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Maintenance, inspection and repair
6.1 Maintenance
Check the following at least once every three days when using the pump.
(1) Check that the pump oil amount is within the red circle on the oil level gauge.
(2) Check that the pump oil is not discolored.
(3) Check that there are no abnormal noises.
(4) Check that the motor voltage is normal.
(5) Check that there are no oil leaks.
If any problem is found, deal with it according to “6.4 Trouble checklist”.
6.2 Periodic
inspection
While it is necessary to change the details of the inspection according the usage
condition of the pump, check the following items periodically. This will help prevent
the pump from malfunctioning and increase its lifetime.
(1) Always turn off the power supply before inspecting the equipment. Never turn the
power supply on during an inspection. Failure to do so may result in injury.
(2) The pump is hot immediately after use. Wait for it to cool before inspecting.
Failure to do so may result in burns.
(1) Inspecting the electric cord and wiring
Cracks in the electric cord or loose terminals may lead to electric shocks or injuries.
If any cracks are found in the electric cord, replace it. If any loose terminals are found,
tighten them.
(2) Pump oil periodic change
The pump oil deteriorates with operation of the pump. Use the oil level gauge to
check the pump oil for cloudiness and viscosity, and change the oil before it
deteriorates. By periodically changing the pump oil, the deterioration of the pump
performance can be avoided and the lifetime of the pump can be lengthened.
If the pump is operated with large amounts of moisture, etc. in the pump oil, the
ultimate pressure is increased and the moving parts of the pump with move less
smoothly finally resulting in the pump breaking down. Change the pump oil according
to “6.3 Pump oil change”.
Caution
