Generac 00941-4 owner manual Post Installation Tests, Before Initial Start UP, Testing Under Load

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Section 3 – Post-installation Start-up Checks

IMPACT-36 plus II Recreational Vehicle Generator

CHECKS

3.1POST INSTALLATION TESTS

The air cooled Impact-36 plus II generator set was factory tested and adjusted using gasoline as fuel.The air cooled Impact-34 plus II generator set was factory tested and adjusted using LP gas as fuel. It is not required to adjust the unit any further except under special circumstances.

Do not make any unnecessary adjustments.

!Factory settings are correct for most applica- tions. When making adjustments, however, be careful to avoid overspeeding the engine.

3.2BEFORE INITIAL START UP

Before starting, complete the following:

1.Check engine crankcase oil level and, if neces- sary, fill to dipstick FULL mark with the recom- mended oil. Do not fill above FULL mark.

2.Check the fuel supply. Gas fuel lines must have been properly purged and leak tested in accor- dance with applicable fuel codes. All fuel shutoff valves in the fuel supply lines must be open.

DANGER

If an LP (propane) gas fuel system has been installed, it must have been properly tested for leaks before operating the system in com- pliance with ANSI A119.2/NFPA 501C. No leak- age is permitted. Be sure no gaseous fuel vapors enter the vehicle interior.

3.3INITIAL START

When absolutely certain that the unit has been prop- erly installed and prepared for use, start the engine as follows:

1.Turn off all electrical loads. Do this by setting the generator main circuit breaker to its “OFF” or “OPEN” position.

2.Refer to the Owner's Manual shipped with unit for cranking and starting instructions. The engine may require more cranking for initial starting since the fuel lines have to be primed (Use of the Primer Switch on gasoline units will shorten this time).

3.Let the engine warm up for about five minutes to allow internal temperatures to stabilize.

4.Carefully inspect the engine-generator for fuel, oil and exhaust system leaks. Before proceeding to the next step, correct any leakage immediately.

5.When all tests and adjustments at no-load are completed, apply electrical loads and check for proper operation under load. See “Testing Under Load”, Section 3.4. Run the unit at least 30 min- utes with loads applied.

6.Turn off all electrical loads by setting the genera- tor main circuit breaker to “OFF” or “OPEN.”

7.Let the unit run at no-load for a few minutes to stabilize internal engine-generator temperatures. Then, shut down the engine.

IMPORTANT: THE GENERATOR SET WAS THOR- OUGHLY TESTED AND ADJUSTED AT THE FAC- TORY BEFORE SHIPPING. NO ADDITIONAL ADJUSTMENT SHOULD BE NECESSARY. ONLY QUALIFIED SERVICE TECHNICIANS WHO HAVE BEEN TRAINED SHOULD PERFORM ADJUST- MENTS OUTLINED IN THIS MANUAL.

3.4TESTING UNDER LOAD

Apply electrical loads equal to about 75-100% of the unit's rated wattage/amperage capacity.

Let the unit run at least 30 minutes with load applied. During this part of the test, check that the unit is not running excessively hot and that adequate cooling air flow is available. Do not allow the unit to overheat during prolonged operation.

NOTE:

The generator engine is equipped with a high tem- perature switch. The switch has normally-open (N.O.) contacts. When the temperature is too high, switch contacts close, and engine shuts down automatically.

IMPORTANT: GENERAC RECOMMENDS THAT THE GENERATOR IS TESTED FOR ADEQUATE COOLING.

Generac® Power Systems, Inc. 33

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Contents Air-cooled Recreational Vehicle Generator Introduction Authorized Service Dealer LocationTable of Contents General Hazards Electrical Hazards Generator Identification General Information Generator Control Panel SafetyGenerator Applicability Before Starting the Engine Engine Protective DevicesEngine Exhaust GAS Starting the GeneratorStopping the Generator Cooling and Ventilating AIRSubmersion Operating PrecautionsLP Generator Specifications Engine SpecificationsChange OIL Filter MaintenanceChecking Engine OIL Level Change Engine OILEngine Spark Plug Engine AIR CleanerClean AIR Intake Screen Cleaning the GeneratorAdjusting Valve Clearance Service and AdjustmentsBattery Adjusting the CarburetorExercising the Generator OUT of Service ProtectionReturn Unit to Service After Storage IMPACT-36 plus II Recreational Vehicle Generator Part General Hazards Fire Hazards Engine Generator Operating Speed Purpose and Scope ManualStandards Booklets Equipment DescriptionSuspended Mounting Location and SupportGenerator Location Generator SupportGenerator Restraint Generator CompartmentsCompartment Construction Compartment SizeCompartment Floor Cutouts Sound Insulating MaterialsGenerator AIR Flow Cooling and Ventilating AIRAcoustics 11 Suspended Mount Inlet Door Cooling AIR Inlet OpeningsParts not Included in Fuel System Testing the InstallationPropane GAS Fuel System Compensating for RestrictionsGaseous Carburetion Some Important ConsiderationsVapor Withdrawal Primary RegulatorLeakage Tests Exhaust SystemFuel Supply Lines Excess Flow ValveType of Exhaust System Exhaust System SafetyElectrical Connections Generator AC Connection System Isolating Different Power SourcesPower Supply Cord 20 Transfer Switch Isolation Method Sensing Harness Battery InstallationRecommended Battery Battery CablesRemote PLUG-IN Receptacle Optional AccessoriesBattery Cable Connections Battery CompartmentInitial Start Post Installation TestsTesting Under Load Before Initial Start UPInstallation Checklist Problem Cause Correction Troubleshooting GuideElectrical Data Electrical Data Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists PLATE, Divider Exploded Views and Parts Lists ASSY, Connecting ROD 85 66 19 8 ENGINE, Long Block CASTING, Twin Regulator Installation Diagram California and Federal Emission Control Warranty Statement Emission Control System Warranty Warranty Schedule CONSUMER/PERSONAL Applications
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