dismantling and assembly guide

7/24/2019 Dismantling and Assembly Guide

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Dismantling and assembly guideFlameproof motors,

Ex d/Ex de

M3JP/KP/JM/KM 280 - 450


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ABB Oy, Motors and Generators/ Dismantling and Assembly guide M3JP/KP/JM/KM 280 to 450 EN, 10-2015 2

Table of contents

1. Validity .................................................................................................................................................. 3

2. General .................................................................................................................................................. 3

3. Maintenance and lubrication ................................................................................................................ 4

4. Storing and mounting of bearings ......................................................................................................... 4

5. Occupational safety ............................................................................................................................... 4

6. Required tools........................................................................................................................................ 4

7. Dismounting and lifting of the motor .................................................................................................... 5

8. Removal of difficult and jammed parts ................................................................................................ 5

9. Cleaning and drying of parts................................................................................................................. 5

10. Checking the usability of the parts........................................................................................................ 6

11. Motor screws ......................................................................................................................................... 6

12. Shaft seals, V-rings ................................................................................................................................ 6

13. Waste handling ...................................................................................................................................... 7

14. Flamepath and spigot dimensions ......................................................................................................... 8

General description ..................................................................................................................................... 8

M3KP/JP/JM/KM 280-315 ........................................................................................................................... 9

M3KP/JP/JM/KM 355.................................................................................................................................10

M3KP/JP/JM/KM 400.................................................................................................................................11

M3KP/JP/JM/KM 450.................................................................................................................................12Terminal box M3JP/JM 280 - 315 ...............................................................................................................13

Terminal box M3JP/JM 355 - 400 ...............................................................................................................14

Terminal box M3JP/JM 355-400 .................................................................................................................15

Terminal box M3JP/JM 355-400 (made of welded steel) ..............................................................................16

Terminal box M3JP/JM 450 ........................................................................................................................17

15. Motor dismantling and assembly .........................................................................................................18

15.1. Terminal box dismantling and assembly.........................................................................................18

15.2. D-end dismantling .........................................................................................................................21

15.3. N-end dismantling .........................................................................................................................23

15.4. Dismounting of the bearings ..........................................................................................................25


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15.5. Cleaning and inspection of components .........................................................................................26

15.6. Mounting of new bearings .............................................................................................................28

15.7. D-end assembly ............................................................................................................................31

15.8. N-end assembly ............................................................................................................................34

15.9. Mounting of an additional plate .....................................................................................................39

16.............................................................................................................................

Motor construction 39

1. Validity

These instructions are valid for the following ABB electrical machines (for bothmotors and generators in service):

M3JP/KP/JM/KM frame sizes 280 to 450

M3JP/JM-motors have an Ex d terminal boxM3KP/KM-motors have an Ex e terminal boxThe photographs in the instruction picture set have been taken from the M3JP 280SMA 4 Ex d motor. Other sizes of motors may look different than those in theinstruction photos.

2. General

A qualified person is to perform the disassembly and assembly of the motors, usingappropriate tools and instructions in accordance with the working methods. Only


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trained personnel fully acquainted with Ex-standards are allowed to carry out repairsof Ex-motors.All the repairs of Ex-motors are to be performed according to the standard IEC/EN60079-19 while complying with the valid national occupational safety norms. Otherconditions to be met for repairing Ex-motors see in the Installation, Operation,Maintenance and Safety Manual delivered with the motor.

3. Maintenance and lubrication

More detailed information on matters related to the motor maintenance, lubricationand lubricants can be found from the Installation, Operation, Maintenance and SafetyManual delivered with the motor. Available also separately upon request. Grease forlubricating bearing seats is e.g. ROCOLASP or Klber ALTEMP Q NB50 orequivalent.Non-hardening joint grease for spigots is e.g. DSAX-RK2 TK Penetral.

4. Storing and mounting of bearings

The bearing manufacturers effective specifications and instructions must beobserved during the storing, handling and mounting of bearings.

Information of the bearing types and sizes are to be found in chapter 15.6. Otherinformation about bearings and their lubrication are in the Installation, Operation,

Maintenance and Safety Manual delivered with the motor.

5. Occupat ional safety

During maintenance work, special attention must be paid to occupational safetyconcerning the lifting and transfer of heavy objects, handling of hot objects as well asgreases and solvents. The current electrical safety regulations must be observedwhen making electrical connections. For the lifting of heavy objects, ensure that theavailable lifting accessories are suitable and have been inspected. For the heating ofbearings and other components, fire safety (using a gas burner) as well as the use of

suitable tools and heat-resistant gloves must be taken into consideration. Protectivegloves must be used when handling solvents for the removal of grease and oils fromparts. Contact with oil-based products and solvents may lead to allergy symptoms.

