t20-t30 ing

GRAVITY SELECTOR SGS/R T20 - SGS/R T30SGS T20 - SGS T30

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SANGATI BERGA S.p.A.Corso Stati Uniti, 735127 Padua - ITALY

Address of manufacturer

GRAVITY SELECTORWITH AND WITHOUT RECYCLING SYSTEM

Description of the machine

Brand name : SANGATI BERGAType : SGS/R T20 - SGS/R T30 - SGS T20 - SGS T30Year of manufacture :

HANDBOOK OFINSTRUCTION FOR USE

Directive 89/392/CEE and subsequentamendments and supplements

Place of issue : PADUA - ITALY

Date of issue :

SANGATI BERGA S.p.A.


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SANGATI BERGA S.p.A.

Corso Stati Uniti, 7

35127 - Padova - ITALY

Tel 049-8700799 - Fax 049-761849

GRAVITY SELECTOR WITH AND WITHOUT RECYCLING SYSTEM

Type: SGS/R T20 - SGS/R T30 - SGS T20 - SGS T20

Serial no.: ..................

Year of manufacture: .......................

The machine subject of this declaration must not be used before the machine and/or system in which

it will be incorporated or assembled have been declared to be in compliance with the provisions of the

directive.

DECLARATION OF CONFORMITY

We, signatories of this declaration, hereby declare under our sole responsibility that the machine

in question complies with the provisions of the EEC directive 89/392.

Padua, SANGATI BERGA S.p.A.


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IMPORTANT INFORMATIONFOR OWNERS OF SANGATI MACHINES AND EQUIPMENT

1) DOCUMENTATIONThis documentation comprises operating and maintenance instructions and spare parts list and isdesigned for your factoryís technical personnel responsible for operation and control of the machine.For any type of information or clarification, you are advised to contact us and talk to our technicaldepartment.This documentation refers to the machine both with and without recycle unit. The machine with recycleunit comes complete with:- fan with regulation valves (2, fig. 4)- recycle unit (3, fig. 4)- duct between recycle unit and vibrating box (4, fig. 4)

2) RECEIPTEach machine is thoroughly checked before dispatch. Upon receipt, visually check the machine and ifany damage has occurred during transport, take all necessary steps to cover the damage in accordancewith the supply contract. Expenses for damages will be sustained by the party that has undertaken therisk.

3) STORAGEIf the machines are left outdoors, adequate covering must be provided and appropriate precautions takento protect them from the rain, humidity, corrosion and dust.We advise you to carry out periodical checks in order to prevent long-term damage.

4) INSTALLATIONInstallation and assembly of the machines must be carried out by qualified personnel, carefullyfollowing the instructions in the manual.

5) STARTING UPStart-up must be performed by specialist personnel only.The personnel must follow all the instructions contained in the operating manual.Before starting up, all the lubrication instructions must be followed.

6) ACCIDENT PREVENTIONAll the SANGATI BERGA machines are built in compliance with international safety standards. It isthe responsibility of the customer, before the machine is put into production, to inform the manufacturerof the local safety requirements.If this involves any additional expenses, these will be sustained by the customer.The documentation delivered must be read carefully.


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7) MAINTENANCE AND CLEANINGMaintenance must be performed by specialist personnel who have previously studied the documentationdelivered.Cleaning must be carried out in compliance with the regulations established by the law and theinstructions contained in the documentation delivered.

8) GUARANTEEGuarantees are provided only in relation to the contractual clauses. Spare parts must be originalSANGATI BERGA . Under no circumstances may damages due to incorrect use, failure to follow theinstructions or tampering by non-instructed personnel be charged to the manufacturer.

9) INTELLECTUAL PROPERTYWe reserve all rights connected with this document and its subject-matter. The consignee recognizesthese rights and, unless previous written authorization has been given by us, he will not make thisdocument available to third parties either wholly or partially and will not use it for purposes other thanthose provided for by said documentation.


