Endo EWA-15, Instruction Manual

Page: 15 / 20

Ｗ ｉ ｎ ｄ ｏ ｗ
Ｗ ｉ ｒ ｅ ｒ ｏ ｐ ｅ
Ｐ ｌ ｕ ｇ （ ４ ８ ）
Ｐ ｉ ｎ （ ８ ）
Ｈ ｏ ｏ ｋ （ ４ ０ ）
Ｃ ｏ ｌ ｌ ａ ｒ （ ４ ６ ）
Ｂ ｕ ｆ ｆ ｅ ｒ （ ４ ７ ）
Ｗ ｉ ｒ ｅ ｒ ｏ ｐ ｅ （ ３ ８ ）
Ｄ ｒ ｕ ｍ （ １ ９ ）
Ｗ ｉ ｒ ｅ ｒ ｏ ｐ ｅ
ｅ ｎ ｔ ｒ ａ ｎ ｃ ｅ ｈ ｏ ｌ ｅ
Ａ
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.
Copied
digital
data
from
http://www.endo-kogyo.co.jp/