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Endo EWA-15 Instruction Manual

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INSTRUCTION MANUAL
SPRING BALANCER
EWA-15
WARNING
･Read this manual before use.
･Keep this manual available.
ENDO KOGYO CO., LTD.
BM-10097
Issued on Dec. 2012

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Summary of Contents for Endo EWA-15

  • Page 1 INSTRUCTION MANUAL SPRING BALANCER EWA-15 WARNING ･Read this manual before use. ･Keep this manual available. ENDO KOGYO CO., LTD. BM-10097 Issued on Dec. 2012...
  • Page 2 Copyright and liabilities The copyright for this manual belongs 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.
  • Page 3 ＳＡＦＥＴＹ ＡＬＥＲＴ ＳＹＭＢＯＬ ＡＮＤ ＡＬＥＲＴ ＳＩＧＮＳ ＳＩＧＮＳ Please read this manual carefully and follow its instructions. The SAFETY ALERT SYMBOL ( ), WARNING, CAUTION, and NOTE carry special messages. This SAFETY ALERT SYMBOL is used to call your attention to items or operations that could be dangerous to you or other persons using this equipment.
  • Page 4 Scope of warranty and liabilities for the equipment 1. We will repair or replace the product free of charge if a failure due to manufacturing defects occurs under proper usage during the warranty period. For details, contact us or your dealer. 2.

  • Page 5: Table Of Contents

    CONTENTS Safety instructions････････････････････････････････････････････1 2. Description of product･････････････････････････････････････････････2 2-1. Specifications 2-2. Main features Installation･････････････････････････････････････････････････ 2 3.1. Balancer installation 3.2. Tool/device attachment and spring tension adjustment 3.3. Working stroke (cable travel) check 4. Use･･････････････････････････････････････････････････････････････4 4.1. Safety instructions on use 4.2. Drum lock operation 4.3.

  • Page 6: Safety Instructions････････････････････････････････････････････1

    Safety Instructions WARNING ・ Incorrect use of the spring balancer could personal injury. ・ Observe instructions in the manual and use the balancer correctly. ・Install the balancer correctly. ・Never stand under the suspended ・Always attach a secondary support tool/device. cable or chain. ・Never remove tool/device while the wire ・Be careful when handling the spring.

  • Page 7: Description Of Product･････････････････････････････････････････････2

    2. Description of product 2-1. Specifications Model Capacity range(kg) Cable travel(m) Mass(kg) EWA-15 9~15 Approx.4.7 ■Working conditions Application area : Indoor and normal atmospheric conditions Temperature range: -10 ﾟC to +50 ﾟC 2-2. Main features ■Fall prevention device A mechanism to prevent the suspended tool/device from falling to the maximum cable travel in case of spring breakage.

  • Page 9: Use･･････････････････････････････････････････････････････････････4

    4. Use 4-1. Safety instructions on use WARNING ・Never remove tool/device from the bottom hook while the wire rope is extended. ・Never stand under the suspended tool/device. ・Never alter the balancer. CAUTION ・Always use within the capacity range of the balancer. ・Always adjust the spring tension before use.

  • Page 10: Tool/Device Replacement

    4-3. Tool/device replacement ■Method 1 - With drum lock 1) Lock the drum according to Chapter 4-2 "Drum lock operation" Remove the suspended tool/device. WARNING Move the tool/device upward and downward to check the drum is locked securely. Never remove the tool/device before checking this. If the drum is not locked securely, the drum lock could be released allowing the wire rope to snap back, possibly causing personal injury.

  • Page 11: Troubleshooting････････････････････････････････････････････････････6

    Troubleshooting WARNING If a malfunction occurs during operation, stop operation immediately and take the necessary steps to rectify the problem. Never remove the suspended tool/device before identifying causes of the malfunction. If removed, the wire rope will snap back and could cause personal injury. Never take off a tool suspend to make the work safe.
  • Page 12 8) Attach Pins (12) to Casing (1). Fasten depressions in pins (12) with set screws (13). WARNING If installation of Safety pin (52) or pins (12) is incorrect or missed, the fall prevention device will not operate in case of spring breakage, causing personal injury or damage to equipment. Fig.
  • Page 13 4) Release all spring tension by turning Worm (49) counterclockwise, and remove Worm. 5) Remove the tool/device from bottom (40), and remove the balancer from the fitting. 6) Loosen Set screw (13), and remove all pins (12). 7) Remove Gauge (50). 8) Remove Cap screw (36).

  • Page 14: Inspections････････････････････････････････････････････････････････9

    6. Inspections WARNING Periodically inspect the balancer, and replace any worn or damaged parts. CAUTION Always use genuine parts for replacement. ■Inspect the balancer at least once a month. Correct and repair any problems which are detected. Make the inspection interval shorter when operating frequently or under hostile environments. (See Fig.

  • Page 15: Wire Rope Replacement･････････････････････････････････････････････10

    7. Wire rope replacement Fig.6 1) Lower the tool/device, extending Wire rope to the maximum cable travel. 2) Position Plug (48) at the casing opening as Ｗ ｉ ｎ ｄ ｏ ｗ shown in Fig. 6, and engage the drum lock. Ｗ...
  • Page 16 7) Remove Plug (48), and remove Wire rope (38) from Drum (19). 8) Remove Cover (32), and remove Spring case (21), Drum (19), and Spindle (15), together from the Casing(1). 9) Remove Spindle (14). 10) Remove Hex. head bolt (24), and remove Spring case (21) from Drum (19). 11) Remove Bushing (23) from Spring case (21) .

  • Page 17: Wire Guide Replacement････････････････････････････････････････････12

    9. Wire guide replacement 1) Pull out the wire rope (57), (58) to the position Fig. 8 which wire guide replacement is available and lock drum with drum lock device(refer to Fig-8). Refer to Chapter 4-2 ”Drum lock operation”. 2) After confirming that drum lock is surely on work, moving a suspended tool up and down, take off a suspended tool WARNING...
  • Page 18 10. PARTS LIST EWA-15 Ref. No. Part No. Quantity Description LBP001097 Casing assembly P2B100131 -Casing LBP000262 -Hook complete --Hook － LBP000263 --Latch set ---Latch － ---Spring － ---Rivet － --Shaft － --Rivet － P2B400347 -Pin P2B400081 -Spring P2B400224 -Spring pin...
  • Page 19 Ref. No. Part No. Quantity Description LBP001822 -Safety pin set --Safety pin － --Spring － --Spacer － --Retaining ring － -Cover － P2B300163 Bushing KA00120510 Hex. head bolt KA31120500 Spring washer LBP001662 Ratchet set -Ratchet － -Pin － P2B301254 Plate KA31120600 Spring washer KA20320600...

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