6. Required tools

The dismantling and assembly of the motor is executed quickly and smoothly whenthe proper tools are used. In addition to the basic tools, some special ones are alsorequired.The required tools are:

- rotor lifting accessory (for lifting the rotor to the correct position)- hydraulic extractor (for dismounting the bearings)


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- induction heater or electric heating plate (for heating the bearings)- gas burner (for heating the end shields)- cable wire cutters (for cutting connector cables)- copper hammer (for dismounting the end shield)- guide pin (x2) (for aligning the bearing cover)- pneumatic nut driver (for the end shield/cover screws)

- pry bar (x2) (for dismounting the end shield)

7. Dismounting and lifting of the motor

Only an authorized and qualified specialist familiar with the safety requirements isallowed to disconnect the motor. Eyebolts must always be used when lifting motorsunless stated otherwise in the lifting instructions.

Ensure that the motor eyebolts are in good condition before proceeding with thelifting. Do not use damaged eyebolts.

The threaded eyebolts must be tightened before lifting. If necessary, the eyeboltsmust be adjusted to the correct position by using suitable plate washers. Detailedinstructions of various lifting situations are in the Lifting instructions.

8. Removal of diff icult and jammed parts

Depending on the working environment, parts of especially old motors may havebecome jammed into place. This may make the removal of parts very difficult. Thejammed parts normally include the end shields and covers as well as parts of the

terminal box. During the removal of the jammed parts, using excessive force and/ordamaging any part of the motor, particularly the machined surfaces, must beavoided. Do not damage the end shield and shaft flamepaths in Ex d(e)-motors andadditionally the terminal box flamepaths in Ex d motors.

9. Cleaning and drying of parts

Depending on the conditions, a lot of dirt and grease can accumulate inside andoutside of the motor. The accumulated dirt and grease can be very difficult to removefrom the stator and rotor surfaces, as well as from between the coils. This is a reason

to clean the stator and rotor by washing.Cleaning with water is recommended for the general wash, which is executed byusing a high-pressure cleaner. If necessary, solvents may be used to clean extremelydirty and greasy motors. During the cleaning of the stator coils, do not aim thepressure jet directly into the coils.

After washing, dry the stator and the rotor in an oven. The oven temperature is to be90 C for 12 to 16 hours, and after this 105 C for 6 to 8 hours.


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10. Checking the usability of the parts

When changing the bearings, the condition of the parts must be inspected. Theinspection applies mainly to the condition of the end shields and terminal box, as wellas the shaft bearing fits. The machined surfaces of the end shields, covers andterminal box must be intact. There must not be any significant corrosion nor wear onthe shaft bearing journals and in the end shield bearing housings.Machined guide surfaces, spigots, are forming the flamepathes in Ex d(e)/de-motors,and they have to be protected against any kind of even slightest damage. Defectiveparts must be replaced.Refer to IEC 60079-19 and ABB training documents about parts which can berepaired and the allowed repair methods.

11. Motor screws

The motor screws must meet certain strength requirements. Damaged screws are tobe replaced with screws of the same grade. The grade is indicated on a sticker onthe frame. As a general requirement, these must be grade 8.8/10.9 screws or A4-80/A4 BUMAX109 stainless screws. The use of weaker screws is forbidden.

Tightening torques for screw are given in the respective chapters below.

12. Shaft seals, V-rings

Motors in standard version for IP55 class have shaft seals as shown below. IP higherthan 55 are all with labyrinth seals. Change V-ring seals always after disassembling amotor. A new V-ring has to be mounted with the correct dimension. Mountingdimensions in table 1 below.

Table 1: seal types

Motor

size

D-end N-end

2-poles 4 -poles 2-poles 4 -poles

280 Labyrinth Labyrinth seal V-ring, d=80/ B=9+/-1 V-ring, d=80/ B=9+/-1



400 Labyrinth Labyrinth seal Labyrinth seal V-ring, d=95/ B=9+/-1

450 Labyrinth seal Labyrinth seal

d= nominal diameter in mm; B= axial dimension after assembly in mm


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13. Waste handling

All waste generated from the replacement of bearings must be disposed ofappropriately. After cleaning, the old bearings may be considered as mixed steel andcast iron scrap. Lubricants, greasy cloths and rubber seals are hazardous waste.


