Tsurumi Pump KRS Series User manual





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
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
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
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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:

WARNING
When transporting the product,
pay close attention to its center of
gravity and mass. Use an appro-
priate 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. Absolutely provide a
dedicated earth leakage circuit breaker
and a thermal overload relay suitable for
the product (available on the market).
Imperfect wiring or improper protective
equipment can lead to electrical leak-
age, fire, or explosion in the worst case.
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.

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


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.
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.
If a hose is used for the discharge
line, take a measure to prevent the
hose from shaking. If the hose
shakes, you may be wet or
injured.
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 electrical shock.
Use the handle when installing or
carrying the pump. Never use the
cable to carry or to suspend.
Doing so may damage the cable
which could cause electrical
leakage, short circuit, or fire.
Allow the pump to suck as few
foreign object as possible. If there
is a risk that the pump could be
buried under the sediment, place
it on a solid base like concrete
block. Failure to do so may
result in breakdown of the
pump and could cause electri-
cal leakage or short circuit.
Do not use the cabtyre cable if it is
damaged. Connect every conduc-
tor of the cabtyre cable securely to
the terminals. Failure to observe
this can lead to electrical shock,
short-circuit, or fire.
Attach a hose securely to the hose
coupling. Imperfect connection of
hose could cause water leakage
which may result in the damage
of nearby walls, floors, and other
equipment.

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.
Do not operate the product under any
voltage other than described on the
nameplate with the voltage tolerance limit
within ±5%. If it is operated with a genera-
tor, it is strongly suggested not to
operate other equipment with the
same generator. Failure to observe
this caution may cause malfunc-
tion and breakdown of the prod-
uct, 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.
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 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.
water only
rated
voltage




In case of power outage, turn off the power supply. The product will resume opera-
tion when the power is restored, which presents serious danger to people in the
vicinity.
WARNING
power
outage
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 prod-
uct. 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

CAUTION
Never use the product for potable water. It may present a danger to human
health. Potable
Water
CAUTION
When the product will not be used
for an extended period, be sure to
turn off the power supply (earth
leakage circuit breaker, etc.).
Deterioration of the insulation
may lead to electrical leakage,
electrical shock, or fire.
Do not use the product for hot or
warm liquid over 40℃, as doing so
will damage the product, which
may lead to electrical leakage or
electrical shock.
Do not allow foreign object (pin,
wire, etc.) to enter the suction inlet
of the pump. 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.
OFF


Cabtyre Cable
Hose Coupling
Mechanical Seal
Oil Lifter
Handle
Lubricant
Oil Plug
Oil Seal
Pump Casing
Strainer
Bottom Plate
Impeller
Suction Cover
Shaft Sleeve






Note:



Note:
Cabtyre Cable
Hose Coupling
Mechanical Seal
Oil Lifter
Lubricant
Oil Plug
Oil Seal
Pump Casing
Oil Casing
Strainer Stand
Impeller
Suction Cover













Note:


 



Note:

1
2
3
4
5
6
7
8
9
10
11Submersible pump
Built in motor protector
Serial number
Model
Frequency
Max. total head
Min. total head
Max. flow rate
Discharge bore
Phase
Rated voltage
12
13
14
15
16
17
18
19
20
Rated current
Rated output power
Insulation class
Max. liquid temperature
Weight without cable
Speed of rotation
IP degree of protection
Max. immersion depth
Direction of rotation



