Guardian Technologies 04389-2, 04456-2 Before Initial START-UP, Check Transfer Switch Operation

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Section 2 — Post Installation Start-up and Adjustments

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

Do not open or mutilate the battery. Released

!electrolyte has been known to be harmful to the skin and eyes, and to be toxic.

The electrolyte is a dilute sulfuric acid that is

!harmful to the skin and eyes. It is electrically conductive and corrosive.

The following procedures are to be observed:

Wear full eye protection and protective clothing;

Where electrolyte contacts the skin, wash it off immediately with water;

Where electrolyte contacts the eyes, flush thoroughly and immediately with water and seek medical attention; and

Spilled electrolyte is to be washed down with an acid neutralizing agent. A common practice is to use a solution of 1 pound (500 grams) bicarbonate of soda to 1 gallon (4 liters) of water. The bicar- bonate of soda solution is to be added until the evidence of reaction (foaming) has ceased. The resulting liquid is to be flushed with water and the area dried.

Lead-acid batteries present a risk of fire because they generate hydrogen gas. The following procedures are to be followed:

DO NOT SMOKE when near the battery;

DO NOT cause flame or spark in battery area; and

Discharge static electricity from body before touch- ing the battery by first touching a grounded metal surface.

Be sure the AUTO/OFF/MANUAL switch is set to ! the OFF position before connecting the battery cables. If the switch is set to AUTO or MANUAL,

the generator can crank and start as soon as the battery cables are connected.

Be sure the utility power supply is turned off and the 5A and 15A fuses are removed from the generator control panel, or sparking may occur at the battery posts as the cables are attached and cause an explosion.

2.1BEFORE INITIAL START-UP

Before starting, complete the following:

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

2.Set the generator's AUTO/OFF/MANUAL switch to the OFF position.

3.Turn OFF the utility power supply to the transfer switch using the means provided (such as the utility main line circuit breaker).

4.Turn OFF all loads connected to the transfer switch terminals T1 and T2.

5.Check the engine crankcase oil level and, if nec- essary, fill to the dipstick FULL mark with the recommended oil. Do not fill above the FULL mark.

6.Check the fuel supply. Gaseous fuel lines must have been properly purged and leak tested in accordance with applicable fuel-gas codes. All fuel shutoff valves in the fuel supply lines must be open.

Never operate the engine with the oil level

!below the “Add” mark on the dipstick. Doing this could damage the engine.

2.2CHECK TRANSFER SWITCH

OPERATION

Refer to Section 3.5, of the owner’s manual for man- ual operation procedures.

DANGER

Do not attempt manual transfer switch opera- tion until all power voltage supplies to the transfer switch have been positively turned off. Failure to turn off all power voltage supplies will result in extremely hazardous and possibly fatal electrical shock.

2.3ELECTRICAL CHECKS

Complete electrical checks as follows:

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

2.Set the generator's AUTO/OFF/MANUAL switch to the OFF position.

3.Turn OFF all loads connected to the transfer switch terminals T1 and T2.

4.Turn on the utility power supply to the transfer switch using the means provided (such as a utili- ty main line circuit breaker).

DANGER

The transfer switch is now electrically “hot.” Contact with “hot” parts will result in extreme- ly hazardous and possibly fatal electrical shock. Proceed with caution.

5.Use an accurate AC voltmeter to check utility power source voltage across transfer switch ter- minals N1 and N2. Nominal line-to-line voltage should be 240 volts AC.

6.Check utility power source voltage across termi- nals N1 and the transfer switch neutral lug; then across terminal N2 and neutral. Nominal line-to- neutral voltage should be 120 volts AC.

10 Generac® Power Systems, Inc.

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Contents Installation Introduction Authorized Dealer LocationPost Installation Start-up Adjustments MaintenanceTroubleshooting Introduction Inside Front CoverGeneral Hazards Electrical Hazards ‹ Standards IndexUNPACKING/INSPECTION Protection SystemsBreaker for Bedrooms Generator 7 kW, Single Cylinder GH-410 EngineSpecifications ‹ 1.5.1 Generator‹ 1.5.2 Engine Reconfiguring the Fuel System System SET LEDFuel Requirements Recommendations Fuel ConsumptionTransfer Switch Location2 12KW and 15KW, 990CC Engines GeneratorBattery Installation BatteryCheck Transfer Switch Operation Before Initial START-UPElectrical Checks Generator Tests Under Load Checking Automatic OperationAdjusting the Regulator Natural GAS only Adjustment ScrewVoltage Regulator Adjustment 1 7 KW Units2 12 KW and 15 KW Units BREAK-IN Procedure Automatic Transfer Operation‹ 3.2.1 Auto Position ‹ 3.2.2 OFF PositionManual Transfer Operation Sequence of Automatic OperationSetting the Exercise Timer ‹ 3.5.2 Transfer Back to Utility Power Source‹ 3.7.1 LOW OIL Pressure Switch ‹ 3.7.2 High Temperature SwitchChecking the Engine OIL Level Approximate Crank Cycle Times‹ 3.7.4 Overspeed ‹ 4.3.2 OIL Change Procedure Changing the Engine OILChanging the OIL Filter ‹ 4.3.1 Engine OIL RecommendationsBattery Maintenance Spark PlugsAdjusting GH-410/GT-990 Valve Clearance Cooling SystemOUT of Service Procedure ‹ 4.12.1 Removal from Service‹ 4.12.2 Return to Service Corrosion ProtectionService Schedule Be performed by the nearest Guardian Authorized DealerTroubleshooting Guide Problem Cause CorrectionElectrical Data Customer Battery Utility Battery Charger Utility Connection BCR SW1 Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists Circuit Breaker 40A X 2P Exploded Views and Parts Lists BOX GTS Load Center Exploded Views and Parts Lists COVER, 12 Position GTS Load Center 140 Sleeve Exploded Views and Parts Lists KNOB, AIR Cleaner 28 31 ADAPTOR, Engine Exploded Views and Parts Lists Stator 12KW Exploded Views and Parts Lists PIN, Piston D20 Exploded Views and Parts Lists SCREW, Taptite M6-1.0X8 Yellow Chrome Engine only Mounting Dimensions Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Your Warranty Rights and Obligations MANUFACTURER’S Emission Control System Warranty CoveragePURCHASER’S/OWNER’S Warranty Responsibilities Emission Control System Warranty Emission Related Parts Include the FollowingWarranty Schedule