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GENERAL INDEX

CHAPTER 1SAFETY Pag. 71.1 - Electrical connection Pag. 71.2 - Before starting up Pag. 71.3 - During operation Pag. 71.4 - Maintenance operations Pag. 71.5 - Electrical control Pag. 7

CHAPTER 2OPERATION Pag. 8

CHAPTER 2AMACHINE DESCRIPTION Pag. 10

CHAPTER 3MACHINE TYPES Pag. 14

CHAPTER 4DELIVERY Pag. 15

CHAPTER 5USES Pag. 16

CHAPTER 6TRANSPORT Pag. 17

CHAPTER 7ASSEMBLY Pag. 197.1 - Connections Pag. 257.2 - Electrical connection Pag. 26

CHAPTER 8SETTING THE MACHINE Pag. 278.1 - Vibration amplitude adjustment Pag. 298.2 - Stroke reading Pag. 308.3 - Working angle Pag. 308.4 - Screen inclination Pag. 308.5 - Suction adjustment Pag. 318.6 - Secondary suction adjustment Pag. 32


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CHAPTER 9STARTING UP Pag. 349.1 - Checks before starting up Pag. 349.2 - Starting up Pag. 349.3 - Operating checks Pag. 34

CHAPTER 10MAINTENANCE Pag. 36

CHAPTER 11ACCIDENT PREVENTION Pag. 37

CHAPTER 12CONTROL Pag. 45

CHAPTER 13SIEVE SUPPORT Pag. 46

CHAPTER 14SCREEN FRAME Pag. 47

CHAPTER 15SCREENS TIGHTENING DEVICE Pag. 49

CHAPTER 16INLET Pag. 5016.1 - Inlet box Pag. 5016.2 - Control device Pag. 50

CHAPTER 17DISTRIBUTION GRILLE Pag. 51

CHAPTER 18CENTRIFUGAL FAN Pag. 52

CHAPTER 19RECYCLE UNIT Pag. 53

CHAPTER 20SPARE PARTS Pag. 54

CHAPTER 21ENCLOSURES Pag. 67


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CHAPTER 1SAFETY

1.1 ELECTRICAL CONNECTIONFollow the safety regulations in force in the country where the machine is being used.Connect the motors in accordance with the regulations in force in the country of use.

1.2 BEFORE STARTING UPCheck that all the electrical connections have been made according to the wiring diagram.Carry out the electrical connection following the wiring diagram on the terminal board cover.

1.3 DURING OPERATIONStart the machine only with the covers fitted and safety devices enabled.

1.4 MAINTENANCE OPERATIONSDisconnect and turn off the master switch during repair and maintenance operations.

1.5 ELECTRICAL CONTROLInstallation and maintenance of the electrical control must only be carried out by qualified purposelytrained personnel.


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CHAPTER 2OPERATION AND WORKING PRINCIPLE (TABLE A)

The Gravity Selector has two functions: selection and stoning. The Gravity Selector with air recycle isprovided with a special system for re-using the suction air thus permitting installation in any systemwithout requiring connection to the general suction line.The Gravity Selector is provided with 2 pull-out screens one on top of each other enclosed in a vacuumchamber.Perfect and uniform distribution of the product at the inlet (A) over the whole width of the upper screen(F) is ensured by a special device that does not require any adjustment (G).The upper screen consists of 3 different selection areas (1-2-3) which can be identified by the differentsize of the holes in the sifting plate.The vibration produced by the motor vibrators and the suction air passing through the screens stratifiesthe product by gravity so that the heaviest grain and stones remain on the screen, while the lighter grainìfloatsî on the surface so that the air flow performs the first separation removing dust, straw and glume.These light grains are conveyed to section (H), cleansed and then discharged via a valve (E).The purified air then returns to the area below the screens thus completing the closed air cycle (I).After the first prestratification area (1) the product arrives at the selection areas (2) and (3) of the upperscreen where the stones and heavy grains begin to drop into the lower screen (4), facilitating subsequentseparation of the stones and particles of soil which are discharged at the outlet (B).The heavy grains in the lower screen are conveyed to outlet C whereas the lighter grains are dischargedfrom outlet D of the upper screen.The quantity of these lighter grains can be varied from 2-3% to 20-25% by altering the mesh dimensionsof the screens (2) and (3).The main advantages of the Gravity Selector with air recycle are the following:- it does not require connection to general suction systems thus permitting considerable savings interms of filtering surface and space occupied in the system;- it reduces energy consumption and maintenance costs;- it reduces installation costs;- it combines different functions in one single machine, i.e. stoning, suction and concentration ofimpurities;- its versatility makes it particularly suitable for gravimetric classification and stoning of a wide rangeof cereals in grain form and other seeds.