Model
KRS2-C3/A3 13.1 1.10 / 1.04
43 - / 275
14.8 / 15.0 1.82 / 1.76
- / 49 - / 465
8.0 3.25 / 3.15
26 - / 832
17.5 1.40 / 1.45
57 - / 383
14.0 1.67 / 1.70
46 - / 449
20.0 2 / 1.95
66 515
17.0 3.18 / 3.20
56 - / 845
10.0 / 10.8 4.90 / 5
- / 35 - / 1321
723 Direct-on-Line 2.2
KRS-43 953 Direct-on-Line 3.0
KRS-63 973 Direct-on-Line 3.0
KRS2-D3/B3 91/893 Direct-on-Line 3.7
KRS2-C4/A4 883 Direct-on-Line 3.7
KRS2-D4/B4 98/953 Direct-on-Line
Direct-on-Line
Direct-on-Line
5.5
KRS-65.5 1183 5.5
KRS-85.5 1263 5.5
KRS2-C6/A6 19.6 / 21.0 2.85 / 3.17
- / 69 - / 837
21.0 / 21.2 4.25 / 4.00
- / 70 - / 1057
15.0 5.30 / 5.50
49 - / 1453
22.0 / 23.0 3.70 / 3.60
- / 75 - / 951
17.5 / 18.0 5.50
- / 59 1453
21.5 / 23.0 6.40 / 6.30
- / 75 - / 1664
29.0 5.50 / 5.35
95 - / 1413
34.8 / 34.5 5.30
- / 113 1400
1303 Direct-on-Line 7.5
KRS2-69 1553 Direct-on-Line 9.0
KRS2-89 1753 Direct-on-Line 9.0
KRS2-D6/B6 158/1503 Direct-on-Line 11
KRS2-8S 1743 Direct-on-Line 11
KRS815 2403 Direct-on-Line
Direct-on-Line
Direct-on-Line
Direct-on-Line
Direct-on-Line
15
KRS819 3603 18.5
KRS822 3803 22
26.0 / 24.5 5.90 / 6.30
- / 80 - / 1664
12.2 12.00
40 3170
KRS822L 3803 22
KRS1022 3903
80
100
150
80
100
100
150
200
150
150
200
150
200
200
200
200
200
250
3
4
6
3
4
4
6
8
6
6
8
6
8
8
8
8
8
10 22
Bore
(mm)
(inch)
Starting Method Output
(kW)
Max Head
(m)
(feet)
W
eight
(kg)
Max Capacity
(m3/min)
(GPM)
Phase


Note:

 


CAUTION

+3*% 0./&026 "*-5"2&00.3-%5"2&0"-%$"006*-(5"2&078
3,/
,/&++&0 &,*/&- 6/&+.1& 6/&
)"'2&"+ .3#+&&$)"-*$"+&"+
&"0*-( )*&+%&%"++&"0*-(
/&$*'*$"2*.- 0626/&3#,&01*#+&-%3$2*.-.2.0.+&
-13+"2*.- +"11"-%
0.2&$2*.-612&, *0$+& )&0,"+0.2&$2.0
30#*-&.*+!-.-"%%*2*4&

3#0*$"-2
*1$)"0(&.--&$2*.- .1&.3/+*-(
.2.0









Note:









Note:
Hose Band
Hose
Discharge Connection
Hose Coupling

  


  



 


WARNING
CAUTION
 

 

 
  

  
  



CAUTION
Note:


 

CAUTION
Model Maximum allowable water pressure
Model with output 11 kW or less
Model with output above 15 kW
0.3 MPa (3 kgf/cm2) - discharge pressure used
0.4 MPa (4 kgf/cm2) - discharge pressure used


Pump stopped
Outflow
Backflow
 










Note:
 


 




  



  






CAUTION
Wire rope or chain
 




Note:



 


 



WARNING
CAUTION

  



  


  

 





CAUTION

 

 


WARNING
CAUTION

  


  
  




WARNING

VU W G
G-Green
(Green/Yellow)
U-Red(Brown)
V-White
(Grey) W-Black(Black)
Direct on line
Ground



Circle Thermal Protector
Coil
U V W G
Red
(Brown)
White
(Grey)
Black
(Black)
Green
(Green/Yellow)
Direct on line
Ground

 
 



 
 



CAUTION
Note:
Note:





 
Note:


Example :
Interchanging
phases V and W
UVWG
Ground

 


WARNING

  

  

 

 


WARNING
CAUTION
 
 

COUNTERMEASURE

 



COUNTERMEASURE
 

 



 
CAUTION
COUNTERMEASURE

 
 




 


CAUTION

 


  


  



 












WARNING
CAUTION
Note:



  

  

  


  






WARNING
Note:
C.W.L.
Applicable
Model
Applicable
Model
C.W.L.
(mm)
C.W.L.
(mm)
145
170
300
155
155
155
190
295
175
200
300
175
300
275
345
345
345
450
KRS2-C3/A3
KRS-43
KRS-63
KRS2-D3/B3
KRS2-C4/A4
KRS2-D4/B4
KRS-65.5
KRS-85.5
KRS2-C6/A6
KRS2-69
KRS2-89
KRS2-B6
180
KRS2-D6
KRS2-8S
KRS815
KRS819
KRS822
KRS822L
KRS1022






