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Note:
Frequency
Monthly
Daily
Semi-annually
Inspection Items
Annually
Every
2 to 5 years
Measuring the operating current
Measure insulation resistance
Note: If the insulation resistance has become notably lower than the previous inspection, an
inspection of the motor will be necessary.
Note: Consult with your nearest dealer or Tsurumi representative regarding overhauls.
Note: Specialized know-how is required for inspecting and replacing the mechanical seal.
Consult with your nearest dealer or Tsurumi representative.
Note: See below for details of oil inspection and oil change.
Overhaul
Change oil
Change mechanical seal
Change the oil every 12 months or after 6,000 hours of use, whichever comes first.
Oil inspection
Check the oil every six months or after 3,000 hours of use, whichever comes first.
Pump inspection A noticeable drop in performance may indicate wear in the impeller etc., or else
clogging of the strainer stand, etc. Remove the clogged debris,and replace any
worn parts.
Designated oil : Turbine oil VG32
Power supply voltage tolerance
= within ±5% of the rated voltage
Measuring the power voltage
To be below the rated current
Reference insulation resistance = 1M
Ω
or greater
This should be carried out even if there are no problems with the pump.
The frequency depends on how continuously the pump is in use.
Inspection of lifting wire rope or chain
Replace if damage, corrosion, or wear has occurred to the wire rope or the chain.
Remove if foreign object is attaching to it.
Inspecting the electrode
Clean the electrode periodically with an abrasive paper or the like.