REMA WF Série Mode D'emploi page 30

Item

Lowering the load,
and removing the
clamps

How to connect the
clamps to slings

Hoisting a tapered
material

Hoisting two loads
suspended at
different heights,
and hoisting two
loads suspended
together

Vertically hoisting a
steel pipe
Precautions and explanatory diagrams

Lower the suspension load gently so that it
does not shake.

When lowering the load to the ground, select a
stable location and take care that the load does
not tilt or topple over.

To remove each clamp, first confirm that after
the load has reached the ground the sling has
become adequately slack, then turn the screw
in the slackening direction, and when a
clearance is formed, grasp the clamp and
place it on the floor or a workbench.
When using
two clamps, be
sure to use two
chain slings or
wire ropes.
Do not connect
the chain slings
or wire ropes
Shackle
directly to the
clamps.
Members whose grip surfaces
are inclined with respect to
each other and are gripped in
the slip-off direction may be
hoisted provided that the angle
of inclination is less than 10.
Do not hoist two loads
suspended at different
heights, or hoist two
loads together.
When a steel pipe, for example, is to be hoisted
vertically, attach the clamp with the screw cap on
the outside, as a general rule.
Two leg chain
or wire rope
Single leg
chain
or wire rope
Connex
sytem
Less than 10°
Two loads
Two loads
suspended suspended
at different together
heights
30
Reason
Confirm that the vicinity of the
load lowering point is safe.
If you drop the load, the screw
may strike the teeth, causing
damage to these parts.
Do not connect a single chain
sling or wire rope to two
clamps. This is because if the
sling slips, a greater load than
the predicted load will be
generated due to the tilt and
impact force of the suspension
load, which in turn may cause
an accident.
If the chain sling or wire rope
is connected directly to the
suspension ring of the clamp,
it may become seriously
damaged by the corner of the
suspension ring.
If the position that is gripped
by the clamp is inclined in the
slip-off direction, and the angle
of inclination is large, the
screw cap and the cam may
fail to cut into the suspension
load, resulting in the load
slipping.
If two loads are suspended at
different heights, the worker
will be forced to stand beneath
the suspension loads, which is
dangerous.
If two loads are suspended
together, the clamps will touch
each other, resulting in
possible damage.
If you install the clamp with the
screw cap on the inside,
because of its construction the
screw cap may fail to be
adequately pushed against
the suspension load,
preventing the necessary
tooth cut-in for hoisting the
load from being obtained.
Screw cap
Clearance is
formed