Tractel Group scafor 408C Series Manual

hand operated machine for suspended access
scafor
®
®®
séries 406C & 408C
015207303-10/96
Operating and
maintenance
instructions

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SUMMARY
1. INTRODUCTION 3
2. TECHNICAL SPECIFICATIONS 3
3. OPERATING INSTRUCTIONS
3.1. General remarks 4
3.2. Regular inspection 4
3.3. Anchoring 4
3.4. Feeding in the wire rope 4
3.5. Lifting 5
3.6. Lowering 5
4. SAFETY DEVICES
4.1. Emergency stop 6
4.2. No-load device 6
4.3. Anti-tilt device 6
4.4. Centrifugal brake 6
5. SCAFOR WIRE ROPE 7
6. MAINTENANCE 7
This operating and maintenance manual applies to SCAFOR hoists from the
following serial numbers:
406C series: N°60059B
408C series: N°80038C
For machines prior to these numbers, please consult the manufacturer,
particularly regarding spare parts.

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1. INTRODUCTION
The SCAFOR is a lightweight manual hoist which has been especially designed for light suspended
platforms fitted with two hoists or for bosun's chairs or one-man cradles fitted with a single hoist.
The wire ropes (lifting and safety) are not stored within the unit; therefore the working height is only
limited by the rope's length.
SCAFOR is in standard version with centrifugal brake (models 406C and 408C) for mounting on any
stirrup (fixed or articulated) as well as for bosun's chairs or one-man cradles.
The two versions have different integrated safety devices (see chap. 4).
TheSCAFORismanufacturedaccordingthecurrentsafetyregulations(inFrance:art.13ofthedecree
dated 8.1.1965).
2. TECHNICAL SPECIFICATIONS
Fig. 1
*For articulated or fixed stirrups, or bosun's chairs and one-man cradles.
Model 406C* 408C*
Lifting capacity kg 400 400
Effort on each handle for load of 250 kg kg 7 7
Weight of unit without rope kg 11 11
Rope travel for one complete cycle cm 7.5 7.5
Diameter of lifting rope / safty rope mm 6.5 8.4
Breaking strain of rope kg 3000 4800
No-load safety system yes yes
Centrifugal brake system yes yes
345235
83 93 100
3040 4
11
32
25
347
137
Ø 520
570
Ø 30
57 83
140
85
4

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3. OPERATING INSTRUCTIONS
3.1. General remarks
Anchoring, operating and maintenance of the SCAFOR must be carried out with due regard for the
current safety regulations.
Before using the hoist, check that it operates correctly.
Make sure that the lifting and safety wire ropes are long enough for the application.
3.2. Regular inspection
Safety devices must be examined daily:
a) anti-tilt device (on fixed stirrups, ALTA 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) centrifugalbrakefeedtheliftingwirerope(A)intotheunituntilitstopsandthenquicklypullitback.
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. 3. 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:
6.5 mm for model 406C
8.4 mm for model 408C.
Make sure that the diameter of the rope corresponds to that indicated on the hoist's label. Lightly
lubricatetheropeswithanoil-soakedrag.Thewireropesshouldalwaysbeingoodconditionwiththeir
tips rounded as in fig. 2.
Fig. 2
max.
2 x
Ø
Ø

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A
20
AB
418
17
B 65/66
4. Right hand handle
20. Left hand handle
17. Yellow operating lever:
for opening jaws on safety rope
18. Red emergency lever:
for closing jaws on safety rope
65/66.Anchor pins:
(2 bolts HM 10x50-22 and 2 lock nuts)
A. Lifting wire rope
B. Safety wire rope
Fig. 3
3.4.1. Lifting wire rope
Throughthetopofthecasing(Fig.3),insertthetipoftheliftingropeintotheropeguidewhichisfurthest
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.
Turnthelefthandhandle(20)intheliftingdirection.Whenitreachestheverticalposition,itshouldlock.
Operatethetwohandlessimultaneously. Ifreleased,thelefthandhandleautomaticallyunlocks.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.

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4. SAFETY DEVICES
The SCAFOR is fitted with the following safety features:
4.1. Emergency stop
Tostopfurtherlowering,pushtheredemergencylever(18)awayfromtheoperator.Thejawswilllock
onto the safety rope (B).
4.2. No-load device
Should there be a no-load situation (e.g. catching the cradle on a ledge during lowering, breaking of
theliftingrope(A), etc. . .) a set of jaws immediately locks onto the safety rope (B) to take up the load.
4.3. Anti-tilt device
Shouldthetwohoistsbeoperatedatdifferentspeeds,loweringisautomaticallystoppediftheplatform
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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5. SCAFOR WIRE ROPE
Use only the SCAFOR special wire rope.
The rope has to be in perfect condition for the
hoist to operate correctly. The following recom-
mendations, if followed, will ensure its protection
for the longest life possible:
a) The wire rope should be reeled and unreeled
in a straight line to prevent loops and kinks
(fig. 4). Never try to feed kinked or otherwise
deformed rope into the unit.
The damaged portion will almost invariably
become trapped inside the unit.
b) Beforefeedingtheropeintotheunitremoveall
dirt. Use an oil-soaked rag to clean the rope.
c) The rope should never rub over sharp edges.
d) Never use the rope to sling a load. Use a
separate sling or a chain
e) The rope exit of the hoist should never be
obstructed.
f) Regularly inspect the rope. Replace the wire
rope should any of the following defects be
noticed:
- broken wires or strands;
- corrosion;
- reductionofdiameterby10%compared to
the nominal rope diameter (fig. 5);
- exterior damage or deformation as in fig. 6.
6.1 birdcaged wire rope
6.2 wire rope torn over sharp edges
6.3 crushed wire rope
6.4 loop formation on wire rope
6.5 kinked wire rope or, any other defect
6. MAINTENANCE
The SCAFOR does not require any special main-
tenance.Accordingtosafetyregulations,itshould
becheckedbyaqualifiedpersonatleastoncea
year. Should the SCAFOR require overhaul and
repair,itshouldonly be carried outbyaqualified
person. After repair, the SCAFOR should be
retested and certified.
Fig. 6.1
Fig. 6.2
Fig. 6.3
Fig. 6.4
Fig. 6.5
Fig. 5
Ø
Fig. 4