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Terminal Box Cover Ex d

Terminal Box Intermediateplate (Ex d)

Intermediate plate Stator frame

Stator frame Endshield

Endshield Innerbearing cover

Shaft Innerbearing cover

14. Flamepath and spigot dimensions

General description

The Ex d(e)-motor parts, which have machined flamepath surfaces (spigots), must be

handled carefully. Do not damage or rub these surfaces. The points of the flamepathsurfaces are presented in the figure below.

The terminal box and its parts form a spigot only in M3JP/JM-motors (Ex d), not inM3KP-motors.


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M3KP/JP/JM/KM 280-315

Table 1. Gap and spigot dimensions [mm]

Position I / IIB IICI

min. length 62 82

max. width 0,40 0,26

IImin. length 62 82


IIImin. length 16 28,7-16 16 28,7-16 Flat: 7max. width 0,07 0,14 0,07 0,14 0

IVmin. length 16 28,7-16 16 28,7-16 Flat: 7max. width 0,07 0,14 0,07 0,14 0

Vmin. length 5 27 - 5 5 27 - 5

max. width 0,07 0,20 0,08 0,15

VI min. length 5 27 - 5 5 27 - 5max. width 0,07 0,20 0,08 0,15

VII See spigot III of tables 4, terminal box intermediate plate.


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M3KP/JP/JM/KM 355

Table 2. Gap and spigot dimensions [mm]Position I / IIB IIC

I min. length 62 62max. width 0,39 0,25

IImin. length 62 62


IIImin. length 20 40 - 20 20 40 - 20max. width 0,15 0,19 0,15 0,19

IVmin. length 20 40 - 20 20 40 - 20max. width 0,15 0,19 0,18 0,20

Vmin. length 6 28,5 - 6 6 28,5 - 6max. width 0,07 0,20 0,04 0,15

VI

min. length 6 28,5 - 6 6 28,5 - 6

max. width 0,07 0,20 0,04 0,15

VIISee spigot III of tables 5-7, terminal box intermediateplate.


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M3KP/JP/JM/KM 400


Position I / IIB IIC

I min. length 62 62max. width 0,39 0,26

IImin. length 62 62


IIImin. length 5 40 - 5 5 40 - 5max. width 0,15 0,20 0,15 0,20

IVmin. length 5 40 - 5 5 40 - 5max. width 0,15 0,20 0,15 0,20

Vmin. length 8 30 - 8 8 30 - 8max. width 0,07 0,2 0,05 0,15

VI

min. length 8 30 - 8 8 30 - 8

max. width 0,07 0,2 0,05 0,15

VII See spigot III of tables 5-7, terminal box intermediate plate.


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M3KP/JP/JM/KM 450


Position I / IIB Remarks

Imin. length 60

Identical to IImax. width 0,38

IImin. length 60

Detail Bmax. width 0,38

IIImin. length 5 42 - 5 Flat: 3

Flat part = VIII in detail Amax. width 0,15 0,20 0

IVmin. length 5 42 - 5 Flat: 3

Flat part = IX in detail Cmax. width 0,15 0,20 0

Vmin. length 35

Identical to VI

max. width 0,12VI

min. length 35Detail B

max. width 0,12

VII See spigot III of tables 10, terminal box intermediate plate.


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Terminal box M3JP/JM 280 - 315

Table 5. Spigot dimensions [mm]

Position I, IIB and IIC

Imin. length 30

max. width 0,13

IImin. length 27

max. width 0,13

IIImin. length 26,5

max. width 0,12


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Terminal box M3JP/JM 355 - 400



I

min. length 30

max. width 0,13

IImin. length 27

max. width 0,13

IIImin. length 27

max. width 0,12


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Terminal box M3JP/JM 355-400



Imin. length 33

max. width 0,15

IImin. length 39

max. width 0,15

IIImin. length 27

max. width 0,13


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Terminal box M3JP/JM 355-400 (made of welded steel)



Imin. length 33

max. width 0,15

IImin. length 36

max. width 0,15

IIImin. length 27

max. width 0,13


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Terminal box M3JP/JM 450


Position I / IIB

I

min. length 33

max. width 0,15

IImin. length 39

max. width 0,15

IIImin. length 30

max. width 0,2


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15. Motor dismantling and assembly

15.1. Terminal box dismantling and assembly

Picture 1.Remove the terminal box cover screws.

