19591394 teco westinghouse horizontal induction motor manual

7/23/2019 19591394 Teco Westinghouse Horizontal Induction Motor Manual

1/16

WORLD SERIES

HORIZONTAL INDUCTION MOTOR

INSTRUCTION BOOK


2/16

INDEX

1. GENERAL................................................................................................................................................................. 3

2. RECEIVING.............................................................................................................................................................. 3

3. HANDLING.............................................................................................................................................................. 3

4. STORAGE................................................................................................................................................................. 3

5. LOCATION............................................................................................................................................................... 4

6. INSTALLATION....................................................................................................................................................... 4

6.1 Unpacking......................................................................................................................................................... 4

6.2 Mounting........................................................................................................................................................... 4

6.3 Coupling............................................................................................................................................................ 4

6.3.1 Direct Connected................................................................................................................................... 5

6.3.2 Belt, Chain or Gear Connection............................................................................................................. 6

6.4 Electrical Connections...................................................................................................................................... 6

6.4.1 Power...................................................................................................................................................... 7

6.4.2 Auxiliary Devices.................................................................................................................................. 7

6.4.3 Field Termination of Cables.................................................................................................................. 7

6.5 Insulation Resistance........................................................................................................................................ 7

7. OPERATION............................................................................................................................................................. 8

7.1 Prior to Initial Start-Up..................................................................................................................................... 8

7.2 Initial Uncoupled Start-Up............................................................................................................................... 8

7.3 Initial Coupled Start-Up................................................................................................................................... 9

8. MAINTENANCE...................................................................................................................................................... 10

8.1 Cleanliness........................................................................................................................................................ 10

8.2 Sleeve Bearings................................................................................................................................................. 11

8.2.1 Oil Changing.......................................................................................................................................... 11

8.2.2 Disassembly........................................................................................................................................... 11

8.2.3 Reassembly............................................................................................................................................ 12

8.3 Anti-Friction Bearings...................................................................................................................................... 13

8.3.1 Re-Greasing........................................................................................................................................... 13

8.3.2 Disassembly........................................................................................................................................... 13

8.3.3 Reassembly............................................................................................................................................ 14

8.4 Noise and Vibration.......................................................................................................................................... 14


3/16

9. RENEWAL PARTS................................................................................................................................................... 14

10. TABLES ................................................................................................................................................................ 14

Table 1 ................................................................................................................................................................ 14

I.B. 4500-5

3


4/16

1. GENERAL

World Series motors are a modern line of squirrel-cage induction motors whose design, both electrical andmechanical, has been computer-optimized to providelong,reliable and highly efficient service. The vacuum-

pressure impregnated Thermalastic po!y statorwinding insulation utilizes the most modern insulationconcepts and materials to assure a long, trouble-freewinding life.

These instructions address the more commonsituations encountered in motor installation, operationand maintenance. "owever, they are not purported tocover every conceivable situation that might arise.Therefore, if additional information is required, it can beobtained by contacting either the nearest Westinghouse#otor $om-pany Sales office or the Westinghouse #otor$ompany headquarters at %-&''-()*-+&.

or the Westinghouse #otor $ompany warranty tobe and to remain in effect, the motor must be installedand operated in strict accordance with the outlinedrawing, motor nameplates and these instructions and

the motor must not be altered or modified in anyunauthorized manner.

2. RECEIVING

The motor should be carefully inspected for damagewhen received. /f there is any evidence of damage, thecarrier should be notified immediately. The nearestWestinghouse #otor $ompany sales office should also benotified.

3. HANDLING

ach motor is provided with lifting lugs, welded to

the four corners of the motor frame, for lifting theassembled machine. The motor should always be lifted

by using the lifting lugs located on all four corners of themotor frame.

CAUTION

Spreader bars of adequae !apa!"# a$d$u%ber %us be used o a&o"d app'#"$( a$#pressure a(a"$s )e op a"r )ous"$( *") )e'"f"$( s'"$(s.

/f the motor is lifted with the top air housingremoved, the angle of the lifting slings with thehorizontal should never be less than ) degrees.

With the e!clusion of the TW0$ cooler, the top airhousing is provided with 1-%' tapped holes for liftingdevices to be installed in order to remove the air housingfrom the motor. The top air housing can be detached byremoving the enclosure hold-down bolts, located in theinside corners of the enclosure. These enclosure hold-down bolts are accessed through the louver2screens

located on the front and rear end of the machine orthrough access panels bolted to the sides of the enclosure.

CAUTION

U$e&e$ '"f"$( %us a'*a#s be a&o"ded. S'"$(sof equa' 'e$()s %us a'*a#s be used o a&o"du$e&e$ '"f"$(+ *)e$ s"$('e po"$ '"f"$( "s obe used.

CAUTION

U$der $o !"r!u%sa$!es s)ou'd )e %oore&er be '"fed us"$( )e s)af as a$ aa!)%e$

po"$.

NOTE, 3efer to weights specified on outline drawing todetermine proper lifting equipment required forspecific components or assemblies.

-. STORAGE

STANDARD AC/AGING

/f the motor is not to be installed and placed intoservice immediately, certain normal precautions must beta4en after it has been received to provide proper protec-

tion while the motor is being stored. The motor shouldbestored under cover in a clean, dry location and should be

protected from rapid temperature changes.

Since moisture can be very detrimental to electricalcomponents, the motor temperature should be maintainedabout 56$ 7-+68 above the dew point temperature by

providing either e!ternal or internal heat. /f the motor isequipped with space heaters, they should be energized atthe voltage shown by the space heater nameplate attachedto the motor. /ncandescent light bulbs can be placedwithin the motor to provide heat. "owever, if used, theymust not be allowed to come in contact with any parts of

the motor because of the concentrated hot spot that couldresult.

This motor has been provided with a shaft shippingbrace or shipping bolt 7normally painted yellow8 toprevent shaft movement during transit, it must beremovedto allow shaft rotation 7refer to Section +8. /t is veryimportant that this brace be reinstalled e!actly as it wasoriginally, before the motor is moved from storage or any

I.B. 4500-5

4


5/16

time when the motor is being transported. This preventsa!ial rotor movement that might damage the bearings.

#otors equipped with sleeve bearings are shippedfrom the factory with the bearing oil reservoirs drained./n storage, the oil reservoirs should be properly filled tothe center of the oil level gauge with a good grade of rustinhibiting oil 7refer to the outline drawing for oilviscosity and any special requirements8. To 4eep the

bearing 9ournals well oiled and to prevent rusting, themotor shaft should be rotated several revolutions every

two 7(8 wee4s. While the shaft is rotated, it should bepushed to both e!tremes of the endplay to allow for oilflow over the entire length of the 9ournals.