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TABLE A

H

E

D C I

B

3

4

F

G

A

2 1


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CHAPTER 2A

MACHINE DESCRIPTION

1) PRODUCT INLET (FIG. 1)Designed for hose fitting and connected to the braking box by means of rubber hose and clips.

2) BRAKING BOX (FIG. 1)Provided with flap with adjustable spring return for uniform distribution of the product.It is connected to the suction hood and vibrates with it.

3) SUCTION INTAKE (FIG. 1)Provided with butterfly valve to regulate the air flow. It is connected to the suction hood by means ofa flexible pipe.

4) SUCTION HOOD (FIG. 1)It conveys the air flow to the suction intake.It is provided with large transparent walls for control of the work surfaces.

5) VIBRATING BOX (FIG. 1)It is vibrated by the motor vibrators and contains the screen alignment and positioning guides.

6) UPPER SCREEN (FIG. 2)It consists of three covers with different mesh sizes.

7) LOWER SCREEN (FIG. 2)It consists of one single type of fabric with slit for discharge of the stones.In the lower part it is provided with a perforated plate with screen cleaning balls.

8) MOTOR VIBRATOR (FIG. 2)2 identical motor vibrators rotating in opposite directions.The centrifugal forces of the rotating weights, moment by moment, are provided with equal and contrarycomponents on the rotation axes plane and therefore only the components perpendicular to this planehave a combined effect. This results in a centrifugal force with constant direction causing the wholestructure to move with a reciprocating motion in the same direction.

9) VIBRATING BOX SUSPENSION (FIG. 2)At the front by means of two adjustable rubber springs and at the back by means of fixed rubber springs,oversized to support the greater weight of the structure.10) BASE (Fig. 2)It serves as a base for the machine and is provided with supporting trestle for the braking box and fan.

11) STONE DISCHARGE HOPPER (FIG. 2)

12) LIGHT MATERIAL DISCHARGE HOPPERS (FIG. 2)


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FIG. 1


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FIG. 2


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13) HEAVY MATERIAL DISCHARGE HOPPERS (FIG. 2)

14) DEFLECTOR ON STONE OUTLET SIDE (FIG. 2)

15) SUCTION LEVER (FIG. 1)

16) PRODUCT DISTRIBUTION FLAP (FIG. 2)

17) FANS CASING (FIG. 1)

18) CLEANSING CHAMBER CLEANING DOOR (FIG. 1)

19) UPPER DUCT CLEANING DOOR (FIG. 1)

20) DUST COLLECTING HOPPER (FIG. 1)

21) DUST EVACUATION DISTRIBUTOR VALVE (FIG. 1)

22) SUCTION CONNECTION HOSE (FIG. 1)

23) INLET CONNECTION HOSE (FIG. 1)

24) MOTOR (FIG. 1)

25) SECONDARY SUCTION TUBE WITH REGULATION VALVE (FIG. 1)

26) COLLECTING HOPPER (FIG. 1)

27) CLEANSING CYCLONES (FIG. 1)

28) CLEAN AIR RETURN HOPPER (FIG. 1)

29) CLEANING DOOR (FIG. 1)

30) RECYCLE UNIT LIFTING HOOKS (FIG. 1)

31) HANDLES WITH SCREEN LOCKING BRACKETS (FIG. 2)

32) DISTRIBUTOR VALVE GEARMOTOR (FIG. 1)

33) CONNECTION FOR DUST EVACUATION (FIG. 1)

34) SCREENS INCLINATION ADJUSTMENT LEVER (FIG. 1)


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CHAPTER 3

MACHINE TYPES

The basic machine is designed for processing wheat. The flow rates in the table therefore apply to cleanwheat with uniform feed and maximum humidity 15%.

