YK10-0015-DI-002-03
viii
CAUTION
●Ensure to flow the cooling water during operation. Required Cooling
water shall be;
Cooling water volume : 10 L/min or more
Cooling water temperature : 5°C ~ 30°C
●It is recommended to use water with a low number of impurities (e.g.
industrial water; see the table below) as the cooling water for this
product. Depending on the water quality, the cooling water system of
this product may cause scale, such as calcium carbonate, inside it,
reducing the cooling water flow. In addition, it may be corroded from
the inner wall by chlorine ions, resulting in cooling water leakage. And
if pure water is used, metal may be eluted, resulting in cooling water
leakage. Note in advance that in such a case, repair may be borne by
you.
●Shortage of the cooling water might give damage on the bearing, gear
and rod sealing, which results in contact of the rotor and casing and
operation stop.
[For reference] The standard quality of water supply in the Japanese industrial water works
Turbidity
Mg/L
pH Alkalinity
CaCO
3
Hardness
Mg. CaCO
3
mg/L
Evaporation
residue
mg/L
Chlorine ion
Cl-
mg/L
Iron
Fe
mg/L
Manganese
Mn
mg/L
20 or less 6.5 – 8.0 75 max. 120 max. 250 max. 80 or less 0.3 or less 0.2 or less
Established by: Japan Industrial Water Association
(Industrial water quality standard setting committee)
CAUTION
●Be sure to lubricate the machine.
●If the lubrication oil came down lower than limit level during operation,
it might give damage on the bearing, gear and rod sealing and result in
leak, noise, motor overload and operation stop.
Power Supply wiring <Dismantling>
WARNING
●Be sure to cut off the electricity before starting install or dismantling
operation.
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