Miura CMU-324HE, Operation Manual

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SECTION 5: INSPECTION AND MAINTENANCE
45
If there is a defect or cracking on the filter casing assembly, turn OFF the
earth leakage circuit breaker and close a main feed water
(*)
valve before
replacing the filter casing assembly. If water leakage is not stopped even
though the filter casing assembly and tube joint are tightened, replace the
filter casing assembly. If the filter casing assembly has been used for a long
time, it is recommended to replace it.
3.1.3 Checking Filter Casing Assembly
3.2 Others
• Checking the amount of hardness
(*)
leakage when hardness leakage occurs:
Use a hardness
(*)
indicator to check if a hardness
(*)
leakage has actually occurred. Since this is
a visual check, the exact amount of hardness
(*)
leakage cannot be known. To know the exact
amount (numeric value) of the hardness
(*)
leakage, perform water analysis.
Collect the sample water from raw water
(*)
into the device or utilize drain water which is not
colored by reagent used in the device.