PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.
03EN
Revision 3
INSTRUCTIONS 18/06/2020
INDEX
1. GENERAL
1.1 NORMAL USE
1.2 GUARANTEE
1.3 TRANSPORT AND STORAGE
1.4 GENERAL FEATURES
1.5 DIMENSIONS
1.6 MARKING
2. ASSEMBLY
2.1 FIXED SYSTEM
2.2 OSCILLATING SYSTEM
2.3 DRIVING BAR
3. CONNECTION
4. ADJUSTMENT
4.1 SAFETY GEAR
4.2 DRIVING
5. TESTS
5.1 BEFORE THE TEST
5.2 TEST
5.3 AFTER THE TEST
5.4 BRAKING DISTANCE
6. MAINTENANCE AND USEFUL LIFE
6.1 AFTER ACTIVATING THE SAFETY GEAR
6.2 SAFETY GEAR AND GUIDE RAILS
6.3 USEFUL LIFE
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
Revision 3
INSTRUCTIONS 18/06/2020
1.- GENERAL
1.1 NORMAL USE
The SLC2500 progressive safety gear is a safety component as established by annex III
of the directive 2014/33/UE and it is certified according to the said directive. It must therefore
be used solely to this purpose. All other uses have not been analysed and are therefore not
foreseen.
1.2 GUARANTEE
LUEZAR-ECO,S.L. guarantees, for the period established by the current legislation, the
functioning of its product against any fault of the materials and assembly in its manufacturing.
This guarantee will not be valid in the following cases:
• Inappropriate use of the safety gear.
• Faulty installation of the safety gear and its accessories.
• Superficial impacts.
• Inappropriate maintenance.
And, in general, non-compliance with the instructions described in this handbook.
The sets of safety gears are supplied in accordance with the description of the installation
provided by the customer. Under no circumstances may safety gears with different serial
numbers be manipulated, combined, assembled or installed in installations with features
different from the ones displayed on the plate of characteristics. Any action on the safety
gears must be carried out by LUEZAR-ECO S.L.
LUEZAR-ECO S.L. reserves all rights to modify the content of this document without prior
notice, thus cancelling the validity of previous revisions.
1.3 TRANSPORT AND STORAGE
The safety gears will be transported from the factory to their assembly in an appropriate
packaging, so that they are protected from bumps, humidity, dirtiness and poor weather
conditions at all times.
At reception of the safety gears and just before assembling them, it must be checked that
the packaging has not been damaged and that the features of the product received coincide
with the order and with the characteristics of the installation.
Safety gears do not have a limited operational life time, but they will be returned to the
factory in order to be checked by LUEZAR-ECO,S.L., after agreement, if any superficial
damaged caused by bumps or any beginning of rusting is detected when the product is
unpackaged.
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
Revision 3
INSTRUCTIONS 18/06/2020
1.4 GENERAL FEATURES
The SLC2500 safety gears have been designed and certified to cover a large range of
loads, oiled and dry guide rails and various ranges of speeds. The features which have an
impact on the adjustment of the safety gears are:
• P+Q (Kg)
• Guide rail thickness.
• Minimal braking width of the guide rail
• Type of guide rail (drawn, machined)
• Lubrication status
The safety gears have S and HS models. These two differ from each other in rated speed,
maximum tripping speed as well as in rated loads. Each model, in turn, has two performance
ranges. The indications you can find in this manual apply to both models and their features
are as follows:
RANGE 1
SAFETY GEAR MAX. NOMINAL SPEED MAX. TRIPPING SPEED
MODEL (m/s) (m/s)
SLC 2500-S 1,0 1,5
SLC 2500-HS 1,6 2,1
Guide rail thickness 16 - 70 mm
SLC2500-S DOWNWARD DIRECTION
GUIDE RAIL MAXIMUM LOAD (Kg) MINIMUM LOAD (Kg)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 20 ≥ 24 ≥ 20
Machined Dry 4243 x 499 x
Machined Oiled 4221 x 482 x
SLC2500-HS DOWNWARD DIRECTION
GUIDE RAIL MAXIMUM LOAD (Kg) MINIMUM LOAD (Kg)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 24
Machined Dry 4295 837
Machined Oiled 4259 704
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
SLC2500-S UPWARD DIRECTION
GUIDE RAIL MAXIMUM FORCE (N) MINIMUM FORCE (N)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 20 ≥ 24 ≥ 20
