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Endo EW-3 User Manual

Spring balancer
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Users Manual
Spring Balancer
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.
EW-3
EW-5
BMU-0006
Issued in October 2023

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Summary of Contents for Endo EW-3

  • Page 1 Users Manual Spring Balancer EW-3 EW-5 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.

  • Page 2: Table Of Contents

    Spring Balancer Users Manual CONTENTS Introduction.....................3 Notation in this manual ....................Scope of warranty and liabilities for the equipment ............. Definition of intended users for this manual ..............Emergency contact in case of malfunctions ..............5 Precautions for handling...............5 Unpacking and Installation..............5 3-1   Packaging arrangement and transportation ...........

  • Page 3: Introduction

    Spring Balancer Users Manual   Introduction Thank you very much for your purchasing of the Spring Balancer. To prevent any trouble and obtain the best performance, please be sure to read this manual and fully understand its content. Notation in this manual Hazard levels This product is designed with ultimate priority on the safety of operators.

  • Page 4: Scope Of Warranty And Liabilities For The Equipment

      are outside the scope of the warranty. Copyright and liabilities 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.

  • Page 5: Emergency Contact In Case Of Malfunctions

    Spring Balancer Users Manual The management supervisor is required to have sufficient knowledge of the product and advanced operating skill for this product. Management The management supervisor should manage not only the product itself but on-site supervisor operations that handle the product, comprehensively. In The service engineer is a worker with special knowledge and skills for installing the product, investigating the causes of a failure or damage, and performing repairs Service engineer...

  • Page 6: Disposal Of Packing Materials

    After opening the package, dispose of any packing and cushioning materials in accordance with the local regulations of the area where the product is used.   Product Description 4-1 Components 4-1-1 Main equipment （EW-3,5） Top hook Secondary support hanger Casing Spindle Cover Wire rope...

  • Page 7: Applicable Standards

    Spring Balancer Users Manual 4-4   Applicable standards Machinery Directive 2006/42/EC ■ EN ISO 12100 : Sefety of machinery General principles for design Risk assessment risk reduciion Note: Only the standard specification of this product complies with the standards. If the product is used in combination with non-standard parts or modified by the customer, the standards may no longer be complied with.

  • Page 8: Installation Procedures

    Spring Balancer Users Manual 5-2 Installation procedures 5-2-1 Installation of the Spring Balancer CAUTION Do not fix the top hook. Using the product with the top hook fixed may cause damage or a fall. ●  Use a support member (metal hanger) with no opening as shown in the figure on the right, so that the balancer does not come off while in motion.
  • Page 9 Spring Balancer Users Manual CAUTION Loosen the auxiliary wire rope or chain to allow the balancer to move freely. Damaged and falls The slack must be such that the balancer stops within 100 mm if the top hook or the support member (metal hanger) for the Within balancer are damaged and the balancer...

  • Page 10: Post-Installation Checks

    Spring Balancer Users Manual 5-3 Post-installation checks 5-3-1 Checking the working range (stroke) Do not extend the wire rope beyond the stroke. Doing so may damage the balancer. Ensure that work can be performed within the range of the stroke. For the stroke of each product, see “4-3-1 Specifications”.

  • Page 11: Precautions For Use

    Spring Balancer Users Manual Check of the main equipment of the balancer ■ For the main equipment of the balancer, perform the following inspections and checks. Check that the top and bottom hooks are not worn and can rotate smoothly. Check that the latches of the top and bottom hooks are not deformed and do not come off the hooks.

  • Page 12: Operation Method Of The Drum Lock

    For the method of the periodical inspections, download “Repair Manual” from our website and refer to “2-2 Periodical inspections” in “Repair Manual”. http://www.endo-kogyo.co.jp If the product is used in an unfavorable environment or used frequently, reduce the interval between the...

