Guardian Technologies 004992-2 owner manual Electrical Hazards

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IMPORTANT SAFETY INSTRUCTIONS

40kW Liquid-cooled Generators

Inspect the generator regularly, and promptly repair or replace all worn, damaged or defective parts using only factory-approved parts.

Before performing any maintenance on the generator, disconnect its battery cables to prevent accidental start-up. Disconnect the cable from the battery post indicated by a NEGATIVE, NEG or (–) first. Reconnect that cable last.

Never use the generator or any of its parts as a step. Stepping on the unit can stress and break parts, and may result in dangerous operating conditions from leaking exhaust gases, fuel leakage, oil leakage, etc.

ELECTRICAL HAZARDS

All generators covered by this manual produce dan- gerous electrical voltages and can cause fatal electrical shock. Utility power delivers extremely high and dan- gerous voltages to the transfer switch as well as the standby generator. Avoid contact with bare wires, ter- minals, connections, etc., on the generator as well as the transfer switch, if applicable. Ensure all appropri- ate covers, guards and barriers are in place before operating the generator. If work must be done around an operating unit, stand on an insulated, dry surface to reduce shock hazard.

Do not handle any kind of electrical device while standing in water, while barefoot, or while hands or feet are wet. DANGEROUS ELECTRICAL SHOCK MAY RESULT.

If people must stand on metal or concrete while installing, operating, servicing, adjusting or repairing this equipment, place insulative mats over a dry wooden platform. Work on the equipment only while standing on such insulative mats.

The National Electrical Code (NEC), Article 250 requires the frame and external electrically conduc- tive parts of the generator to be connected to an approved earth ground and/or grounding rods. This grounding will help prevent dangerous electrical shock that might be caused by a ground fault condi- tion in the generator set or by static electricity. Never disconnect the ground wire.

Wire gauge sizes of electrical wiring, cables and cord sets must be adequate to handle the maximum elec- trical current (ampacity) to which they will be sub- jected.

Before installing or servicing this (and related) equip- ment, make sure that all power voltage supplies are positively turned off at their source. Failure to do so will result in hazardous and possibly fatal electrical shock.

Connecting this unit to an electrical system normally supplied by an electric utility shall be by means of a transfer switch so as to isolate the generator electric system from the electric utility distribution system when the generator is operating. Failure to isolate the two electric system power sources from each other by such means will result in damage to the generator and may also result in injury or death to utility power workers due to backfeed of electrical energy.

Generators installed with an automatic transfer switch will crank and start automatically when NOR- MAL (UTILITY) source voltage is removed or is below an acceptable preset level. To prevent such automat- ic start-up and possible injury to personnel, disable the generator’s automatic start circuit (battery cables, etc.) before working on or around the unit. Then, place a “Do Not Operate” tag on the generator control panel and on the transfer switch.

In case of accident caused by electric shock, immedi- ately shut down the source of electrical power. If this is not possible, attempt to free the victim from the live conductor. AVOID DIRECT CONTACT WITH THE VICTIM. Use a nonconducting implement, such as a dry rope or board, to free the victim from the live conductor. If the victim is unconscious, apply first aid and get immediate medical help.

Never wear jewelry when working on this equipment. Jewelry can conduct electricity resulting in electric shock, or may get caught in moving components causing injury.

FIRE HAZARDS

Keep a fire extinguisher near the generator at all times. Do NOT use any carbon tetra-chloride type extinguisher. Its fumes are toxic, and the liquid can deteriorate wiring insulation. Keep the extinguisher properly charged and be familiar with its use. If there are any questions pertaining to fire extinguishers, consult the local fire department.

EXPLOSION HAZARDS

Properly ventilate any room or building housing the generator to prevent build-up of explosive gas.

Do not smoke around the generator. Wipe up any fuel or oil spills immediately. Ensure that no combustible materials are left in the generator compartment, or on or near the generator, as FIRE or EXPLOSION may result. Keep the area surrounding the generator clean and free from debris.