Remove also protective covers for screws ifthere are some.

Picture 2.Remove the terminal box cover. The covercan be rotated to a different position tofacilitate the removal. If necessary, remove itwith the help of the pry bar. Do not damagethe flamepath of the cover!

Picture 3.When assembling terminal box, ifthere are protective covers forscrews install them under thescrew. The opening of the coversneeds to be to the middle of theterminal box.


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Picture 4.Disconnect the control equipment wires fromtheir terminals (or remove the terminal blockrail) and clips. Finally, make sure that all thewires have been disconnected from theterminals.

Remove the terminal box mounting screws.

Picture 5.Fix eyebolts into the threaded holes forthe cover and lift the terminal box off.

Picture 6.

Remove the intermediate flange screws.


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Picture 7.Cut the winding terminal cables as well asthe control equipment wires. (This is doneonly if the intermediate flange or statorpack is changed.)

Picture 8.Fix eyebolts into the threaded holes of theintermediate flange and lift the flange off.

For remounting of KP-terminal box (Ex e):

Clearances between live parts and between live and grounded parts:

For Ex e-boxes: 12 mm

For Ex nA-boxes: 7 mm

The terminal box assembly is done in the reverse order of the disassembly. Thenew cables must be carefully connected correctly into place according to theirmarkings. For terminals in Ex de-motors the spring washers are functionning asanti-twisting devices and must be remounted.


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15.2. D-end dismantling

Picture 9.Remove the key from the shaft.

Picture 10.

Remove the locking ring from the shaft,if there is one. Pull the labyrinth seal offfrom the base of the bearing cover withthe extractor.

Alternatively, remove the V-ring.

Picture 11.Remove the bearing cover screws andpull the bearing cover off the shaft.

Take the cover off without scraping thesurface or the shaft. Remove alsoprotective covers for screws if there aresome.


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Picture 12.Fix suitable lifting hooks into the top-mostmounting holes of the shield. Protect theshaft from possible surface damage,which can be made by the shield duringits removal. Fix screws into two adjacent

mounting holes. Remove the end shieldfrom the guide by turning push screwsagainst the frame. Remove the end shieldwith the crane. Do not damage theflamepath surfaces of the frame and endshield. (The end shield can also beremoved by mounting the extractor ontothe end shield with the existing M16threads. See top arrow.)

Picture 13.Depending on the mounting position, somemotors may have the shield in such a positionthat the use of push screws is not possible. Inthat case, the shield must be removed fromthe guide with the help of pry bars. Removethe end shield from the guide with the help ofa pry bar and a copper hammer. Place the

pry bar head behind the fastening lug and tapthe pry bar head gently. Also hit the fasteninglug on the opposite side of the shield. Do notdamage the machined guide surfaces!


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15.3. N-end dismantling

Picture 14.Remove the extended grease andvibration measuring nipples passingthrough the motor N-end fan cover.

Picture 15.Remove the fan cover screws and takethe cover off. Make sure that the greasevalve handle does not bend. Fan coversof JM motors have to be removed by

using a lifting accessory.

Picture 16.Remove the locking ring located in frontof the fan.


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Picture 17.Pull the fan off the shaft. If necessary,take an extractor and use the two squareholes in the fan for it.Do not pry the fan off against the endshield. After this, remove the key from

the shaft as well as the locking ringbehind the fan.

Picture 18.

If there is a labyrinth seal at the N-end ofthe motor, it must be removed before thebearing cover. First remove the lockingring possibly located in front of thelabyrinth seal and pull off the labyrinthseal with the extractor.

Or alternatively remove the V-ring.

Picture 19.Remove the bearing cover screws andpull the bearing cover off the shaft.


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NOTE! Begin the bearing change by removing the D-end bearing first. Theremoval of the N-end bearing is executed in the same manner as the removal ofthe D-end bearing.

Picture 20.Remove the end shield screws. Fixsuitable lifting hooks into the top-mostmounting holes of the shield. Protect the

shaft from possible surface damage whichcan be made by the shield during itsremoval. Fix screws into the two adjacentmounting holes. Remove the end shieldfrom the guide by turning push screwsagainst the frame. Remove the end shieldwith the crane. Do not damage theflamepath surfaces of the frame and endshield. (The end shield can also beremoved by mounting the extractor ontothe end shield with the existing M16 threads. See top arrow.)