#otors with anti-friction bearings should receive aninitial charge of grease upon receipt and then regreasedin intervals as specified on the lubrication and nameplate

provided on the motor. The grease used must becompatible with the factory grease and be of the gradespecified on the outline drawing. 3efer to Section %' forthe proper quantity of grease. The shaft should berotated several revolutions every two 7(8 wee4s tomaintain proper distribution of the grease within the

bearings.

Tilt-pad bearings are a type of sleeve bearing used inspecial design applications. :ue to the nature of this

bearing, a loose oil ring for delivering lubricant cannotbe provided. or short periods of storage 7less than +months8 rotating the shaft every ( wee4s will adequately

protect the bearing surfaces. or longer than + months,contact the Westinghouse #otor $ompany for assistancein relubricating.

LONG TER0 STORAGE AC/AGING

/f the motor has been pac4aged at the factory 7only ifso specified in the order8 for long-term storage, the

pac4aging should not be disturbed until the motor is to beinstalled.

;nce the pac4aging has been removed the motorshould be carefully inspected for damage. /f any damageis located, the nearest Westinghouse #otor $ompanysales office should be notified.

. LOCATION

This motor was designed for operation at theambient temperature and altitude specified on the outlinedrawing. The conditions at the installation site must note!ceed these limits for satisfactory motor operation and

life.

The motor location must be well-ventilated, allowingfree circulation of air around the motor. /f the motor hasan open ventilation system, the air discharge must not beso obstructed as to cause recirculation of the hotdischarge air bac4 into the air inlets.

. INSTALLATION

.1 U$pa!"$(

CAUTION

T)e %oor )as bee$ pro&"ded *") a s)"pp"$(bra!e or s)"pp"$( bo' 4$or%a''# pa"$ed#e''o*5 o pre&e$ s)af %o&e%e$ dur"$(ra$s". I %us be re%o&ed pr"or oopera"o$.

The motor should be inspected for any temporary,yellow caution tags whose legends convey informationconcerning actions necessary before the motor can besafely operated. 0ny slushing compound on the shaft orother parts must be removed using a petroleum typesolvent and observing proper safety precautions.

NOTE, /f the motor utilized a shipping bolt for restrain-ing the rotor, the Westinghouse logo must beinstalled over the hole in the endcover. Thelogo, the gas4et, and hardware can be foundwith the parts that have been shipped loose.7


6/16

suitable for belt, chain or gear connection unless it wasspecifically designed for such service.

0lthough the sleeve bearings are equipped withthrust faces, these are intended only to providemomentary a!ial restraint of the rotor movement eitherduring start-up or when operating the motordisconnected from the driven equipment. They must not

be operated under a constant thrust load unless theywere originally designed for this condition.

.3.1 D"re! Co$$e!ed

#otors with either sleeve or anti-friction bearingsare suitable for connection to the driven load through afle!ible coupling. $oupling solidly to the load is notacceptable. With sleeve bearings, the fle!ible couplingshould be of the limited end-float type. This will preventthe possibility of any end thrust from the load beingtransmitted to the motor bearings, which could cause

bearing damage. The recommended limits of end-floatfor couplings are treated in >#0 #= %-('.&% asfollows?

0oorE$d 6'oa

Coup'"$(E$d 6'oa

L"%"s

'.( /nch'.' /nch

'.' /nch'.% /nch

ield application of a coupling to the motor shaftshould follow the procedures recommended by thecoupling manufacturer. The shaft 4ey can be stepped anda radius provided to eliminate potential balance problems

but, under no circumstances may the motor shaft bemodified without the approval of the Westinghouse#otor $ompany. The motor shaft e!tension must not besub-9ected to either e!treme heat or cold during coupling

installation. /f it is necessary to e!ert force on the shaft,either continuously or intermittently, during couplingapplication, it must be properly restrained a!ially in thecenter of its end-float to prevent bearing damage.

/n aligning the motor 7and rotor8 a!ially with thedriven equipment, consideration must be given to thefollowing factors?

.3.1.1 T)e %a($e"! !e$er of )e roor a$d )e e$df'oa o$ e")er s"de 4"$ a$d ou5 for %oors*") s'ee&e bear"$(s.

The magnetic center will be indicated by apermanently installed pointer which is factory aligned toscribe mar4s on the shaft or to the shaft shoulderimmediately outboard of the drive-end bearing. 7>ote?$arefully inspect the condition of the pointer to ensurethat it has not been damaged or moved in shipment.8 /naddition, a nameplate is provided on the motordesignating the float-in and out to assist in locatingmagnetic center.

#otors with anti-friction bearing will not have theirmagnetic center mar4ed as their actual end float is verysmall.

.3.1.2 A7"a' s)af e7pa$s"o$ a$d "$!rease "$ s)af!e$er'"$e )e"() due o )er%a' effe!s.

/n general, the a!ial shaft growth for motors can bedisregarded since neither bearing is fi!ed and any shaftgrowth due to temperature increase will produce anelongation away from the coupling.

Shaft height growth 7change in shaft centerlineeleva-tion8 for T$ machines can be calculated as

follows?

@ 7'.'''A8 ! 7motor foot to shaft dimension8 for

non-T$ machines, divide this number by (.

.3.1.3 T)e e$d f'oa '"%"s of )e dr"&e$ equ"p%e$a$d )e !oup'"$(.

/t is desirable, in normal operation, that the motoroperate on its magnetic center, in which case no a!ialforce is being e!erted on the coupling.

The motor shaft and the driven shaft should be

aligned within the following tolerances in both angularand parallel alignment?

Below (''' rpm 7nameplate8 '.''( inch T/3(''' rpm and above '.''% inch T/3

T/3 @ Total indicator reading 7by dial indicator8

NOTE, #easurements should be made only after propershimming and with hold-down bolts properlytightened.

0ngular misalignment is the amount by which thecenterlines of the driving and driven shafts are s4ewed.

/t can be measured using a dial indicator set up as shownon page +. The couplings are rotated together through5+' degrees so that the indicator does not measure runoutof the coupling hub face. The shafts should be forcedagainst either the in or out e!treme of their end floatwhile being rotated.

