HE-11281

CONTENTS

,I. CAUTION NOTES FOR YOUR SAFEW

2. INTRODUCTION

3. RATING, SPECIFICATION AND PERFORMANCE

4. CONSTRUCTION

5. TRANSPORTATION AND CUSTODY

6, INSTALLATION AND WIRING

6-1. INSTALLATION

6-2. WIRING

7. OPERATION

7-1. TRIAL OPERATION

7.2. OPERATION

8. MAINTENANCE AND INSPECTION

8-1. MAINTENANCE AND INSPECTION

8.2. DISMANTLING

8-3. INSPECTION

84. REASSEMBLING

9. TROUBLESHOOTING

3

5

5

6

10

1 1

1 1

12

15

1 4

1 5

1 6

1 6

1 6

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1 9

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HE-11281

1. CAUTION NOTES FORYOUR SAFETY TEIKOKUCänned motor

FOR YOUF SAFETY (1)

Hetsrd! lra llst.d at lwo bvab

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DANGER E CAUTION

Algnqdn! lhiswarning can causapaßood Iniory and/ofdlrntgr lo th! pump

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DO r{Ol FUr{ oRYlll th. purnp ia a[ovrad lo run dry, tha bartülr, darvrt and olhar compomnt3 could ba drn&lad rfid 3rriolsovröaalino of ftr rnotor windino3 cän ocq,l.

OPEN VENT VALVE SLOWLYI

Yoi, m,st ürtcisa cst tion, avrn wian lllc pr,/nr9 i3

not opcnlirp, inlamel prc$urar can bs high El mytim.. For toxic liqui*, propar srLv mdhod! mult brobSarliad,

AVOIO RAPIO TEIIPEiATURE CHANG€SI

|lrlo dügaa io tafiprrtlurunun b. ryddad. Radd dran!|.l can caut. hdrs b

ocqr. in gühab. PubliEhld procadut6lor prcp|r

h.|üne üd @ling mutl b. tollor.d. ll FlbllüldgrocadurG rr! .ot rvrihblr qlrd wiül Tcik<rkubrto.r opanüng hc lquhrfiml.

HOT. OO NOT TOUCHI

Motc rrd Fnnp c|n ba hot o.n sidt ptfnp||l'C!|d hld., Ir(rf.rrttr d t|c!r üd Fn?\n y öpürdhg m h.l.m9.nnlr. oa rqüdtc ba trit, thay may bacoGi. 70 I or fiqa.( mdml.lm l€lt t )

3

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FOR YOUR SAFETY (2) TEIKOKU Csnn€d rn6r PurnpcHazardc a.. ri3r€d ar rwo bvdr WARNING A CAUION

IF MOTOR AIPS, DO NOT RESTART BEFOFE OETEFMINING THE CAUSEI

Rosta.ting th9 notor babra alclriahi.rg lha caulafiay r.3sll in axcotrivc hart c|ucne pifip of motorLilua!.

DO I{OT RE�TOVE INTERT{AL BOLTS II{ IEFITITIAL IOXI

lf il i3 n.€$.!ery lo rtmqva lha taamind bor for |ny

.at!on, fiill loolcn tlta boltt by 2 o. 3 lumt b cn.d(

il üy inrmrl p'rr$ra o,liquö ia pr6anl. You rnu3l

!ak! martur!! it fia po$iulily arbt] lhrt tha 9a! o.

lh!,rd it loxic or haardou! b partonnal or llrc

arlvLonnant.

DO NOT NEiTVE ANY 8OLT3 OI{ PUTP, IOTOF OR ONAN PLUGSI

HE-11281

IHE PUIIPIr.mdn in ürr pump üd nolor in lplt€ ot h.o{,gh

ol Dl[

Tlr. Intqnrl pr.3tur. cu b. lqthat ülrn ü1.$nei.'.. Alrry! loot.n ü. ddn dW tlo$y tordLv. r'ty Inlrmd p'r$u'c bah.t dtatipü.g lodlar$mbla ti. punp, Yoq mual bh adaqurl.pr.cüfions It thr llquid h tha FJmp codd b.hlzlrdooa to pcrlo,nnalo. t'la anvitodt anl

ALWAYS ASSUIIE THAT THERE IIi UOUID LEFT IN

Thl.t Ir dmy! h! po$lwty hlt ltaldül liquE coqldIffi drcomminrüon. Pry p| rhüht.ttantion lo fia cbrttnc€ betwa.n ür shlt and the impc[ir, b€edn$,

drwe!, b.8ln9 houslngE and gr*rE. You muat tür rdaquata pruc|uthnt lo prot3d p9ßonogl and üie

rnvlrcn|nonl il tho liquld could b. coa3idr.ad hüanJou!.