These generator sets may operate using one of sever- al types of fuels. All fuel types are potentially FLAM- MABLE and/or EXPLOSIVE and should be handled with care. Comply with all laws regulating the storage and handling of fuels. Inspect the unit’s fuel system frequently and correct any leaks immediately. Fuel supply lines must be properly installed, purged and leak tested according to applicable fuel-gas codes before placing this equipment into service.

Diesel fuels are highly FLAMMABLE. Gaseous fluids such as natural gas and liquid propane (LP) gas are extremely EXPLOSIVE. Natural gas is lighter than air, and LP gas is heavier than air; install leak detectors accordingly.

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Contents Liquid-cooled, Prepackaged Standby Generators ‹ HOW to Obtain Service ‹ Operation and MaintenanceIntroduction ‹ Read this Manual ThoroughlyTable of Contents General Hazards Electrical Hazards Generator Transfer SwitchAutomatic 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 Generator Fuel SystemLifting the Generator UnpackingReconfiguring the Fuel System Specifications‹ 1.10.1 Generator Specifications ‹ 1.10.2 Engine SpecificationsBefore Installation Torque SpecificationsEngine OIL Recommendations Coolant RecommendationsGenerator Mounting Support Generator LocationBasic Standby Electric System ‹ 2.1.1 Nfpa StandardsGenerator AC Neutral Connections Emergency Circuit Isolation MethodTotal Circuit Isolation Method Battery Installation Transfer Switch Signal Connections‹ 2.9.1 PRE-PACKAGED ATS ‹ 2.9.2 GTS-TYPE ATSPreparation Before START-UP ‹ 3.2.1 AUTO/OFF/MANUAL Switch Using AN Engineered GTS Transfer Switch‹ 3.2.2 Fault Indicator Leds Control Console Components‹ 3.2.5 SET Exercise Time Switch Engine Governor AdjustmentsManual Transfer START-UP ‹ 3.2.6 System Ready LEDWeekly Exercise Cycle Retransfer and ShutdownAutomatic Operation Cooling System Overload Protection for Engine DC Electrical SystemChecking Fluid Levels ‹ 4.5.8 Check FAN Belt ‹ 4.5.2 Check Battery‹ 4.5.9 Inspect Engine Governor ‹ 4.5.1 Check Engine OIL Level‹ 4.5.11 Changing the Engine AIR Cleaner Miscellaneous Maintenance‹ 4.6.1 Cleaning the Generator ‹ 4.5.13 Coolant Change‹ 4.6.4 Battery Replacement ‹ 4.6.3 Battery MaintenanceService Maintenance Interval Information Scheduled MaintenanceLevel Maintenance Level Problem Cause Correction Troubleshooting PointsElectrical Data Electrical Data Electrical Data Electrical Data Engine Block Hold Down Battery Assy WireBoot Battery Cable Battery Post Covwer BlackSee Latch Detail Intake Duct HSB Assy Wire 14AWG 7.5 #0 GRN/YELDuct Discharge RH Front Duct Discharge LH FrontPage Control BOX HSB Assy 2A 12V UL BatteryDecal AVR Cover Cover Front Panel HSBEngine Assembly Resistor Cover Flywheel AccessFlexplate 3.9L HSB SunkTo a 17 Radiator Copper Brass Tank Coolant RecoveryVENTURI,3.9L Cryslr HSB 22FAN Radiator Support L/H SideTo Engine Hold Down AIR Cleaner Base AIR Cleaner PlatePlate AIR Cleaner TOP Flange Fuel InletLocktight Rotor 390 20KW 1P Direct HSB 2.5L Ford Rotor 390 15KW 1P Direct HSB 2.5L FordRotor 390 25KW 1P Direct HSB 2.5L Ford Rotor 39030AD1 HSB TecumExhaust Flange 2 Pipe NUT TOP Lock FL M12-1.75Washer Lock M12 Exhaust Blanket 800MMInstallation Diagram 40kW Liquid-cooled Generators 40kW Liquid-cooled Generators Warranty Schedule