Soby SRL60 User manual

Feb. 2020Vers. 05
User manual
SRL60
SØBY chain conveyors are an
economical and reliable solution for
horizontal and inclined conveying of
large quantities of grain, as well as
the transport of seeds and ground
bulk products.

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Contents
General references...............................................................................................................2
Safety instructions.................................................................................................................5
Use of the machine...............................................................................................................7
Explanation of the Pictogram.................................................................................................8
Specifications .......................................................................................................................9
Technical data ....................................................................................................................10
Description of components .................................................................................................11
Mounting of SRL60 .............................................................................................................12
Tætning her........................................................................................................................29
Electrical equipment ...........................................................................................................30
Operating and commissioning.............................................................................................31
Maintenance.......................................................................................................................32
Cleaning .............................................................................................................................34
Troubleshooting .................................................................................................................35
Residual risk .......................................................................................................................36
Supplier instructions............................................................................................................37
Declaration of Conformity ...................................................................................................42

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General references
Please read the entire User Instructions before assembling and operating the
installation.
If the purchaser makes any technical modifications to the machine, any warranty
from SØBY will then cancelled. The declaration will lose its validity.
The guarantee is only granted if the following conditions are met:
-The unit may only be used as described in this manual. Replacement of parts or
changing the construction of the unit may cause the equipment to be re-certified.
-Installation, putting into service and operation by using this manual.
-Documentable compliance with maintenance intervals, cf. Instructions.
-Operation of the chain conveyor only by using motor protection or star Delta
connection with motor protection.
-Use the original spare parts of the manufacturer only.
-All joints must be sealed with silicone in order to avoid dust emissions.
-Emergency stop must be installed in accordance with current standard EN 60204-1.
-By normal operation at the machine, see pictogram devices and read user/assembly
instructions.
-When performing operations in areas where there is a risk of explosion, the safety of
persons and equipment is subject to compliance with relevant safety regulations.
Performing installation- and maintenance work in such areas implies a special
responsibility for the persons performing the work. This work requires that the
assembly- and maintenance personnel have thorough knowledge of laws, regulations
and standards within the area. This construction gives a brief overview of the most
important safety conditions in connection with the installation, maintenance and use of
the equipment. Please pay attention to the fact that it is the responsibility of the end
user to identify potentially explosive areas according to current regulations, with the
following requirements for zone classifications and, if applicable, reporting to the local
authorities.
-Repair, service and maintenance must be done carefully in accordance with the
instructions of SØBY and must be performed by personnel who possesses the
necessary qualifications in relation to the explosion safety of the equipment.
Inspection and maintenance in respect of the electrical equipment must be based on
the instructions in EN60079-17.

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-During the lifetime of the chain conveyor and in connection with use in respect of the
mechanical parts, special attention must be paid to the following:
-Lifetime (see table)
-Damages to parts and screens
-Corrosion
-Tightening of bolts and screws
-Control of belts, including after-tensioning
-Modifications or alterations of the equipment, which influence the explosion safety of
the equipment, are not allowed. Before using the equipment, check that the
equipment is undamaged, assembled and installed as directed by SØBY.
Attention is particularly paid to:
-National security rules.
-National requirements to Safety and Health at places of work.
-National rules of installation for the type of installation in question.
-Recognized standards.
-Safety information in this manual.
-Data and information on the permissible installation and operating conditions
on the equipment's rating plate.
The manufacturer reserves the right to make technical changes.

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The machine can be used for conveying of feed, which causes an internal ATEX-zone 21 or
zone 22. In case the machine is installed in zone 21 or 22, please select suitable gear and motor
etc. for this purpose.
The machine can be used for conveying of the following material, with data as shown below.
Materials beyond this must not be used in this machine:
•Grain, mixed dust
•Flour
•Minerals
•Soya bean meal
•Rape/beans
•Feed pellets and wooden pellets up to 8mm in diameter
If the medium being conveyed contains stone or metal parts, the explosion safety of the
equipment cannot be guaranteed.
Must comply with EN 60079-10-2:2015 concerning explosive atmosphere/dust atmosphere.
Particle
Size
[µm]
Ignition
temperature
Dust cloud
[°C]
Ignition
temperature
5mm layer
of dust
[°C]
LEL
[g/m3]
MIE
[mJ]
Kst
[bar m/s]
Reference
Limit values
12
400
280
30
50
131
-

