MACHINES AND
ACCESSORIES
Page 13 of 35
3.4 Safety devices on the machine
The main safety devices present on the machine are:
the
pawl device
, when the cable is under tension;
the
cable-guide device and upper line stop
, to allow the correct winding of the cable
on the drum and to prevent the hook from knocking against the drum, at the end of the
winding phase (
Figure
3
);
The
hook closure safety device
is there to prevent the load from accidentally becoming
disconnected during normal use (
Figure 4
).
The
pawl device
acts by exploiting the characteristic of the
gears with a high reduction ratio which prevents the
retrograde motion. This phenomenon is guaranteed up to
the maximum pulling capacity: this load must not be
exceeded, as it can result in the unwinding of the cable!!!!
The
cable-guide and line stop
device is a mechanical
stop which allows the winding of the cable on the drum in a
correct and orderly way and, above all prevents the hook
from wrapping onto the drum at the end of the stroke and
damaging it (
Figure
3
).
Figure
3
Close-up of the
cable-guide / line stop.
Overheating and damage to the motor
It is good practice to avoid keeping the pull button pressed down, once the hook reaches its
line end, as the motor could suffer irreversible damage.
The
hook closure safety device
(
Figure
4
)
safeguards against the dangers due to the uncoupling /
disconnection of the load during pulling.
Figure 4 - Closure device.
Use of PPE
In any case, ALWAYS use appropriate PPE (
Figure 5
) such as:
Gloves;
Safety shoes.
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