15.4. Dismounting of the bearings

Picture 21.Push the inner bearing cover off thebearing and pull the rotor slightly out fromthe inside of the stator. Please note thedetached coil springs possibly located inthe bearing seats (not in all motor types).Do not damage the shaft flamepath

surfaces by unnecessarily rotating ormoving the bearing cover. The rotor ispulled outwards to prevent damaging thewinding ends, either when dismountingthe bearing with the extractor or byheating.

Place the extractor jaws behind the bearing outer ring and pull the bearing off. Ifthere is a valve disc possibly in front of the bearing, it will come off simultaneously.After this, pull the bearing cover off the shaft. For the removal of the N-end bearing,the locking ring located in front of the valve disc must be removed first. In somemotors there is a wave spring between the bearing and the valve disc which must beremoved. (NOTE! Never re-mount a bearing back into the motor with the extractorbecause the extractor will damage the bearing!)


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Picture 22.Pull the rotor horizontally out of the stator.Be careful not to damage the winding and

avoid bumping the rotor against the statorsurfaces.

Use an appropriate tool to lift the rotor outof the motor.

Picture 23.If no tool is available, use a long steeltube to lift the rotor off.

15.5. Cleaning and inspect ion of components

Picture 24.

Wipe the grease off the inner bearingcovers and check all machined surfaces.If the flamepath surfaces are damaged,then the cover must be replaced with anew one.Wash the bearing covers and dry theseafterwards.


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Picture 25.Clean the machined surfaces and theflamepath surfaces of the end shields. Donot use a hard scraper on flamepathsurfaces. Visually inspect the surfaces.If flamepath surfaces are damaged, then

the shield must be replaced with a newone.If bearing housing surfaces are damagedor are out of tolerance, they can berepaired.

Picture 26.Clean and check the condition of therotor. If necessary, it can also bewashed. The washing and drying isdone as per section 8 of the cleaningand drying instruction.

Picture 27.Clean and check the condition of the

shaft end, bearing seat and flamepathsurfaces. (Undersized bearing journalsmay be fill-covered and machined to thecorrect dimension. This is not allowedfor the flamepath surfaces).


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Picture 28.

Clean the machined guide surfaces(spigots) for the end shields.

Clean and check the condition of the inside

of the stator pack and the winding. Ifnecessary, wash the stator and dry as persection 8 of the Cleaning and dryinginstructions.

15.6. Mounting of new bearings

Security measures while mounting the bearings:

Examine the bearing parts and remove all burrs. Clean the shaft and shoulders and

check the condition of the bearing joint faces. Examine the seals (if any) and changethese if they are damaged. Always change the rubber seals.

Do not remove the new bearings from their packing until just before mounting.Protect the bearings from impurities for as long as possible. Check the surfaces ofthe bearing rings, especially of isolated bearings. Do not mount damaged bearings.

Leave the rust-preventive grease in the bearing except for the hole and the outer ringsurface. Wipe the surfaces with industrial turpentine and allow to dry.

Bearing types and sizes (if not otherwise indicated on the nameplate):

Motorsize

poles 280 315 355 400 450

D-end 2 6316/C3 6316/C3 6316M/C3 6317M/C3 6317M/C34 - 12 6316/C3 6319/C3 6322/C3 6324/C3 6326M/C3

N-end 2 6316/C3 6316/C3 6316M/C3 6317M/C3 6317M/C34 - 12 6316/C3 6316/C3 6316/C3 6319/C3 6322/C3

Measure the insulation resistance of the stator winding according to the methodstated in the Installation, Operation, Maintenance and Safety Manual.


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Picture 29.Push the rotor into the stator through theD-end. Be careful not to damage thewinding ends and avoid bumping the rotoragainst the stator inner surfaces.

Use an appropriate tool to lift the rotor intothe motor, or use a long tube as shown inpicture 22.

Picture 30.Push the inner bearing cover onto theshaft, being careful not to damage theflamepath surfaces.Install the coil spring to the inner bearing

cover if applicable.

Picture 31.

Heat the bearing to a temperature of110C e.g. with an induction heater or anoven. (Do not, however, heat the bearingwith an open flame or gas burner.)

Begin by mounting the bearing on the D-end. To do this, the rotor must be firstput in to place. The mounting of the N-end bearing is executed in the samemanner following the D-end assembly. NOTE!Pay careful attention to thecleanliness of the work environment and the tools during the assembly of themotor and especially during the handling of the bearings.


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Picture 32.

Fill the bearings with grease.