HE-11281

2. INTRODUCTION

3. RATING, SPECIFICATION S AND PERFORMANCE

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The pump is manufactured in accordance with your specified requirements. Refer to

"drawings for Approval" for details of rating and specifications.

Follow the instructions below when operating the pump.

(1) Do not run pump dry.

(2) Completely remove foreign matters from piping and system

(3) Do not keep the pump running with discharge valve closed for more than one (1)

minute.

(4) Do not run pump in reverse direction.

(S) In case abnormal noise or vibration noticed, inspect causes and take

countermeasures prom ptly.

(6) When a safety device is triggered, check the cause and take remedies to eliminate

the cause. Do not run the motor before the remedies are comoleted.

(7) Should freezing occur during operation is shut down, take a preventing measures.

(8) Should you decide to operate the pump under the conditions different from the

initial specifications, please consult us.

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HE-l1281

4. CONSTRUCTION OF THE PUMP UNIT

The degree of provided by the enclosure with respect of the inside of the Terminal

Box (24) and a motor is lP54 (EN60034-5).

The sectional drawing of the basic model with hollow pump shaft is shown in Fig.-1 .

Motor (squirrel-cage induction motor ) is assembled with pump in one body. Inside of

Stator Assembly (20) and outside of Rotor Assembly (19) are welded and hermetically

seafed with a thin plate of non-magnetic metal; Stator Can (22) for Stator Assembly

and Rotor Can (21) for Rotor assembly so that the liquid will not enter into stator and

rotor.

Some handled liquid flows in the following order;

4-1. lmpeller (02) outlet --- Filter (03) --- Holes of F.B. Housing (32) ---r Gap between

Stator Can (22) and Rotor Can (21) --* Gap between rear Bearing (158) and Shaft (16)

..- R.B. Housing ('t4) --- Center bore of Shafr (16) ---l low pressure side of Casing (01)

or lnducer (04).

4-2. Another part of the circulating flow runs through hole of F.B. Housing(32) "- Gap

between front side Bearing (15A) and Shaft Sleeve(16) --.' Orifice formed by F. B.

Housing (32) and hub of lmpeller (02) "- low pressure side of the lmpeller (02).

4-3. This circulating flow works as lubricant and coolant for Bearings

(15A) and (158), as well as coolant for motor' Therefore, slurry in the handled liquid

and /or shortage of circulation flow cause troubles. Rotor Assembly (19) rotating in the

liquid and the shaft (16) supported by two bearings: front (15A) and rear (15B)' are in

one body. lmpeller (02) and Inducer (04) are installed on the end of the same shaft.

HE-11281

There is no shaft seal which may cause leakage.

The thrust forces produced by lmpeller (02) and Inducer (04) are supported by the front

and rear Thrust Collars (1 8A) and (188).

The front and rear Bearings (15A), (158), shaft sleeve (17) and thrust collars (18) are

consumable items. The wearing conditions should vary depending on the operating

conditions. Therefore, these items should be checked for their wearing conditions

periodically according to the Section 8-3.

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HE-11281

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HE-11281

. TRANSPORTAION AND CUSTODAY

(1) Avoid rough handling at the time of transportation and unloading. Confirm

whether there is any damage which may have occurred in transit.

(2) At the time of transportation, the range of ambient temperature shall be kept at

-25 - 70"C and the altitude of the transDortation route shall be 3000 meters

or below.

(3) When the pump is in the custody for long time, record the measurement of

insulation resistance on arrival. lf the motor is ooerated under the condition of

poor insulation, the accident such as short circuit may occur.

(4) A storage place should be well ventilated to avoid humidity and precautions

shall be taken to avoid blowing in and leaks in of rain water through the roof, and

puddles, etc.

(5) Storage should be in an original packed condition.

(6) Check the specifications indicated on the name plate and test certificate

attached to the pump and compare with your requirement specifications.

10

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HE-11281

INSTALLATION AND WIRING

6-1. lnstallation

(1) The altitude of installation of the pump shall not exceed 1000 meters above

sea level.

(2) The ambient temperature of installation shall be within the limit of -15 -

+40'C.