Machined Dry 33232 x 4722 x
Machined Oiled 33257 x 4526 x
SLC2500-HS UPWARD DIRECTION
GUIDE RAIL MAXIMUM FORCE (N) MINIMUM FORCE (N)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 24
Machined Dry 33563 6518
Machined Oiled 34164 5838
RANGE 2
SAFETY GEAR MAX. NOMINAL SPEED MAX. TRIPPING SPEED
MODEL (m/s) (m/s)
SLC 2500-S 1,75 2,0
SLC 2500-HS 2,65 3,0
Guide rail thickness 5 - 70 mm
SLC2500-S DOWNWARD DIRECTION
GUIDE RAIL MAXIMUM LOAD (Kg) MINIMUM LOAD (Kg)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 20 ≥ 24 ≥ 20
Cold-drawn Dry 2739 2250 440 377
Cold-drawn Oiled 2716 2020 430 371
Machined Dry 3350 x 499 x
Machined Oiled 3335 x 482 x
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
Revision 3
INSTRUCTIONS 18/06/2020
SLC2500-HS DOWNWARD DIRECTION
GUIDE RAIL MAXIMUM LOAD (Kg) MINIMUM LOAD (Kg)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 24
Cold-drawn Dry 2704 523
Cold-drawn Oiled 2639 522
Machined Dry 2866 837
Machined Oiled 2812 704
SLC2500-S UPWARD DIRECTION
GUIDE RAIL MAXIMUM FORCE (N) MINIMUM FORCE (N)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 20 ≥ 24 ≥ 20
Cold-drawn Dry 26325 12943 4067 4329
Cold-drawn Oiled 25416 12610 3731 3802
Machined Dry 32360 x 4722 x
Machined Oiled 31279 x 4526 x
SLC2500-HS UPWARD DIRECTION
GUIDE RAIL MAXIMUM FORCE (N) MINIMUM FORCE (N)
SURFACE LUBRICATION Braking width (mm) Braking width (mm)
CONDITION ≥ 24 ≥ 24
Cold-drawn Dry 26356 5161
Cold-drawn Oiled 25785 5022
Machined Dry 31362 6518
Machined Oiled 31306 5838
According to section 5.3.4 of standard EN81-50, the declared mass may differ by ± 7.5%
from the mass allowed.
The functioning temperature is comprised between -30ºC & +50ºC.
The tolerance of the guide rails will be as established by standard ISO 7465.
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
Revision 3
INSTRUCTIONS 18/06/2020
1.5 DIMENSIONS
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
Revision 3
INSTRUCTIONS 18/06/2020
1.6 MARKING
In compliance with section 5.6.2.1.1.3 of standard EN81-20, the safety gear comes with
an identifying label with the following details:
SLC2500 (S / HS) Type of progressive safety gear (S=standard, HS=high speed)
Max rated speed Maximum tripping speed of the governor
F. Nr Manufacturing number
F. Date Manufacturing date
(P+Q) Lift P+Q
(P+Q) Min-Max Permitted minimum and maximum P+Q
Cold-drawn guide rail
Machined guide rail
Oiled guide rail ( );Dry guide rail ( )
It is very important to check that the details reflected on the identifying label are in
accordance with the characteristics of the installation.
2.- ASSEMBLY
The SLC2500 safety gear can be assembled fixed or oscillating. The most appropriate
system is the oscillating one, as it allows for a more accurate adjustment of the safety gear
position with regards to the guide rail and it allows the safety gear to adapt to it during
braking. The safety gear rear projections are always optional.
The chassis must be resistant enough to support the efforts produced during braking and
in the case of a fixed assembly, the chassis itself or the gliders must allow for some
deformation when the safety gear trips. .
The SLC2500 set is made of two symmetrical safety gears, each of them is assembled on
one side of the chassis and their positions cannot be exchanged. The UP mark must
ALWAYS be on the upper part. In this position, if the calliper is on the right-hand side, then
we call it a right-hand safety gear and if it is on the left-hand side, a left-hand safety gear.
LEFT HAND RIGHT HAND
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
2.1 FIXED SYSTEM
Taking into account section 1.5 DIMENSIONS, the drill holes to be made in the chassis or
in its finished (carved, painted,...) fixing plate will be as shown in the drawing below. If the
safety gear does not have any projections, then the two elongated holes will be omitted
Each safety gear will be fixed to the chassis by means of four M12 screws quality 8.8 DIN
933 and DIN 127 grower washers or similar in the threaded holes of the safety gear. In all
cases, the length (L*) of the screws must be such that the threaded length in the safety gear
is neither higher than 14mm nor lower than 12mm.
