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Users Manual

Spring Balancer

ELF-3

ELF-5

ELF-9

For safe and correct operation of the product, please be sure to read this manual and fully
understand its content before use.
After reading keep the manual safe so that you can find and use it readily.
In case of resale or transfer of this product, make sure to transfer the manual to the new owner.

BMU-0011

Issued in

December

2022

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Summary of Contents for ELF-3

Page 1: ...oduct please be sure to read this manual and fully understand its content before use After reading keep the manual safe so that you can find and use it readily In case of resale or transfer of this product make sure to transfer the manual to the new owner BMU 0011 Issued in December 2022 ...

Page 2: ...ons 6 6 6 4 4 Applicable standards 7 Installation 8 5 1 Preparation and checks before installation 5 2 Installation procedures 5 3 Post installation checks 8 9 10 Usage 11 6 1 Pre operation inspections and checks 6 2 Precautions for use 6 3 Operation method of the drum lock 11 12 13 6 4 Replacement of the tools equipment 13 Troubleshooting 15 7 1 Countermeasures 7 2 Releasing the fall arrest devic...

Page 3: ...s Indicates a PROHIBITED action that must not be performed Illustrations 3 Spring Balancer Users Manual Loss of eyesight wound burn high temperature or low temperature electric shock bone fracture poisoning and other injuries that leave aftereffects and that require hospitalization or long term outpatient treatment Burn electric shock bone fracture and other injuries that do not require hospitaliz...

Page 4: ...ty Copyright and liabilities 4 The copyright for this manual is issued to Endo Kogyo Co Ltd The manual is provided for the limited purpose of supporting the safe and proper use of the product It cannot be used for other purposes The customer may not use or make copies of this manual in whole or in part outside of this purpose without receiving prior consent from Endo Kogyo Co Ltd The customer is a...

Page 5: ...s Management supervisor Incorrect handling of this product may cause damage to the product itself as well as a fire or injury Thoroughly read the following precautions and be sure to heed the instructions when handling the machinery The maintenance should be performed by a maintenance operator who has developed sufficient knowledge and operating skill for the balancer Incorrect usage of the produc...

Page 6: ...ncer Users Manual Casing Model Factory setting load kg Stroke m Wire rope diameter φ mm Mass kg 4 2 Operating environment 4 3 Product specifications ELF 5 ELF 9 ELF 3 4 0 7 0 2 3 3 0 5 0 5 0 9 0 1 5 3 0 2 5 2 5 2 5 3 0 3 0 3 0 Approx 4 6 4 3 1 Specifications Installation location General indoor Ambient temperature 10 C to 50 C no freezing Humidity 85 or less no condensation Atmosphere Non explosiv...

Page 7: ...of the balancer If the spring tension is set lower than the minimum capacity the fall arrest device will be activated and prevent the vertical movement of the tool equipment See 0 Installation of tools equipment and adjustment of the spring tension You can lock the drum by setting the drum lock device See 6 3 Operation method of the drum lock The drum lock is used to remove the tool equipment atta...

Page 8: ...veloped sufficient knowledge and operating skill for the balancer All of the following items must be prepared by the customer Auxiliary wire rope or chain Support members metal hangers Before installing the product check that the installation location does not have any of the following problems Check that the support members have a sufficient strength Ensure that sufficient space for performing ma...

Page 9: ...alancer directly to the support member metal hanger Note The support member metal hanger and the tool equipment in the figure are indicated for reference Check that the top hook latch is closed Ensure that the balancer moves freely Prepare an auxiliary wire rope or chain that has a strength at least 10 times greater than the maximum capacity of the balancer As shown in the figure on the right atta...

Page 10: ...lso be reduced Also if the spring tension is set lower than the minimum capacity the fall arrest device will be activated and prevent the vertical movement of the tool equipment 1 2 3 Check whether the total mass weight of the tool equipment and the accessories is within the capacity range of the balancer 4 Increase tension Decrease tension Worm If the spring tension is too strong the main equipme...

Page 11: ...hook and the tool equipment If any abnormality is found as a result of inspection do not use the balancer If the range of the stroke is insufficient lower the installation height of the balancer or use an appropriate sling between the bottom hook and the tool equipment Inspect and check the following items before starting the operation Check of the surroundings 1 2 Ensure that there is no trash or...

