Kohler 3.5CFZ, 4CZ, 5CFZ, 6.5CZ installation manual Lubrication, Governor Adjustment

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Governor

The gear-driven centrifugal type governor serves to keep engine speed constant by automatically adjusting the amount of fuel supplied to the engine according to changes in load.

Lubrication

Lubricate governor linkage at the specified interval using white lithium grease or lubriplate.

Governor Adjustment

The gear-driven centrifugal type governor serves to keep engine speed constant by automatically adjusting the amount of fuel supplied to the engine according to changes in load. No regular service is required on the unit. The governor is adjusted during run-in at the factory and further adjustment should not be needed unless greatly varying load conditions are encountered or if poor governor control develops after extended usage. See Figure 3-25 for correct placement of governor linkage (models may vary).

60 Hz generator sets are designed to operate at 60-63 Hz, 3600 rpm under full load and 3780 rpm under no load. 50 Hz generator sets are designed to operate at 50--52.5 Hz, 3000 rpm under full load and 3150 rpm under no load. To check speed, use hand tachometer or frequency meter. Use the following procedure to adjust governor.

1.Loosen governor arm locking nut. See Figure 3-24.

2.Move the governor arm end fully in the direction shown (toward the electric choke solenoid) and readjust governor screw. Tighten locking nut.

3.Start engine and run to reach operating temperature.

4.Apply full load and turn engine speed adjustment screw to 3600 rpm for 60 Hz generator set, 3000 rpm for 50 Hz set.

5.Check regulation by applying and removing full load.

6.STOP generator set.

1

3

2

		1-829
1.	Mixture Screw	3. Governor Adjustment
2.	Idle Speed Screw

Figure 3-24. Governor Adjustment

Locknut	Carburetor
	Carburetor	Throttle Rod/Spring
	Pivot Point	Throttle Rod/Spring
	Pivot Point
Governor	Hole Nearest	Governor Cross Shaft
Governor	to Pivot Point	Governor Cross Shaft
Adjustment
Screw
	Governor Rod	Governor Spring	Outer Hole
	Governor Rod

Figure 3-25. Governor Linkage

3-22 Scheduled Maintenance

TP-5695 12/93

Image 50

Contents 5CFZ Marine Generator SetsModels 5CZCalifornia Proposition Table of Contents Safety Precautions and Instructions Carbon monoxide Can cause severe nausea, fainting, or death Carbon monoxide can cause severe nauseaSulfuric acid in batteries Can cause severe injury or death Sulfuric acid in batteries can cause severe injury orExplosive fuel vapors Can cause severe injury or death Explosive fuel vapors can cause severe injury orRotating parts Can cause severe injury or death Accidental starting Can cause severe injury or deathAccidental starting can cause severe injury or Flying projectiles can cause severe injury or deathSudden flash fire can cause severe injury or death Fire Can cause severe injury or deathSudden backfire can cause severe injury or death Hazardous noise Can cause loss of hearing246242 Reference Material Pleasure CraftCommercial Vessels Additional ReferencesRoutine Service Parts Part Description Kohler Part NoGlossary of Abbreviations Abbreviation DescriptionNEC General Specifications SpecificationsSpecifications IntroductionGenerator 5CFZ/4CZ 5CFZ/6.5CZEngine GX360EVBPR4HS NGK Accessories Service Views Service Views typicalOperation Prestart ChecksController ControllerStarting StoppingEngine Safety Shutdown Switches Circuit ProtectionHigh Water Temperature Shutdown Switch Remote Panel Features Remote Panels OptionalRemote Start and Four-Meter Features Remote Start and Four-Meter Panel KitScheduled Maintenance Service Schedule Or 2 YearsGenerator Specifications Lubrication SystemAdding Oil Oil Change/Oil Filter ChangeFuel System Removing Oil FilterFuel Pump Screen Fuel Pump ScreenCarburetor Adjustments Carburetor/Choke LubricationSpark Plugs Ignition System ServiceIgnition System Oil fouled Problem Means of Identification Possible Cause NormalGap bridged 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 Anticorrosion Zinc 17. Removing Anticorrosion ZincPressure Cap Air Cleaner Mixing ElbowServicing Air Cleaner Servicing Mixing ElbowChecking Electrolyte Level BatteryCleaning Checking Specific Gravity21. Specific Gravity Temperature Correction ChargingValve Adjustment 22. Determining Top Dead Center Lubrication Governor AdjustmentGovernor General Generator ServiceWattage Requirements Storage Procedure Unit cranks but will TroubleshootingEngine Not startOperates erratically Problem Possible Cause Corrective Action Stops suddenlyLacks power Electrical System Generator Wiring Diagrams Schematic Wiring Diagram--3.5CFZ, 4CZ, 5CFZ, and 6.5CZDiagrams 4CZTo Load Wire Generator SetsTo Generator To Shore Set Power Line Side LO Neutral GroundLoad Side 60 HzL1--L3 Without Jumper LeadPage Motor Loads InstallationGenerator Selection and Wattage Requirements Appliance Loads Kilowatt DeratingTypical Location and Mounting Mounting LocationVentilationSpace Air Requirements CFM L/min Model Combustion CoolingFuel Systems Fuel SupplyFuel Pump Lift Capabilities Fuel Consumption Anti-Siphon ProvisionsFuel Lines Max. Lift ft. m In. mmCooling Systems 11. Intake StrainerClosed/Heat Exchanger 13. Seawater StrainerExhaust Systems 15. Closed/Heat Exchanger Cooling System17. Typical Above Waterline Installation Carbon monoxideAbove Waterline Mid/Below WaterlineAC Voltage Connections Installation in Steel or Aluminum VesselsElectrical Systems Battery WiringRemote Start Switch Connection Lead Designations Pin FunctionDimension Drawing--3.5CFZ, 4CZ, 5CFZ, and 6.5CZ SectionSound Shield--Optional on 3.5CFZ and 4CZ Standard on 5CFZ and 6.5CZFor Sales & Service in U.S.A. & Canada Phone Parts Ordering InstructionsOperating Hour Service Log Kohler CO. KOHLER, Wisconsin 53044 Phone