Special versions can be supplied for seeds, coffee, pulses, cereals and maize.

FIG. 3

ModelFan

powerKW

Flow rateT.p.H.

Recyclesuctionm3/m

Weightkg

Volumem3


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CHAPTER 4

DELIVERY

The machine is normally delivered dismantled into the following parts:

1) Vibrating box with base2) Fan with regulation valves3) Recycle unit4) Duct between recycle unit and vibrating box5) Upright6) Outlet hopper

FIG. 4


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CHAPTER 5

USES

A) Normal version for cleaning wheatThe machine is normally supplied with outlets for the product following:1) Heavy grains2) Light grains3) Stones4) Dusty impurities

B) Special versions for:seedscoffeeclassification according to shape, size and specific gravity

FIG. 5

4

2

1

3


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CHAPTER 6

TRANSPORT

For transport of the machine, the screen unit is fixed to the base by means of four wooden spacers (Fig.6) in place of the vibration dampers. These spacers must be removed and replaced with the vibrationdampers before the machine is started up. Do not under any circumstances transport or lift the machinewithout these spacers.

FIG. 6


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6.1 LIFTING THE MACHINE (FIG. 7)

The machine is delivered split into different parts.The heaviest parts which require a hoist for lifting are:1) Vibrating box2) Fan3) Recycle unitThese units are provided with lifting hooks.

angle≤ 60∞

FIG. 7

1) KG. 710

angle≤ 60∞

2) KG. 269

angle≤ 60∞

3) KG. 940


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10

72

1

5

4

6

3

7

CHAPTER 7

ASSEMBLY (FIG. 8)

1. After positioning the sieve with the base in the required position, remove the wooden transportspacers (Fig. 6) and fit the 4 rubber springs (Fig. 8).

2. This operation must be performed by slightly raising the casing (10) using a hoist.

3. Fit the bush (1) and washer (2) in the rubber spring (3), tighten with screw (4) and self-locking nut(6), bracket (5) and rubber spring. This operation must be carried out on all 4 supporting points.Lower the casing with the rubber springs (3). Fit it onto the centering pin (7). Ensure that the 4 supportsare perfectly aligned and that the axes are respected.

4. Position the machine horizontally, checking with a spirit level.

FIG. 8 REAR SUPPORTRUBBER SPRINGS

FRONT SUPPORTRUBBER SPRINGS

DISC

��


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H

AB

G

E

IDLGFC

FIG. 9


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5. At this point, the other parts of the machine can be assembled (Fig. 9):- Tighten the upright (D) with 4 M10 screws per side.- Position the recycle unit (H) tightening the hopper on fitting (C) using M10 screws.- Lift the fan using a hoist, rest it on the upright and screw onto flange (B) recycle side and bracket(A) upright side (Fig. 10).- Fit the rubber hose (L), locking it in the upper and lower ring (E) by means of hose clips.- Position the product discharge hoppers and screw them to the air duct.

FIG. 10

AFTER RESTING THE FAN ON THE FRAMEWORKAFTER RESTING THE FAN ON THE FRAMEWORKAFTER RESTING THE FAN ON THE FRAMEWORKAFTER RESTING THE FAN ON THE FRAMEWORKAFTER RESTING THE FAN ON THE FRAMEWORK DRILL AND LOCK WITH M 10 SCREWS. DRILL AND LOCK WITH M 10 SCREWS. DRILL AND LOCK WITH M 10 SCREWS. DRILL AND LOCK WITH M 10 SCREWS. DRILL AND LOCK WITH M 10 SCREWS.


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When positioning the machine, the alternate loads caused by the motor vibrators must be taken intoaccount.The machine must be positioned directly on the beams - if this is not possible, reinforcements must beprovided on the floor - Fig. 11.

