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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 

shown in Fig. 6, and engage the drum lock. 

 

 

See Chapter 4-2 "Drum lock operation". 

3) Move the tool/device upward and downward to 

check  Drum  is  locked  securely.  Remove  the 
tool/device from bottom Hook (40). 

 

 

 

4) Remove the balancer from the fitting and place on the floor. 

    5) Remove Plug (48), and remove old Wire rope from drum.   
    6) Insert new Wire rope from A-side, pass it through Drum. 
    7) Attach the end of Wire rope to Drum and fasten with plug (48). 

8) Install the balancer on the fitting.   
    See Chapter 3-1 

Balancer installation

 

9) Attach the tool/device to bottom Hook, and release the drum lock. 

 

WARNING 

Never release the drum lock before attaching the tool/device. 
If released, Wire rope (38) will snap back and could cause personal injury. 
Always  release  the  drum  lock  after  arranging  the  tension  of  spring  suspending  a  tool.  This  is 
important factor for safety. Never fail to abide by the procedure instructed in the manual.   

   

8. Spring replacement 

 

 

WARNING 

Never remove the spring from the spring case. If removed, the spring will expand explosively and 
cause personal injury.   
Replace the spring assembly as a whole.   

 
Referring to the disassembly drawing (on page13), disassemble the balancer using the following 
procedure.   

1) A. When the spring has broken; 

                Remove the tool/device from bottom Hook (40). 
          B. When the spring has not broken; 
                Lift  then  remove  the  tool/device  from  bottom  Hook  (40)  when  Wire  rope  (38)  is  fully 

retracted into Drum (19). 

2) Remove the balancer from the fitting and place on the floor. 

      3) Remove Gauge (50) 

4) Remove Retaining ring (55) from Worm (49). Release all spring tension by turning   

worm (49) counterclockwise until Worm can almost be removed. If the drum lock is engaged, 
check there is no spring tension remaining, and then release the drum lock.   
NOTE: Check the spring tension by pulling Wire rope.   

5) Turn Worm (49) further and remove it.     

      6) Loosen Set screws (13), and remove all Pins (12). 

 

WARNING 

Never  remove  the  suspended  tool/device  before 
checking Drum (19) is locked securely. 
If Drum (19) is not locked securely, the drum lock 
could be released allowing Wire rope to snap back 
or  Drum  to  rotate  suddenly,  possibly  causing 
personal injury. 
Drum lock check is very important for safety.   
Never fail to verify the sufficient in the manual.   

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Содержание EWA-15

Страница 1: ...AL SPRING BALANCER EWA 15 ENDO KOGYO CO LTD BM 10097 WARNING Read this manual before use Keep this manual available Issued on Dec 2012 C o p i e d d i g i t a l d a t a f r o m h t t p w w w e n d o k...

Страница 2: ...e 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 also prohibited from translating or modifying the content of...

Страница 3: ...pment Please read these messages and follow these instructions carefully CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury damage or destruction of...

Страница 4: ...e damage caused by use of non genuine parts 3 Failure damage caused by fire earthquake natural disaster or other unexpected incident 4 Incident caused by fall shock negligence or by inadequate storage...

Страница 5: ...3 3 Working stroke cable travel check 4 Use 4 4 1 Safety instructions on use 4 2 Drum lock operation 4 3 Tool device replacement 5 Troubleshooting 6 5 1 Common malfunctions and their causes 5 2 Soluti...

Страница 6: ...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 rope is extended Never pull the wire rope...

Страница 7: ...case of the cutting The device is only for emergency 3 Installation 3 1 Balancer installation WARNING Install the balancer correctly Incorrect installation could cause personal injury or damage to th...

Страница 8: ......

Страница 9: ...rely If the drum is not locked securely the drum lock could be released allowing the wire rope to snap back possibly causing personal injury Drum lock check is very important factor for safety Never f...

Страница 10: ...g 2 4 Attach the new complete tool device to the bottom hook Releasing the drum lock WARNING Never release the drum lock when the balancer is unloaded If released the wire rope will snap back possibly...

Страница 11: ...cause personal injury or damage to the balancer Therefore be careful but thorough when making repairs When the fall prevention device has engaged because the spring tension is set under the minimum ca...

Страница 12: ...n and install Gage 50 and Pins 12 See Chapter 8 Spring replacement In case that the Wire rope snap back protection has actuated by sudden retrieve 1 Pull out Wire rope 38 and release Ratchet 26 suspen...

Страница 13: ...eceives excessive shock Wire rope pulling out or excessive shock to the Balancer will release Wire rope snap back protection causing personnel injury Wire rope will be retrieved about 100mm 200mm rapi...

Страница 14: ...hich are detected Make the inspection interval shorter when operating frequently or under hostile environments See Fig 5 Service limit of top hook Fig 5 Limit dimension mm A B C D 11 7 15 5 44 0 1 5 S...

Страница 15: ...g case If removed the spring will expand explosively and cause personal injury Replace the spring assembly as a whole Referring to the disassembly drawing on page13 disassemble the balancer using the...

Страница 16: ...ring by turning worm 49 clockwise NOTE While turning Worm Wire rope 38 will be retracted into drum 19 Pay attention Wire rope does not slip out from the drum groove After Wire rope is fully retracted...

Страница 17: ...Always replace old ones with new ones when they are remove Tighten the hex Socket bolts with torque of 2 8 3 0N m 0 28 0 3kgf m 6 Mount the balancer on a fitting Refer to Chapter 3 1 Balancer Installa...

Страница 18: ...3 1 Latch 4 1 Spring 5 1 Rivet 6 1 Shaft 7 1 Rivet 8 P2B400347 1 Pin 9 P2B400081 1 Spring 10 P2B400224 1 Spring pin 11 P2B400348 2 Cap 12 P2B400044 3 Pin 13 P2B400041 3 Set screw 14 P2B301252 1 Spind...

Страница 19: ...Wire rope assembly 38 1 Wire rope 39 1 Thimble LBP001505 1 Hook complete 40 1 Hook LBP001524 1 Latch set 41 1 Latch 42 1 Spring 43 1 Rivet 44 1 Lock tube 45 1 Lock tube 46 P2B400150 1 Collar 47 P2B400...

Страница 20: ......

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