North Star 27500 - Manual (Page 9)

8
GENERATOR CARE
The generator head is a two pole, 3600 RPM, 60
Hz, brushless, revolving field and synchronous type
with two sealed radial bearings.
Proper care and maintenance are necessary to
ensure a long trouble free life.
Exercising The Generator - The generator
should be operated every four weeks. This is
accomplished by starting the engine and applying a
load for 15 minutes. This will dry out any moisture that
has accumulated in the windings. If left, this moisture
can cause corrosion in the winding. Frequent
operation of the generator will also ensure that the set
is operating properly should it be needed in an
emergency.
Generator Maintenance - The generator head is
brushless and maintenance free. Any major generator
service including the installation or replacement of
parts should be performed only by a qualified electrical
service technician. USE ONLY NorthStar APPROVED
REPAIR PARTS AVAILABLE AT 1-800-270-0810.
A. Bearing - The bearings used in this generator
are a heavy duty, sealed ball bearing type. They
require no maintenance or lubrication.
B. Receptacles - Quality receptacles have been
utilized. If a receptacle should become cracked or
otherwise damaged, replace it. Using cracked or
damaged receptacles can be both dangerous to the
operator and destructive to the equipment.
WARNING, Stand-by Operation
If your generator is to be used as a standby
electric power source in case of utility failure, it must
be installed by a registered and licensed electrician
and in compliance with all applicable state and local
electrical codes. Also, local Fire Departments must be
consulted concerning proper and safe handling
procedures for gasoline. NEVER connect any
generator to any existing electrical system without an
isolating, UL approved transfer switch, installed by a
licensed electrician.