DIN 933 M12xL*
+ DIN 127 M12
SAFETY GEAR WITHOUT PROJECTIONS SAFETY GEAR WITH PROJECTIONS
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
Revision 3
INSTRUCTIONS 18/06/2020
2.2 OSCILLATING SYSTEM
Taking into account section 1.5 DIMENSIONS, the drill holes to be made in the chassis or
in its finished (carved, painted,...) fixing plate will be as shown in the drawing below. If the
safety gear does not have any projections, then the two elongated holes will be omitted.
Additionally, we must make the drill holes to assemble the oscillating system. Its
dimensions depend on the model of system and they must allow for a minimum movement of
5mm in the direction the calliper approaches the guide rail and 3mm in the opposite direction.
Each safety gear will be fixed to the chassis by means of four M12 screws quality 8.8 DIN
6921 and guiding ferrules in the threaded holes of the safety gear. The dimensions of the
ferrules depend on the thickness of the plate and they allow for the safety gear to move
laterally. In all cases, the length (L*) of the screws must be such that the threaded length in
the safety gear is neither higher than 14mm nor lower than 12mm.
DIN 6921 M12xL*
+ guiding ferrule
Oscillating system
GUIDING FERRULE
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
2.3 DRIVING BAR
Once the safety gear is fixed, we must assemble the driving bar, which must be a square
of 15x15mm at both ends. Loosen the set screws and insert the bar through the ferrules of
both linkages. Place the bar so that it surpasses at least 15mm from each side and tighten
the set screws to fix the bar.
Driving bar □15
Ferrule
Set screw
.3.- CONNECTION
In compliance with section 5.6.2.1.5 of standard EN81-20, fix an electrical safety switch to
the linkage of the safety gear or directly to the chassis, so that it can command the stop of
the machine if the safety gear trips.
Fix the safety switch to the linkage or chassis by means of 2 DIN 84 M5x35 screws and
DIN 6923 M5 nuts and then connect it to the series of safeties, in the position of normally
closed.
DIN 6923 M5
Safety switch
DIN 84 M5x35
The electrical safety switch is Pizzato FR615-S13 (1NC, 1NO) or similar, and its features
are as follows:
AC-15 6A/250Vac
DC-13 0,4A/250Vdc
IP67
To check its correct functioning, act manually on the lever of the linkage and see that the
lift cannot possibly work.
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
4.- ADJUSTEMENT
4.1 SAFETY GEAR
With the help of gauges, check the position of the safety gear and check the two
measures shown in the drawing below. If the measures are out of tolerance in any of the
directions, loosen the screws of the safety gear and, with the gauge placed as shown in the
image, adjust the safety gear, tighten the screws again and remove the gauge. It is very
important to check that the safety gear is lateral and frontally parallel to the guide rail.
4.2 DRIVE
Check that the connecting rods in both linkages lie on the lower screw and that the rollers
are located in the lower lodging. Otherwise, loosen the screws of the connecting rod, adjust
their position and then tighten them again.
Screw of connecting rod Adjustment Tripped
in descent
At rest
Tripped
in ascent
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
By manually acting on the linkage in both directions, check that the rollers reach their
extreme positions, that there are no interferences of the linkage with any element in the
installation and that the linkage recoverer can return the roller to its neutral position.
Otherwise or if the linkage is too rigid, adjust the recoverer by turning its adjustment nut,
taking into account that in the extreme positions of the roller the spring should not be totally
compressed.
5.- TESTS
The tests described in this document will be performed following the instructions of
standard EN 81-20 Section 6.3 "Inspections and tests before the implementation", 6.3.4
"Car lift safety gears" and 6.3.5. "Counterweight safety gears".
That is to say, to do the tests of the car lift safety gear, the car must be loaded with
125% of the nominal load and it must move at nominal speed. For the tests of the
counterweight safety gear, the car must be empty and it must move at nominal speed.
5.1 BEFORE THE TEST
Perform the following operations before the test:
• Check that the guide rails and the safety gears are clean and free from foreign bodies.
• Check that the guide rails do not have marks from previous brakings.
• Check that the linkage rotates and returns to its original position correctly.
• Travel the lift several times at reduced speed and check that there is no noise
produced by the friction of the safety gears with the guide rails.
Otherwise, clean and oil the guide rails if required for the installation, grind down the
braking marks until they are removed and adjust the linkage.