I.B. 4500-5

6


7/16

Carallel misalignment is the amount by which thecenterlines of the driving and driven shafts are out of

parallel. /t can be measured using a dial indicator set upas shown below. 0gain, the couplings are rotatedtogether through 5+' degrees so that the indicator doesnot measure runout of the coupling hub outside diameter.

:uring alignment, the motor is ad9usted vertically byshimming between the mounting surface and the motorfeet. The shims 7furnished only if part of the motororder8 should be as large as the pro9ected area of themotor foot pad and should either partially or completelyencircle the hold-down bolts. Shimming must be donecarefully to prevent any uneven support of the frame feetthat could result in frame distortion due to hold-down

bolt tension. When properly shimmed, it should not bepossible to insert a '.''( inch thic4 feeler gauge betweenthe top shim and the bottom of any frame foot.

The hold-down bolt quantity, size and installationconfiguration must be in accordance with that shown bythe outline drawing. /f 9ac4 screws are used in the framefeet during alignment, they must be completelydisengaged so that no motor weight is carried by themwhen the hold-down bolts have been tightened.

0fter the motor has been properly aligned with thedriven equipment and the hold-down bolts have beeninstalled and tightened, at least two dowel pins should beinstalled in two diagonally opposite motor feet. TheWestinghouse #otor $ompany shall not be responsiblefor changes in alignment and subsequent damages to

motors that are not field doweled. Cilot holes areprovided in each frame foot to facilitate final fielddrilling and reaming of the required dowel holes. Sincethe dowel pilot hole in the frame foot is set at a )6 anglefrom the vertical, it may first be necessary to spotface themotor mounting surface. This can be accomplished witha flat bottom drill utilizing the pilot hole as a guide.

.3.2 8e'+ C)a"$ or Gear Co$$e!"o$

#otors are not suitable for belt, chain or gearconnec-tion to their driven load unless specificallydesigned for such service, because of the side loade!erted upon the shaft and bearings. /f there is anyquestion concerning either suitability or the minimum

belt sheave, gear or sproc4et diameter to use, the nearestWestinghouse #otor $ompany sales office should becontacted.

/n general, to minimize shaft bending stress andbearing side load, the sheave, gear or sproc4et should be

mounted as close to the bearing housing as is possiblewithout any mechanical interference.

.3.2.1 8e' Dr"&e

0 motor for a belt drive application should bemounted on a slide rail base. The initial positioning ofthe base should allow for ma!imum read9ustment of themotor away from the driven load to compensate for beltwear and stretch. The centerlines of the motor and of thedriven equipment shafts must be parallel so that thetension on all belts is uniform. 0lso, the sheaves must bealigned so that the belts run true in the grooves.

The belts should be tightened according to the beltmanufacturerDs instructions. !cessive belt tension 7suchas to overcome belt slippage or noise during start-up8 canover-stress the shaft and2or overload the bearings. Beltspeeds are normally limited to +'' feet per minute forA&EA sections belts and cast iron sheaves. Speeds ine!cess of this may require steel sheaves and should not beused without first consulting the belt manufacturer.

.3.2.2 C)a"$ Dr"&e

The chain sproc4ets must be accurately aligned 7in

the same plane8 to prevent e!cessive side pressure andwear on the drive components. The sag alignment of thechain, when carrying rated load, should be as specified

by the chain manufacturer.

.3.2.3 Gear Dr"&e

The deflections of the motor bearings and shaft are afunction of the motor load and must be considered whenaligning the driving and driven gears. The gears mustmesh accurately to prevent e!cessive gear wear, shaftload, vibration and noise. The final doweling of themotor feet should not be done until after the alignment

has been verified by a test run.

.- E'e!r"!a' Co$$e!"o$s

0ll interconnecting wiring for controls andgrounding should be in strict accordance with both the

>ational lectrical $ode and any local requirements.

.-.1 o*er

I.B. 4500-5

7


8/16

The rated conditions of operation for the motor areas shown by the nameplate. Within the limits, given

below, of voltage and frequency variation from thenameplate values, the motor will continue to operate butwith performance characteristics that may differ fromthose at the rated conditions?

F2- %'G of rated voltageF2- G of rated frequencyF2- %'G combined voltage and frequency

variation so long as frequency variation

is no more than F2- G of rated

;perating the motor at voltages and frequenciesoutside of the above limits can result in bothunsatisfactory motor performance and damage to orfailure of the motor.

The main lead bo! furnished with the motor hasbeen sized to provide adequate space for the ma4e-up ofthe connections between the motor lead cables and theincoming power cables. The bolted 9oints between themotor lead and the power cables must be made andinsulated in a wor4man-li4e manner following the besttrade practices.

abricated motors are provided with two 7(8 stainlesssteel grounding pads drilled and tapped with the >#0(-hole pattern 7two H-%5 tapped holes on %1 inchcenters8. an cooled cast frames are provided with aspecial grounding bolt. The motor should be grounded

by a proper connection to the electrical system ground.

The rotation direction of the motor will be as shownby either a nameplate on the motor or the outlinedrawing. The required phase rotation of the incoming

power for this motor rotation may also be stated. /feither is un4nown, the correct sequence can bedetermined in the following manner? While the motor is

uncoupled from the load, start the motor and observe thedirection of rotation. 0llow the motor to achieve fullspeed before disconnecting it from the power source.3efer to Section * of these instructions for informationconcerning initial start-up. /f resulting rotation isincorrect, it can be reversed by interchanging any two 7(8incoming cables.

.-.2 Au7"'"ar# De&"!es

0u!iliary devices such as resistance temperaturedetectors, thermocouples, thermoguards, etc. will gener-ally terminate on terminal bloc4s located in the au!iliaryterminal bo! on the motor. ;ther devices may terminate

on their own enclosures elsewhere on the motor. Suchinformation can be obtained by referring to the outlinedrawing. /nformation regarding terminal designationand the connection of au!iliary devices can be obtainedfrom au!iliary drawings referenced by the outlinedrawing.

/f the motor is provided with internal space heaters,the incoming voltage supplied to them must be e!actly asshown by either a nameplate on the motor or the outlinedrawing for proper heater operation. $aution must be

e!ercised anytime contact is made with the incomingspace heater circuit as space heater voltage is oftenautomatically applied when the motor is shut-down.

.-.3 6"e'd Ter%"$a"o$ of Cab'es

/f cables must be terminated in the field, follow theseinstructions?

I $ut cable to proper length.I 3emove insulation. :o not nic4 copper strands.

/nspect copper strands for damage before crimpingterminal.I 3emove e!cessive EC/ resin from the crimp area.

