Metra Electronics SGC User manual
1
OPERATING MANUAL
SCALPER GRAIN CLEANER
METRA SGC
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CONTENTS
Introduction ...................................................................................................................................... 3
General information about the device .......................................................................................... 3
1. Purpose and installation ................................................................................................................. 4
2. Main technical characteristics ........................................................................................................ 5
3. Conguration of SGC ....................................................................................................................... 5
4. Characteristic features .................................................................................................................... 5
5. Work of SGC ..................................................................................................................................... 6
6. Marking ............................................................................................................................................. 7
7. Safety technique .............................................................................................................................. 8
8. Installation of SGC ............................................................................................................................ 9
9. Switching on and setting up of SGC ............................................................................................. 10
10. Replacing the frame with a mesh ............................................................................................... 12
11.Maintenance ................................................................................................................................... 13
12.Transportation ............................................................................................................................... 14
13.Manufacturer’s warranty .............................................................................................................. 14
14.Certicate on admission ................................................................................................................ 16
Storage ............................................................................................................................................ 17
Repair .............................................................................................................................................. 17
This operating manual is a unied operating document and is issued to each Pre-Cleaning Unit (hereinafter
SGC).
This document is intended for studying the device, its safe operation, as well as for gaining experience
working with it.
The manual includes information about the conguration, the appliance of the device, its technical
characteristics, as well as safety instructions, information about the manufacturer and warranty
conditions.
The manufacturer reserves the right to make changes to the design in order to improve the device.
These changes may not be reected in the manual.
INTRODUCTION
Device name:
Manufacturing company:
Serial number:
Production date:
GENERAL INFORMATION ABOUT THE DEVICE
4 5
PURPOSE:
The SGC is designed for pre-cleaning of seed and commercial material: grain, leguminous,
vegetable, melon, fodder, as well as any bulk mixtures.
INTALLATION:
Installation of SGC is possible both as an additional unit for a series of ADS grain cleaners, and
as a separate unit as well.
It allows operation in closed areas, granaries, in the conditions of elevators, as well as in factories
where processing of agricultural products takes place.
1. PURPOSE AND INSTALLATION
Product name Capacity / hour Energy
consumption Weight
SGC-400 400 bushels in hour
10 tons in hour
0.5 HP
0.37 kW
220/380V, 50 Hz
133 lbs
60 kg
2. MAIN TECHNICAL CHARACTERISTICS
Table 1
SGC is supplied to the consumer in a standard conguration. On the request of the customer,
the conguration of the SGC can be changed, at the same time a corresponding contract is
concluded.
The standard conguration includes:
* SGC - 1 pc.
* Operating manual - 1 pc.
* Calibration frame with mesh - 1 pc.
3. CONFIGURATION OF SGC
SGC is an auxiliary pre-cleaning device for aerodynamic grain cleaners, ADS-200, ADS-400 with a
frame and a calibration mesh installed in it. The mesh is xed on a removable frame, the mesh
moves with the help of a gear motor and a crank mechanism. At the same time, performing
back and forward movement of the frame with the mesh. The speed of rotation is controlled by
a frequency converter.
4. CHARACTERISTIC FEATURES
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The operation of the unit consists in separating the grain from the rest according to the given
size during its passage through the calibration mesh. At rst, the grain is fed to the upper part
of the mesh, which moves with a small amplitude of oscillation, but with a high speed, during
the reciprocating movement of the mesh, the calibrated material is spilled. Large particles of
garbage that did not pass through the mesh fall into the receiving funnel for transfer to the
waste hopper. The calibrated material enters the receiving hopper of the ADS grain cleaner or
other equipment for further processing or transportation.
1. Downloading of primary material
2. Output of calibrated material
3. Output to the waste tray
5. WORK OF SGC
1.
2.
3.
A plate is attached to the outer surface of each SGC:
Name of the device: Pre-Cleaning Unit
Manufacturing company: Metra Group
Serial number:
Production date:
6. MARKING
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• The operator must have 1 group of admission for non-electrical personnel.
• Before starting work with the machine, the operator must comply with the following
safety requirements:
• Check the reliability of connection to the equipment of visible grounding (zero
protective) conductors, the presence and reliability of fastening of grounding (zero
protective) contacts, plugs and sockets, plug connectors;
• The total resistance of the grounding devices of all repeated groundings of the neutral
wire of the power supply line must be no more than 10 Ohms. (According to clause
1.7.103 of the Rules for the use of electrical devices).
• Connection plugs must be made in such a way that it is impossible to insert them
into sockets with a higher rated voltage than that indicated on the plugs. Before
connecting, it is necessary to make sure that the voltage supplied corresponds to
the socket of the connection. When connecting the equipment, do not allow cables,
power supply wires to be stretched and tangled, and do not allow them to be loaded
with things and cargo. Do not allow direct contact of wires and cables with hot, wet
and oil-treated surfaces and objects.
