Hobart 60CU20 Operation And Maintenance Manual With Illustrated Parts List page 8

OM-2226 / Operation and Maintenance Manual
60CU20 / Series 500062 / 400 Hz. Generator Set
Always connect the grounding lead, if supplied in a power line cable, to the grounded switch box or
building ground. If not provided, use a separate grounding lead. Ensure that the current (amperage)
capacity of the grounding lead will be adequate for the worst fault current situation. Refer to the
National Electrical Code ANSI/NFPA 70 for details. Do not remove plug ground prongs and use
correctly mating receptacles.
b) Output Cables and Terminals
Inspect cables frequently for damage to the insulation and the connectors. Replace or repair cracked
or worn cables immediately. Do not overload cables. Do not touch output terminal while equipment
is energized.
3) Service and Maintenance
This equipment must be maintained in good electrical condition to avoid hazards stemming from
disrepair. Report any equipment defect or safety hazard to the supervisor and discontinue use of the
equipment until its safety has been assured. Repairs should be made by qualified personnel only.
Before inspecting or servicing this equipment, take the following precautions:
a) Shut off all power at the disconnecting switch, or line breaker, or by disconnecting battery, before
inspecting or servicing the equipment.
b) Lock switch OPEN (or remove line fuses) so that power cannot be turned on accidentally.
c) Disconnect power to equipment if it is out of service.
d) If troubleshooting must be done with the unit energized, have another person present who is trained
in turning off the equipment and providing or calling for first aid.
4) Fire And Explosion Prevention
Fire and explosion are caused by electrical short circuits, combustible material near engine exhaust pipes,
misuse of batteries and fuel, or unsafe operating or fueling conditions.
a) Electrical Short Circuits and Overloads
Overloaded or shorted equipment can become hot enough to cause fires by self-destruction or by
causing nearby combustibles to ignite. For electrically powered equipment, provide primary input
protection to remove short circuited or heavily overloaded equipment from the line.
b) Batteries
Batteries may explode and/or give off flammable hydrogen gas. Acid and arcing from a ruptured
battery can cause fires and additional failures. When servicing, do not smoke, cause sparking, or use
open flame near the battery.
c) Engine Fuel
Use only approved fuel container or fueling system. Fires and explosions can occur if the fuel tank is
not grounded prior to or during fuel transfer. Shut unit DOWN before opening fuel tank cap. DO NOT
completely fill tank, because heat from the equipment may cause fuel expansion overflow. Remove
all spilled fuel IMMEDIATELY, including any that penetrates the unit. After clean-up, open equipment
doors and blow fumes away with compressed air.
May 2, 2013 Safety Warnings
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