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6.Maintenance, inspection, repair
6.1 Maintenance
Check and confirm the following items at least every 3 days while operating.
(1)
Oil level is in red ring marking of oil gauge.
(2)
Change in color of the oil.
(3)
Usual sound or not?
(4)
Motor current, normal or not?
(5)
Oil leak from oil seal assembly.
If detecting any problems, take an action needed by 「
6.5 Trouble shooting
list
」.
6.2 Scheduled inspection
The inspection items should be changed for operational conditions of the pump.
Inspecting the following items will be effective to avoid any troubles or to
extend the pump life.
・Turn off power switch certainly before inspection. Never turn on power
switch for inspection. It may cause personal injuries.
・Directly after stopping the pump, the pump body is high temperature.
Wait until it will be cooled down, and inspect it. Burning hazard.
(1) Periodical changing the pump oil
Pump oil should be deteriorated with operating time. After checking the oil
contamination and viscosity, change the oil quickly. Periodical changing
the pump oil can suppress the performance deterioration, also elongate the
pump life.
If continuing the pump operation in the situation with much water, the
ultimate pressure comes up to higher pressure. Then the pump motion become
dull by mechanical friction, the pump may cause damage. Change the pump oil
by「
6.3 Oil change
」.
