Tsurumi Pump LB-250, Operation Manual

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Page 17: ...facturer will not assume any liability After reading this Operation Manual keep it in a location that is easily accessible so that it can be re ferred to whenever information is needed while operating...

Page 18: ...N may at times lead to a more serious problem In either case the categories pertain to safety related items and as such must be observed carefully WARNING CAUTION NOTE Explanation of Symbols PRECAUTIO...

Page 19: ...ical leakage occurs it can cause electrical shock When changing power connection is needed to correct the direction of rotation be sure to turn off the power supply earth leakage circuit breaker etc a...

Page 20: ...assembly always perform a test operation before resuming use of the product Improper assembly can result in electrical leakage electrical shock fire or water leakage In case any abnormality excessive...

Page 21: ...its voltage and frequency speci cations 2 PART NAMES Cabtyre Cable Mechanical Seal Lubricant Shaft Sleeve V Ring Oil Casing Wearing Impeller Handle Hose Coupling Oil Plug Oil Lifter Strainer Stand Pum...

Page 22: ...to verify the insulation resistance of the motor Note The weight mass given above is the operating weight of the pump itself not including the cabtyre cable Standard speci cations 50 60Hz Bore mm Mode...

Page 23: ...age the cable which may cause a current leakage electrical shock or re CAUTION The rope for suspending the pump during its installation must be of a thickness that accommodates the weight of the pump...

Page 24: ...connect the ground wire to a gas pipe water pipe lightning rod or telephone ground wire Improper grounding could cause electrical shock Connecting the Power Plug WARNING Before inserting the power plu...

Page 25: ...or The pump is equipped with a built in motor protector circle thermal protector If a current overload or overheating occurs under the symptoms given below the pump will stop automatically to protect...

Page 26: ...s accident involving injury 4 When using a generator as much as possible avoid operating the pump in conjunction with other types of equipment COUNTERMEASURE Interchange any two of the three wires des...

Page 27: ...the pump to the pipe and submerge it in water 4 Operate the pump for a short time 3 to 10 minutes and perform the following checks Using an AC ammeter clamp measure the operating current at the phase...

Page 28: ...Refer to section Oil Inspection and Change Procedures below for further detail Interval Monthly Daily Semi yearly Inspection Item Yearly Once every 2 to 5 years Measuring the operating current Measuri...

Page 29: ...and drain the oil completely Pour a speci ed volume of oil into the oil ller inlet Note The drained oil must be disposed of properly to prevent it from being released into the sewer or rivers The pack...

Page 30: ...the disassembly and reas sembly of the sealing portion i e mechanical seal and of the motor require a special ized facility including vacuum and electrical test equipment For these operations con tac...

Page 31: ...e liner im peller and pump casing after removing debris from them such as sand 2 Mount the v ring onto the outside of the shaft sleeve as shown in the drawing When doing so do not apply oil or other l...

Page 32: ...e block under the pump to prevent the pump from drawing in excess mud 1 Foreign matter is wedged in the impeller causing the motor protector to trip 2 The voltage is too low 3 A 50Hz unit is used at 6...