4		4--5
Stator Resistance (cold) (ohms)*
Leads:
1--2, 3--4	0.06		0.04
55--66	1.9		2.4
B1--B2	0.09		0.06
	3.5CFZ/4CZ		5CFZ/6.5CZ
Generator Type	Two-Pole,		Rotating Field
Voltage Regulation		±5%
Frequency Regulation		±5%
Angular Operation (Max.)		20°Continuous
(in all directions)		20°Continuous
(in all directions)
Excitation Method	Brushless, Exciter Winding/Capacitor
Coupling Type	Tapered Shaft--Thru-Bolt
Stator Bolt Torque in. lbs. (Nm)		260 (29)
Thru-Bolt Torque ft. lbs. (Nm)		37 (50)
Number of Output Leads		4, Reconnectable
Insulation (Rotor and Stator)	Class F, Epoxy Varnish, Vacuum Impregnated
Winding Material		Copper
Bearing, Number and Type		1, Replaceable Ball
Circuit Protection:
Controller	Replaceable 10-Amp Fuse
Battery Charging	Replaceable 10-Amp Fuse
AC Circuit Breakers		Optional

* Most ohmmeters will not give accurate readings when measuring less than 1 ohm. The stator can be considered good if a low resistance reading (continuity) is obtained and there is no evidence of shorted windings (discoloration). Do not confuse a low resistance reading with a reading indicating a shorted winding.

1-2 Specifications

TP-5695 12/93

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Contents Models Marine Generator Sets5CFZ 5CZCalifornia 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 deathAccidental starting can cause severe injury or Accidental starting Can cause severe injury or deathRotating parts Can cause severe injury or death Flying projectiles can cause severe injury or deathSudden backfire can cause severe injury or death Fire Can cause severe injury or deathSudden flash fire can cause severe injury or death Hazardous noise Can cause loss of hearing246242 Pleasure Craft Reference MaterialAdditional References Commercial VesselsPart Description Kohler Part No Routine Service PartsAbbreviation Description Glossary of AbbreviationsNEC Specifications SpecificationsGeneral Specifications Introduction5CFZ/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 Gap bridged Problem Means of Identification Possible Cause NormalOil fouled Carbon 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 Air Cleaner Air Cleaner Mixing ElbowPressure Cap Servicing Mixing ElbowCleaning BatteryChecking Electrolyte Level Checking Specific GravityCharging 21. Specific Gravity Temperature CorrectionValve Adjustment 22. Determining Top Dead Center Lubrication Governor AdjustmentGovernor General Generator ServiceWattage Requirements Storage Procedure Engine TroubleshootingUnit cranks but will Not startOperates 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 Load Side LO Neutral GroundLine Side 60 HzWithout Jumper Lead L1--L3Page Motor Loads InstallationGenerator Selection and Wattage Requirements Kilowatt Derating Appliance LoadsTypical Location and Mounting Space LocationVentilationMounting Air Requirements CFM L/min Model Combustion CoolingFuel Supply Fuel SystemsFuel Lines Anti-Siphon ProvisionsFuel Pump Lift Capabilities Fuel Consumption Max. Lift ft. m In. mm11. 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