 



 
 

 
 




WARNING
Note:



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 details of oil inspection and oil change.
Note: Refer to details of oil inspection and oil change.
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 6,000 hours of use, whichever comes first.
Inspecting oil Check the oil every 6 months or after 3,000 hours of use, whichever comes first.
Power supply voltage tolerance (within ±5% of the rated voltage)
Measure power supply voltage
Insulation resistance reference value = 1MΩmin.
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.
Semi-yearly
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.
To be below the rated current
Measure operating current
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.





Note:






Part Replacement frequency
Mechanical Seal
Lubricant ; Turbine Oil VG32 (non-additive)
When oil in oil compartment becomes milky.
Every 6,000 hours or 12 month, whichever comes first.
Packing, O-Ring
Oil Seal
Each time pump is disassembled or inspected.
When ring is worn, and each time pump is disassembled or inspected
Shaft sleeve When it becomes worn
 




WARNING

 



Note:

 


Oil Inlet
Packing
Oil Plug
Hex. Wrench
Applicable
Model
Specified
Volume
Specified Oil : Turbine Oil VG32 (non-additive)
Applicable
Model
Specified
Volume
1200
1440
1440
1850
1850
1850
1960
1960
2300
2300
2300
2300
3200
6500
6500
6500
4000
KRS2-C3/A3
KRS-43
KRS-63
KRS2-D3/B3
KRS2-C4/A4
KRS2-D4/B4
KRS-65.5
KRS-85.5
KRS2-C6/A6
KRS2-69
KRS2-89
2300
KRS2-D6/B6
KRS2-8S
KRS815
KRS819
KRS822
KRS822L
KRS1022
Unit :





 
 
 
 

 
 

 

Note:
WARNING

  




  



  





WARNING
















Note:


Note:
Packing
Plain Washer
Suction Cover
Hex. Bolt
Strainer
Plain Washer
Stud Bolt
Bottom Plate
Hex. Nut
Oil Seal
Shaft Sleeve
Impeller Adjusting Washer
Impeller
Impeller Thead Protect Cover
Spring Washer
Impeller Nut
Oil Plug
Packing











Note:


Note:
O-Ring
Oil Plug
Oil Seal
Impeller
Plain Washer
Impeller Nut
Hex. Bolt
Ｏ-Ring
Oil Plug
Packing
Suction Cover
Spring Washer
Hex. Bolt
Stud Bolt
Strainer Stand
Spring Washer
Hex. Nut



 
 
 
 

 
 

Note:


 



WARNING





Remarks
Purchase date
Manufacturing number
Product model
(1)Power is off.
(2)Cabtyre cable is cut or not
connected properly.
(3)Impeller is clogged.
(1)Turn power on
(2)Repair/replace the cable or fix the
connection.
(3)Inspect the pump and remove any
debris.
(1)Impeller is clogged.
(2)Low voltage.
(3)Wrong power frequency.
(4)Extended operation with a clogged
strainer.
(5)Faulty motor (burning, water
infiltration, etc.).
(6)Motor protection system was
triggered.
(1)Remove debirs.
(2)Provide the rated voltage, or make sure
the cabtyre cable extension is the proper
standard.
(3)Check the name plate, and replace the
pump.
(4)Remove debris from the strainer.
(5)Repair or replace the motor.
(6)If the pump is to be used for heavy liquid
or other high loads, upgrade impeller.
(1)Worn out impeller.
(2)Sharply bent or clogged hose.
(3)Strainer stand clogged or buried.
(4)Motor direction is reversed.
(5)Wrong power frequency.
(1)Repair or replace the worn parts.
(2)Straighten out any sharp bends.Enclose
the pump with a screen to keep away
debris.
(3)Remove debirs from the strainer stand,
or place a block under the pump.
(4)Interchange power supply leads as per
p.11.
(5)Check the name plate, and replace the
pump.
Pump will not start
Pump stops soon
after starting
(Motor protector
operates)
Pool life or dischage
capacity
(1)Damaged motor shaft. (1)Contact dealer and replace motor.
Heavy vibration or noise
Problem Possible causes Countermeasure