5-3
Maintenance checklist
Item
Inspection point
Inspection item
Inspection
method
Criterion
(Reference page)
Inspection interval
Timing of replacing
consumables
(as a guide)*
1
Daily Monthly Half-
yearly Yearly
Ambient condi
tion
s Temperature
Check against the
specified range.
Measure Between 0 and 40°C (2-2)
-
Humidity
Measure Less than 85% RH (2-2)
-
Dust and other
contaminants
Visual check No dust or other
contaminants
-
Power
Power terminal block
Voltage
Measure Specified voltage (2-2)
-
Voltage fluctuation
Measure Within the allowable
fluctuation range (2-2)
-
Loose screws
Tighten
Securely tightened
-
Pump and
moto
r
Impeller
Clogging
Disassemble and
inspect
No clogging
-
Wear
Disassemble and
inspect
No abnormal condition
When worn out
Main shaft and its
surrounding area
Smooth rotation
Rotate by
hand
Rotation is smooth and
uniform (4-1)
-
Bearing (motor)
*2
Heat
Touch
Not unusually hot (5-1)
1 to 2 years
Rubber
parts
Oil seals,
etc.
-
-
No abnormal condition
1 to 2 years
Others (screws etc.)
-
-
No abnormal condition
As needed
Appearance
Unusual noise,
vibration
Listen
Visual check No abnormal condition
-
Insulation resistance
Between the ground
and each lead wire
Megger
tester
1 MΩ or more
-
*1
The timing of replacing consumables (as a guide) does not mean their guaranteed service life. The service life of
parts varies depending on the ambient conditions and the conditions for use.
*2
Long-life urea grease is used as lubricating grease in bearings. Use bearings into which urea grease is filled.