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
5.2 TEST
There will be nobody in the shaft, on or inside the car during the tests.
In order to unload the car more easily, the tests will be performed at the level of one of the
landing doors.
In addition, the following points must be taken into consideration:
• The brakes of the machine must not get activated during the braking of safety gear.
• No mechanical or electric elements must interfere by generating forces on the system.
Any interference in the braking of safety gear can corrupt the results and thus lead to
miscalculation of braking distances.
The test itself will be performed as follows:
5.2.1 CAR LIFT SAFETY GEAR
• Load the car lift uniformly with 125% of the nominal load.
• Bridge the relay that controls the brakes of the machine.
• Bridge any switch connected to safety circuits to prevent the machine from stopping
during braking, safety gear switch, overspeed governor switch and tensioner, etc.. The
machine stop must be executed manually immediately after the braking of safety gear.
• Activate the governor speed remotely when the car is at one of the lower floors, but
never at the lowest.
5.2.2 COUNTERWEIGHT SAFETY GEAR
• Completely unload the car.
• Bridge the relay that controls the brakes of the machine.
• Bridge any switch connected to safety circuits to prevent the machine from stopping
during braking, safety gear switch, overspeed governor switch and tensioner, etc.. The
machine stop must be executed manually immediately after the braking of safety gear.
• Remotely activate the governor speed or the system that simulates the breaking of the
suspension organs when the car is at one of the upper floors, but never at the highest.
5.3 AFTER THE TEST
Check that the inclination of the car is not higher than 5%. If the inclination is higher, then
the test will not be valid.
Perform the following operations after the test:
• If the car safety gear has been tested, unload the car and travel it to the floor
immediately above.
• If the counterweight safety gear has been tested, travel the car to the floor immediately
below.
• Check if the safety gear, the linkage or other components are damaged.
• Measure the braking mark and check that it is similar in both guide rails.
• Grind down and clean until the braking mark is erased.
• Return the manoeuvre-governor-linkage system to its original position and leave it
ready for normal functioning.
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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The existence of faults in the safety gears or a difference of over 20mm in the braking
marks will also make the test void.
5.4 BRAKING DISTANCE. BRAKING CURVES
In order to check that the safety gear brakes as required by section 6.3 of standard EN
81-20, take the lowest and highest values of both braking marks and check that both values
are between the maximum and minimum braking curves.
For speeds lower than or equal to 1.7m/s, choose the curve corresponding to the SLC
2500-S safety gear and for speeds higher than 1.7m/s, the curve corresponding to the SLC
2500-HS safety gear.
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PROGRESSIVE SAFETY GEAR SLC2500 MI.SLC2500.03EN
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INSTRUCTIONS 18/06/2020
6.- MAINTENANCE
To guarantee the correct functioning of the safety gears all along their useful life, we must
perform a functioning test of the safety gears annually. The test will be similar to the one
described in section 5, but the car lift will be empty and it will move at inspection speed.
In addition, we shall annually perform the following maintenance tasks:
6.1 AFTER TRIPPING THE SAFETY GEAR
The company in charge will make available at the installation the instructions to release
the safety gear after its engagement.
In order to guarantee a correct release of the safety gear, the personnel in charge of
maintenance will proceed as in section 5.3 "After the test", following the instructions
described above. These operations could be performed under any situation of load if it is not
possible to unload the car lift.
In all cases, the said personnel will release the safety gear.
6.2 SAFETY GEAR AND GUIDE RAILS
• Check that no foreign body is located between the safety gear and the guide rail or
in the linkage and its accessories.
• Perform a visual inspection of all the equipment in order to detect possible
superficial damage or the effects of corrosion.
• If the guide rails are oiled, lubricate them with oil type ISO VG 68 or similar.
• Look for any possible marks as a consequence of tripping. If any is found, grind
them down, so as to restore the braking area of the guide rail.
6.3 USEFUL LIFE
The useful life of the safety gear cannot be defined with regards to a specific period of
time; the safety gear can work provided the results of the maintenance tests above are
satisfactory.
Thanks to the periodical tests, it is not necessary to replace the braking elements unless
the braking distance is abnormally high. However, after real action of the safety gear in free
fall, it is recommended to check all the elements and, if any fault is detected, it is
recommended to replace the faulty part.
Otherwise, only LUEZAR-ECO,S.L can repair the said safety gear or supply a new one,
based on the manufacturing number (F.Nr.) displayed on the plate of characteristics.
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