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Interval
Monthly
EveryDay
Yearly
Inspection Item
Every
2 to 5 years
Measuring insulation resistance
Note: The motor must be inspected if the insulation resistance is considerably lower than
that obtained during the last inspection.
Note: Contact the dealer from whom you purchased the equipment, or the Tsurumi sales
office in your area to inspect and replace the mechanical seal.
Note: Refer to the section "Oil Inspection and Change Procedures" on page 14 of this
manual.
Note: Refer to details of oil inspection and oil change (p.14)
Note: Contact the dealer from whom you purchased the equipment, or the Tsurumi sales
office in your area to overhaul the pump.
Overhaul
Change oil
Change mechanical seal
Change the oil every 12 months or after 4,000 hours of use, whichever comes first.
Inspecting oil
Check the oil every 6 months or after 2,000 hours of use, whichever comes first.
Inspecting the impeller
Power supply voltage variation (within ±10% of the rated voltage)
Measure power supply voltage
Insulation resistance reference value = 1MΩ min.
The pump must be overhauled even if the pump appears normal during operation.
The pump may need to be overhauled earlier if it is used continuously or repeatedly.
If the performance level has decreased considerably,the impeller
may be worn.
Semi-yearly
Inspection of lifting chain or rope
Replace if damage, corrosion, or wear has occurred to the chain
or the rope. Remove if foreign object is attaching to it.
To be below the rated current
Measure operating current
