Safety Devices - Tractel Group scafor 408C Série Instructions D'emploi Et D'entretien

3.2. Regular inspection
Safety devices must be examined daily:
a) anti-tilt device (on fixed stirrups, TANGOR
platforms): tilt the platform until the safety device of
the lower hoist locks. Take the load up on this hoist
and then reopen the jaws by lifting the yellow
operating lever (17).
b) no-load device: the safety jaws should lock when
the platform touches the ground. Slightly raise the
platform and then reopen the jaws by lifting the
yellow operating lever (17).
c) centrifugal brake eed the lifting wire rope (A) into
the unit until it stops and then quickly pull it back. The
weights of the inertia block of the centrifugal brake
should click, showing that they are free to turn.
3.3. Anchoring
Position the scafor™ on the stirrup with the rounded
side of the casing facing the operator, as in fig. 2. Fix it
with the two anchor pins (65) and tighten the nuts (66).
3.4. Feeding in the wire ropes
The lifting (A) and safety (B) ropes have the same
diameter: 8.4 mm.
Make sure that the diameter of the rope corresponds to
that indicated on the hoist's label. Lightly lubricate the
ropes with an oil-soaked rag. The wire ropes should
always be in good condition with their tips rounded.
Fig. 3
3.4.1. Lifting wire rope
Through the top of the casing, insert the tip of the lifting
rope into the rope guide which is furthest from the
operator.
Turn the right hand handle (4) in the lifting direction,
while pushing the rope down until it comes out of the
unit.
Continue to turn the handle until the rope is under load
with around 20 kg to overcome the no-load spring.
To remove the rope, turn the right hand handle in the
lowering direction. If necessary, pull the rope by hand at
the same time.
3.4.2. Safety wire rope
Lift the yellow operating lever (17) to open the jaws and
lock it into position. Feed in the safety rope (B) in the
other rope guide. Pull the rope through.
Put the wire rope under tension using a counterweight
of around 8 kg.
To remove the safety rope, hold the yellow operating
lever (17) in the open position and remove the rope by
hand.
3.5. Lifting
Put the right hand handle (4) in the low position.
Turn the left hand handle (20) in the lifting direction.
When it reaches the vertical position, it should lock.
Operate the two handles simultaneously. If released,
the left hand handle automatically unlocks. To restart
the operation, reposition the handle at the starting point.
3.6. Lowering
For lowering, only use the right hand handle (4).
Turn it in the direction opposite to that used for lifting.
The left hand handle (20) should be in the low position
(unlocked).
In an emergency, push the red lever (18) away from the
operator. The jaws will lock onto the safety wire rope.

4. SAFETY DEVICES

The scafor™ is fitted with the following safety features:
4.1. Emergency stop
To stop further lowering, push the red emergency lever
(18) away from the operator. The jaws will lock onto the
Ø
safety rope (B).
max.
2 x
4.2. No-load device
Ø
Should there be a no-load situation (e.g. catching the
cradle on a ledge during lowering, breaking of the lifting
rope, etc. . .) a set of jaws immediately locks onto the
safety rope (B) to take up the load.
4.3. Anti-tilt device
Should the two hoists be operated at different speeds,
lowering is automatically stopped if the platform
becomes tilted by more than 10 to 12 degrees. To
correct its position, operate the hoist which is behind.
To unlock the anti-tilt device, lift the platform slightly and
engage the yellow operating lever (17).
N.B.: This device only operates on platforms fitted with
fixed stirrups.
4.4. Centrifugal brake
The lifting wire rope (A) speed is constantly checked by
the centrifugal mechanism. Should the lowering speed
approach 10 m/mn, the jaws will automatically lock onto
the safety wire rope (B).
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GB