7
Prohibited
Prohibited
Instructed
Instructed
Never lift two or more steel plates or steel members at a time.
The load may move to an unexpected direction when lifted off the
ground and as such confirm the center of gravity and the clamping posi-
tion for safety when raising. Sufficient caution should be taken until the
clamp with the load becomes completely balanced.
When changing directions of the load or any similar operations, all
personnel must be clear of the area of operation. (Fig. C)
Do not ride on the lifting load.
Never use clamp for riding or carrying
person.
Before operation, the surface of load must always be clean and
free of scale, coatings or other foreign matters that will reduce
clamping force significantly.
When raising, special attention must be given to prevent the rope
from loosening by its unintended contact with any other objects.
When raising again after the load is put on ground, reconfirm the clamp
condition.
Do not use clamp for heated load or in a corrosion liquid because safety
factor and durability will be reduced in such conditions.
Do not alter clamp by welding, cutting by gas or by any other modifica-
tion.
Do not weld electrically a load while being lifted by clamp.
Conduct daily maintenance and lubrication.
11.
12.
13.
16.
17.
18.
19.
20.
21.
22.
14.
Keep momentary inverting angle of a
steel plate within 30°. (Fig. D)
15.
Fig.C
Fig.D
Within
30°
Within
30°
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