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Safety instructions
The instructions and especially the safety information must be read carefully prior
to assembly, commissioning, operation and maintenance.
All plants and components must be installed in accordance with the applicable
accident prevention regulations.
The machine must be shielded correctly in relation to the current Machine
Directive, and as such make it impossible to get in touch with moving parts. The
shielding may only be removed by using tools. These must be fitted before the
machine is put into operation.
The motor must be properly protected with overload protection equipment, and
the chain conveyor must be properly fitted with a suitable potential equalization.
For any repair or maintenance, disconnect the power source from the drive
motor.
Intermediate outlet may start automatically. Beware of fingers and limbs. The
intermediate outlet must be connected to lockable main circuit breaker.
When the chain conveyor is running you should not be able to put your hand or
fingers into the drive device or elsewhere.
There must always be shielding over pit down to the inlet, and here there is a
requirement for an applicable mesh size of up to 120mm, with a safety distance
of minimum med 850mm. This must be observed in relation to DS/EN ISO 13857.
Shields such as guard for belt and shields for inlet for prevention or elimination of
risks must be maintained on a regular basis.
The machine must be installed in a way that provides good ergonomic
conditions for service of the machine.
The safety equipment that has been removed during repair, cleaning and
maintenance work must re-established before the plant is put back into
operation.
All screws, bolts and attachments must be properly tightened.
If the machine is stuck / is clogging, the transmission might be overheated.
The chain conveyor must only be put into operation, when it is assured that it is
not defective. The operator is obliged to only operating the installation when it is
in perfect condition.
SØBY is not liable for damages arising from abuse or technical alterations of the
installation and breach of the instructions given in this user guide.
If the chain conveyor is placed in areas classified as potentially explosive,
specially approved motor and gearbox must be used for the zone in question. If
you have any questions, please contact SØBY for further information. It must be
ensured that the ambient temperature in the area, where the equipment is
installed, remains within the permitted limit values of the equipment -20° ≤ TA ≤
40°. Therefore, when installing the unit, it is necessary to consider any external

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heat sources that may affect the ambient temperature in the area where the
equipment is installed.
During any work with the chain conveyor there must be adequate work lighting.
During any work with the machine, respiratory masks, safety shoes, hearing
protection and other required safety precautions that may be required by the
local workplace assessment should be used, where the chain conveyor is
installed.
When assembling machines, heavy lifting may occur. Persons setting up the
machine must read the assembly /user manual first. Suitable lifting equipment
must be used in connection with installation and assembly.
Gloves must be used while handling the machine as there is a risk of sharp
edges.
The equipment must not be exposed to larger dust loads (dust layers) than
permitted in EN60079-14.
Beware that if the chain conveyor is expected to run empty for more than 5
minutes, a dry-running sensor must be fitted to ensure that the machine stops.
Also, it must be ensured that the machine outlets are not clogged. As SRL60
chain conveyor as standard is not mounted with an overflow sensor, it will
depend on the motor protection if the chain conveyor is clogged.

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Use of the machine
The chain conveyor is designed for conveying of grain and almost all seeds and flour
products within agriculture.
(see material specifications in general references).
The chain conveyor may not be used for tasks beyond these.
The chain conveyor is driven by a gear motor. It moves the conveying material from
an inlet to an outlet.
The complete installation must be observed in accordance with the applicable
regulations in this manual and in accordance with the applicable Machine Directive
2006/42/EC.
The chain conveyor can have a speed of 0,57-1,11 m/sec.
Maximum length of 35 m.

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Explanation of the Pictogram
Prior to repair, maintenance and cleaning work, turn off the motor and unplug
the power cord.
Moving parts can be dangerous.
They are only to be touched when they are completely at ease.
All shielding must be mounted before you start the machine.
Grease injector

