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1SDH000460R0012 - L5560 Emax Detailed Instructions about Cleaning And Greasing • READ THIS MANUAL CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS CIRCUIT BREAKER. • File these instructions with other instruction books, drawings and descriptive data of the circuit breaker. Keep this manual available for the installation, operation and maintenance about this equipment. Use of these instructions will facilitate proper maintenance of the equipment and prolong its useful life. • Install the Emax circuit breaker within the design limitations as described in the Installation and service instructions shipped with the circuit breaker. These circuit breakers are designed to operate within the current and voltage limitations on the switch nameplate. Do not apply these switches to systems with current and/or voltages that exceed these limits. • Follow your company’s safety procedures. • Do not remove covers, open doors or work on equipment unless power has been turned off and all circuits de-energized. WARNING • Detailed descriptions of standard repair procedures, safety principles and service operations are not in- cluded. It is important to note that this document contains warnings and cautions against certain specific service methods that could cause personal injury to service personnel, damage equipment, or render it unsafe. These warnings do not cover all conceivable ways in which service, whether or not recommended by ABB, might be performed, or the possible hazardous consequences of each conceivable way, nor could ABB investigate all such ways. Anyone using service procedures or tools, whether or not recommended by ABB, must satisfy himself thoroughly that neither personal safety, nor equipment safety, will be jeopar- dized by the service method or tools selected. Should further information be required or specific problems arise that are not sufficiently covered, refer the matter to an ABB service representative. • This publication is written only for qualified persons and is not intended to be a substitute for adequate training and experience in the safety procedures for this device. • The purchaser, installer or ultimate user is responsible for ensuring that warning signs are attached and all access doors and operating handles are securely locked when the gear is left unattended, even momentarily. • All information contained in this manual is based on the latest product information available at the time of printing. We reserve the right to make changes at any time and without prior notice

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Page 1: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

1SDH000460R0012 - L5560

Emax

Detailed Instructions about Cleaning And Greasing

• READ THIS MANUAL CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS CIRCUIT BREAKER.

• File these instructions with other instruction books, drawings and descriptive data of the circuit breaker. Keep this manual available for the installation, operation and maintenance about this equipment. Use of these instructions will facilitate proper maintenance of the equipment and prolong its useful life.

• Install the Emax circuit breaker within the design limitations as described in the Installation and service instructions shipped with the circuit breaker. These circuit breakers are designed to operate within the current and voltage limitations on the switch nameplate. Do not apply these switches to systems with current and/or voltages that exceed these limits.

• Follow your company’s safety procedures.

• Do not remove covers, open doors or work on equipment unless power has been turned off and all circuits de-energized.

WARNING• Detailed descriptions of standard repair procedures, safety principles and service operations are not in-

cluded. It is important to note that this document contains warnings and cautions against certain specific service methods that could cause personal injury to service personnel, damage equipment, or render it unsafe. These warnings do not cover all conceivable ways in which service, whether or not recommended by ABB, might be performed, or the possible hazardous consequences of each conceivable way, nor could ABB investigate all such ways. Anyone using service procedures or tools, whether or not recommended by ABB, must satisfy himself thoroughly that neither personal safety, nor equipment safety, will be jeopar-dized by the service method or tools selected. Should further information be required or specific problems arise that are not sufficiently covered, refer the matter to an ABB service representative.

• This publication is written only for qualified persons and is not intended to be a substitute for adequate training and experience in the safety procedures for this device.

• The purchaser, installer or ultimate user is responsible for ensuring that warning signs are attached and all access doors and operating handles are securely locked when the gear is left unattended, even momentarily.

• All information contained in this manual is based on the latest product information available at the time of printing. We reserve the right to make changes at any time and without prior notice

Page 2: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

WARNING• This document does not substitute any instruction or information contained in the Installation and Service

Instructions Manual, doc. number 1SDH000460R0002 (hereafter referred to as manual) shipped with the breaker.

• This document gives a more complete explanation of the maintenance activities described in section 8.3.5 or 8.4.5 of the above mentioned manual.

• The document is fitted on fixed circuit breakers. Withdrawable circuit breakers may have some differences.

• This document is suitable for all breakers of the Emax family, regardless of the frame size or the number of poles or the trip unit or the breaker version (Old Emax or New Emax)

• Use of substances (diluents, oils or greases) differing from those specified in the manual or in this docu-ment may jeopardize personal safety or damage the equipment. In case of doubt about such substances, contact ABB for explanations.

• Contact the ABB service organization if the breaker functions badly, is damaged, or fails to pass all the tests after the maintenance activities have been completed.

1- Before starting maintenance

•Followallthestepsinthemanualinchapter8“Maintenance”uptoparagraph8.3.5forfirstlevelmaintenanceorparagraph8.4.5forsecondlevelmaintenance

• DISCONNECT MAIN CIRCUIT AND AUXILIARY CIRCUITS FROM THE POWER SOURCE

• ENSURE THE BREAKER IS OPEN WITH CLOSING SPRING DISCHARGED

Page 3: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

2 - Remove tab and cap

•Removethetab(1)ofthereleasebyrotatingthescrews(2)asshowninfigure.

•Removethefrontcap(3)bylooseningthefourscrews(4).

•Removesideguards(5)bylooseningthefrontandsidescrews

3 - Remove the motorgear

•Loosenthehexscrewwhichfixesthemotorgearontheleftsideofthecircuit-breaker(3A).

•Removethemotorgearslidingittotheleftandthenpullingitout(3B).

