Generac 00941-4 owner manual Submersion, Operation in High Grass or Brush, Operating Precautions

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Section 2 – Operation

IMPACT-36 plus II Recreational Vehicle Generator

2.4APPLYING LOADS TO GENERATOR

When applying electrical loads to the generator, observe these guidelines:

Before applying electrical loads, let the generator stabilize and warm up for a minute or two.

DO NOT overload the generator.

2.4.1 LETTING ENGINE STABILIZE

The generator supplies correctly rated frequency and voltage only at the proper governed speed. Some elec- trical appliances may be extremely sensitive to volt- age and frequency. Incorrect frequencies and/or volt- ages can damage those appliances.

If electrical loads are applied at reduced operating speeds, such loads imposed on the engine when suf- ficient power is not available may shorten engine life. Never turn ON electrical loads until after the genera- tor engine has started and stabilized ON-speed.

2.5ATTENTION REQUIRED AFTER

SUBMERSION

If the motor home generator has been submerged in water, it must NOT be started or operated. Following any submersion in water, have an authorized Generac Service Facility thoroughly clean and dry the generator.

2.6OPERATION IN HIGH GRASS OR

BRUSH

Never operate the generator while the vehicle is parked in high grass, weeds, brush or leaves. Such materials can ignite and burn from the heat of the exhaust system. The generator exhaust system becomes extremely hot during operation and remains hot for a long time after it has shut down.

2.7OPERATING PRECAUTIONS

Never operate the motor home generator set while the vehicle is parked over dry leaves, dry grass or any other combustible substance. The generator’s exhaust system becomes extremely hot and can cause a fire if it is too close to combustible materials.

2.8FUEL REQUIREMENTS (LP UNITS)

These generators are equipped with a liquefied petro- leum (LP) gas fuel system. LP gas is usually supplied as a liquid in pressure tanks.

These generators require a “vapor withdrawal” type fuel system. This type of gaseous fuel system uses the vapors forming above the liquid fuel in the storage tank. Air temperature around the storage tank must be high enough to sustain adequate fuel vaporization. In colder climates, use of an independent heat source may be needed to be sure the fuel sufficiently vapor- izes in the storage tank.

LP gas may consist of propane, butane or a mixture of the two gases. Propane vaporizes at temperatures as low as -20°F (-29°C), but butane returns to its liq- uid state when the temperature drops below about 32°F (0°C). For that reason, a higher ratio of propane is desired in the gas mixture when temperatures drop below freezing.

FUEL CONSUMPTION (IN GALLONS PER HOUR):

 

LOAD

LP

 

 

NO

0.20

 

 

HALF

0.41

 

 

FULL

0.77

 

 

 

 

 

2.9ENGINE OIL REQUIREMENTS

The recommended oils include the following:

During summer months: SAE 30. An acceptable substitute is SAE 10W-30.

During winter months: SAE 5W30. DO NOT USE SAE 10W-40.

Crankcase and oil filter capacity is about 950ml or one (1) quart. Use no special additives. See “Maintenance” section for oil level check and fill pro- cedures.

2.10 LP GENERATOR SPECIFICATIONS

Model

Impact-36LPG plus II

Rated Maximum Continuous

 

AC Power Output

3400 watts (3.4 kW)

Rated Voltage

120 volts AC

Rated Maximum Continuous

 

Current at 120 volts

28.3 AC amperes

Phase

Single Phase

Rated AC Frequency

60 Hz.

Recommended Battery

 

Cranking Current

400 amps

Gross Weight

99 lbs

Maximum Cranking Current

250 Amps

Maximum Charging Current

2 Amps

2.11 ENGINE SPECIFICATIONS

Type of Engine

GN-220

Cooling Method

Air-cooled

Displacement

220cc

Type of Governor

Electronic

Air Cleaner

Paper element

Starter

12 volt DC electric

Ignition System

Solid state

Recommended Spark Plugs

Champion RC14YC

Spark Plug Gap

0.030 inch (0.8mm)

Generac® Power Systems, Inc. 9

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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