Picture 33.Push the heated bearing onto the shaft

firmly against the shaft shoulder.

Picture 34.Heat the valve disc to a temperature of 110C, e.g. with an induction heater or an oventhe same way as done with the bearings.


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Picture 35.Push the heated valve disc onto the shaftagainst the bearing. Mount the wave springinto place in then N-end in front of the valvedisc, if applicable.

15.7. D-end assembly

Picture 36.Fill the end shield grease channel using agrease gun.

Picture 37.Spread aluminum-based, non-hardeningsealing paste onto the machined guidesurfaces (spigots) of the frame.

More detailed lubrication instructions canbe found from the Installation, Operation,Maintenance and safety Manualdelivered with the motor.


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Picture 38.Heat the D-end shield with a gas burneraround the bearing housing to a

temperature of about 70 C. Do not heatthe outer part of the shield!

Picture 39.Screw a guide pin through a hole for thebearing cover into the threaded hole ofthe inner bearing cover. Push the heatedend shield on top of the bearing andagainst the guide surface of the framewith the help of the crane. Do not damagethe spigot surfaces!

Picture 40.If there are protective covers for screwsinstall them under the screw. Theopening of the covers needs to be downwards.


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Screw Grade Yield Strength Tightening Torque (Nm)

M10 8.8 / A4-80 600 Nm/mm2 48

M12 10.9 / A4 BUMAX109 900 Nm/mm2 83

M20 8.8 / A4-80 600 Nm/mm2 395

M24 8.8 / A4-80 600 Nm/mm2 670

Picture 41.Fix the end shield screws (M20 or M24depending on the shaft height). Usecross-tightening. (The screw type andtorque table can be found next page.)

Picture 42.

Push the outer bearing cover into placeagainst the shield. Remove the guide pinand fix the bearing cover screws (M10).

Picture 43.Heat the labyrinth seal to a temperature of110 C, e.g. with an induction heater or anoven.Then push the heated labyrinth seal ontothe shaft inside the bearing cover. Mountthe locking ring in front of the labyrinthseal and the key into the shaft keyway.

Do not damage the felt seal located onthe base of the bearing cover.


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More detailed lubrication instructionscan be found from the Installation,Operation, Maintenance and SafetyManual delivered with the motor.

15.8. N-end assembly

Picture 44.Mount the locking ring in front of the valvedisc and screw a guide pin into thethreaded hole of the inner bearing cover.

Picture 45.Fill the end shield grease channel using agrease gun.

Picture 46.Grease the inner surfaces of the bearing

housing. Use KLBER ALTEMP Q NB 50sliding paste or equivalent.


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Picture 47.Spread aluminum-based, non-hardeningsealing paste onto the machined spigotsurfaces of the frame.

Picture 48.Screw a guide pin into the threaded holeof the bearing cover. Push the endshield on top of the bearing and againstthe guide surface of the frame with thehelp of the crane. Do not damage thespigot surfaces! Fix the end shieldscrews (M20 or M24 depending on theshaft height). Use cross-tightening. (Thescrew type and torque table can foundon the following page.)

Picture 49.Spread aluminum-based, non-hardeningsealing paste onto the spigot surfaces of

the end shield and bearing cover. Pushthe bearing cover into place against theshield.


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Screw Grade Yield Strength Tightening Torque (Nm)

M10 8.8 / A4-80 600 Nm/mm2 48

M12 10.9 / A4 BUMAX109 900 Nm/mm2 83

M20 8.8 / A4-80 600 Nm/mm2 395

M24 8.8 / A4-80 600 Nm/mm2 670

Picture 50.Remove the guide pin and fix the bearingcover screws (M10). Mount the V-ringonto the shaft.

Picture 51.Some motors have a labyrinth seal also atthe N-end. Heat the labyrinth seal beforethe installation to a temperature of 110C, e.g. with an induction heater or anoven.

Push the heated labyrinth seal onto theshaft inside the bearing cover. Mount thelocking ring in front of the labyrinth seal.Do not damage the felt gasket located onthe base of the bearing cover.

Picture 52.Mount the locking ring onto the shaftbehind the fan. Mount the fan key intoplace and push the fan against the lockingring. Mount the other locking ring in frontof the fan.

Check that there is enough clearancebetween fan and endshield.


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Picture 53.

Mount the grease nipple and its extension.

Greasing of the bearings

Picture 54.Grease the N-end bearing through the

end shield grease channel using agrease gun. At the same time, rotate therotor slowly by hand so that the greasewill spread evenly.

