Safety
DEFINITION: The word Generator, as used in this
publication, includes only the products of Marathon
Electric, a subsidiary of RBC Manufacturing
Corporation, and does not include the prime mover
or any of the prime mover related systems or
accessories.
ELECTRICAL SAFETY
ELECTRICAL HAZARD
Failure to connect the voltage regulator in accor-
dance with the manufacturer’s documentation may
result in serious personal injury, death, and/or
property damage.
ELECTRICAL SHOCK HAZARD
Failure to follow these instructions may result in
serious personal injury, death, and/or property
damage.
Installation and repair of electrical generators
and voltage regulators should be attempted
by qualified personnel only. Electrical con-
nections shall be made by a qualified electri-
cian in accordance with all local, national,
international and/or other applicable codes,
rules or regulations and sound practices.
Do not touch electrically live parts.
Disconnect, lockout and tag prime mover
and input power supplies before installing or
servicing voltage regulator. Use a voltmeter
to verify that power is off before contacting
conductors.
Do not open terminal box or touch unpro-
tected terminals while the generator shaft
is rotating. Shaft rotation produces voltage
in generators even when no excitation is
applied. Residual voltage is present at the
generator leads and regulator connections
even when the regulator fuse is removed.
Ground (earth) regulator in accordance with
local, national, international and/or other
applicable codes, rules or regulations.
MAGNETIC FIELD HAZARD
Permanent magnet generator (PMG) rotors, when
removed from the stator, expose surrounding
personnel and equipment to powerful magnetic
fields which may cause serious health hazards to
persons with pacemakers, hearing aids, or other
implanted electronic medical devices and may
impact other electronic devices such as mobile
phones, credit cards, etc.
EXPLOSION HAZARD
Beware of arcing when connecting test leads.
Arcing could spark an explosion if exposed to
battery gases, fuel vapors or other hazardous
atmospheres. Failure to follow these instructions
could result in serious personal injury, death and/
or property damage.
MECHANICAL SAFETY
ROTATING PARTS HAZARD
Keep extremities, hair, jewelry and clothing away
from moving parts. Failure to follow these instruc-
tions could result in serious personal injury, death
and/or property damage.
OVERSPEED HAZARD
Do not exceed the rated speed of the generator.
Excessive centrifugal forces could damage the
rotatingfields andcause partsto beexpelled at ahigh
rate of speed. Failure to follow these instructions
could result in serious personal injury, death and/
or property damage.
DO NOT DISASSEMBLE
Only qualified personnel who know local, national,
international and/or other applicable codes, rules
or regulations and sound practices should install or
repair electric generators and voltage regulators.
Failure to follow these instructions could result
in serious personal injury, death and/or property
damage.
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