Generac Power Systems 009600-5, 009734-5 owner manual Changing the Engine OIL AND/OR OIL Filter

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Section 3 – Maintenance

PRIMEPACT 66G and 66LP Recreational Vehicle Generators

3.2CHANGING THE ENGINE OIL

AND/OR OIL FILTER

•Change the engine oil after the first 25 hours of operation (after the 25-hour break-in period, see Section 2.8.5, Page 10). Thereafter, change the oil every 100 operating hours. Change the oil more frequently if operating consistently under heavy load or at high ambient temperatures.

•Change the engine oil filter after the first 25 hours of operation, and every 100 operating hours there- after.

To change the oil and/or oil filter, proceed as follows:

1. Run the engine until it is thoroughly warmed up (at least five minutes) then shut OFF the engine.

2.With the engine still warm from running, remove the oil drain plug (Figure 3.1). Drain the oil into a suitable container.

3.After the oil has drained, replace the oil drain plug. (If only changing the oil, go to step 7.)

4.With the oil drained, remove the old oil filter by turning it counterclockwise (Figure 3.2 on page 12).

5.Apply a light coating of clean engine oil to the gas- ket of the new filter.

6.Screw the new filter on by hand until its gasket lightly contacts the oil filter adapter. Then, tight- en the filter an additional 3/4 to one turn.

7.Remove the dipstick and fill crankcase with the proper type and amount of recommended oil (see Section 1.6.2, Page 6). The engine crankcase can hold about 1.4 liters. DO NOT FILL ABOVE THE “FULL” MARK.

8.Install and tighten the dipstick before operating the engine.

9.Start the engine and check for leaks.

NOTE:

Check the oil level and fill to the “FULL” mark after checking for leaks. The filter will retain some oil.

Figure 3.1 — Oil Dipstick/Fill Tube and

Location of Oil Drain Plug

OIL DIPSTICK

OIL DRAIN PLUG

Figure 3.2 — Engine Oil Filter

3.3MAINTAINING THE ENGINE AIR CLEANER

◆3.3.1 CLEANING THE FOAM PRECLEANER

Clean and re-oil the foam precleaner every three months or every 25 hours of operation, whichever occurs first. Service the foam precleaner more fre- quently if operating the generator in extremely dusty or dirty conditions. Use the following procedure (Figure 3.3):

1.Turn the knob counterclockwise to loosen.

2.Remove the cover, foam precleaner and paper fil- ter.

3.Remove the foam precleaner from the cover.

4.Wash the foam precleaner in liquid detergent and water.

5.Wrap the foam precleaner in a clean cloth and gently squeeze it dry.

6.Saturate the foam precleaner in clean engine oil. Gently squeeze it in a clean cloth to remove excess oil and to distribute oil (DO NOT TWIST).

7.Install the foam precleaner into the cover, fol- lowed by the paper filter. Tabs at edges of paper

12 Generac® Power Systems, Inc.

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Contents Power SYSTEMS, INC Authorized Service Dealer Location IntroductionTable of Contents General Hazards Electrical Hazards Generator Identification Reference Number IdentificationGenerator Applicability InstallationSafety Generator AC Connection SystemFuel Requirements SpecificationsFuel Consumption gph/lbs.ph Engine OIL RequirementsGenerator Control Panel Before Starting the Engine Optional Remote START/STOP PanelAutomatic Choke Engine Exhaust GAS Stopping the GeneratorStarting the Generator Letting the Engine StabilizeProtection Systems High Temperature SwitchLOW OIL Pressure Switch Field Boost6 25-HOUR CHECK-UP Checking the Engine OIL LevelOvervoltage Protection 5 25-HOUR BREAK-IN PeriodChanging the Engine OIL AND/OR OIL Filter Maintaining the Engine AIR CleanerCleaning the Foam Precleaner Spark Arrestor Muffler Clean AIR Intake ScreenChecking the Engine Spark Plug Weekly Cleaning the GeneratorBattery Maintenance Every SIX MonthsExercising the Generator OUT of Service ProcedureDrive Belt Wattage Reference GuidePrimepact 66G and 66LP Recreational Vehicle Generators Part General Hazards Electrical Hazards Equipment Description Purpose and Scope Installation InstructionsStandards Booklets Generator Engine Operating SpeedMajor Features and Dimensions Generator Location Location and SupportGenerator Support Suspended MountingCompartment Construction Generator CompartmentsGenerator Restraint Compartment SizeSound Insulating Materials AcousticsCompartment Floor Cutout Cooling AIR Inlet Openings Cooling and Ventilating AIRCompartment Floor Cutouts Generator AirflowCompensating for Restrictions Testing the InstallationGasoline Fuel System Parts not Included in Fuel System LP GAS Fuel SystemGenerator Fuel Supply Line Vapor Withdrawal Primary RegulatorSome Important Considerations Gaseous CarburetionExcess Flow Valve Exhaust SystemFuel Supply Lines Leakage TestsElectrical Connections Exhaust System SafetyWiring Type of Exhaust SystemBattery Installation Battery Cables 18 Transfer Switch Isolation MethodBattery Compartment Optional AccessoriesBattery Cable Connections Remote Panel ModelsBefore Initial START-UP Post Installation TestsTesting Under Load Initial StartInstallation Checklist Troubleshooting Guide Problem Cause CorrectionGenerac Power Systems, Inc Electrical Data Exploded Views and Parts Lists QTY Description To Engine BASE, Mounting To Engine BASE, Mounting To Engine Ground Item Part NO. QTY. Description Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists Carburetor Assemby CARB. V-TWIN L/P Primepact 66G and 66LP Recreational Vehicle Generators Primepact 66G and 66LP Recreational Vehicle Generators Primepact 66G and 66LP Recreational Vehicle Generators PURCHASER’S/OWNER’S Warranty Responsibilities Your Warranty Rights and ObligationsMANUFACTURER’S Emission Control System Warranty Coverage Emission Control System Warranty Emission Related Parts Include the FollowingGenerac Power SYSTEMS, INC
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