(NOTE! The grease valve must be openwhile greasing. Shut the grease valveoutlet after greasing.)

More detailed lubrication instructions can be found from the Installation,Operation, Maintenance and Safety Manual delivered with the motor.


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Picture 55.Dismount the grease nipple again.Mount the fan cover into place. Makesure that the grease valve handle doesnot be displaced. Tighten the fan coverscrews.

Check, that the fan rotates freely.Fan covers of JM motors have to belifted by using a lifting accessory.

Picture 56.Mount the extended grease and vibrationmeasuring nipples passing through themotor N-end fan cover.


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15.9. Mounting of an additional plate

An additional plate, e.g. repairers work job plate, can be mounted on a safe place onthe motor frame or on the fan cover.

It is recommended to use a durable sticker or a plate fixed by rivets.If the mounting place is on the frame, only cooling rips or dedicated places foradditional plates shall be used.

If holes have to be drilled, use a very short drill in order not to penetrate the framewall.

If the place is on the fan cover, make sure that the rivets do not diminish the safetygap between the fan and the cover below the requirements, which is = (diameter offan)/ 100 (mm)


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16. Motor construction


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ABB Oy, Motors/ Dismantling and Assembly guide M3JP/KP/JM/KM 280 to 450 EN, 10-2015 41

11 Stator, completeStnder, komplettStator completEstator completoStatore, completoStator, komplettStaattori, tydellisen

12 Endshield for D with screws17 D-seitiges Lagerschild mit Schrauben

Flasque CC, avec visEscudo lado acople, con tornillosScudo cuscinetto lato AS, con vitiD-ndans lagerskld, med skruvarLaakerikilpi D, ruuveineen

12 Flange shield with screws17 Flanschlagerschild mit Schrauben

Flasque bride, avec visEscudo brida, con tornillos

Scudo flangiato, con vitiFlnslagerskld, med skruvarLaippalaakerikilpi, ruuveineen

13 Endshield for N with screws19 N-seitiges Lagerschild mit Schrauben

Flasque COC, avec visEscudo lado ventilador, con tornillosScudo cuscinetto lato NS, con vitiN-ndans lagerskld, med skruvarLaakerikilpi N, ruuveineen

18 Bearing for D

D-seitiges LagerRoulement CCCojinete lado acopleCuscinetto lato ASD-ndans lagerKuulalaakeri D

24 Bearing for NN-seitiges LagerRoulement COCCojinete lado ventiladorCuscinetto lato NSN-ndans lagerKuulalaakeri N

25 RingRingBagueAnilloAnelloMellanringVlirengas

26 Valve disc for NN-seitige VentilscheibeDisque d'vacuation de graisse COCDisco de evacuacin de grasa lado ventilador

Disco paragrasso lato NSN-ndans ventilskivaImurengas N

28 Locking ring for DD-setige SicherungsringCirclips CCAnillo de seguridad lado acopleAnello di bloccaggio lato ASD-ndans lsringTerspidtinlaatta D

30 Pre-loading spring for bearingsVorspannfeder fr lagerRessort de pre-charge des paliersMuelle de precarga de cojinetesMolla di pre-carico cuscinettiFrspnnings fjder fr lagerLaakeroinnin esikuormitusjousi

31 Pre-loading spring for bearingsVorspannfeder fr lagerRessort de pre-charge des paliersMuelle de precarga de cojinetesMolla di pre-carico cuscinetti

Frspnnings fjder fr lagerLaakeroinnin esikuormitusjousi

34 Inner bearing cover for D with screws49 D-seitiger innerer Lagerdeckel mit Schrauben

Couvercle intrieur du roulement CC avec visTapa interior del cojinete lado acople, con tornillosCoperchio cuscinetto interno lato AS, con vitiD-ndans inre lagerlock, med skruvarLaakeripohja D, ruuveineen

35 Valve disc for DD-seitige VentilscheibeDisque d'vacuation de graisse CCDisco de evacuacin de grasa lado acopleDisco paragrasso lato ASD-ndans ventilskivaImurengas D

36 Inner bearing cover for N with screws50 N-seitiger innerer Lagerdeckel mit Schrauben

Couvercle intrieur du roulement COC avec visTapa interior del cojinete lado ventilador, con tornillosCoperchio cuscinetto interno lato NS, con vitiN-ndans inre lagerlock, med skruvarLaakeripohja N, ruuveineen

