8-3
8.3 Maintenance check list
Table 8-3(a) Maintenance check list
Frequency
Consumables
Inspection point Inspection item Method Criterion
Daily
Half-yealyr
Yearly
Part name
Qty.
Replacement
cycle
Temperature
Measure
Between 0 and 40°C
䕿
Humidity Measure
85%RH or less
No condensation
䕿
Ambient
environment
Dust and other
contaminants
Check against the
specified range.
Visual
check
No dust or other contaminants
䕿
Voltage Measure The specified voltage is applied.
䕿
Power
Power terminal block
Voltage fluctuation Measure
Within the allowable fluctuation
range
䕿
Panel display, indicator
lights
Check if they are lit on
Visual
check
No abnormal condition 䕿
Setting values Setting values
Visual
check
As per the requirements 䕿
Operations
Operations in the
automatic mode
Visual
check
No abnormal condition 䕿
Startup pressure
Visual
check
As per the setting value 䕿
Stop pressure
Visual
check
As per the specifications 䕿
Number of starts time of
the unit
Visual
check
400 times or less 䕿
Cumulative operation time
of each pump
Visual
check
Check the adequacy. 䕿
Cumulative number of
starts of each pump
Visual
check
Check the adequacy. 䕿
Operating conditions
Alarm log
Visual
check
No alarms are active.
Check the past alarms.
䕿
Ground fault interrupter Operation point
Visual
check
Not tripped 䕿
Loose screws Tighten Securely tightened
䕿
Trace of heating
Visual
check
No discoloration 䕿
Power supply terminal
block,
Control circuit terminal
block,
Power line
Adhesion of dust, damage
Visual
check
No dust or damage 䕿
Open/close the cover. By hand Smoothly opens/closes
䕿
Cover and its installation
status
Loose connections Tighten Securely tightened
䕿
Structure and
appearance
Insulator
Visual
check
No cracks or deformation 䕿
Inverter Looseness of screws Tighten Securely tightened 䕿 Inverter 1 to 2
Every
5 years
Printed board Operation
Visual
check
No abnormal condition 䕿 Printed board 1
Every
5 years
Noise, vibration Listen No abnormal condition
䕿
Control panel
Cooling fan
Operation
Visual
check
Normal rotation 䕿
Cooling fan 1 to 2
Every
3 years
Warning
Before carrying out inspection that requires disassembly and service, be sure
to turn off the main power supply. Otherwise, it may lead to an electric shock,
and/or causes the pump to start up suddenly in the automatic mode etc., thus
exposing the personnel to great danger.
Caution
Only the service personnel with special knowledge of repairs are allowed to
disassemble the unit. For work such as replacement of parts, repairs, or
inspection that requires disassembly of the unit, be sure to contact a
specialized vendor or the service center specified by Teral. Incorrect work
may cause a failure or accident.
Caution
Do not perform an insulation resistance test on the control panel. Before
performing an insulation resistance test on the motors, remove the wires from
the control panel. Otherwise, it may lead to a failure in the control panel.
Caution
Replace any packing and O-rings during inspection involving disassembly.
Otherwise, it may lead to water leakage.
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