The supplied terminals may be used to fle! thestrands to brea4 loose any resin present.

I 0dd electrical 9oint compound 7i.e. Cenetro!8 to thecopper strands before crimping.

I $rimp supplied terminals and wipe off e!cess 9ointcompound after crimp is made.

I /nsulate connections.

NOTE, ollow manufacturerDs instructions for selectingterminals and 9oint compound, and crimpingterminals for e!tra fle!ible cables.

. I$su'a"o$ Res"sa$!e

Before operating voltage is applied to the motor,whether it be for chec4ing rotation direction or for actualoperation, the resistance of the stator winding insulationshould be measured.

The test voltage, based on the motor operatingvoltage, is as follows?

Opera"$( Vo'a(e DC Tes Vo'a(e

' - ''

'% - *'''*''% - %)''

''

%'''(''

This is particularly important if the motor may havebeen e!posed to e!cessive dampness either during transitor while in storage. 0 AmeggerA type instrument can beused to measure the insulation resistance. The testvoltage should be applied between the entire winding 7allwinding leads connected together8 and ground forappro!imately one minute with the winding at ambienttemperature. The recommended minimum insulationresistance is deter-mined as follows?

3# @ JE F %

Where

3# @ 3ecommended minimum insulationresistance in megohms at )'6$ 7%')68of the entire winding.

JE @ 3ated motor terminal to terminal voltagein 4ilovolts 7%''' @ % JE8.

I.B. 4500-5

8


9/16

;n a new winding, where the contaminant causinglow insulation resistance is generally moisture, dryingthe winding through the proper application of heat willnormally increase the insulation resistance to anacceptable level. The following are several acceptedmethods for applying heat to a winding?

0. /f the motor is equipped with space heaters, they canbe energized to heat the winding.

B. :irect current 7as from a welder8 can be passed

through the winding. The total current should note!ceed appro!imately 'G of rated full load current./f the motor has only three leads, two must beconnected together to form one circuit through thewinding. /n this case, one phase will carry the fullapplied current and each of the others, one-half each./f the motor has si! leads 75 mains and 5 neutrals8,the three phases should be connected into one seriescircuit.

$. "eated air can be either blown directly into themotor or into a temporary enclosure surrounding themotor. The source of heated air should preferably beelectrical as opposed to fueled 7such as 4erosene8

where a malfunction of the fuel burner could resultin carbon entering the motor. $aution must bee!ercised, when heating the motor with any sourceof heat other than self contained space heaters, toraise the winding temperature at a gradual rate toallow any entrapped moisture to vaporize and escapewithout rupturing the insulation. The entire heatingcycle should e!tend over %-(' hours.

/nsulation resistance measurements can be madewhile the winding is being heated. "owever, they must

be corrected to )'6$ for evaluation since the actualinsulation resistance will decrease with increasingtemperature. 0s an appro!imation for a new winding,

the insulation resistance will appro!imately halve foreach %'6$ 7%&68 increase in insulation temperatureabove the dew point temperature.

9. OERATION

9.1 r"or o I$""a' Sar:Up

To prevent damage to the motor, the following stepsmust be ta4en prior to initial start-up?

0. 3emove the shaft shipping brace 7if supplied8.

B. or sleeve bearing motors, the oil reservoir must befilled with oil to the correct level. ;n self-lubricated

bearings, the stand-still oil level will be at the centerof the oil gauge. The proper oil is a rust ando!idation inhibited, turbine grade oil. 3efer to theoutline for the recommended viscosity.#otors which are supplied with provision for floodlubrication have an inlet orifice to meter the oil flowto the bearing. 3efer to the outline drawing for thesevalues. /f the supply pressure does not match that

stated on the outline, the orifice size must bead9usted to produce the specified flow rate. Thedrain adapter 7also provided8 has a weir plate fi!edto the inside of the pipe to permit the establishmentof the proper oil level. This weir plate must belocated at the bottom of the pipe and must be parallelto the plane of the motor feet. To ensure optimumflow, the drain line should be vented to theatmosphere.#otors that have been designed with anti-friction

bearings for use with an oil mist lubrication system

have been pac4ed at the factory with a small amountof grease for short test runs. $ontinuous runningshould not be considered unless the oil mist systemis installed and operating.#otors equipped with standard anti-friction bearingsshould receive an initial charge of grease inaccordance with the instructions provided in Section%'.

$. /f possible, the shaft should be turned over by handto ensure that there is free rotation. ;n sleeve

bearing motors, the shaft should be moved to bothe!tremes of its end play while it is being rotated ,and the oil rings should be viewed through the

viewing ports in the top of the bearing housing toverify free ring rotation.7>ote? Tilt-pad sleeve bearings do not have an oilring and are supplied without this viewing

provision.8..

:. ;n T00$ and T$ motors, the area around thee!ternal fan inlet should be chec4ed for loose debristhat could be drawn into the fan during operation.

. 0ll e!ternal, factory-made, bolted 9oints should bechec4ed for any looseness that may have occurred intransit. 3efer to igure % for recommended bolttorques

6"(ure 1

9.2 I$""a' U$!oup'ed Sar:Up

/t is assumed and highly recommended that theinitial start-up of the motor will be made with the motorun-coupled. Eerify that oil has been added to each

I.B. 4500-5

9


10/16

bearing housing to the correct level. /f tilt-pad bearingsare used, verify that the lubrication system is operating

properly.

0. /f the motor is equipped with unidirectional fans7refer to the outline drawing8 and it is necessary toverify the rotation direction, the following procedureshould be followed?

%. Start the motor and observe the rotationdirection.

(. 0llow the motor to achieve full speed beforedisconnecting it from the power source.5. /f the rotation direction must be changed, refer

to the electrical connection section of theseinstructions. ;therwise, the motor can berestarted immediately after it has coasted to astop.

The operating direction of rotation of the motor mustnot be arbitrarily reversed from that shown by therotation nameplate without first verifying that themotor is bi-directional. Such information cangenerally be obtained from the outline drawing or bycontacting the Westinghouse #otor $ompany. /f themotor is not bi-directional, operating it in the wrong

direction can lead to motor overheating and failure.

B. ollowing the initial start-up, the bearingtemperatures should be closely monitored. ;n sleeve

bearings, the free rotation of the oil rings should beverified by observing them through the viewing portin the top of the housing. The rate of rise in bearingtemperature is more indicative of impending troublethan is the actual temperature. /f the rate of rise intemperature is e!cessive or if the motor e!hibitse!cessive vibration or noise, it should be shut downimmediately and a thorough investigation made as tothe cause before it is operated again.

