YAMADA NDP-5 series, Руководство по эксплуатации

Страница: 5 / 60

5
WARNING WARNING WARNING WARNING
•When installing this product, be sure to connect a ground wire from the specified position of
this product (excluded NDP-5FPT, NDP-10, 15FP □ , and DP-F series).
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 fluids inside the casing, may
generate static electricity. Also, depending on the type of fluid 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.
*To pump flammable liquids, use an ATEX compliant model.
*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 fluid 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, fluid 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 the piping.
*If there are flammable gases in the air while the pump is operating, do NOT switch electric
appliances on and off.
*Do NOT operate a gasoline engine at the work site.
*Restrict smoking at the work site.
•The DP-F series pumps are intended for pumping hazardous fluids such as those that contain
strong acids or organic solvents. If you find any irregularity in this product, do
NOT try to disassemble or service the product yourself. Contact your dealer or our regional office
for service.
If you disassemble or service this product yourself and if further irregularity occurs, it may cause
a great risk, depending upon the kind of fluid to be pumped.
•After you shut down the pump and disconnect the piping, some fluid may remain inside the pump.
Also, if the pump is left unused for a prolonged period, some fluid may remain inside the pump
and connected piping. Therefore, be sure to purge the system of fluid and clean the pump before
prolonged disuse.
If the product is left unused for a prolonged period with fluid remaining in the connected piping as
well as the pump itself, the fluid may expand, depending on the ambient temperature (because of
freezing or heat), which may cause damage to the pump and/or piping and possible leakage of fluid.
•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 torques is mentioned in maintenance manual.