  • Page 13: Troubleshooting

    Spring Balancer Users Manual   Troubleshooting 7-1 Countermeasures? WARNING ● Do not remove the tool (equipment) attached to the wire rope end until the cause of the failure is identified. If the tool (equipment) is removed, the wire rope may be quickly wound up, causing an injury.

  • Page 14: Dimensional Drawing

    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/   Disposal of Product When disposing of the product, follow the local regulations of the area where the product to be disposed, and dispose it as industrial waste.

  • Page 15: Parts List

    ● How to order the parts Please inform us or our distributors of the parts information which include the model, part description, parts number and quantity. Example model ： EW-3 parts name ： drum parts number ： quantity ： 1 P2B200033...
  • Page 16 Spring Balancer Users Manual Parts list Quantity Ref.No. Part No. Description EW-3 EW-5 LBP000074 Casing assembly P2B100011 ーCasing ーRatchet P2B400184 ーScrew KA10220614 ーHook complete LBP000241 ーーHook LBP000240 ーーLatch set ーーーLatch ーーーSpring ーーーRivet ーーShaft ーーRivet Spindle P2B300073 Drurm P2B200033 Spring Spring...
  • Page 17 FAX  ：   052-253-6240 サービス営業グループ 〒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。 This manual and the specifications of this product are subject to change for ●...
  • Page 18 Repair Manual Spring Balancer EW-3 EW-5 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.

  • Page 19: The Product And Performing Maintenance Procedures. The Indications For "Warning", "Caution", And "Notice" Are In Order Of Risk Significance (Warning > Caution > Notice). Their Details Are

    Spring Balancer Repair Manual   Introduction Thank you very much for your purchasing of the Spring Balancer. To prevent any trouble and obtain the best performance, please be sure to read this manual and fully understand its content. Notation in this manual Hazard levels This product is designed with ultimate priority on the safety of operators.
  • Page 20   are outside the scope of the warranty. Copyright and liabilities 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.
  • Page 21 Spring Balancer Repair Manual Definition of intended users for this manual This manual has been prepared to help all intended users involved with this product. From the stand point of safety, we have defined intended users according to their ability and experience and provided detailed descriptions for each group.
  • Page 22 Spring Balancer Repair Manual CONTENTS Introduction .................... 1 Notation in this manual ....................Scope of warranty and liabilities for the equipment ............Definition of intended users for this manual ..............Emergency contact in case of malfunctions ..............3 Precautions for handling ................. 5  Maintenance .................... 6 Daily inspections ....................Periodical inspections ..................

  • Page 23: Precautions For Handling

    Spring Balancer Repair Manual   Precautions for handling 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.

  • Page 24: Maintenance

    See the figure below and measure the dimensions of the hook. The hook must be replaced when any dimensions have reached the limiting dimensions. Stop using the balancer, and contact us or your dealer. Operating limit of the top hook Limiting dimension (mm) Model EW-3 10.0 12.0 33.5 EW-5...
  • Page 25 Spring Balancer Repair Manual Operating limit of the bottom hook Limiting dimension (mm) Model EW-3 16.5 41.0 EW-5 2-2-2 Inspection of the wire rope See the figure below and measure the dimension of the wire rope. The wire rope must be replaced when the dimension has reached the limiting dimension or the limiting number of broken wires within one pitch.

  • Page 26: Replacement Of The Wire Rope

    Spring Balancer Repair Manual Replacement of the wire rope WARNING ● Never remove the suspended tool / device while the wire rope is extended.  ● Take care when releasing the spring tension. A torque is on the spindle and it could move the tool you are holding.

  • Page 27: Spring Or Drum Replacement

    Spring Balancer Repair Manual disassembly drawing Case Drum Spring Spindle Ratchet Plug Wire rope Bottom hook 2-4 Spring or drum replacement WARNING ● Never remove the spring from the drum. If removed, the spring will expand explosively and cause personal injury. ●...
  • Page 28 FAX  ：   052-253-6240 サービス営業グループ 〒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。 This manual and the specifications of this product are subject to change for ●...

This manual is also suitable for:

Ew-5

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