(3) To sling a pump, wind a belt-sling on the motor frame properly.

At that time, make sure that the belt-sling is at the center of gravity of the

pump by just lifting off the ground or the bed, where the pump unit is placed.

(4) The lifting gear to be used must be strong enough to bear the weight of the

pump. As to the dimensions and weight of the pump is indicated in the

dimensional drawing of "Drawings for Confirmation".

(5) The sizes of the flanges and /or piping to be used shall be identical to the

indicated ones in the dimensional drawing.

(6) Completely remove any foreign matters from the piping and accessories'

(7) Make the length of piping of suction side as short as possible.

(8) Since the suction piping has a great influence on NPSHava, carefully study

the piping size, length and other attachments.

(9) To avoid cavitation, position the end of the suction pipe deep enough to be

immersed even when the liquid level is low.

1 1

HE-11281

(10) Provide a screen in the suction tank against dust.

(1 1) Make the radius of the pipe bends as large as possible, minimize the number

of bends, and avoid installing the bends close to the pump suction port.

(12) Eliminate any air-pocket from the piping.

(13) Welds of piping shall be examined by the liquid penetrant test to ensure no

leakage exists.

(14) Keep the pump free from undesirable forces such as weight of piping, thermal

stresses of pipeline, off-center between the pump and the piping, etc., which

should adversely affect the pump.

('15) Attach supports to the pump to fix

(16) Confirmation of rotating direction must be done prior to piping. Rotate the

impeller with a hand to make sure that the rotor assembly rotates smoothly.

6-2. Wiring

Connect the electric terminals per " Drawings for Confirmation'

(1) Use the electric cables which conform to EN60204-1 , table5,6. Since the

temperatures of stud bolt on terminal plate vary depending on the temperatures

of liquid to be used, for power supply cable, use a refractory cable withstanding

temperature of 100 'C or over.

(2) Use the conduits which conform to EN60204-1 .

(3) Following devices are recommended for protection of canned motor pump.

* Over cunent relay * Leak cunent check relay

We can supply special low current relay that is useful for protect pumps possible

to operate at no liquid conditions such as tank drain pump. Check wiring diagram

1 2

HE-11281

in . Drawing for Confirmation " for thermostat wiring.

The method of setting of overload relay is as follows;

Because the rated current at normal output in the canned motor is higher than

that in general motors, set at the rated cunent indicated on the name plate. lt is

effective as a protecting device for canned motors to set the overload relay at as

low current as possible. Generally, it is recommended to set the relay at the

following value.

Variation of voltage & load is small -- Operating current x 1 .1

Variation of voltage & load is big --- Operating cunent x 1.25

When operating current is far below of rated cunent, it is recommended to set

the relay based on operating current not rated cunent.

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To protect the motor from damage caused by an open-phase operation, use the

open-phase relay.

Allowable locking time of motor : 10 sec.

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HE-11281

TE IKOKU |.|OTOR PUI'IP

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CONNECTION DIAGRAM

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RST lrl?P O W E R T E R l , | I N A L

tJvlY IMPNTI?T l . | P T E R I { I N A L

l,|C lmnl| { A G N E I I C C ( ) N T A C I O R

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T H F R I . I A L R E L A Y -

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HE-11281

. OPERATION

7-1. Trial Ooeration

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Complete necessary preparation for operation and operate the pump according to the

following order:

'l) Make sure that the vacuum rate and NPSHavail of suction tank are normal.

2) Make sure that the valve of discharge side functions properly.

3) Turn on the switch of the pump.

4) Check the discharge pressure.

5) Make sure that the operating cunent is within a rated value.

6) Check if there are any abnormal noises (allowable value is 72d8, A, or less at 1

), vibrations or cavitations etc.

Do not touch the unit with bear hands during operation, because temperatures of motor

and pump may be higher than 70'C (temperatures vary depending on the handling

l iquid ).

lf any abnormal condition is noticed, shut off the pump and check the causes. As to the

procedures of remedy, refer to the section of Trouble Shooting.

7-2. Ooeration

meter

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After trial operation is completed, the pump can be operated at any time. With

1 5

HE-11281

reference to cautions during operation, the items mentioned in the introduction should

be observed with utmost care

MAINTENANCE AND INSPECTION

8-1 . Maintenance and Inspection

(1) Keep the vacuum rate of the equipment at the specified value.

(2) Keep any rust, sand and other foreign particles out of the liquid to handle.

