Guardian Technologies 04759-2 Attention After Submersion, Corrosion Protection, Maintenance

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Figure 4.9 – Cooling Vent Locations

Section 4 — Maintenance

Air-cooled 7 kW, 12 kW and 15 kW Generators

Without sufficient cooling and ventilating air flow, the engine/generator quickly overheats, which causes it to quickly shut down. (See Figure 4.9 for vent locations.)

The exhaust from this product gets extremely hot and remains hot after shutdown. High grass, weeds, brush, leaves, etc. must remain clear of the exhaust. Such materials may ignite and burn from the heat of the exhaust system.

Figure 4.9 – Cooling Vent Locations

The maximum ambient temperature for the generator is 48.9° C (104° F).

4.10 ATTENTION AFTER SUBMERSION

If the generator has been submerged in water, it MUST NOT be started and operated. Following any submersion in water, have an Authorized Dealer thoroughly clean and dry the generator.

4.11 CORROSION PROTECTION

Periodically wash and wax the enclosure using automo- tive type products. Frequent washing is recommended in salt water/coastal areas. Spray engine linkages with a light oil such as WD-40.

4.12 OUT OF SERVICE PROCEDURE

‹4.12.1 REMOVAL FROM SERVICE

If the generator cannot be exercised every seven days, and it is to be out of service longer than 90 days, pre- pare the generator for storage as follows:

1.Start the engine and let it warm up.

2.Close the fuel shutoff valve in the fuel supply line and allow the unit to shut down.

3.Once the unit has shut down, it will signal a low oil fault.

4.Set the AUTO/OFF/MANUAL switch to OFF and turn off the utility power to the transfer switch. Remove both fuses from the generator control panel.

5.While the engine is still warm from running, drain the oil completely. Refill the crankcase with oil. See ”Engine Oil Recommendations,” Section 4.3.1.

6.Attach a tag to the engine indicating the viscosity and classification of the oil in the crankcase.

7.Remove the spark plug(s) and spray fogging agent into the spark plug(s) threaded openings. Reinstall and tighten the spark plug(s).

8.Remove the battery and store it in a cool, dry room on a wooden board. Never store the battery on any concrete or earthen floor.

9.Clean and wipe the entire generator.

‹4.12.2 RETURN TO SERVICE

To return the unit to service after storage, proceed as follows:

1.Set the generator’s main circuit breaker to its OFF (or open) position.

2.Verify that utility power is turned off and that the AUTO/OFF/MANUAL switch is set to OFF.

3.Check the tag on the engine for oil viscosity and classification. Verify that the correct recommended oil is used in the engine (see Section 4.3.1). If neces- sary, drain and refill with the proper oil.

4.Check the state of the battery. Fill all cells of unsealed batteries to the proper level with distilled water. DO NOT USE TAP WATER IN THE BATTERY. Recharge the battery to 100 percent state of charge, or, if defective, replace the battery. See “Specifications,” Section 1.5, for type and size.

5.Clean and wipe the entire generator.

6.Remove both fuses from the generator control panel.

7.Reconnect the battery. Observe battery polarity. Damage may occur if the battery is connected incor- rectly. Replace the fuses in the generator control panel.

8.Open the fuel shutoff valve.

9.Start the unit by moving the AUTO/OFF/MANUAL switch to MANUAL. Allow the unit to warm up thor- oughly.

10.Stop the unit and set the AUTO/OFF/MANUAL switch to AUTO. Set the generator’s main circuit breaker to its ON (or closed) position.

11.Turn on the utility power to the transfer switch.

12.The generator is now ready for service.

NOTE:

If the battery was dead or disconnected, the exercise timer must be reset.