/f the bearing temperature rise and motor operationappear to be normal, operation should continue untilthe bearing temperatures stabilize. 3ecommendedlimits on bearing temperature rises over ambient areas follows?

Temperature3ise ;ver

S'ee&e 8ear"$(s 0mbientI By permanently

installed detector )'6$I By temporary detector

on top of the bearingsleeve near the oil ring 56$

A$":6r"!"o$ 8ear"$(s

7;pen nclosure #otors8I By permanently

installed detector )'6$I By temporary detector

measuring the outside ofthe bearing housing ('6$

Total #easured

A$":6r"!"o$ 8ear"$(s Temperature7Totally nclosed #otors8I By permanently

installed detector 6$I By temporary detector

measuring the outside ofthe bearing housing '6$

/t must be noted that when operating flood lubricated

sleeve bearings without outside lubrication supplied, thebearing temperature must not be allowed to e!ceed &6$7%&68 total temperature.

CAUTION

U$der $or%a' !o$d""o$s+ for )e se'f:'ubebear"$(+ )e rae of e%peraure r"se s)ou'd befro% 2;< o 2


11/16

$. nsure that all personnel are at a safe distance fromrotating parts. Start the motor in accordance withinstructions supplied with the motor control.

:. /f the motor rotor fails to start turning in a second ortwo, shut off the power supply immediately. Thiscan result from?a. Too low a voltage at the motor terminals.

b. The load is too much for the rotor to accelerate.c. The load is frozen up mechanically.d. 0ll electrical connections are not made.

e. Single phase power has been applied.f. 0ny combination of the above./nvestigate thoroughly and ta4e corrective action

before attempting a restart.

. The initial start-up coupled to the driven equipmentshould be conducted essentially as outlined inSection *.( for the uncoupled case.

. $arefully observe the vibration of the bearinghousing and any abnormal noise generator.

>ote that motor vibration may not be identical to theuncoupled values. /f coupled vibration is e!cessive,rechec4 the mounting and alignment.

=. $arefully observe the bearing temperature rise andthe movement of the oil ring./f the bearing temperature rise and motor operationappear normal, operation should continue until the

bearing temperatures stabilize.

". /f possible, chec4 the motor line currents for balance.

/. The A:0T0 C0JA for this motor includes values forthe acceleration and safe stall times. /f the motor fails toreach full speed, shut off the powerimmediately./nvestigate thoroughly and ta4e correctiveaction before attempting to restart.

/t should be recognized that each start of aninduction motor sub9ects the motor to full inrush currentwith resulting heating of the stator and rotor windings.ach acceleration and repeated starts can produce moreheat than is produced and dissipated by the motor underfull load. The starting duty for which the motor isdesigned is shown by a nameplate mounted on the motorand must not be e!ceeded, if long motor life is e!pected.0bnormally low terminal voltage, e!cessive load torqueand2or e!cessive load inertia during motor start-up cancause lengthened acceleration times during which rotorventila-tion is reduced. This can cause rotor damage orcan lead to shortened rotor life.

The temperature rating of the motor is shown on themain nameplate as a temperature rise above an ambienttemperature. /f there is a service factor, it is also shown./f the motor does not have stator winding temperaturedetectors and abnormal winding temperatures 7as might

be indicated by high discharge air temperature, odor,etc.8 are suspected, the motor should be shut downimmediately and an investigation made before furtheroperation is at-tempted.

/f the motor is of TW0$ design, the ma!imuminlet water temperature and the water flow rate 7=C#8 atthe air cooler must be as shown by the outline drawing.;ther-wise, the discharge air temperature from the cooler7actually the ambient air for the motor as shown by themain nameplate8 could be too high for the motor to

properly cool.

@. 0AINTENANCE

0 carefully planned and e!ecuted program ofinspec-tion and maintenance will do much to ensurema!imum motor availability and minimum maintenancecost. /f it becomes necessary to repair, recondition orrebuild the motor, it is recommended that the nearestWestinghouse apparatus repair facility be consulted.

/n addition to a daily observation of the appearanceand operation of the motor, it is recommended that ageneral inspection procedure be established to

periodically chec4 the following items?

0. $leanliness, both e!ternal and internalB. Stator and rotor 7squirrel-cage8 windings

$. Bearings

@.1 C'ea$'"$ess

;n open ventilated motors, screens and louvers overthe inlet air openings should not be allowed toaccumulate any build-up of dirt, lint, etc. that couldrestrict free air movement. Screens and louvers shouldnever be cleaned or disturbed while the motor is inoperation because any dislodged dirt or debris can bedrawn directly into the motor.

/f the motor is equipped with air filters, they shouldbe replaced 7disposable type8 or cleaned andreconditioned 7permanent type8 at a frequency that isdictated by conditions. /t is better to replace orrecondition filters too often than not often enough.

T00$ and T$ motors require special cleaningconsiderations. The e!ternal fan must be cleaned thor-oughly since any dirt build-up not removed can lead tounbalance and vibration. 0ll of the tubes of the air-to-airheat e!changer of T00$ motors should be cleanedusing a supplied tube brush having synthetic fiber bristles7not wire of any type8. The standard cooler is equippedwith steel tubes, however, in special cases aluminum

tubes may be used and wire brushes can seriously erodethe tube interiors over several cleanings. 0ll tube

brushing should be conducted from the front 7fan end8toward the drive end of the motor such that dislodged dirtwill not fall into the fan housing.

CAUTION

=aer spra# *as)"$( of %oors "s $o re!o%:%e$ded. 0a$ua' or !o%pressed a"r !'ea$"$("s preferred. If " be!o%es $e!essar# o spra#

I.B. 4500-5

11


12/16

do*$ a %oor+ " s)ou'd be do$e *") e7re%e!are. Do $o a"% )"() pressure spra#sd"re!'# a a"r "$'e ope$"$(s+ !o$du"!o$$e!"o$s+ s)af sea's+ or (aseed surfa!eso pre&e$ )e poss"b"'"# of for!"$( *aer"$s"de )e %a!)"$e.

The stator windings of motors with open ventilationsystems can become contaminated with dirt and othersubstances brought into the motor by the ventilating air.

