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).
9) Remove Cover (32).
NOTE: Replace Wheel (34), Ratchet (26),Spring (31) etc. if they has damaged.
10) Install Cover (32).
11) Mount Cap screw (36).
12) Install Worm (49), and attach Retaining ring (55).
13) Adjust the spring tension, and install Gauge (50) and Pins (12).
See chapter 8
“
Spring replacement
”
, 10-11)
■
In case that Snap back protection has actuated due to wire rope cut etc.
WARNING
If snap back protection has actuated due to Wire rope cut etc, Stop operation at once and
perform proper solution. Wire rope will be retrieved suddenly, causing injury of personal in
case that the damaged Wire rope is pulled out or machine receives 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
rapidly.
1) Lock Drum according to Chapter 4-2 [Drum lock operation]
2) Remove retaining ring (55) from Worm (49) after checking the sure lock of drum.
3) Release all spring tension by turning Worm (49) counterclockwise, and remove Worm.
4) Take off a Spring balancer from the support.
5) Loosen Set screw (13), and remove all pins (12).
6) Remove Gauge (50).
7) Remove Cap screw (36).
8) Remove Cover (32).
NOTE: Replace Wheel (34), Ratchet (26), Spring (31) etc. if they has been damaged.
9) Install Cover (32).
10) Mount Cap screw (36)
11) Install Worm (49), and attach Retaining ring (55).
12) Equip Wire rope (38) to Drum (19) after passing Wire rope through the Wire rope entrance
on Casing (1) and then fix wire rope with Plug (48).
13) Adjust the spring tension, and install Gauge (50) and Pins (12).
See Chapter 8
“
Spring replacement
”
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