• When working with treated seeds, it is necessary to conduct a timely medical
examination and provide personnel with personal protective equipment.
• During the operation of the SGC without aspiration suction of waste, the operator
must work with goggles that protect him from dust and in a respirator
Installation (disassembly) of SGC is carried out only after
disconnecting the equipment from the electric current. Installation
(disassembly) of SGC is carried out only on a at, immovable surface
in compliance with all standards and requirements of the PTB for
installation work. Installation and adjustment of equipment is
performed only by certied specialists!
7. SAFETY TECHNIQUE ATTENTION!
IT IS FORBIDDEN!
• To operate SGC without learning this operation manual;
• To operate SGC without grounding;
• To operate SGC if the voltage in the network does not meet the requirements,
namely, for a voltage of 220V +- 10%, for a voltage of 380V +- 10%;
• To operate SGC if protective elements of moving parts are removed;
• To open nodes and blocks that are under voltage;
• To make changes to the program of the frequency converter;
• To operate SGC for the personal who doesn’t not have 1 group of admission for non-
electrical personnel;
• To operate SGC in places where atmospheric precipitation may fall on it (rain, snow,
fog, dew, and the like).
Installation is carried out using a lift or forklift or by personnel trained by the manufacturer.
Recommendations for installing SGC
During the installation of SGC in hangars, access from all sides should be at least 1200
mm for ease of maintenance. The technological gap above the SGC should be at least
1500 mm.
SGC installation procedure before operation:
• Install SGC at the place of further operation.
• During the installation of SGC on ADS grain cleaners, SGC is installed on top of the
receiving hopper, using loops depending on the model of the separator.
• During the installation of SGC as a separate unit, SGC is installed in a specially prepared
place or bunker.
8. INSTALLATION OF SGC
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If necessary, install a loading and discharge conveyor so as to ensure a continuous
process of separation.
1. Switching on of SGC
• Reset the «Emergency stop» button by turning it.
• Turn the «Network» knob to the «On» position, and when the power starts, the
«Network» indicator will light up.
• There is a speed control knob on the frequency converter, set it to the minimum
position.
• Turn on the frequency converter by pressing the RUN/STOP button.
• When the mesh starts moving, by selecting, choose the required speed of the mesh
movement.
• If necessary, reverse mode can be used by pressing the FWD/REV button on the
frequency converter.
• To switch o the mesh movement, press the RUN/STOP button.
• SGC is switched o by turning the ignition switch to the «OFF» position.
• Emergency shutdown of SGC occurs by pressing the «Emergency stop» button.
2. Setting up of SGC for working modes.
• Switch on SGC as above.
• Ensure uninterrupted supply of material. During the operation of the grain cleaner,
the operator must monitor the uniformity of the material to be separated.
• With the help of the speed controller, select the speed of the mesh in such a way
as to ensure the maximum separation of large and small fractions. It should be
remembered that increasing the speed of the mesh movement improves the selection
of large fractions, but at it is necessary to ensure that the pick-up and release of grain
material into the waste funnel does not occur.
• In this mode, with the correct conguration, the SGC can discard up to 60% of waste
from the source material, depending on the quality of the material being fed. The
operation of the SGC in this mode allows the cleaned material to be fed into the tray
for the removal of calibrated material. When installing SGC as an additional unit on
ADS separators, the calibrated material will be fed directly to the receiving hopper of
the separator for further cleaning or calibration. This combination of machines is the
most eective during the selection of seed material and allows you to increase the
productivity of the separator, while maintaining the high quality of calibration.
9. SWITCHING ON AND SETTING UP OF SGC • In order to obtain the highest quality pre-cleaning, it is necessary to make
sure that the eye of the calibration grid on the frame corresponds to the size
of the sampled material and, if necessary, replace the frame with the mesh.
It is necessary to remember:
An increase in the productivity of SGC is possible until the quality of
the preliminary cleaning of the material deteriorates, or until the
release of the material together with the garbage begins. For dierent
cultures, the threshold of deterioration of pre-cleaning is dierent, and
therefore the operator determines it himself
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Replacing the frame with a mesh is as follows:
• Disconnect SGC from the electricity network;
• Carry out cleaning of SGC;
• Disassemble SGC from the grain cleaner;
• Put SGC on the side where the electric motor is located;
• Unscrew the fastening from below that connects the frame with the mesh with the
crank mechanism (Picture 1);
• Disconnect the carabiner connections located on the edges of the frame with the
mesh (Picture 2);
• Unscrew the fasteners connecting the frame with the mesh to the rubber damper
cloth (Picture 3);
• Dismantle the frame with the calibration mesh by pulling it out from under the rubber
sheet;
• Install a mesh with a frame of the required caliber;
• Check the correct installation of the frame with the mesh and the reliability of fastening
the mechanisms;
• Switch on SGC without feeding grain. Make sure that the movement of the frame with
the mesh occurs smoothly without obstacles.