38, Outer bearing cover with screws, D-end49 D-seitiger usserer Lagerdeckel mit Schrauben

Couvercle extrieur du roulement CC avec visTapa exterior del cojinete lado acople, con tornillosCoperchio cuscinetto esterno lato AS con vitiD-ndans yttre lagerlock med skruvarD-pn laakerikansi ruuveineen


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40 Grease outlet valve for D-endSchmierfettauslassventil fr D-SeiteValve d'evacuation de graisse CCVlvula de evacuacin de grasa, lado acopleValvola di scarico grasso Lato accoppiamentoFettutloppsventil fr D-ndaRasvanpoistoventtiili D-phn

41 Handle for grease outlet valve, D-endGriff fr Schmierfettauslassventil fr D-SeitePoigne de la valve d'evacuation de graisse CCManeta de vlvula de evacuacin de de grasa ladoacopleAsta apertura/chiusura valvola scarico grasso D-latoHandtag fr fettutloppsventilen, D-ndaRasvanpoistoventtiilin kahva, D-p

43 Grease outlet valve for N-endSchmierfettauslassventil fr N-SeiteValve d'evacuation de graisse COC

Vlvula de evacuacin de grasa, lado ventiladorValvola di scarico grasso lato NSFettutloppsventil fr N-ndaRasvanpoistoventtiili N-phn

44 Handle for grease outlet valve, N-endGriff fr Schmierfettauslassventil fr N-SeitePoigne de la valve d'evacuation de graisse COCManeta de vlvula de evacuacin de grasa ladoventiladorAsta apertura/chiusura valvola scarico grasso N-latoHandtag fr fettutlopps ventilenRasvanpoistoventtiilin kahva, N-p

45, Outer bearing cover with screws, N-end50 N-seitiger usserer Lagerdeckel mit Schrauben

Couvercle extrieur du roulement COC avec visTapa exterior del cojinete lado ventilador, con tornillosCoperchio cuscinetto esterno lato NS con vitiN-ndans yttre lagerlock med skruvarN-pn laakerikansi ruuveineen

47 V-ring for NN-seitiger V-ringJoint V-ring COCV-ring escudo lado ventilador

Guarnizione a V lato NSN-ndans V-ringN-pn V-rengas

51 Grease nipple for bearing, D- and N53 Schmiernippel fr D- und N-seitiges Lager

Graisseur CC et COCTetinas de engrase para cojinetes lado acople y ladoventiladorIngrassatore per cuscinetto lato AS e lato NSSmrjnippel fr D- och N-ndans lagerVoitelunippa D, N

54 PlugStpofenBouchonTaponTappoProppTulppa

55 Nipple extensionNippelverlngerungExtension du conduit de graisseurProlongacin de la tetina de engraseProlunga ingrassatoreNippelfrlngningVoitelunipan jatke

57, SPM-nipples, D and N58 D- and N-seitiger SPM-Menippel

Prises pour capteurs SPM CC et COCTapn medidor de vibraciones SPM, lado acople ylado ventiladorAttacco SPM lato albero e lato ventolaSPM-mtnipplar, D- och N-ndaSPM-nippa, D- ja N

61 FanLfterVentilateurVentiladorVentolaFlktTuuletin

63 Key

PafederClavetteChavetaChiavettaKilKiila

64 Locking ringSicherungsringCirclipsAnillo de seguridadAnello di bloccaggioLsring

Terspidtinlaatta

65 Locking ringSicherungsringCirclipsAnillo de seguridadAnello di bloccaggioLsringTerspidtinlaatta


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67 Fan cover with screws and clamps69 Lfterhaube mit Befestigungselementen70 Capot de ventilateur avec vis et pices de fixation71 Protector ventilador con tornillos y abrazadera72 Copriventola con viti ed attacchi

Flktkpa med skruvar och klmstyckenTuulettimen suojus ruuveineen ja pitimineen

73 KeyPafederClavetteChavetaChiavettaKilKiila

75 Rating plateLeistungsschildPlaque signaltiquePlaca de caractersticasTarghetta dati

MrkskyltArvokilpi

80 Re-greasing plateSchmierschildPlaque de graissagePlaca de engraseTarga di lubrificazioneSmrjskyltVoiteluohjekilpi

478 Lead-through rubberGummidurchfhrungTravers en coutchoucGomma de orificioGoma pasa cablesGenomfringsgummiLpivientikumi

The spare parts list is available from ABBService.


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