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Specifications
Conveying capacities (0,75 t/m³ dry and cleaned grain)
SRL60 Chain conveyor = 60 t/hour
Construction of module
The chain conveyor SRL is constructed in modules, so that the desired lengths can always be
obtained with a tolerance of 25 cm.
Outlet sections
If you want to use intermediate outlets, outlet sections can be placed between the
extensions.
Opening and closing of the outlets can take place on site either by manually operated outlets
or by outlets for remote control. Operation will then take place through a wire from an
accessible position. Can also be automatically/electrically operated.
Ascending conveying
The chain conveyor can be used for slightly ascending conveying of up to approx. 7°.
If larger ascending than usual is required, we recommend using a chain conveyor (10°-30°)
with extended flights and intermediate bottom.
For conveying with ascending more than 30°, we recommend using bucket elevator +
horizontal chain conveyor.
Reversible conveyors
In many cases it might be appropriate that the conveyor can convey in both directions, i.e.
that the inlet is placed in the middle of the conveyor and this then conveys to either side,
respectively. In the case of conveyors below 20 m, this can be carried out just by installing a
pole switch in the electrical connection, and by installing an outlet section before the tail
section. In these cases, please note that the chain must be kept tighter than usual as a slack
chain might cause damages to the conveyor.
In case of longer conveyors, please contact SØBY.
Pipework
All kinds of piping to inlet and from outlet can supplied for the chain conveyor.
SRL60 inlet is standard with Ø250 in- and outlet.
SRL60 (10°-30° ascend or with 30° bend) is standard with outlet Q24.
Piping requires a 45° fall for grain and the like to be able to slide. When working with seeds
and hard flowing products, the sliding angle is somewhat larger.

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Technical data
Technical data
Noise level: Operation with grain 76 dB(A)
Without grain 70 dB(A)
Motor capacity: Between 2,2 kW and 7,5 kW. See the data plat of the motor for further
information.
Gear: Varvel RT/RS
Synthetic gear oil ISO VG 320 ”long-life” oil

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Description of components
Drive-tension section with worm gear Drive-tension section with worm gear for 30°
ascend
Extension including chain
Extension with intermediate plate including
extended flights
Extension with side inlet including chain Extension with side inlet including chain with
extended flights

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Intermediate outlet manually operated
Intermediate outlet motor operated
Tail section
Extension as bend
Flow regulator
Chain for horizontal conveying
Chain for inclined conveying Inlet/outlet
Tip box Inlet box

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Mounting of SRL60
Mounting of the chain conveyor as described in this section is a guideline from SØBY.
If this is followed, you are ensured a safe and uniform assembly of the chain conveyor.
The machine can also be assembled in other ways.
Mounting of the chain conveyor may only be carried out by specially trained personnel.

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The SRL60 chain conveyor is supplied in separate parts. Before starting the mounting please
control that all parts are complete and supplied according to the order.
Calculate the assembly order of drive-tension section, extensions and outlet sections.
When the assembly order has been defined, dismount all the covers on extensions and
outlet sections, and remove the chain and the assembly components.
The chain conveyor must be supported for minimum every 6 meters.
If the chain conveyor must be mounted at the top of a building, the supports can optionally
be designed as hangers hanging down from the rafters, or the chain conveyor can be laid
directly on the beams of the roof structure.
The extensions and outlets are assembled in appropriate lengths and put in place and
assembled with the other pieces.
Standard extensions are bolted together with assembly plate at the side and at the bottom
(see fig. 1)
At the tail section and at extensions with side inlets, brackets are mounted instead of plates
(see figure 2).
The drive-tension section is mounted at the outlet end and the tail section at the opposite
end.
Figure 1
Figure 2

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When the sections have been assembled and put in place, the chain is put in and pulled
around the chain wheels at the ends; please note the assembly of chain compared to the
direction of rotation (see figure 3).
Return chain
Figure 3
Conveying direction
Conveying chain

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Mounting of return buckets
Here is described in which cases it is necessary to mount return buckets and when it is not.
When return buckets are to be mounted, one return bucket is usually mounted per 4 m
running chain.
Standard chain conveyor without return buckets.
Standard chain conveyor with reversed direction of conveying. Mounted with return buckets.
Please note that the chain direction is the same as standard.

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Chain conveyor with intermediate outlet, and with intermediate outlet under the drive-tension
section. Mounted with return buckets.
Please note that the chain is reversed compared to standard chain conveyor.
Chain conveyor reversible with intermediate outlet at both drive-tension sections.
Mounted at return buckets.
Please note that every 4m chain is reversed.

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The chain tensioning bolts are loosened to the maximum and the chain is tightened with
tackle or clamp and the chain is assembled with the supplied connectors.
Thereafter, the chain is adjusted with the tensioning bolts (figure 4 position1). Remember to
loosen the motor bracket
(figure 4 position2).
Figure 4
1
2

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If the chain conveyor must be placed outside, the electric motors must be protected against
moisture, for this purpose we can supply rain covers.
When the rain cover must be mounted this replaces the normal gear console (see figure 4),
as the rain cover itself is both cover as well as gear console (see figure 5,2).
The rain cover is easy to mount, and with the tilting (see figure 5, 3) it is possible to make
further service without removing the cover.
Figure 5, 1 Figure 5, 2
Fig. 5, 3