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Contents  Not intended for use as Primary Power in place of utility  Models 04758-2 6 kW NG, 7 kW LP 04759-2 12 kW NG, 12 kW LP04760-2 13 kW NG, 15 kW LP This manual should remain with the unitINTRODUCTION ‹ CONTENTS‹ OPERATION AND MAINTENANCE ‹ HOW TO OBTAIN SERVICESection 5 - Troubleshooting Section 2 - Post Installation Start-upand Adjustments Section 4 - MaintenanceThis product contains or emits chemicals  GENERAL HAZARDS IMPORTANT SAFETY INSTRUCTIONS  WARNING ‹ STANDARDS INDEX  ELECTRICAL HAZARDS  FIRE HAZARDS   EXPLOSION HAZARDS DANGER 1.1 UNPACKING/INSPECTION1.2 PROTECTION SYSTEMS 1.3 SYSTEM SET LEDFigure 1.2 - 12 kW/15 kW, V-twin GT-990/760 Engine 1.4 THE GENERATORFigure 1.1 - 7 kW, Single Cylinder GH-410 Engine ‹ 1.5.2 ENGINE 1.5 SPECIFICATIONS‹ 1.5.1 GENERATOR DANGER 1.8 RECONFIGURING THE FUEL SYSTEM1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS 1.7 FUEL CONSUMPTIONFigure 1.4 - Demand Regulator 1.9 LOCATION‹ 1.8.2 12KW AND 15KW, 990CC ENGINES ‹ 1.9.1 GENERATORFigure 1.5 - Battery Cable Connections 1.10 BATTERY INSTALLATION1.11 THE BATTERY ‹ 1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW UnitsSection 2 - Post Installation Start-up and Adjustments 2.2 CHECK TRANSFER SWITCH OPERATION2.1 BEFORE INITIAL START-UP 2.3 ELECTRICAL CHECKS2.5 CHECKING AUTOMATIC OPERATION 2.4 GENERATOR TESTS UNDER LOADFigure 2.1 - Dual Fuel Regulators 2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLYFigure 2.2 - Placement of Regulator Figure 2.5 - V-twin Full Load Speed Adjust Screw 2.7 ENGINE GOVERNOR ADJUSTMENTFigure 2.3 - Single Cylinder Engine Governor Adjustment Figure 2.4 - V-twin Engine Governor Adjustment‹ 3.2.1 “AUTO” POSITION 2.8 VOLTAGE REGULATOR ADJUSTMENT3.1 BREAK-IN PROCEDURE Figure 2.6 - Voltage Adjustment Potentiometer‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCE 3.3 AUTOMATIC TRANSFER OPERATION3.4 SEQUENCE OF AUTOMATIC OPERATION 3.5 MANUAL TRANSFER OPERATIONFigure 3.2 - Manual Transfer Switch Operation 3.6 SETTING THE EXERCISE TIMER‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE ‹ 3.7.1 LOW OIL PRESSURE SWITCH4.2 CHECKING THE ENGINE OIL LEVEL ‹ 3.7.2 HIGH TEMPERATURE SWITCHFigure 3.3 - Low Oil Pressure and High Temperature Switches 4.1 FUSE4.4 CHANGING THE OIL FILTER 4.5 CHANGING THE ENGINE AIR CLEANER‹ 4.3.2 OIL CHANGE PROCEDURE 4.3 CHANGING THE ENGINE OILFigure 4.8 - Setting the Spark Plug Gap 4.7 BATTERY MAINTENANCEFigure 4.6 - 7 kW, Engine Air Cleaner Location Figure 4.7 - 12 kW and 15 kW Engine Air Cleaner4.9 COOLING SYSTEM 4.8 ADJUSTING VALVE CLEARANCEFigure 4.10 - Valve Clearance Adjustment 4.10 ATTENTION AFTER SUBMERSION 4.12 OUT OF SERVICE PROCEDURE‹ 4.12.1 REMOVAL FROM SERVICE ‹ 4.12.2 RETURN TO SERVICEbe performed by the nearest Authorized Dealer 4.13 SERVICE SCHEDULEATTENTION It is recommended that all service work Correction 5.1 TROUBLESHOOTING GUIDEProblem CauseSection 6 - Electrical Data ENGINE WIRINGCONNECTION CONTROL PANEL BOXCUSTOMER Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B Section 6 - Electrical Data Section 6 - Electrical Data ENGINE WIRINGCUSTOMER 224A 225AElectrical Schematic - 7 kW - Drawing No. 0D9014-C PRE PACKAGED UNITS ONLY Section 7 - Exploded Views and Parts ListsFOAM, BACK EXHAUST ENCLOSURE COVER PART NO. QTY. DESCRIPTIONCLOTH, HARDWARE 266.7mm x 146mm 7KW FOAM, EXHAUST SIDE ENCLOSURE FRONTSection 7 - Exploded Views and Parts Lists DESCRIPTION PART NO. QTY72 27, 28 73 3, 32, 33, 34, 35, 36, 40 Views and Parts Lists66 2, 5, 19, 20, 39, 40, 47, 64, 93 67 8, 11, 12 68 4, 5 69 16A, 16B, 17ROLLER BEARING, GOVERNOR PLATE ASSEMBLY, CRANKCASE HOUSING WITHASSEMBLY, CRANKSHAFT HORIZONTAL ITEM PART NO. QTY. DESCRIPTIONSection 7 - Exploded Views and Parts Lists ASSY, IGNITION COIL GV-990 CYLINDER 7 kW Generator - Drawing No. 0D3504-E 1.25 FT 1.8 FT32 31 12 kW and 15 kW Generator - Drawing No. 0D3417-L1.44 FT 2.6 FT3 FT Section 7 - Exploded Views and Parts Lists DESCRIPTION Section 7 - Exploded Views and Parts ListsSection 7 - Exploded Views and Parts Lists DESCRIPTION Section 7 - Exploded Views and Parts ListsSection 7 - Exploded Views and Parts Lists DESCRIPTION Air-cooled ALL DIMENSIONS IN MILLIMETERS INCHESSection 8 - Mounting Drawing NoSection 9 - Notes CALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONSMANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIESEMISSION RELATED PARTS INCLUDE THE FOLLOWING EMISSION CONTROL SYSTEM WARRANTYPREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIANWARRANTY SCHEDULE THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING