TSURUMI PUMP LB-480A Operating instructions

Brand: TSURUMI PUMP

Model: LB-480A

Type: Operating instructions

This manual is also suitable for

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The mark indicates an action that must be taken, or instructs how to perform a task. The symbol

inside the mark describes the precaution in more detail ("provide ground work", in the case of the

example on the left).

The mark indicates a WARNING or CAUTION item. The symbol inside the mark describes the

precaution in more detail ("electrical shock", in the case of the example on the left).

: Operating the equipment improperly by failing to observe this precaution may possibly

cause injury to humans and other physical damage.

: Operating the equipment improperly by failing to observe this precaution may possibly

lead to death or injury to humans.

: Gives information that does not fall in the WARNING or CAUTION categories.

The mark indicates a prohibited action. The symbol inside the mark, or a notation in the vicinity of

the mark describes the precaution in more detail ("disassembly prohibited", in the case of the

example on the left).

Be sure to thoroughly read and understand the SAFETY PRECAUTIONS given in this section before using

the equipment in order to operate the equipment correctly.

The precautionary measures described in this section are intended to prevent danger or damage to you or

to others. The contents of this manual that could possibly be performed improperly are classified into two

categories: WARNING, and CAUTION. The categories indicate the extent of possible damage

or the urgency of the precaution. Note however, that what is included under CAUTION 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:

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Do not operate the product under any conditions other than those for which it is speci-

fied. Failure to observe the precaution can lead to electrical leakage, electrical

shock, fire, water overflow or other problems.

CAUTION

Frequency

Voltage

WARNING

Power

Supply

Capacity

When transporting the product, pay

close attention to its center of

gravity and mass. Use an appropri-

ate lifting equipment to lift the unit.

Improper lifting may result in the fall

of the product which could cause

damage of the product or human injury.

Electrical wiring should be

performed in accordance with all

applicable regulations in your

country. Imperfect wiring or

neglecting the installation of

proper equipment will cause

electrical leakage or fire.

Use a power outlet that has a sufficient rating and has been exclusively

provided for the pump. If the power outlet is shared with other equipment,

it can lead to an abnormal heat of the outlet and can cause fire as a

result.

Install the product properly in

accordance with this instruction

manual. Improper installation

may result in electrical leakage,

electrical shock, fire, water

leakage, or injury.

Provide a secure grounding

dedicated for the product. Never

fail to provide an earth leakage

circuit breaker and a thermal

overload relay in your starter or

control panel (Both available on

the market). If an electrical

leakage occurs by due to a

product failure, it may cause

electrical shock.



CAUTION

Do not scratch, fold, twist, make

alterations, or bundle the cable, or

use it as a lifting device. The cable

may be damaged, which may

cause electrical leakage, short-

circuit, electrical shock, or fire.

Be sure to provide a ground wire

securely. Do not connect the

ground wire to a gas pipe,

water pipe, lightening rod, or

telephone ground wire. Improper

grounding could cause electri-

cal shock.

Do not use the cabtyre cable, power

plug, or power outlet if it is damaged

or it is not closely fitted. Connect

every conductor of the cabtyre cable

securely to the terminals. Failure to

observe this can lead to electrical

shock, short-circuit, or fire.

When the product will be carried by

hand, decide the number of persons

considering the mass of the product.

When lifting up the product, do

not attempt to do it by simply

bowing from the waist. Use the

knees, too, to protect your back.

This pump is neither dust-proof nor

explosion-proof. Do not use it at a

dusty place or at a place where

toxic, corrosive or explosive gas is

present. Use in such places

could cause fire or explosion.

Prevent a metallic object or dust

from sticking to the power plug.

Adhesion of foreign object to the

plug could cause electrical

shock, short-circuit, or fire.

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CAUTION

WARNING

Never try to operate the pump if

somebody is present in the pump

sump. If an electrical 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.), and perform the work

after making sure that the impeller

has stopped completely. Failure to

do so may lead to electrical

shock, short-circuit, or injury.

Never start the pump while it is

suspended, as the unit may jerk

and could lead to injury.

When inspecting the pump, be sure

to turn off the power supply (earth

leakage circuit breaker, etc.) so that

the pump may not start acciden-

tally. Failure to do so may lead to

a serious accident.

Do not operate the product under

any voltage other than described

on the nameplate with the voltage

variation limit within ±10%. If it is

operated with a generator, it is

strongly suggested not to operate

other equipment with the same

generator. Failure to observe

this caution may cause

malfunction and breakdown of

the product, which may lead to

electrical leakage or electrical

shock.

Do not touch the product with bare

hands during or immediate after

the operation, as the product may

become very hot during operation.

Failure to observe this caution

may lead to be burned.

Do not use the product in a liquid

other than water. Use in oil, salt

water or organic solvents will

damage it, which may lead to

electrical leakage or electrical

shock.

Do not run the product dry or

operate it with its gate valve

closed, as doing so will damage

the product, which may lead to

electrical leakage or electrical

shock.

For water

only

Rated

Voltage

STOP



CAUTION

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!

Failure to observe

this caution could cause it to

malfunction or to operate abnor-

mally, which may lead to electri-

cal leakage or electrical shock.



! doing so

will damage the product, which

may lead to electrical leakage or

electrical shock.

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Deterioration of the insulation

may lead to electrical leakage,

electrical shock, or fire.

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CAUTION

WARNING

Absolutely turn off the power

supply or disconnect the plug

before starting maintenance or

inspection. Do not work with wet

hands. Failure to observe these

cautions may lead to electrical

shock or injury.

After reassembly, 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

vibration, unusual noise or odor) is

found in the operation, turn the

power off immediately and consult

with the dealer where it was

purchased or Tsurumi representa-

tive. Continuing to operate the

product under abnormal condi-

tions may result in electrical

shock, fire, or water leakage.

Do not disassemble or repair any

parts other than those designated

in the operation manual. If repairs

are necessary in any other than

the designated parts, consult with

the dealer where it was

purchased or Tsurumi representa-

tive. Improper repairs can

result in electrical leakage,

electrical shock, fire, or water

leakage.

Test

operation

STOP

OFF

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In case of power outage, turn off the power supply. The product will resume

operation when the power is restored, which presents serious danger to

people in the vicinity.

WARNING

power

outage

OFF

CAUTION

Never use the product for potable water. It may present a danger to human

health.

Potable

Water

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,13*!2)-, *!11

0-2%#2)-,612%+

"3)*2),

),)!230%.0-2%#2-0 

)0#*%2(%0+!*.0-2%#2-0-2(%0+-$%*1

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-,,%#2)-, -1%-3.*),'

-2-0

Bore

Model Output

Phase

Max.capacity

m3/min

GPM

Starting

Method

WHT

40 LB-250 0.25 1 Capacitor-Run 10.4

40 LBT-250 0.25 3 Direct-on-line 10.0

50 LB-480 0.48 1 Capacitor-Run

Capacitor-Run

10.4

50 LBT-480 0.48 3 Direct-on-line 10.0

40 LB-250A 0.25 1 11.0

50 LB-480A 0.48 1 11.0

50 LB-800 0.75 1 Capacitor-Run 13.2

50 LB-800A 0.75 1

Max.Head

ft.

8.8/8.6

28.9/28.2

8.8/8.6

28.9/28.2

11.0/12.0

36.1/39.5

11.0/12.0

36.1/39.5

8.8/8.6

28.9/28.2

11.0/12.0

36.1/39.5

15.0/18.0

49.0/59.0

15.0/18.0

49.0/59.0

0.190

50.2

0.190

50.2

0.220/0.240

58.1/63.4

0.220/0.240

58.1/63.4

0.190

50.2

0.220/0.240

58.1/63.4

Capacitor-Run 50 LBZ-480 0.48 1 10.4

11.0/12.0

36.1/39.5

0.220/0.240

58.1/63.4

0.31

82.0

50 LBT-800 0.75 3 Direct-on-line 12.8

15.0/18.0

49.0/59.0

0.31

82.0

0.31

82.0

Capacitor-Run 13.8

50 LBZ-800 0.75 1

15.0/18.0

49.0/59.0

0.31

82.0

Capacitor-Run 13.2

,167$//$7,21

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ZKLFKPD\OHDGWRLQMXU\

 :KHQLQVWDOOLQJRUPRYLQJWKHSXPSQHYHUVXVSHQGWKHSXPSE\WKHFDEW\UH

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HOHFWULFDOVKRFNRUÀUH

WARNING

CAUTION

+RZWRXVHOHYHOUHOD\XQLW/%$$$/%=

 'RQRWPHDVXUHWKHLQVXODWLRQUHVLVWDQFHZLWKLQVXODWLRQ

UHVLVWDQFHWHVWHUIRUIROORZLQJSDUWV,WFDXVHVDWURXEOH

 'RQRWOLIWRUKDQJWKHOHYHOUHOD\XQLW,WZLOOGDPDJHDQG

FDXVHDOHDNDJHDQHOHFWULFVKRFNDQGDÀUH

 ,QWKHFDVHRIWKHÁRDWW\SHGRQRWOLIWLWE\WKHÁRDWFDEOH

DVLWZLOOGDPDJHWKHFDEOHDQGOHDGWRDOHDNDJHHOHFWULFDO

VKRFNDQGÀUH

CAUTION

 EHWZHHQWKHSOXJ  EHWZHHQWKHHOHFWURGHRID

OHYHOUHOD\XQLW

 EHWZHHQWKHHOHFWURGHRIDOHYHO

UHOD\XQLWDQGDSOXJ

 'RQRWPDNH³RQ´SHULRGEHWZHHQWKHRWKHUOHYHOUHOD\XQLW

3UHSDUDWLRQIRU,QVWDOODWLRQ

6LQJOHSKDVHSRZHUVXSSO\

8VHDPHJJHUWRPHDVXUHWKHUHVLVWDQFHEHWZHHQWKHWLSRIWKH

FDEW\UHFDEOHSOXJDQGWKHJURXQGWHUPLQDOWRYHULI\WKHLQVXODWLRQ

UHVLVWDQFHRIWKHPRWRU

0HDVXUHWZLFHWKHUHVLVWDQFHEHWZHHQHDFKRIWKHWZRWLSVRIWKH

SOXJDQGJURXQG

7KLVGLDJUDPVKRZVDSLQSOXJW\SH



7KHLQVXODWLRQUHVLVWDQFHUHIHUHQFHYDOXHRI0ȍPLQLPXPLVEDVHGRQDQHZRUUHSDLUHGSXPS)RUUHIHU

HQFHYDOXHVRIDSXPSWKDWKDVDOUHDG\EHHQSXWLQWRRSHUDWLRQUHIHUWR0DLQWHQDQFHDQG,QVSHFWLRQRI

WKLVPDQXDO

Note:

7KUHHSKDVHSRZHUVXSSO\

8VHDPHJJHUWRPHDVXUHWKHUHVLVWDQFHEHWZHHQHDFK

FRUHRIWKHFDEW\UHFDEOHDQGWKHJUHHQJURXQGZLUHWR

YHULI\WKHLQVXODWLRQUHVLVWDQFHRIWKHPRWRU

 %HZDUHWKDWWKHSRZHUSOXJYDULHVE\FRXQWU\RUUHJLRQ

CAUTION





 





 

   



,QVXODWLRQUHVLVWDQFHUHIHUHQFHYDOXH 0ȍPLQLPXP

  

Hose Band

Hose

Discharge Connection

Hose Coupling



,QVWDOOLQJWKH)ORDW

6HWWKHOHQJWKRIWKHÀRDWOHDGZLUHWRWKHGLPHQVLRQLQGLFDWHGEHORZ

)DLOXUHWRREVHUYHWKLVZLOOOHDGWRDQLPSURSHURSHUDWLRQ

 ,IWKHSXPSGUDZVLQDODUJHDPRXQWRIPXGLWFRXOGFDXVHWKHSXPSWRZHDU

SUHPDWXUHO\DQGOHDGWRDPDOIXQFWLRQFXUUHQWOHDNDJHDQGHOHFWULFDOVKRFN

CAUTION

 2SHUDWHWKHSXPSXSULJKW,IWKHUHLVWKHOLNHOLKRRGRIWKHSXPSGUDZLQJLQH[FHVVPXGSODFHDFRQFUHWH

EORFNXQGHUWKHSXPS

 5RXWHWKHKRVHDVVWUDLJKWDVSRVVLEOH([FHVVLYHEHQGLQJRIWKH

KRVHFRXOGREVWUXFWWKHÀRZRIZDWHUUHGXFHWKHSXPSLQJYROXPH

RUFORJWKHSXPSZLWKPXGWKXVGLVDEOLQJWKHSXPSLQJIXQFWLRQ

 ,IWKHKRVHLVNLQNHGDWLWVEDVHLWZLOOFUHDWHDLUSRFNHWVLQWKH

SXPSFDXVLQJWKHSXPSWRRSHUDWHGU\7RSUHYHQWWKLVIURP

RFFXUULQJVWUDLJKWHQWKHEHQGZKLOHRSHUDWLQJWKHSXPS

 ,IWKHKRVHEHFRPHVNLQNHGDVVKRZQLQ$UHSRVLWLRQWKHKRVH

FRXSOLQJVRWKDWLWIDFHVDVVKRZQLQ%/RRVHQWKHFDSQXWRQ

WKHKRVHFRXSOLQJWRFKDQJHLWVGLUHFWLRQ



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

)RUWKHZDWHUOHYHOUHTXLUHGIRURSHUDWLQJWKHSXPSUHIHUWRWKH

H[WHUQDOGLPHQVLRQGUDZLQJZKLFKLVSURYLGHGVHSDUDWHO\



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WKHZDWHUWRÀRZEDFNZKHQWKHSXPSKDVEHHQVWRSSHG&RQ

YHUVHO\LIWKHHQGRIWKHKRVHLVORFDWHGDWDOHYHOWKDWLVORZHU

WKDQWKHVRXUFHZDWHUVXUIDFHZDWHUPD\FRQWLQXHWRÀRZRXW

HYHQDIWHUWKHSXPSKDVEHHQVWRSSHG

Note:

 7KHURSHIRUVXVSHQGLQJWKHSXPSGXULQJLWV

LQVWDOODWLRQPXVWEHRIDWKLFNQHVVWKDWDFFRPPRGDWHV

WKHZHLJKWRIWKHSXPS:KHQXVLQJDFKDLQPDNH

VXUHWKDWWKHFKDLQGRHVQRWEHFRPHWZLVWHG)DLOXUH

WRREVHUYHWKHVHSUHFDXWLRQVFRXOGFDXVHWKHURSHRU

FKDLQWREUHDNDQGWKHSXPSWRIDOODQGEUHDNZKLFK

FRXOGOHDGWRSHUVRQDOLQMXU\

CAUTION

 +DQGOHWKHSXPSFDUHIXOO\ZLWKRXWDSSO\LQJVKRFNWRLWVXFKDVE\GURSSLQJLW7R

VXVSHQGWKHSXPSGRVRPDQXDOO\RUE\DWWDFKLQJDURSHRUFKDLQWRLWVKDQGOHV

Rope

Backflow Outflow

Pump stopped

(A)

(B) Cap Nut



Pump model L

LBZ-800

LBZ-480 150mm

200mm



(OHFWULFDO:LULQJ:RUN

 $OOHOHFWULFDOZRUNPXVWEHSHUIRUPHGE\DQDXWKRUL]HGHOHFWULFLDQ

LQFRPSOLDQFHZLWKORFDOHOHFWULFDOHTXLSPHQWVWDQGDUGVDQGLQWHUQDO

ZLULQJFRGHV1HYHUDOORZDQXQDXWKRUL]HGSHUVRQWRSHUIRUPHOHFWULFDO

ZRUNEHFDXVHLWLVQRWRQO\DJDLQVWWKHODZEXWLWFDQDOVREHH[WUHPHO\

GDQJHURXV

 ,PSURSHUZLULQJFDQOHDGWRFXUUHQWOHDNDJHHOHFWULFDOVKRFNRUÀUH

 $EXVROXWHO\SURYLGHDGHGLFDWHGHDUWKOHDNDJHFLUFXLWEUHDNHUDQGDWKHUPDO

RYHUORDGUHDO\VXLWDEOHIRUWKHSXPSDYDLODEOHRQWKHPDUNHW)DLOXUH

WRIROORZWKLVZDUQLQJFDQFDXVHHOHFWULFDOVKRFNRUH[SORVLRQZKHQWKH

SURGXFWIDLOVRUDQHOHFWULFDOOHDNDJHRFFXUV

2SHUDWHZHOOZLWKLQWKHFDSDFLW\RIWKHSRZHUVXSSO\DQGZLULQJ

WARNING

*URXQGLQJ

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HOHFWULFDOVKRFN

 'RQRWFRQQHFWWKHJURXQGZLUHWRDJDVSLSHZDWHUSLSHOLJKWQLQJURGRU

WHOHSKRQHJURXQGZLUH,PSURSHUJURXQGLQJFRXOGFDXVHHOHFWULFDOVKRFN

WARNING

CAUTION

&RQQHFWLQJWKH3RZHU3OXJ

 %HIRUHLQVHUWLQJWKHSRZHUSOXJRUFRQQHFWLQJWKHZLUHVWRWKHWHUPLQDO

ERDUGPDNHVXUHWKDWWKHSRZHUVXSSO\LHFLUFXLWEUHDNHULVSURSHUO\

GLVFRQQHFWHG)DLOXUHWRGRVRPD\OHDGWRHOHFWULFDOVKRFNVKRUWRULQMXU\

FDXVHGE\WKHXQLQWHQGHGVWDUWLQJRIWKHSXPS

 'RQRWXVHGDPDJHGFDEW\UHFDEOHVSRZHUSOXJVRUORRVHSRZHURXWOHWV

)DLOXUHWRREVHUYHWKLVSUHFDXWLRQFRXOGOHDGWRHOHFWULFDOVKRFNVKRUWFLUFXLW

RUÀUH

)ROORZWKHGLDJUDPRQWKHULJKWWRFRQQHFWWKHSRZHU

WARNING

CAUTION

:KHQDVLQJOHSKDVHSRZHUVRXUFHLVXVHGFRQQHFWWKH

OHDGVWRWKHFRQWUROSDQHOWHUPLQDOVDVVKRZQLQWKHGLD

JUDPPDNLQJVXUHWKH\GRQRWEHFRPHWZLVWHGWRJHWKHU

:KHQXVLQJDWKUHHSURQJJURXQGHGSOXJFRQQHFWDVVKRZQLQWKHGUDZLQJ

 %HVXUHWRXVHDGHGLFDWHG

SRZHUVXSSO\ZLWKDJURXQG

OHDNDJHFLUFXLWEUHDNHU

CAUTION



7KHVKDSHRIWKHSOXJPD\GLIIHUIURPWKDWVKRZQLQ

WKHLOOXVWUDWLRQ

Note:

 %HZDUHWKDWWKHSRZHUSOXJ

YDULHVE\FRXQWU\RUUHJLRQ

CAUTION

7KLVGLDJUDPVKRZVDSLQSOXJW\SH

(/(&75,&$/:,5,1*

ingle Phase

L1-Red(Brown) G-Green

(Green/Y

ellow)

L2-White(Blue)

L1 L2 G Ground

Three Phase

U-Red(Brown) G-Green

(Green/Yellow)

W-Black(Black)

V-White

(Blue or Grey)

U V W G

Ground

:KHQDWKUHHSKDVHSRZHUVRXUFHLVXVHGFRQQHFWWKH

OHDGVWRWKHFRQWUROSDQHOWHUPLQDOVDVVKRZQLQWKHGLD

JUDPPDNLQJVXUHWKH\GRQRWEHFRPHWZLVWHGWRJHWKHU



Non-Automatic Circuit

LB-250 , LB-480

White(Blue)

Power Supply: Three-Phase

Non-Automatic Circuit

LBT-250 , LBT-480 , LBT-800

Red(Brown) Red

Black

White(Blue or Grey)

Black(Black)

White

Green(Green/Yellow)

Green

Frame

Grounding

Ground

Circle Thermal

Protector

Coil

Heater

Red Blue

Black

Capacitor

Aux.Coil

Main Coil

Miniature Protector

Power Supply:Single-Phase

Non-Automatic Circuit

LB-800

Power Supply:Single-Phase

Red(Brown) Red

White

Green

(Green/Yellow) Green

Frame Grounding

Ground

Automatic Operation Circuit ( Level Relay Uint)

LB-250A , LB-480A

Automatic Operation Circuit (for float type)

LBZ-480

LBZ-800

Level Relay Unit

Red Red

Ground

Red(Brown)

Black Triac

Black

White(Blue)

White

Green

(Green/Yellow)

Green

Frame

Grounding

Blue

Red

Black

Blue

Capacitor

Aux.

Coil

Main

Coil

Miniature

Protector

Transformer

Electrode

Automatic Operation Circuit (for electrode type)

LB-800A

Power Supply: Single-Phase

Level Relay Unit

Red

Ground

Red(Brown)

Black Triac

White(Blue)

White

Green

(Green/Yellow)

Green

Frame

Grounding

Capacitor

Aux.

Coil

Main

Coil

Transformer

Electrode

Power Supply: Single-Phase

Power Supply:

Single-Phase

Power Supply:

Single-Phase

Miniature

Protector

Red

Ground

Red(Brown)

White(Blue) White

Green

(Green/Yellow)

Green

Frame

Grounding

Capacitor

Aux.

Coil

Main

Coil

Circle Thermal Protector

Float Switch (Normally open contact)

Red

Ground

Red(Brown)

White(Blue) White Heater

Heater

Green

(Green/Yellow)

Green

Frame

Grounding

Capacitor

Aux.Coil

Main

Coil

Circle Thermal Protector

Red

Ground

Red(Brown)

White(Blue) White

Heater

Green

(Green/Yellow)

Green

Frame

Grounding

Capacitor

Aux.Coil

Main

Coil

Float Switch (Normally open contact)

0RWRU3URWHFWRU

7KHSXPSLVHTXLSSHGZLWKDEXLOWLQPRWRUSURWHFWRUFLUFOHWKHUPDOSURWHFWRUPLQLDWXUHSURWHFWRU

,IDFXUUHQWRYHUORDGRURYHUKHDWLQJRFFXUVXQGHUWKHV\PSWRPVJLYHQEHORZWKHSXPSZLOOVWRSDXWRPDWL

FDOO\WRSURWHFWWKHPRWRUUHJDUGOHVVRIWKHZDWHUOHYHODWWKHWLPHRIRSHUDWLRQ

([WUHPHÀXFWXDWLRQRISRZHUVXSSO\YROWDJH

3XPSRSHUDWHGXQGHURYHUORDGFRQGLWLRQ

3XPSRSHUDWHGDWRSHQSKDVHRUELQGLQJFRQGLWLRQ



$IWHUWKHPRWRUSURWHFWRUKDVWULSSHGWKHPRWRUDXWRPDWLFDOO\UHVXPHVLWVRSHUDWLRQ7KHUHIRUHPDNHVXUH

WRGLVFRQQHFWWKHFDEW\UHFDEOHIURPWKHWHUPLQDOERDUGRUWKHSRZHURXWOHWDQGHOLPLQDWHWKHFDXVHRIWKH

SUREOHP



'RQRWRSHUDWHWKHSXPSDWXQXVXDOO\ORZKHDGRUZLWKWKHLPSHOOHUFORJJHGZLWKGHEULV'RLQJVRZLOOQRW

RQO\SUHYHQWWKHSXPSIURPDWWDLQLQJLWVIXOOSRWHQWLDOEXWPD\DOVRJHQHUDWHDEQRUPDOQRLVHDQGYLEUDWLRQ

DQGGDPDJHWKHSXPS

Note:

(OHFWULFDO&LUFXLW'LDJUDPV



3ULRUWR2SHUDWLRQ

 2QFHDJDLQFKHFNWKHQDPHSODWHRIWKHSXPSWRYHULI\WKDWLWVYROWDJHDQGIUHTXHQF\DUHFRUUHFW

 ,PSURSHUYROWDJHDQGIUHTXHQF\RIWKHSRZHUVXSSO\ZLOOSUHYHQWWKHSXPS

IURPDWWDLQLQJLWVIXOOSRWHQWLDODQGPD\DOVRGDPDJHWKHSXPS



9HULI\WKHVSHFVRQWKHSXPSVQDPHSODWH

 &KHFNWKHZLULQJSRZHUVXSSO\YROWDJHWKHFDSDFLW\RIWKHJURXQGOHDNDJHFLUFXLWEUHDNHUDQGWKH

LQVXODWLRQUHVLVWDQFHRIWKHPRWRU

 ,QVXODWLRQUHVLVWDQFHUHIHUHQFHYDOXH 0їPLQLPXP



7KHLQVXODWLRQUHVLVWDQFHUHIHUHQFHYDOXHRI0ȍPLQLPXPLVEDVHGRQDQHZRUUHSDLUHGSXPS)RUUHIHU

HQFHYDOXHVRIDSXPSWKDWKDVDOUHDG\EHHQSXWLQWRRSHUDWLRQUHIHUWR0DLQWHQDQFHDQG,QVSHFWLRQ

$GMXVWWKHVHWWLQJRIWKHWKHUPDOUHOD\LH(UHOD\WRWKHSXPSVUDWHGFXUUHQW



9HULI\WKHUDWHGFXUUHQWRQWKHSXPSVQDPHSODWH

CAUTION

Note:

121$8720$7,&23(5$7,21

7ULDO2SHUDWLRQ

 1HYHUVWDUWWKHSXPSZKLOHLWLVVXVSHQGHGDVWKHSXPSPD\MHUNDQGFDXVH

DVHULRXVDFFLGHQWLQYROYLQJLQMXU\

 2SHUDWHWKHSXPSIRUDVKRUWWLPHWRVHFRQGVDQGYHULI\WKHGLUHFWLRQRIWKHURWDWLRQRIWKHLPSHOOHU

2EVHUYHWKHSXPSXQLWIURPDERYHDQGLILWVUHFRLOLVLQWKHFRXQWHUFORFNZLVHGLUHFWLRQWKHGLUHFWLRQRI

LWVURWDWLRQLVFRUUHFW

 0DNHVXUHWRFKHFNWKHSXPSVGLUHFWLRQRIURWDWLRQZLWKWKHSXPSH[SRVHG

WRWKHDWPRVSKHUH2SHUDWLQJWKHSXPSLQUHYHUVHZKLOHLWLVVXEPHUJHGLQ

ZDWHUZLOOGDPDJHWKHSXPSZKLFKPD\OHDGWRFXUUHQWOHDNDJHDQGHOHFWULFDO

VKRFN

 7RUHYHUVHWKHURWDWLRQWKHIROORZLQJFRXQWHUPHDVXUHVPXVWEHWDNHQ

WARNING

CAUTION

 %HIRUHFKDQJLQJWKHFRQQHFWLRQVIRUUHYHUVH

URWDWLRQPDNHVXUHWKDWWKHSRZHUVXSSO\

LHFLUFXLWEUHDNHULVSURSHUO\GLVFRQQHFWHG

DQGWKDWWKHLPSHOOHUKDVVWRSSHG

FRPSOHWHO\)DLOXUHWRREVHUYHWKLVPD\OHDG

WRHOHFWULFDOVKRFNVKRUWRULQMXU\

COUNTERMEASURE

 ,QWHUFKDQJH DQ\ WZR RI WKH WKUHH ZLUHV GHVLJQDWHG 8 9 DQG :

UHVSHFWLYHO\

WARNING

 :KHQXVLQJDJHQHUDWRUDVPXFKDVSRVVLEOHDYRLGRSHUDWLQJWKHSXPSLQFRQMXQFWLRQZLWKRWKHUW\SHV

RIHTXLSPHQW



DQGDUHDSSOLHGWRWKHWKUHHSKDVHSXPSV

Note:

23(5$7,21

Example:

U V W G

Interchanging

phases V and W

Ground



COUNTERMEASURE

 ,IWKHSRZHUVXSSO\YROWDJHGHYLDWHVIURPWKHYDULDWLRQYDOXHWKHFDXVHRIWKHGHYLDWLRQPD\EHWKHFDSDFLW\RI

WKHSRZHUVXSSO\RUWKHH[WHQVLRQFDEOHWKDWLVXVHG5HIHUWRVHFWLRQ(OHFWULFDO:LULQJWRRSHUDWHWKHSXPS

LQWKHFRUUHFWPDQQHU

COUNTERMEASURE

 %HFDXVH DQ RYHUORDG FRQGLWLRQ PD\ EH SUHVHQW DW WKH SXPS PRWRU LI WKH

RSHUDWLQJFXUUHQWH[FHHGVWKHUDWHGFXUUHQWIROORZWKHLQVWUXFWLRQVLQVHFWLRQ

,QVWDOODWLRQWRRSHUDWHWKHSXPSLQWKHFRUUHFWPDQQHU

 &RQQHFWWKHSXPSWRWKHSLSHDQGVXEPHUJHLWLQZDWHU

 2SHUDWHWKHSXPSIRUDVKRUWWLPHWRPLQXWHVDQGSHUIRUPWKHIROORZLQJFKHFNV

8VLQJDQ$&DPPHWHUFODPSPHDVXUHWKHRSHUDWLQJFXUUHQWDWWKHSKDVHV8

9DQG:WKDWDUHFRQQHFWHGWRWKHWHUPLQDOERDUG

8VLQJDQ$&YROWPHWHUWHVWHUPHDVXUHWKHYROWDJHDWWKHWHUPLQDOERDUG

3RZHUVXSSO\YROWDJHYDULDWLRQ ZLWKLQRIWKHUDWHGYROWDJH

 ,QFDVHWKHSXPSH[KLELWVDQDEQRUPDOFRQGLWLRQVXFKDVDFRQVLGHUDEOH

DPRXQWRIYLEUDWLRQQRLVHRUVPHOOGLVFRQQHFWWKHSRZHUVXSSO\

LPPHGLDWHO\DQGFRQWDFWWKHGHDOHUZKHUH\RXSXUFKDVHGWKHHTXLSPHQWRU

7VXUXPLVVDOHVRIÀFHLQ\RXUDUHD,IWKHSXPSFRQWLQXHVWREHXVHGLQWKH

DEQRUPDOVWDWHLWPD\FDXVHFXUUHQWOHDNDJHHOHFWULFDOVKRFNRUÀUH

 3URFHHGZLWKWKHQRUPDORSHUDWLRQLIQRDEQRUPDOFRQGLWLRQVDUHIRXQGGXULQJWKHWULDORSHUDWLRQ

CAUTION

2SHUDWLRQ

 7KHSXPSXQLWPD\EHH[WUHPHO\KRWGXULQJRSHUDWLRQ7RSUHYHQWEXUQVGR

QRWWRXFKWKHSXPSXQLWZLWKEDUHKDQGVGXULQJRUDIWHUWKHRSHUDWLRQ

3D\DWWHQWLRQWRWKHZDWHUOHYHOGXULQJWKHSXPSRSHUDWLRQ7KHSXPSPD\EHFRPHGDPDJHGLILWLVDOORZHG

WRRSHUDWHGU\

'XHWRDQRYHUORDGRSHUDWLRQRUDSXPSPDOIXQFWLRQLIWKHPRWRUSURWHFWRUWULSVWRVWRSWKHSXPSPDNHVXUH

WRHOLPLQDWHWKHFDXVHRIWKHSUREOHPEHIRUHUHVWDUWLQJ

7RRSHUDWHDVXEPHUVLEOHSXPSLQFOXGLQJDXWRPDWLFRSHUDWLRQVHWWKHZDWHUOHYHOVRWKDWWKHSXPSZLOO

RSHUDWHDERXWWLPHVSHUKRXU



$ODUJHDPRXQWRIDPSHUDJHÀRZVZKHQDVXEPHUJLEOHSXPSLVVWDUWHGFDXVLQJWKHWHPSHUDWXUHRILWVZLQG

LQJVWRULVHUDSLGO\%HZDUHWKDWDIUHTXHQWVWRSDQGJRRSHUDWLRQRIWKHSXPSZLOODFFHOHUDWHWKHGHWHULRUD

WLRQRIWKHLQVXODWLRQRIWKHPRWRUZLQGLQJVDQGWKXVDIIHFWWKHXVHOLIHRIWKHPRWRU

WARNING

Note:

2SHUDWLQJ:DWHU/HYHO

 'RQRWRSHUDWHWKHSXPSEHORZWKH&:/&RQWLQXRXV5XQQLQJ:DWHU/HYHO

LQGLFDWHGEHORZ)DLOXUHWRREVHUYHWKLVFRQGLWLRQPD\UHVXOWLQGDPDJHWR

WKHSXPSHOHFWULFDOOHDNDJHRUHOHFWULFDOVKRFN

CAUTION

U V G

Ground

C.W

.L.

Pump Model C.W.L.

(mm)

LB-250 50

LBT-250 50

LB-480 50

LBT-480 50

LBT-800

LB-800

UVWG

Ground

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Check float switch operation

Move

Float Switch

115mm (LB-250A/480A)

170mm (LB-800A)

The lowest starting level

In case o

orced starting

Level Relay Unit

Screw driver

more than one (1) second

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Start

Operation

(Drainage)

Level Relay Unit Pump

Water

Level Condition

Drop

[Switch on]

Operation

(Drainage)

Stop

Operation

(Drainage)

Start

Operation

(Drainage)

Drop

Rise

Drop

The draining of water by the timer lasts

approximately 1 minute.

(Detection Time : more than one (1) second)

(Electrodes open Trips the timer)

(Detection Time : more than one (1) second)

Level Relay

Unit

Level Relay Unit

Electrode

※

When the water level rises and the water

surface comes in contact for more than one

(1) second with the electrodes, the pump will

restart.

The pump will stop 1 minute later.

The pump will also stop after a continuous

dry run, in some cases.

If the water surface comes in contact for more than

one (1) second with the electrodes within 1 minute,

the pump will operate continuously even though the

timer has tripped.

As the water level drops and the water

surface recedes from the electrodes, the

timer trips to drain water.

The electrodes of the level relay unit are

submerged, causing the current to operate

the pump.

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Note:

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Interval

Monthly

Daily

Semi-yearly

Inspection Item

Yearly

Once every

2 to 5 years

Measuring the operating current To be within the rated current

Measuring the insulation resistance Insulation resistance reference value = 1MΩ minimum

[NOTE] The motor must be inspected if the insulation resistance is considerably lower

than the last inspection.

Inspecting oil

[NOTE] The inspection and replacement of the mechanical seal requires specialized

equipment. To have this operation performed, contact the dealer where this

equipment was purchased, or the Tsurumi sales office in your area.

Overhaul The pump must be overhauled even if the pump appears normal during operation.

Especially, the pump may need to be overhauled earlier if it is used continuously.

[NOTE] To overhaul the pump, contact the dealer where it was purchased, or the

Tsurumi sales office in your area.

1,000 hours or 6 months, whichever comes first.

Changing oil

Changing the mechanical seal

2,000 hours or 12 months, whichever comes first.

Power supply voltage variation

= within ±10% of the rated voltage

Measuring the power voltage

Inspection of liffting rope Replace if damage, corrosion, or wear has occurred to the rope.

Remove if foreign object is attaching to it.

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Hex Key W

rench

Oil Plug

Packing

Oil Inlet

Mechanical Seal

Lubricant ; Turbine Oil VG 32 (non-additive)

Packing, O-Ring

Part Replacement condition

V-Ring

Shaft sleeve

When oil in oil compartment becomes milky.

Every 12 mouths or after 2,000 hours of use, whichever comes first.

Each time pump is disassembled or inspected

When ring is worn, and each time pump is disassembled or inspected

When it becomes worn

LB-250, LBT-250, LB-250A

LB-480, LBT-480, LB-480A, LBZ-480

155

LB-800, LBT-800, LB-800A, LBZ-800

155

Pump Model Specified

Volume

Unit :

Specified Oil: Turbine Oil VG32 (non-additive)

m

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Contact the electric power company or an electrical

repair shop.

Connect the plug.

Check whether there is an open circuit in the

cabtyre cable or wiring.

Remove obstacles and check the operation of the

float.

Use sandpaper to remove the debris.

Repair or replace the level relay unit.

No proper power is supplied

(i.e. power outage).

Plug is not inserted.

Open circuit in cabtyre cable or poor

connection.

Malfunction in float.

Electrode is insulated by debris.

Malfunction in level relay unit.

Inspect the pump and remove the debris.

Remove obstacles and check the operation of the

stop float.

Provide the rated voltage or use an extension

cable that meets the specifications.

Check the nameplate and replace the pump or the

impeller.

Remove the debris from the strainer stand.

Repair or replace.

Place a concrete block under the pump to prevent

the pump from drawing in excess mud.

Foreign matter is wedged in the impeller,

causing the motor protector to trip.

The movement of the stop float is

obstructed, causing the start float alone to

perform the start and stop operations.

The voltage is too low.

A 50Hz unit is used at 60Hz.

The pump has been operated for a long

time with its strainer stand clogged.

Malfunction of motor (seizure or water

leakage).

The pump is drawing in too much mud.

Replace the bearings. Motor bearings are damaged.

Remove the blockage. Or, replace the part.

Set the water level of the (stop) float higher than the

pump's minimum possible operating water level.

Repair or replace the level relay unit.

Use sandpaper to remove the debris.

Check whether there are any wires that are tangled

around the electrode. Check whether there are any

electrical devices that could generate

electro-magnetic interference, and relocate the unit

as necessary.

The movement of the floats is obstructed.

The switch in a float is faulty.

The water level of the (stop) float is set

lower than the pump's minimum possible

operating water level.

Malfunction in level relay unit

Electrode is shorted by debris.

Influence by electrical device in the vicinity

of the pump.

Replace the impeller.

Minimize the bends of the hose, and if the pump is

used in a dusty area, place it inside a mesh basket

during operation.

Remove the debris from the strainer stand.Place a

concrete block under the pump to prevent the

pump from drawing in excess mud.

Change the power connection.

Check the nameplate and replace the pump or the

impeller.

The impeller is worn.

The hose is clogged or kinked at its

midspan.

The strainer stand is clogged or is buried.

The motor rotates in reverse.

A 60Hz pump is used at 50Hz.

Pump fails to start; or, starts

but stops immediately.

Pump generates vibration or noise.

The pump does not stop

automatically.

Problem Possible cause Countermeasure

Pump starts but stops

immediately, causing the

motor protector to trip.

The pumping volume is low.

Remarks

Purchase date

Manufacturing number

Product model

TSURUMI PUMP LB-480A Operating instructions

Brand: TSURUMI PUMP

Model: LB-480A

Type: Operating instructions

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TSURUMI PUMP LB-480A Operating instructions

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TSURUMI PUMP LB-480A Operating instructions

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