Such contaminants can impair cooling of the winding byclogging the air passages in the winding end-turns andvent ducts through the stator core and by reducing heattransfer from the winding insulation surfaces to thecooling air. $onducting contaminants can change orincrease electrical stresses on the insulation and corrosivecontaminants can chemically attac4 and degrade theinsulation. The end result can be degradation of theinsulation, leading to shortened insulation life andfailure.

Several satisfactory methods of cleaning stator wind-ings and stator cores are offered below?

0. $ompressed 0ir?Kow pressure 75' psi ma!.8, clean 7no oil8 and dryair can be used to dislodge loose dust and particles ininaccessible areas such as air vent ducts in the statorcore and vent passages in the winding end-turns.!cessive air pressure can damage insulation andcan drive contaminants into inaccessible crac4s andcrevices.

B. Eacuum?Eacuum cleaning can be used, both before and afterother methods of cleaning, to remove loose dirt anddebris. /t is a very effective way to remove loosesurface contamination from the winding without

scattering it. Eacuum cleaning tools should be non-metallic to avoid any damage to the winding insula-tion.

$. Wiping?Surface contamination on the winding can beremoved by wiping, using a soft, lint-free wipingmaterial. /f the contamination is oily, the wipingmaterial can be moistened 7not dripping wet8 with asafety-type petroleum solvent, such as Stoddardsolvent. /n hazardous locations, a solvent such asinhibited methyl chloroform may be used, but must

be used sparingly and immediately removed. Whilethis solvent is non-flammable under ordinaryconditions, it is to!ic and proper health and safety

precautions should be followed while using it.Solvents of any type should never be used on wind-ings provided with abrasion protection. 0brasion

protection is a grey, rubber-li4e coating applied tothe winding end-turns.

=ARNING

Adequae &e$"'a"o$ %us a'*a#s be pro&"ded"$ a$# area *)ere so'&e$s are be"$( used oa&o"d )e da$(er of f"re+ e7p'os"o$ or )ea')

)a>ards. I$ !o$f"$ed areas 4su!) as p"s5 ea!)operaor s)ou'd be pro&"ded *") a$ a"r '"$eresp"raor+ a )ose %as or a se'f:!o$a"$edbrea)"$( apparaus. Operaors s)ou'd *ear(o(('es+ apro$s a$d su"ab'e ('o&es. So'&e$sa$d )e"r &apors s)ou'd $e&er be e7posed oope$ f'a%es or spars a$d s)ou'd a'*a#s besored "$ appro&ed safe# !o$a"$ers.

@.2 S'ee&e 8ear"$(s

@.2.1 O"' C)a$("$(

The oil reservoirs of self 7not flood8 lubricatedbearings should be drained and refilled about every si!7+8 months. #ore frequent changes may be needed onhigh speed 75+'' rpm8 motors or if severe oildiscoloration or contamination occurs. /n conditionswhere contamination does occur, it may be advisable toflush the reservoir with 4erosene to remove any sediment

before new oil is added.Croper care must be ta4en to thoroughly drain thereservoir of the flushing material before refilling with thenew oil.

3efill the reservoir to the center of the oil sight glasswith a rust and o!idation inhibited, turbine grade oil.3efer to the outline for the correct viscosity.

When flood lubricated bearings are supplied, the oilshould be changed at intervals of (',''' operating hoursor every ( years.

@.2.2 D"sasse%b'#

The bearing sleeve is of the spherically seated, self-aligning type. The opposite drive end bearing isnormally insulated for larger motors 7or when specified8.;n some motors, the insulation is bonded to the sphericalseat of the bearing housing. ote that some bolts and tapped holes associatedwith the bearing housings, bearing sleeves and seals aremetric.

The following is the recommended procedure forremoving the bearing sleeve?

0. 3emove the oil drain plug in the housing bottom anddrain the oil sump.

B. 3emove all instrumentation sensors that are incontact with the bearing sleeve. These would

include resistance temperature detectors,thermocouples, temperature relay bulbs,thermometers, etc.

$. 3emove the end cover.:. 3emove the soc4et head bolts holding the bearing

cap and the inner air seal together at the horizontalsplit. The front end cover plate must also be removedif the front bearing is being disassembled. 3emovethe bearing cap and top half of the inner air seal bylifting straight up to avoid damaging the labyrinth

I.B. 4500-5

12


13/16

seals. Clace them on a clean, dry surface to avoiddamage to the parting surfaces.

. 3emove any split bolts that may be holding the twobearing halves together. 3emove the top half of thebearing sleeving using suitable eye-bolts in thetapped holes provided. Kift the bearing top straightup and avoid any contact with the shoulders of theshaft 9ournals that might damage the thrust faces ofthe bearing. Clace on a clean, dry surface ta4ingcare to prevent damage to either the parting surfacesor the locating pins that are captive in the top

bearing half.. 3emove the 7)8 screws at the partings in the oil ringand dismantle the ring by gently tapping the dowel

pin ends with a soft face mallet. 3emove the ringhalves and immediately reassemble them to avoidany mi! up in parts or damage to the surfaces at the

partings.=. When removing the labyrinth seals, ma4e note of the

position of the anti-rotation button located on theinside of the top half of the seal. Cull up the garterspring surrounding the floating labyrinth seal andcarefully slip out the top half. 3otate the garterspring until the loc4 is visible. Twist counter-cloc4wise to disengage the loc4, remove the garter

spring, then rotate the lower half of the seal out ofthe groove in the bearing housing while noting theorientation of the oil drain holes. >ote the conditionof these floating labyrinth seals. /f they are crac4edor chipped, they must be replaced. :o not attempt toreuse a damaged seal.

". To remove the bottom bearing half, the shaft must beraised a slight amount to relieve pressure on the

bearing. ;n the rear end, this can be done by9ac4ing or lifting on the shaft e!tension. 7$are mustbe ta4en to protect the shaft from damage8. ;n thefront end, 9ac4ing or lifting can be done using boltsthreaded into the tapped holes provided in the shaftend.

NOTE, Kift only enough to free the bearing, overliftingthe shaft can cause difficulty in removal of the

bearing.

/. 3oll the bottom bearing half to the top of the shaft9ournal and then lift it using suitable eyeboltsthreaded into the holes provided. 0gain avoid anycontact with the shaft shoulders that could damagethe bearing thrust faces. Clace the lower bearing halfon a clean, dry surface to protect the partingsurfaces.

