Guardian Technologies 004988-4 owner manual Miscellaneous Maintenance, ‹ 4.5.13 Coolant Change

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Section 4 — Maintenance

Liquid-cooled 30 kW Generators

‹4.5.12 SPARK PLUGS

Reset the spark plug gap or replace the spark plugs as necessary. See Section 6.

1.Clean the area around the base of the spark plugs to keep dirt and debris out of the engine. Clean by scraping or washing using a wire brush and commercial solvent. Do not blast the spark plugs to clean.

2.Remove the spark plugs and check the condition. Replace the spark plugs if worn or if reuse is questionable. See the “Service Schedule,” Section 6, for recommended inspection.

3.Check the spark plug gap using a wire feeler gauge. Adjust the gap to 1.06-1.16 mm (0.042- 0.046 inch) by carefully bending the ground elec- trode (Figure 4.4).

Figure 4.4 – Setting the Spark Plug Gap

SET PLUG GAP AT 1.06-1.16 mm

(0.042-0.046 inch)

‹4.5.13 COOLANT CHANGE

Every year, have Authorized Service Facility drain, flush and refill the cooling system. See SPECIFICATIONS (Section 1.10) for cooling system recommendations.

Finally, have the insulation resistance of stator and rotor windings checked. If insulation resistances are excessively low, the generator may require drying.

‹4.6.2 BATTERY

All lead-acid storage batteries discharge when not in use. Refer to specific instructions and warnings that accompany the battery. If such information is not available, observe the following precautions when handling a battery:

DO NOT use jumper cables and a booster battery to crank or start the generator engine.

DO NOT recharge a weak battery while it is installed in the generator. Remove battery from generator and recharge in a well-ventilated area, away from fuel vapors, sparks, heat or flames.

Battery electrolyte fluid is an extremely caustic sulfuric solution that can cause severe burns. DO NOT permit fluid to contact eyes, skin, clothing, painted surfaces, wiring insulation, etc. If any bat- tery fluid is spilled, flush the affected area with clear water immediately.

Always wear safety glasses, rubber apron and gloves when handling a battery.

Batteries give off explosive hydrogen gas while charging. The gas can form an explosive mixture around the battery for several hours after charging. Any spark, heat or flames can ignite the gas and cause an explosion which can shatter the battery, causing blindness or other serious injury.

‹4.6.3 BATTERY MAINTENANCE

The battery should be inspected per the “Service Schedule,” Section 6. The following procedure should be followed for inspection:

4.6MISCELLANEOUS MAINTENANCE

‹4.6.1 CLEANING THE GENERATOR

Keep the generator as clean and as dry as possible. Dirt and moisture that accumulates on internal gen- erator windings have an adverse effect on insulation resistance.

Periodically clean generator exterior surfaces. A soft brush may be used to loosen caked on dirt. Use a vacuum system or dry, low pressure air to remove any accumulations of dirt. The generator is housed inside an all-weather enclosure, clean the enclosure with a soft, damp cloth or sponge and water.

Once each year, have the generator cleaned and inspected by an Authorized Service Dealer. That dealer will use dry, low pressure air to clean internal windings. Parts inside the control console should be cleaned and inspected at this time as well.

1.Inspect the battery posts and cables for tightness and corrosion. Tighten and clean as necessary.

2.Check the battery fluid level of unsealed batteries and, if necessary, fill with DISTILLED WATER ONLY. DO NOT USE TAP WATER IN BATTER- IES.

3.Have the state of charge and condition checked. This should be done with an automotive-type bat- tery hydrometer.

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Contents Liquid-cooled, Prepackaged Standby Generators Authorized Service Dealer Location ‹ Operation and Maintenance‹ HOW to Obtain Service IntroductionTable of Contents  Warning   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 LOW OIL Presure Switch LOW Coolant Level SwitchUnpacking Lifting the GeneratorSpecifications Reconfiguring the Fuel System‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine SpecificationsTorque Specifications Standby Generator InstallationBefore Installation Engine OIL Recommendations‹ 2.1.2 Other Published Standards Generator Mounting SupportBasic Standby Electric System Transfer Switch Signal Connections Emergency Circuit Isolation MethodTotal Circuit Isolation Method Grounding the Generator‹ 2.9.2 GTS-TYPE ATS Battery InstallationPreparation Before START-UP Using AN Engineered GTS Transfer Switch ‹ 3.2.1 AUTO/OFF/MANUAL Switch ‹ 3.2.2 Fault Indicator LED‹ 3.2.5 SET Exercise Time Switch Control Console ComponentsAdjustments Manual Transfer START-UP Engine GovernorRetransfer and Shutdown Automatic OperationWeekly Exercise Cycle Cooling SystemOverload Protection for Engine DC Electrical System Checking Fluid Levels‹ 4.5.11 Changing the Engine AIR Cleaner ‹ 4.5.8 Check FAN Belt‹ 4.5.9 Inspect Engine Governor ‹ 4.5.10 Changing Engine OILMiscellaneous Maintenance ‹ 4.6.3 Battery Maintenance‹ 4.6.1 Cleaning the Generator ‹ 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 Transfer Switch AUTO/OFF/MANUAL SwitchSET Exerciser Switch Size AWGOtherwise Noted AS Shown BATIgnition Coil On PCBDPE SWITCH, AUTO/OFF/MANUALSWITCH, SET Exerciser 12V Battery RED ALTDEG Starter Motor GOVEngine Foot Boot Battery Cable Battery Post Cover BaclkBattery Post Cover RED + Hold Down BatteryTo a To B Plcs Assy Wire 14AWG 7.5 #0 GRN/YEL Intake Duct HSBDuct Discharge RH Front Duct Discharge LH FrontPage Assy 2A 12V UL Battery Control BOX HSBDecal AVR Cover Cover Front Panel HSBCooled 30 kW Drawing No Exploded 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 TecumExhaust Flange 2 Pipe Pipe Muffler OUTWasher Lock 3/8 SS Gasket Exhaust RingPlate AIR Cleaner Adapter Element AIR CleanerCover AIR Cleaner Adapter Carburetor W/PVC ConnWarranty Schedule

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