Guardian Technologies 004988-4 owner manual Overload Protection for Engine DC Electrical System

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Section 4 — Maintenance

Liquid-cooled 30 kW Generators

4.3OVERLOAD PROTECTION FOR

ENGINE DC ELECTRICAL SYSTEM

Engine cranking, start up and running are controlled by a solid state Engine Controller circuit board. Battery voltage is delivered to that circuit board via a 15 amp fuse. These overcurrent protection devices will open if the circuit is overloaded.

If a circuit breaker opens or a fuse element melts, find the cause of the overload before resetting the circuit breaker or replacing the fuse.

4.4CHECKING FLUID LEVELS

‹4.4.1 CHECK ENGINE OIL

Check engine crankcase oil level (Figure 4.1) at least every 20 hours of operation, or prior to use.

•Remove oil dipstick and wipe dry with a clean, lint- free cloth.

•Install oil dipstick, then remove again.

•Oil should be between FULL and ADD marks.

•If oil level is below the dipstick ADD mark, remove oil fill cap. Add the recommended oil to bring oil level up to the FULL mark. DO NOT FILL ABOVE THE “FULL” MARK. See Section 1.14 for recom- mended oils.

Figure 4.1 - Oil Dipstick and Oil Fill Cap

‹4.4.3 ENGINE COOLANT

Check coolant level in coolant recovery bottle. See Specifications, Section 1.10.

•Add recommended coolant mixture as necessary.

•Periodically remove radiator pressure cap to make sure the coolant recovery system is functioning properly. Coolant should be at bottom of radiator filler neck. If coolant level is low, inspect gasket in radiator pressure cap. Replace cap, if necessary. To have pressure cap tested, contact an Authorized Service Dealer. Inspect cooling system and coolant recovery system for leaks.

4.5MAINTENANCE OWNER/ OPERATOR CAN PERFORM

‹4.5.1 CHECK ENGINE OIL LEVEL

Refer to “Checking Fluid Levels” in Section 4.4.

‹4.5.2 CHECK BATTERY

•Check battery fluid level each week as outlined under “Check Fluid Levels”.

•Check battery cables for condition, tightness, cor- rosion or damage. Clean, tighten or replace as necessary.

‹4.5.3 EXERCISE SYSTEM

Start the generator engine at least once every seven days and let it run at least 20 minutes. See Section 3.6, “Weekly Exercise Cycle”.

OIL

DIPSTICK

OIL

FILL

‹4.4.2 BATTERY FLUID

Check battery electrolyte fluid at least once weekly. Fluid should cover separators in all battery cells. If fluid level is low, add distilled water to cover tops of separators. DO NOT USE TAP WATER IN BATTERY.

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‹4.5.4 INSPECT COOLING SYSTEM

•Inspect engine cooling system at least once each month.

•Check hoses for damage, deterioration, leaks, etc. Correct any discrepancies found.

•Check hose clamps for tightness.

‹4.5.5 CHECK ENGINE COOLANT LEVEL

See “Checking Fluid Levels” in Section 4.4.

‹4.5.6 PERFORM VISUAL INSPECTION

Complete a thorough visual inspection of the entire engine-generator monthly. Look for obvious damage, loose, missing or corroded nuts, bolts and other fas- teners. Look for fuel, oil or coolant leaks.

‹4.5.7 INSPECT EXHAUST SYSTEM

Inspect the exhaust system at least once every three months. Check all exhaust system pipes, mufflers, clamps, etc. for condition, tightness, leaks, security, damage.

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Contents Liquid-cooled, Prepackaged Standby Generators ‹ HOW to Obtain Service Authorized Service Dealer Location‹ Operation and Maintenance IntroductionTable of Contents  Warning   Electrical Hazards  Automatic System Operation Transfer SwitchGenerator Generator AC Connection Systems‹ 1.7.3 LOW Coolant Level Switch ‹ 1.7.2 High Coolant Temperature Switch‹ 1.7.1 LOW OIL Pressure Switch LOW OIL Presure Switch LOW Coolant Level SwitchUnpacking Lifting the Generator‹ 1.10.1 Generator Specifications SpecificationsReconfiguring the Fuel System ‹ 1.10.2 Engine SpecificationsBefore Installation Torque SpecificationsStandby Generator Installation Engine OIL RecommendationsGenerator Mounting Support Basic Standby Electric System‹ 2.1.2 Other Published Standards Total Circuit Isolation Method Transfer Switch Signal ConnectionsEmergency Circuit Isolation Method Grounding the GeneratorBattery Installation Preparation Before START-UP‹ 2.9.2 GTS-TYPE ATS Using AN Engineered GTS Transfer Switch ‹ 3.2.5 SET Exercise Time Switch ‹ 3.2.1 AUTO/OFF/MANUAL Switch‹ 3.2.2 Fault Indicator LED Control Console ComponentsRetransfer and Shutdown AdjustmentsManual Transfer START-UP Engine Governor Automatic OperationWeekly Exercise Cycle Cooling SystemOverload Protection for Engine DC Electrical System Checking Fluid Levels‹ 4.5.9 Inspect Engine Governor ‹ 4.5.11 Changing the Engine AIR Cleaner‹ 4.5.8 Check FAN Belt ‹ 4.5.10 Changing Engine OIL‹ 4.6.1 Cleaning the Generator Miscellaneous Maintenance‹ 4.6.3 Battery Maintenance ‹ 4.5.13 Coolant Change‹ 4.6.4 Battery Replacement ‹ Periodic Replacement PartsScheduled Maintenance Service Maintenance Interval InformationLevel Maintenance Level Troubleshooting Points Problem Cause CorrectionLiquid-cooled 30 kW Generators Installation Diagram SET Exerciser Switch Transfer SwitchAUTO/OFF/MANUAL Switch Size AWGIgnition Coil Otherwise Noted AS ShownBAT On PCBSWITCH, AUTO/OFF/MANUAL SWITCH, SET ExerciserDPE DEG 12V Battery REDALT Starter Motor GOVEngine Foot Battery Post Cover RED + Boot Battery CableBattery Post Cover Baclk Hold Down BatteryTo a To B Plcs Duct Discharge RH Front Assy Wire 14AWG 7.5 #0 GRN/YELIntake Duct HSB Duct Discharge LH FrontPage Decal AVR Cover Assy 2A 12V UL BatteryControl BOX HSB Cover Front Panel HSBCooled 30 kW Drawing No Exploded Coil Ignition 3.0L Ford Wire SET 3.0L Ford notNot SHOWN-USED to Hold OIL Drain Assembly Bracket DC ALT 3.0L FordFrame Venturi 3.0L Ford HSB Tank Coolant RecoveryRadiator R-IN,L-OUT Side Support Radiator HSBTo B Assy Regulator 3.0L NG or LPV Weldment Mounting BaseFlange Fuel Inlet Washer Flat 5/16 ZincLocktight Rotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 39030AD1 HSB TecumWasher Lock 3/8 SS Exhaust Flange 2 PipePipe Muffler OUT Gasket Exhaust RingCover AIR Cleaner Plate AIR Cleaner AdapterElement AIR Cleaner Adapter Carburetor W/PVC ConnWarranty Schedule

004988-4 specifications

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