=ARNING

Use e7re%e !are *)e$ ro''"$( ou )e 'o*erbear"$( )a'f. /eep )e )a$ds a$d f"$(ers*e'' !'ear of a$# pos""o$ *)ere )e# %"() be!au() b# )e bear"$( )a'f "f " *erea!!"de$a''# re'eased a$d roaed ba! o "sboo% pos""o$. Ser"ous perso$a' "$ur#!ou'd resu'.

L. Crotect the shaft 9ournal by wrapping it with clean,heavy paper or cardboard.

@.2.3 Reasse%b'#

Bearing reassembly is basically a reverse of thedisassembly procedures outlined above, with thefollowing suggestions?

I The interior of the bearing housing should becleaned and then flushed with clean oil or 4erosene.

I The bearing halves and the shaft 9ournal should bewiped clean using lint-free cloth soa4ed with clean

oil.I 0ll parts should be carefully inspected for nic4s,scratches, etc., in any contact surfaces. Suchimperfections should be removed by an appropriatemethod such as stoning, scraping, filing, etc.,followed by thorough cleaning.

I 0pply a few drops of oil to the 9ournal and bearingsaddles.

I 3oll the bottom half of the bearing into place andlower the shaft.

I Before installing the floating labyrinth seal halves,observe their condition. :o not attempt to use acrac4ed or chipped seal. The bottom half seal has aset of drilled holes in its side face. These must be

placed at thebottom toward the inside of the bearingso that accumulating oil may drain bac4 into thehousing.

I Cut a small bead of $uril-T around the seal half;.:.Ds on both sides ad9acent to the garter springgroove. This will prevent oil by-passing the sealaround its outside.

I Clace the bottom seal half on top of the shaft7ensuring that the proper orientation of the drainholes is provided and roll it into position. /nstall thetop half of the seal ma4ing sure that the anti-rotation

button is located in the proper position on theinboard side of the bearing. /nsert the garter spring

pulling up on both ends to permit engaging the loc4.

3un a small bead of $uril-T around the ;.:.Ds onboth sides ad9acent to the garter spring groove onthis half also.

I $arefully reassemble the two oil ring halves. /nspectthe dowel pins for burrs and straightness and ma4eany corrections required. :o not force the ringhalves together. !cessive force may alter theroundness or flatness of the ring which can changeits oil delivery performance. 0pply loc4ingcompound to the oil ring screws prior to reassembly.

I 0ssemble the top half of the bearing liner ma4ingsure that the match mar4s on the liner halves alignwith one another. ailure to ensure alignment ofmatch mar4s can cause misalignment and possible

damage to bearings and 9ournal surfaces. 3einstallany split bolts, if supplied, between the bearinghalves.

I Some of the pipe plugs in the housing are metricthread type. These are identified as those whichhave a copper, lead, or similar material washer. /fthese plugs are removed, be careful not to lose thewashers. Before reassembly, inspect the washers andreplace them as required.

I Before installing the bearing cap, observe theposition of the floating labyrinth seal. The AtabA

I.B. 4500-5

13


14/16

must be on top to engage the poc4et. ailure toposition the seal properly will result in damage whenthe cap is assembled.

I $arefully lower the bearing housing cap over thefloating seals. Jeep the bearing cap level to avoid

binding and possibly damaging the seals. Thebearing cap should seat evenly on the bearinghousing base.

CAUTION

Do $o for!e bear"$( !ap do*$. Da%a(e!ou'd o!!ur o )e 'ab#r"$) sea's.

/f the bearing cap does not seat completely, removeand reset the floating labyrinth seal position. Wheninstalling upper bearing cap the floating labyrinthseals sometimes rotate and the anti-rotation AtabAdoes not seat in its holder, thus preventing the

bearing housing from seating properly. Thisprocedure should be repeated until the bearing capseat properly.

I 3einstall the bearing housing split bolts. Before

torquing bearing housing cap bolts, rotate shaft byhand while bumping bearing housing with a rubberor rawhide mallet in the horizontal and a!ial planesto allow the bearings to align themselves to the shaft

9ournals.I Torque the bearing housing cap bolts by following

the torque values as provided in igure % on page &.

CAUTION

Cur"':T "s )e o$'# appro&ed !o%pou$d foruse "$ )e asse%b'# of )e bear"$(s o$ )"s%oor. O)er produ!s %a# )arde$ a$d"%pede )e opera"o$.

CAUTION

Dur"$( )e reasse%b'# of )e bear"$( pars+ a)"$ 'a#er of Cur"':T s)ou'd be app'"ed o a''(aseed a$d %a!)"$ed "$erfa!e surfa!es.T)"s su((es"o$ does $o app'# o )e%a!)"$ed surfa!es of )e bear"$( '"$er )a'&es.

CAUTION

=)e$ sea"$( )e bear"$( s)e''+ app'# a )"$'a#er of 'ube o"' a )e sp)er"!a' surfa!e of )e'"$er. S'o*'# ro'' )e 'o*er bear"$( '"$er "$o

)e bear"$( )ous"$( %a"$( sure )a )e sp'"surfa!es of )e '"$er a$d )e )ous"$( are f'us).Gradua''# 'o*er )e s)af o$o )e bear"$(.T)e *e"() of )e s)af *"'' )e'p roae )ebear"$( '"$er so )a )e babb" surfa!e of )e'"$er *"'' %a!) )e s'ope of )e our$a'.So%e"%es " "s requ"red o use a rubber%a''e o ap '"()'# o$ )e bear"$( )ous"$(*)"'e s'o*'# ro''"$( )e s)af o )e'p )"ssea"$( opera"o$.

@.3 A$":6r"!"o$ 8ear"$(s

@.3.1 Re:Greas"$(

The grease lubricant used in anti-friction bearingswill lose its lubricating ability over a period of time.This time generally is dependent upon the type of grease,the bearing size, the operating speed and the severity ofservice conditions. The frequency of regreasings is thusnot easily defined and must be based upon e!perience.Too frequent re-greasing is preferable to too infrequent

regreasing.

Before regreasing, the inlet fitting should be thor-oughly cleaned to prevent any accumulated dirt from

being carried into the bearing with the new grease./nspect the outlet at the bottom of the bearing housing. /fgrease is pac4ed behind the opening that could prevent

proper venting of the fresh grease, gently probe this areaand remove as much hardened grease as possible.

The bearings should be regreased soon after themotor is put into operation and at suitable intervalsthereafter, following the recommended schedule given inTable %, Section %', and the following procedures?

0. 0nti-friction bearings may be relubricated while themotor is running or stationary. Stationary with themotor hot is preferred. /f it is necessary to regreasewith the machine in operation, grease added should

be limited and careful attention paid to avoid overgreasing. 0ll safety precautions should be observed.