10. REPLACING THE FRAME WITH A MESH
SGC CLEANING:
During operation, it is necessary to clean the SGC, monitor the condition of the calibration
mesh, preventing its excessive sagging, check and timely replace lubricating materials,
monitor the condition of the frame with the mesh, crank mechanism and bearings.
ATTENTION! All cleaning works must be performed only after SGC is switched
o from the electricity network!
SGC cleaning should be carried out regularly, depending on its clogging, but not less
often than once every three working days.
• Disconnect the SGC from the electricity network.
• Remove dust and dirt from the body of the unit.
• Remove all remaining material from the mesh.
• Make sure that the movement of the frame with the mesh is smooth and without
obstacles.
• Before sending the SGC for storage or preservation, it is necessary to clean the SGC,
check the reliability of the fastening of the moving parts and mechanisms of the SGC,
and, if necessary, tighten the fasteners.
• After SGC storage or preservation, it is necessary to remove dust and mud deposits
with a soft cloth, check the smoothness of the calibration frame with a mesh, and, if
necessary, perform maintenance on the electric motor.
11. MAINTENANCE
Picture 3Picture 2Picture 1
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SGC is transported by road or rail transport in accordance with the rules of cargo
transportation.
Placement and securing of cargo takes place in accordance with the current technical
conditions for loading and securing cargo.
Loading and unloading of SGC could be done in the following ways:
By forklift or with the help of lifts or trained personnel.
During the transportation of SGC in covered vehicles, transportation is allowed without
packaging or with partial packaging that protects against mechanical damage.
12. TRANSPORTATION
Product name:
Manufacturing company:
Serial number:
Date of sale:
Signature:
13. MANUFACTURER’S WARRANTY
The manufacturer guarantees the compliance of the machines with the stated
requirements, subject to compliance with the transportation rules, storage, installation
and operation specied in this manual.
The warranty period of the machine is 12 months from the date of sale.
Warranty conditions:
Warranty repair refers to the replacement or repair of parts with a manufacturing
defect that manifested itself in work, which led to a malfunction. The decision to accept
a defective product for repair is made by a service employee of the manufacturer’s plant
after getting acquainted with it during the maintenance of this product.
The buyer has the right to a free repair during the entire warranty period in the event of
a malfunction due to the manufacturer’s shortcomings.
1. Warranty repair of the equipment takes place after the customer provides a fully
lled in warranty card.
2. Equipment subject to warranty repair must be provided by the customer to the
service department. Departure and repair of the equipment at its location by the
repair team is possible, but this must be agreed in additional written documents. The
cost of travel and accommodation of repair service specialists is paid for by the client.
3. Warranty obligations do not extend to materials and parts that wear out during
operation, namely: wheels of carts, tires, gaskets for sealing, protective covers, mesh,
and the like.
Warranty obligations do not extend to the following cases:
1. The serial number of the equipment submitted for warranty service does not match
the serial number specied in the warranty card and/or other written documents.
2. Unauthorized penetration into machine nodes.
3. Changes in the software setting of the frequency converter.
4. Improper storage and deconservation of the machine.
5. Present or hidden mechanical damage to the equipment, which occurs due to
violations of the rules of transportation, storage or operation.
6. A violation of the «Rules and conditions of operation» concerning this type of
equipment was detected during the repair process.
7. The presence of foreign objects in the middle of the equipment body, regardless of
their nature, if the possibility of this is not recorded in the technical documentation
or passport for this machine.
8. Connecting the equipment to the electrical network with a higher nominal electrical
voltage than the one declared by the manufacturer.
9. Failure of the equipment due to unstable parameters of the voltage in the electricity
network.
10. Any unauthorized design changes and repair work.
11. Failure of the equipment due to force majeure factors and/or the inuence of
third parties.
12. Installation, adjustment, training carried out by non-certied specialists.
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The manufacturing company is not liable to the client for direct or indirect damages,
lost prot or other damage suered by the client due to the failure of the purchased
equipment.
The manufacturing company is not responsible for the correct and safe operation of the
machine, if the rules of operation and storage of the machine have been violated.
For all issues of warranty and post-warranty service, please contact:
SGC
№_________________________________ « » 2023
Manufacturedinaccordancewiththemandatoryrequirementsofthetechnicaldocumentation,
and recognized as suitable for operation.
(Signature) (Stamp)
Date:
14. CERTIFICATE ON ADMISSION
SGC should be stored in a dry, ventilated room. It is impossible to allow atmospheric precipitation and foreign
objects to enter.
STORAGE
Date Conditions of
storage
Type of
storage Note
Accepted for
storage
Remove
from storage
REPAIR
Date
Operating
time from the
work start /
hours
Operating time
after the last
repair / hours
Reason for
repair
Information
about repair
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