4 - Remove the coils support

•Loosenthescrewontherightsideofthecircuit-breaker(4A).

•Removethesupportpullingdowntheleverandthenpullingoutthesupportgroup(4B).

•Ifpreviouslyanunder-voltagereleasewasinstalledpreventingmainspringsdischarging,performnowaclosingandopeningoperationtodischargemainsprings.

5

3A 3B

4A 4B

Page 4: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

5 - Lift the opening button

•Tohavebetteraccesstobreakeroperatingmechanism,liftupcarefullytheopening(red)buttonpullingittotheright(5A)andthenturningitup(5B).

6 - Shafts cleaning (1)

•ForcleaningpurposesusediluentsuchasHenkel273471

•Cleantheseatofthethreeshaftsshowninthepictureontheoutsideandinsideoftherightshoulder

•Repeatthesameoperation,ontheseatofthethreeshaftsontheleftshoulder,bothinsideandoutside.

•Useabrushtohelpgetoldgreaseanddirtout.Makesuretooperateallshownparts,whileapplyingthecleaner.

7 - Shafts cleaning (2)

•ForcleaningpurposesusediluentsuchasHenkel273471

•Cleanthehookinthepointshowninthepictures

•Useabrushtohelpgetoldgreaseanddirtout.Makesuretooperateallshownparts,whileapplyingthecleaner.

5A 5B

Page 5: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

8 - Hooks cleaning (1)

•ForcleaningpurposesusediluentsuchasHenkel273471

•Cleanthehookinthepointshowninthepictures

•Useabrushtohelpgetoldgreaseanddirtout.Makesuretomoveallshownparts,whileapplyingthecleaner.

9 - Hooks cleaning (2)

•ForcleaningpurposesusediluentsuchasHenkel273471

•Cleanthehooksinthepointshowninthepictures

•Useabrushtohelpgetoldgreaseanddirtout.Makesuretooperateallshownparts,whileapplyingthecleaner.

10 - Check effectiveness of cleaning (1)

•Turntheshaftasinthepicture•Pullthehookasinthepicture•Releasetheshaft•Releasethehook•Thecleaningiseffectiveifthehookresetsbehindtheshaftinstantaneouslywithoutslowmovingofeithertheshaftorthehook

Page 6: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

11 - Check effectiveness of cleaning (2)

•Turntheshaftasinthepicture•Pushthehookasinthepicture•Releasetheshaft•Releasethehook•Thecleaningiseffectiveifthereisnoslowmovingofeithertheshaftorthehook

12 - Shafts lubrication (1)

•LubricatetheseatofthethreeshaftsshowninthepictureontheoutsideandinsideoftherightshoulderwithasmallamountofEXXONMobilSHC524oil(eg2drops≈0,2ml).Excessiveoilneedstobecleanedup.Makesuretooperateallmovingpartswhileapplyingtheoil.

•Repeatthesameoperation,ontheseatofthethreeshaftsontheleftshoulder,bothinsideandoutside.

13 - Shafts lubrication (2)

•LubricatetheseatofhookshowninthepicturewithasmallamountofEXXONMobilSHC524oil(eg2drops≈0,2ml).Excessiveoilneedstobecleanedup.Makesuretooperatethepartswhileapplyingtheoil.

Page 7: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

14 - Hooks greasing (1)

•Greasethehooksandtheshaftsintheshownpoints

•UseEXXONMobilMobilgrease28forgreasing

15 - Hooks greasing (2)

•Greasethehooksandtheshaftsintheshownpoint

•UseEXXONMobilMobilgrease28forgreasing

16 - Other operating mechanism parts greasing (1)

•Greaseotherpartsoftheoperatingmechanismintheshownpoint

•Forpictureontheleftgreasesymmetricalpointsaswell

•UseEXXONMobilMobilgrease28forgreasing

Page 8: Detailed Instructions about Cleaning And Greasing€¢ Reassemble circuit breaker using the following tightening torques: - Motorgear 9 Nm - Coils support 2 Nm - Covers 1,1 Nm •

17 - Other operating mechanism parts greasing (2)

•Greaseotherpartsofthecircuitbreakerintheshownpoint

•Forpictureontherightgreasesymmetricalpointsaswell

•UseEXXONMobilMobilgrease28forgreasing

18 - Circuit breaker reassembly and testing

•Puttheopening(red)buttoninitsoriginalposition•Reassemblecircuitbreakerusingthefollowingtighteningtorques:-Motorgear 9Nm-Coilssupport2Nm-Covers1,1Nm•Continuethemaintenancefollowingthemanualchapter8“Maintenance”paragraph8.3.6forfirstlevelmaintenanceor

paragraph8.4.6forsecondlevelmaintenance•Donotputthebreakerinserviceifitfailstopassallthefinaltestsafterthemaintenanceactivitieshavebeencompleted.

PleasecontacttheABBserviceorganization.

DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY• There are no understandings, agreements, representations of warranties, expressed or implied, including

warranties of merchantability or fitness for a particular purpose, other than those specifically set out by an existing contract between the parties. Any such contract states the entire obligation of the seller. The contents of this document shall not become part of or modify any prior or existing agreement, commitment or relationship.

• The information, recommendations, descriptions and safety notations in this document are based on ABB experience and judgment with respect to circuit breakers. This information should not be considered to be all inclusive or covering all contingencies.

For more information please contact: ABB S.p.A. ABB SACE Division

ABB Breakers & Switches Service. www.abb.com


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