B. Thoroughly clean the inlet grease fitting. 0ccumu-lated dirt on this fitting can be carried into the

bearing with the new grease. This has been found tobe a ma9or cause of bearing failures.

$. $lean the vent hole of any hardened grease to allowfree venting of the old grease. 7Some motors aresupplied with a vent plug which must first be

removed.8 ;n motors with long grease chutes,remove the chute and clean thoroughly.

:. /ntroduce new grease slowly using a hand-operatedgrease gun. 7/f high pressure guns are used, greatcare must be ta4en to avoid over-lubrication.8 ;nlya small amount of grease is necessary for lubrication.Too much grease will cause churning, over-heating,and grease lea4age. 7>ote? Some motors for specialapplications, such as high2low ambient temperatureconditions, will require a special grade of grease. 0nameplate identifying the proper grease for theequipment has been provided. Eerify that the grease

being used is equal to or compatible to the greasethat has been recommended.8

. 3emove the grease gun and clean the grease fittingof any loose grease that could entrap dirt .

. ;perate the motor for at least %' minutes with thevent plug removed to allow any e!cess grease to ventout.

=. 3eplace the vent plug.". ;pen the bearing housing once a year to chec4 the

condition of the housing and grease. /f greasedeterioration has occurred or if contamination is

present the bearing and housing should bethoroughly cleaned out and new grease added.

I.B. 4500-5

14


15/16

$lean the parts with a suitable solvent.

@.3.2 D"sasse%b'#

Since anti-friction bearings can be ruined by evenvery small dirt particles, they must be carefully protectedat all times when they are e!posed. To minimizee!posure of the bearing to dirt, the bearing brac4et areassurrounding the bearing housing should be thoroughlycleaned before the housing is opened.

NOTE, Some motors, due to environmental conditionsor to user specification, have been provided withadditional shaft seals. Two different types areused. 0 taconite lip seal is held onto the shaftwith set screws. Koosen the set screws and slidethis seal off of the shaft. /npro seals are held in

place by pressure fit. To remove this seal,remove the bolts holding the motor bearing

brac4et and advance it forward until the rotatingelement clears the shaft shoulder and falls loose.

The bearing brac4et is removed by first raising theshaft slightly to remove the weight of the rotor off the

bearing. >e!t remove the bolts holding the inner bearing

cap and then loosen the bolts holding the bearing brac4etto the motor frame. The brac4et is then removed a!iallyuntil it clears the spigot fit. 3emove all the brac4et toframe bolts and lower the shaft until its weight issupported on the stator iron. The bearing brac4et cannow be removed leaving the bearing and inner bearingseal mounted on the shaft. 0s soon as the bearing ise!posed, it should be wrapped with clean, dry, lint-free

paper to protect it from dirt.

/f the bearing is to be removed, it should be pulledfrom the shaft using a bearing puller that e!erts all

pulling pressure against the inner race of the bearing.The bearing should not be reused if it was removed by

pulling against the outer race because it may have beendamaged.

@.3.3 Reasse%b'#

/n mounting a new bearing, e!treme care must bee!ercised to prevent e!posing the bearing to any 4ind ofdust or dirt. 0ll parts of the bearing housing, the shaft

bearing fit, and the bearing inner seal should bethoroughly cleaned of old grease and then carefullyinspected for nic4s and burrs. The inlet grease passageand the grease vent should also be cleaned.

/n preparation for mounting the bearing, the shaft

bore of the inner bearing cap should receive a coating ofrecommended grease and then be slid into place on theshaft. The bearing fit surface of the shaft should also begreased.

The bearing should be heated in an oven or in a bathof clean oil for one-half hour at a temperature of appro!i-mately &&6$ 7%'68 with the temperature nevere!ceeding %''6$ 7(%(68. When uniformly heated, the

bearing is mounted onto the shaft and held firmly againstthe shoulder until it has cooled sufficiently to remain in

position. /t is important that the bearing be protectedfrom contamination during this and the followingoperations. 0llow the bearing to cool to roomtemperature before proceeding.

Cac4 the bearing with the recommended grease.Cac4t he bearing housing in the bearing brac4etappro!imately one-half full of grease and coat the insideof the bearing seal. 0ssemble the bearing brac4et ontothe motor frame instructions per &.5.( in reverse order.

/f an au!iliary seal has been provided, reinstall it atthis time. or the taconite seal, fill the groove in thebrac4et with grease. 0dvance the seal over the shaftuntil it contacts the bottom of the brac4et groove then

bac4 it out appro!imately .'+A. 3otate the shaft by handand inspect for seal contact with the stationary housing.3ead9ust the seal if necessary. or the /npro seal, apply athin coating of lubricant to the shaft surface beforeattempting to press the /npro seal into place. Bumpingthe seal with a soft mallet or other suitable soft materialmay be necessary. !ercise caution when installing thisseal to prevent labyrinth damage.

8.4 Noise and Vibration

Any abnormal noise or vibration should be immediately

investigated and corrected. Increased vibration can be

indicative of a change in balance due to mechanical failure of a

rotor part, a stator winding problem or a change in motor

alignment.

9.0 RENEWAL PARTS

Renewal parts information for the motor and any auxiliary

devices can be obtained from the nearest Westinghouse Motor

Company sales office. A complete description of the part(s)

required is necessary, together with the complete motor

nameplate reading for positive motor identification.

I.B. 4500-5

15


16/16

10. TABLES

Table I

Recommended Schedule for

Re-Greasing Anti-Friction Bearings

Bearing Hours of Re-Greasing Schedule, Months

Type Operation 8-Hr Day 16-Hr Day 24-Hr Day

Roller

1800 Rpm and below

1000* 4 2 1 1/3

Ball

1800 Rpm

and below

3600 Rpm

2000*

1000*

8

4

4

2

2 1/3

1 1/3

NOTE: For severe exposure to dirt, weather, high humidity or high

ambient tempeature, the above time intervals should be

reduced by one-half.

Recommended Grease Quantity

Shaft Diameter

at Outside Diameter

Grease to Add

in Cubic Inches

Up to 2 3/8 inch

2 3/8 inch to 3 inch

3 to 4 inch

4 to 5 inch

1 1/4

2

3

4

1 1/4 Cubic Inches = 1 oz.., Approximately

Order Information

Westinghouse Grease No. 53701RY

19591394 teco westinghouse horizontal induction motor manual

Documents