Page 12: ...ng bolts are not loose and air is not leaking Check that the auxiliary wire rope or chain is not worn and the mounting bolts are not loose 8 Check the E type retaining ring is not removed Check that the screws and the bolts in various parts are not loose Do not move directly under the tool equipment suspended from the balancer Do not perform any modification of the balancer Do not remove tools equ...

Page 13: ...ocked Do not move directly under the tool equipment suspended from the balancer Do not remove tools equipment with the wire rope pulled out The wire rope may be quickly wound up causing an injury Confirm that the tool equipment can be moved up and down Lift the tool and wind the wire rope completely inside the drum Remove the tool equipment 6 3 1 Activation of the drum lock 1 2 Do not release the ...

Page 14: ...efore checking that the drum is securely locked by moving the tool equipment up and down If the drum is locked inadequately the drum lock may be released during the work Then the wire rope may be quickly wound up causing an injury Be sure to use the product within the capacity range Refer to the capacity range in 4 3 1 Specifications Adjust the spring tension before the operation Confirm that the ...

Page 15: ...ipment and adjustment of the spring tension The spring tension is decreased too much and the fall arrest device has been activated Release the fall arrest device See 7 2 Releasing the fall arrest device The wire rope came off the groove on the drum and is caught between the casing and the drum Return the wire rope to the groove on the drum The spring has been ruptured Replace the spring See 2 4 Re...

Page 16: ...ollowing parts If any of these parts are broken or any wear or damage is found replace them Spring Wire rope Wire guide Drum Note For the replacement of the consumables and other parts download Repair Manual from our website or contact us or your dealer For special accessories of the Spring Balancer check in the catalog linked on our website Our website http www endo kogyo co jp When disposing of ...

Page 17: ...EWS 5 EWS 7 1 1 1 1 1 1 1 1 1 How to find the parts from the list Please refer the reference number on the exploded view and choose the parts from the list according to its reference number The mark indicates the range of the set or the complete unit How to order the parts Please inform us or our distributors of the parts information which include the model part description parts number and quanti...

Page 18: ...1 1 1 1 1 1 1 1 1 1 1 1 1 13 26 P2B401573 LBP001505 LBP001524 1 1 1 11 18 18 KA60104010 P2B300951 P2B300950 P2B300952 LBP001299 P2B401587 KA10120512 KA31120500 LBP001300 2 2 2 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 Ref No Part No Description Quantity Casing assembly Casing Hook complete Hook Latch set Latch Spring Rivet Shaft Rivet Drum lock assembly Pin Spring Collar Spring pin Cap Set s...

Page 19: ... Manual 40 44 45 46 47 P2B200190 1 1 1 1 1 2 1 1 1 1 1 1 2 1 1 1 1 1 1 2 1 P2B401619 P2B400860 KA40310050 P2B300956 P2B300955 KA50200140 P2B300954 P2B401213 ELF 3 ELF 5 ELF 9 1 1 1 3 3 3 1 1 1 39 42 41 43 47 47 48 LBP300446 LBP001021 1 1 1 Ref No Part No Description Quantity Screw Cover Screw Worm Retaining ring Wire guide set Wire guide Wire guide Hex socket button bolt Name plate Name plate Name...

Page 20: ...大阪府大阪市浪速区幸町2丁目3番14号ダイトービル3F TEL 052 253 6231 FAX 052 253 6240 812 0013 福岡県福岡市博多区博多駅東3丁目11番15号文喜ビル3F TEL 052 253 6231 FAX 052 253 6240 959 1261 新潟県燕市秋葉町3丁目14番7号 TEL 0256 64 4786 FAX 0256 62 5772 E mail service endo kogyo co jp 3 14 7 Akiba cho Tsubame Niigata 959 1261 Japan http www endo kogyo co jp TEL 81 256 62 5133 本書ならびに本製品の仕様は改善のために予告なしに変更することがあります本書の内容の無断転載を禁止します improvement without advance ...

Page 21: ... correct operation of the product please be sure to read this manual and fully understand its content before use After reading keep the manual safe so that you can find and use it readily In case of resale or transfer of this product make sure to transfer the manual to the new owner ELF 9 ...