(3) From time to time, check the pumped liquid and put anti-corrosive into the

liquid as required.

The mentioned above are essential to keep stable operation of the pumps for long

time. Maintenance and inspection shall be carried out according to the equipment

manufacturers regulations.

8-2. Dismantling

Dismantling can be made in the following manner. As for the parl numbers, refer to

the sectional view drawings; Fig-1, Fig-2.

(1) Remove Nuts (47) and pull the motor backward. At this time, pay full attention not

to hit Inducer (04) against Casing (01).

(2) Open the Lock washer (57A) on the shaft end and remove Bolt (46A) and Washer

(55A) then Inducer (04) and lmpeller (02) can be removed.

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(3) Remove Key (58A) and Adjusting Washer (56) from the Rotor (19).

1 6

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HE-11281

At this time, pay attention not to lose the small parts, especially

The Adjusting Washer (56) should be tied alt together and stored.

(4) Remove Bolts (468),(a6D) from F.B. Housing (32) and R.B.

Housing (14). At this time, pay full attention not to damage bearings (15A) and

(1sB).

(5) Pull out Rotor Assembly (19) Stator Assembly (20) slowly and horizontally with

care along the stator can. Be careful not to hit the shafi end against the stator can

to avoid cracking or damaging each other. The removed rotor assembly should

be placed on clean cloth and kept not rolling so that rotor Can (21) will be

protected from damage.

(6) Removed Sleeve (front and rear) (17), Thrust Collars (front and rear) (18), from

the removed rotor assembly. Please be aware that Bolt (48) on the rear end for

fastening the retaining Washer (55C) is of LEFT-HAND thread. [On the drawing

Fig-1, Retaining J-Ring (900) is used instead of a bolt.l

Now, as dismantling of the pump unit has been completed, please take care not

to damage or lose any part.

8-3. lnsoection

(1) Bearings (15A) and (158)

After operation of long period of time, bearings may have become hard to remove

due to various causes, do not attempt to remove but check the following points:

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1 )

2)

3)

HE-11281

Sliding surface (luster, scratches, etc.)

Amount of wear of inside bore ( refer to the Table 1)

Wear and scratch on the thrust face. Depth of radial grooves.

The allowable wear limits are indicated in the table 1.

lf any abnormal condition is not observed, the parts may be used again as

they are. lf anything wrong, unscrew the Set Screw (48) to replace the failed

part(s) with new one.

Fig-3

Table 1 BEARING (15) WEAR LIMIT (unit : mm )

Motor Frame Number Ö A - O B I

420 u.c 78.2

1 8

8-4. Reassembling

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HE-11281

(2) Shaft Sleeve (17) and Thrust Cottars (18)

Check the following points to decide the parts to be replaced or not.

1) Corrosion

2) Sliding ( luster, scratches )

3) Wear and tear

(3) Clogging up the circulation line and foreign matters adhering.

(4) Any contact marks, wear or conosion. (if the extent of the contact and/or partial

wear of the orifice is within a range that the pump performance would not be

affected, it may be disregarded. )

Glean and dry parts. Reassembly is carried out in the reverse order of dismanfling.

During assembly, some adjustmenls may be required.

Pay aftention to the following:

(1) On each of the Thrust Collars(18) the hardened surface is one side chamfered

smaller at the inside bore. Make sure that the hardened surface faces

Bearings(1 5A) and (1 58).

(2) Fit the Key(588) or Pin(60) in place shown in the Fig-1. Make sure that the Shaft

Sleeve(17) engages the key or pin properly.

(3) Install the rear Shaft Sleeve(17) and lock with the Lock Washe(s7), properly.

(4) Adjustment of an axial play of the lmpeller (See Fig-2)

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1 9

HE-11281

Under the condition of the lmpeller and the Rotor assembly pushed backward,

the gap "g" should be within the values shown in the Fig-2. Adjustment can be

made with Adjusting Washers (56). Please note that in case of the pump unit

type L-316c4-0610S, a Retaining ring C-type (900) is used instead of the tock

washer.

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(5) Tighten the lmpelle(o2) and the Inducer(04) firmly and lock on the hex. head

Bolt(46C) with the Washer(57) securely.

(6) Make sure that no defect or flaw exist on the Gaskets and their contact surfaces.

Install gaskets after cleaned.

@

FB housing @or Adapter E)

g-O.5to.1(mm)

20

HE-11281

TROUBLE SHOOTING

As to trouble shooting, refer to the Table-24 and 28.

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