Generac Power Systems 004988-2 owner manual Maintenance Level

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Section 4 — Maintenance

Guardian Liquid-cooled 27 kW and 30 kW Generators

Maintenance

Level 1

 

Level 2

 

Level 3

 

Level 4

 

Tasks

Recom-

Task

Required

Task

Required

Task

 

Task

 

mended

Comp.

to be done

Comp.

to be done

Comp.

Required

Comp.

 

to be done

(Date-

3 months/

(Date-

Semi-

(Date-

to be done

(Date-

 

monthly/

Initials)

Break-in

Initials)

annually/

Initials)

Annually/

Initials)

 

10 hrs.

 

30 hrs.

 

50 hrs.

 

100 hrs.

 

13.Initiate an automatic start and transfer of the unit to site load and exercise it for at least 1 hour looking for

leaks, loose connections or components, and abnormal operating conditions. Correct as necessary.

14.Start and exercise the unit at full rated load (use a

load bank if the site load is not enough) for at least 2 hours looking for leaks, loose connections or components, and abnormal operating conditions. Correct as necessary.

15. Change the engine oil.

16.Replace the engine oil filter(s).

17.Replace the engine air filter(s).

18.Replace the engine fuel filter(s) on diesel engine driven units and re-prime the fuel system.

19.Check the engine spark plugs on gas engine driven units. Clean and re-gap or replace as necessary.

20.Perform a 5 minute no-load operational run of the unit looking for any post service problems.

21.Return the unit to standby

setup for operation when required.

22 Generac® Power Systems, Inc.

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Contents Liquid-cooled, Prepackaged Standby Generators Authorized Service Dealer Location ‹ Operation and Maintenance‹ HOW to Obtain Service IntroductionTable of Contents General Hazards Electrical Hazards Transfer Switch GeneratorAutomatic System Operation Generator AC Connection Systems‹ 1.7.2 High Coolant Temperature Switch ‹ 1.7.1 LOW OIL Pressure Switch‹ 1.7.3 LOW Coolant Level Switch Engine Protective DevicesUnpacking Lifting the GeneratorSpecifications Reconfiguring the Fuel System‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine SpecificationsTorque Specifications Before InstallationEngine OIL Recommendations Coolant RecommendationsGenerator Mounting Support Basic Standby Electric System‹ 2.1.2 Other Published Standards Transfer Switch Signal Connections Emergency Circuit Isolation MethodTotal Circuit Isolation Method Grounding the GeneratorBattery Installation Preparation Before START-UP‹ 2.9.2 GTS-TYPE ATS Using a Standard GTS Transfer Switch ‹ 3.2.2 Fault Indicator LED ‹ 3.2.1 AUTO/OFF/MANUAL Switch‹ 3.2.5 SET Exercise Time Switch Control Console ComponentsManual Transfer START-UP Engine Governor Adjustments Retransfer and ShutdownAutomatic Operation Weekly Exercise CycleCooling System Overload Protection for Engine DC Electrical SystemChecking Fluid Levels ‹ 4.5.11 Changing the Engine AIR Cleaner ‹ 4.5.10 Changing Engine OIL‹ 4.5.12 Spark Plugs Miscellaneous Maintenance ‹ 4.6.1 Cleaning the Generator‹ 4.6.2 Battery ‹ 4.6.3 Battery Maintenance‹ 4.6.4 Battery Replacement Periodic Replacement PartsScheduled Maintenance Service Maintenance Interval InformationLevel Maintenance Level Troubleshooting Points Problem Cause CorrectionGuardian Liquid-cooled 27 kW and 30 kW Generators Installation Diagram Customer Connection PCB J2 BCW LOS WLS HCT Starter Carrier Bolt Boot Battery Cable Battery Post Cover BaclkBattery Post Cover RED + Hold Down Battery32 18 Assy GRD Wire 99HSB Assembly BASE-DOOR Ground WireIntake Duct HSB Duct Discharge RH FrontGenerac Power Systems, Inc Assy 2A 12V UL Battery Control BOX HSBDecal AVR Cover Cover Front Panel HSB61 24 Wire SET 3.0L Ford not Not SHOWN-USED to Hold OIL Drain AssemblyCoil Ignition 3.0L Ford Bracket DC ALT 3.0L FordFrame Tank Coolant Recovery Radiator R-IN,L-OUTVenturi 3.0L Ford HSB Side Support Radiator HSBTo B Weldment Mounting Base Flange Fuel InletAssy Regulator 3.0L NG or LPV Washer Flat 5/16 ZincLocktight Rotor 390 15KW 1P Direct HSB 2.5L Ford Rotor 390 20KW 1P Direct HSB 2.5L FordRotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 39030AD1 HSB TecumMUFFLER, 3.0L Ford Gasket Exhaust RingExhaust Blanket 750MM Mufflr Strap 6IN DIAElement AIR Cleaner Cover AIR CleanerTube AIR Intake 3.0L Ford Washer Flat M5Warranty Schedule