Page 22: ...tric shock bone fracture poisoning and other injuries that leave aftereffects and that require hospitalization or long term outpatient treatment Burn electric shock bone fracture and other injuries that do not require hospitalization or long term outpatient treatment Scratch bruise laceration and other injuries that have a minor impact on health Minor injury Property damage Extended damage to buil...

Page 23: ...hat are not included in this product 6 Replacement of consumables 7 Usage in violation of dangers or cautions stipulated in this manual 8 Failure damage caused by any reason that is not attributable to the manufacturer 5 Warranty exclusions such as opportunity loss Either during or after the warranty period opportunity loss damage to anything other than our product s or other duties imposed on you...

Page 24: ...oting and periodic inspections The maintenance operator is required to develop sufficient knowledge and operating skill for this product The maintenance operator should read the manual thoroughly and carry out their work with complete understanding of the equipment s characteristics and all work contents Spring Balancer Repair Manual Service engineer The management supervisor is required to have s...

Page 25: ...ntended users for this manual 1 2 3 Emergency contact in case of malfunctions 3 2 1 Daily inspections 2 2 Periodical inspections 2 3 Replacement of the wire rope 6 6 8 2 4 Replacement of the spring 9 1 4 2 11 Spring Balancer Repair Manual CONTENTS Precautions for handling 5 Maintenance 6 2 5 Spring disposal ...

Page 26: ...s or dusty atmospheres any place where water or oil may splash or near combustibles This may cause fire and injury Do not perform any modifications to the product Incorrect usage of the product may cause injury Use the product correctly in accordance with the descriptions in this manual Particularly WARNING CAUTION and NOTICE described in this manual must be fully understood and always observed In...

Page 27: ... replaced For details contact us or your dealer 2 1 Daily inspections Before starting the operation refer to 6 1 Pre operation inspections and checks of the separate Users Manual and perform the inspections and checks daily 2 2 Periodical inspections Perform an inspection at least once per month If the product is used in an unfavorable environment or used frequently reduce the interval between the...

Page 28: ...laced when the dimension has reached the limiting dimension or the limiting number of broken wires within one pitch Stop using the balancer and change the wire rope see 2 3 Replacement of the wire rope or contact us or your dealer Dimension J mm Reference dimension Limiting dimension Limiting number of broken wires within one pitch Check of the state of the wire rope Check that there is no deforma...

Page 29: ...evice to bottom Hook 30 and release the drum lock WARNING Never release the drum lock before attaching the tool device If released Wire rope 21 will snap back and could cause personal injury Spring Balancer Repair Manual 8 Do not release the drum lock when the balancer is not loaded or after the tool equipment is replaced with one with a different mass weight If the drum lock is released in such s...

Page 30: ...g on pages 10 replace the spring using the following procedure B When the spring has not broken Lift then remove the tool device from bottm hook 30 when Wire rope 28 is fully retracted into Drum 16 Remove the balancer from the fitting and place on the floor Remove Retaining ring 43 from Worm 42 Release all spring tension by turning Worm 42 to the side counterclockwise until Worm can almost be remo...

Page 31: ...side WARNING Never remove Spring 14 from Drum 13 when Spring 14 is broken near the outer periphery or the rivet of Spring is broken see Fig 2 If removed Spring 14 will expand explosively and cause personal injury Remove Spindle 14 from Drum 16 and remove Spring 18 Reassemble in reverse order First install Spindle 14 in Casing 1 then lubricate O ring 15 with grease And lubricate Spring with grease ...

Page 32: ...due to remaining tension even if it is broken Give a warning to disposal companies that the spring will expand explosively and cause danger if the spring is treated roughly or the center of the spring is pulled WARNING Spring Balancer Repair Manual ...

Page 33: ...大阪府大阪市浪速区幸町2丁目3番14号ダイトービル3F TEL 052 253 6231 FAX 052 253 6240 812 0013 福岡県福岡市博多区博多駅東3丁目11番15号文喜ビル3F TEL 052 253 6231 FAX 052 253 6240 959 1261 新潟県燕市秋葉町3丁目14番7号 TEL 0256 64 4786 FAX 0256 62 5772 E mail service endo kogyo co jp 3 14 7 Akiba cho Tsubame Niigata 959 1261 Japan http www endo kogyo co jp TEL 81 256 62 5133 本書ならびに本製品の仕様は改善のために予告なしに変更することがあります本書の内容の無断転載を禁止します improvement without advance ...

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