1-1
1. Safety precautions
1.1 Types and meanings of warning terms and graphic symbols
This instruction manual divides precautions into the following four categories according to the
level of hazards (or the severity of the accident). In addition, prohibited or mandatory actions as
well as cautions are indicated with a graphic symbol.
Be sure to understand the meanings of the following terms and comply with the content
(instructions) of the instruction manual.
Explanation of the warning terms Explanation of the graphic symbols
Warning Term Meaning
Danger
Indicates an imminently hazardous
situation. Failure to observe this will result
in death or serious injury.
Don’ts Do not touch Do not
disassemble
Do not touch
with wet
hand
Do not
expose to
water
These graphic symbols indicate prohibited actions
(that must not be done).
Warning
Indicates a potentially hazardous
situation. Failure to observe this will result
in death or serious injury.
Do’s
This graphic symbol indicates mandatory
actions (that must be done).
Caution
Indicates a potentially hazardous
situation. Failure to observe this will result
in minor or moderate injury or property
damage.
Caution
Electric
shock
hazard
Rotation
hazard
Hot surface
Note
Indicates information that is in particular
to be noted or emphasized.
These graphic symbols indicate existing hazards to
beware of.
1.2 Safety precautions
Danger
Do not touch any energized parts after turning on the main power.
Doing so may cause electric shock leading to death because high voltage is applied to the energized part.
Do not use the product in any explosive atmosphere.
Doing so may cause an injury and fire.
Warning
Properly move the unit according to lifting
instructions.
Otherwise, the unit may fall, resulting in injury and/or damage.
Do not use the pump or perform any work with the
pump lifted up.
Otherwise, the unit may fall, resulting in injury and/or
damage.
Only those who are authorized by the site manager
are allowed to operate the pump.
Operation by unskilled personnel may lead to an unforeseen
accident.
Installation, maintenance, and inspection must
only be carried out by personnel who have been
trained to handle the pump.
Operation by unskilled personnel may lead to an unforeseen
accident.
Only qualified personnel, such as licensed electrical
engineers, are allowed to carry out any electric
work.
Otherwise, it may lead to an electric shock, fire, failures,
and/or other problems.
Use high-quality wiring equipment and devices,
and carry out wiring work safely and securely
according to the technical standards for electrical
facilities, as well as the indoor wiring regulations.
Otherwise, it may lead to an electric shock, fire, and/or other
problems.
Do not connect the ground wire to a gas pipe or
water pipe.
Such a connection is illegal and leads to an electric shock,
explosion and/or fire.
Securely install the ground wire and ensure to
carry out grounding work.
Otherwise, it may lead to an electric leak and/or electric
shock.
Do not operate the pump when its action or parts
are abnormal.
Otherwise, it may lead to injury, failures and/or various
accidents.
Wiring must be performed reliably according to the
connection diagram within the terminal box and
the instruction manual.
Incorrect wiring may cause fire, electric shock and other
accidents.
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