YAMADA NDP-25 Series Operation Manual page 4

- When installing this product, be sure to connect a ground wire from the specified position of
this product. When this product is installed and operated without the ground wire properly
connected, friction between parts, as well as abrasion caused by the flow of some materials
inside the casing, may generate static electricity. Also, depending on the type of material
being pumped and the installation environment (such as gases in the air and type of
surrounding fixtures), static electricity could become a cause of fire or electric shock.
- Improper grounding, poor ventilation, or unshielded fire or spark can create a danger of fire
or explosion. Therefore, the following precautions are strongly advised.
*All peripheral equipment and piping connected to this product should be properly
grounded.
*Whenever you notice any spark while operating this product, immediately stop its
operation, and do NOT start using it again unless you are sure of the cause and corrective
actions have been taken.
*Depending upon the type of material being pumped, bubbles of flammable gas may be
generated. Make sure that ventilation is satisfactory.
*This product itself, its piping and exhaust ports should be kept away from unshielded fire,
spark and other causes of ignition. If a diaphragm is damaged, material will gush out
together with air from the exhaust port.
*Do NOT leave gasoline or solvent etc. that contains waste at the work site.
*Machinery and other equipment near the place of installation of this product should be
properly insulated to prevent conduction with each other.
*Do NOT operate heating devices that create flames or have heating filaments anywhere
near the pump or its piping.
*If there are flammable gases in the air while the pump is operating, do NOT switch
electric appliance on and off.
*Do NOT operate a gasoline engine at the work site.
*Restrict smoking at the work site.
- Remove residual material from the pump and piping before disconnecting or storing. Even
when not in operation, the pump and piping may contain residual material inside. Also, if
the pump is not in use for a long period of time, residual material may stick to the inside of
the pump and piping, resulting in damage to the pump or material leaks when the pump is
restarted.
- Always use genuine Yamada parts when replacing component parts of this product. Do NOT
attempt to modify the components parts or replace them with other than genuine Yamada
parts.
- Torque of all tightening parts must be inspected before operation. Designated torque are
mentioned in maintenance manual.
WARNING
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