The electrical safety precautions that should be
observed by the station personnel are as follows:
1. Treat every circuit, including those as low as 24
volts, as a potential source of danger.
2. Except in cases of emergency, never allow work
on an energized circuit. Take every precaution to
insulate the person performing the work from ground.
That may be done by covering any adjacent grounded
metal with insulating rubber blankets. In addition,
provide ample illumination, cover working metal tools
with insulating rubber, station men at appropriate
circuit breakers or switches so that the switchboard can
be de-energized immediately in case of emergency, and
make sure all personnel are qualified to render first aid
(including CPR) for electric shock.
POWER PLANT MAINTENANCE
Inspection and servicing procedures covered in
this chapter are rather general. In most cases, they can
be applied to any electrical power generator that you
install. You realize, of course, that there are other
special installation details that pertain only to the
particular generator you happen to be working on.
Because of the many different types of generators,
certain instructions are applicable only to specific
types of generators; therefore, you should consult the
manufacturers instruction manuals for these details.
Power plant maintenance can be divided into two
general categories: operator maintenance and preven-
Operator maintenance includes the hourly, daily,
and weekly maintenance requirements recommended
in the manufacturers literature. Some operator
maintenance and routine checks include the following:
Bring oil level to the high mark on the dip stick.
Free movement of ventilation louvers.
Drain water and sediment from strainers and
Maintain level of coolant.
Check radiator and coolant hoses for leaks.
Check battery electrolyte level.
Check all switches for proper operation.
Drain water from fuel tank.
Fill fuel tank as required with appropriate diesel
Check fuel tank for leaks.
Log all operator maintenance in the operations log
book when it is completed.
Preventive maintenance includes the monthly,
quarterly, semiannual, and annual maintenance checks
recommended in the manufacturers literature. The
maintenance supervisor is responsible for establishing
a maintenance schedule to ensure the preventive main-
tenance is performed. A maintenance log book should
be established for each generator plant and all mainten-
ance checks recorded. The operation log book should
be reviewed periodically to ensure that all preventive
maintenance recommended by engine operating hours
is scheduled; for example, the schedule of engine lube
oil and filter replacement is normally based on hours of