If the floor is wooden, the machine must never rest directly on it - it must always be supported by solidbeams.

For loads on the building see Fig. 12.

THE MACHINE MUST BE INSTALLED ON A SOLID SURFACE - ELASTICWOODEN OR METAL SURFACES MUST BE REINFORCED WITH BEAMSAND THE MACHINE THEN FIXED ONTO THE BEAMS.

FIG. 11


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Both the vertical force (FV) and horizontal force (FO) exert a pulsating action on each supporting pointwith a rotation frequency of 1000 n/min at 50 Hz and 1200 n/min at 60 Hz.

TIPO MACHINE WEIGHT FO FV

. ± 950 N 2420 NSGS/R T20 970 kg

± 95 kg. 242 kg.

± 1650 N 4250 NSGS/R T30 1700 kg.

± 165 kg. 425 kg.

1 N (Newton) = kg. m/Sec2 = 0,1 kg.

FIG. 12

123456789012345678901234567890121234567890123456789012345678901212123456789012345678901234567890121234567890123456789012345678901212123456789012345678901234567890121234567890123456789012345678901212123456789012345678901234567890121234567890123456789012345678901212123456789012345678901234567890121234567890123456789012345678901212123456789012345678901234567890121234567890123456789012345678901212

FO

FV


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FIG. 14

FIG. 13

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7.1 CONNECTIONSA) product inletB) suction intake control valve (provided with the machine)C) heavy grain collecting hopper 1 - 1aD) light grain collecting hopper 2 - 2aE) stones outlet with containerF) dust outlet tubeG) stones collecting hopperH) product interception sensor

N.B. NONE OF THESE ACCESSORIES ARE INCLUDED IN DELIVERY OF THE MACHINE

FIG. 15

GGGGG

GGGGG

��

��


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7.2 ELECTRICAL CONNECTION

Electrical control specifications

MOTORVIBRATORS FAN DISTRIBUTORMAX POWER MOTOR VALVE MOTOR

TYPE KW KW KW

HZ 50 HZ 60 HZ 50 HZ 60 HZ 50 HZ 60

SGS/R T20 2 x 0,680 2 x 0,760 7,5 7,5 0,37 0,37

SGS/R T30 2 x 0,680 2 x 0,760 11 11 0,37 0,37

- Unless regulations in the country where the machine is being used provide otherwise, the motors areprotected to: IEC IP55 - motors

IEC IP65 - gearmotorsOn request, motors with higher protection can be supplied in compliance with the EEC regulations -EExd ed.UL certification.

- Unless regulations in the country of use provide otherwise, the motors are direct start.

- The mains voltage and frequency must coincide with the specifications on the plate.Differences of ±5% in voltage and ±3% in frequency are permitted.


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CHAPTER 8SETTING THE MACHINE

Before dispatch, the machine is tested and set according to the following specifications:

VIBRATION PROJECTIONTYPE A B AMPLITUDE ANGLE

HZ 50 HZ 60 FRONT REAR5-Front 4-Rear

SGS T 20/R 27∞30' 6∞ 42∞ 30∞4-Front 3-Rear5-Front 4-Rear

SGS T 30/R 35∞ 6∞ 45∞ 20∞4-Pront 3-Rear

FIG. 16

REAR FRONT

projection anglereference screw

projection anglereference screw

A

B

PROJECTION ANGLE


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FIG. 17

MOTOR VIBRATORS WIRING DIAGRAM

0,68

( H

z. 5

0)0,

76 (H

z. 6

0)


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8.1 - VIBRATION AMPLITUDE ADJUSTMENT

It is important that the variation in the flywheel weights is set to the same position on both motorvibrators.

OPERATION TO BE PERFORMED ONLY IN PARTICULAR CONDITIONS

If vibration is not optimum, the motor vibrator flywheels can be adjusted.

For further details on the motor vibrator, see enclosed catalogue.

1. Disconnect the motor vibrators.

2. Remove the covers being careful of thegaskets.

3. Unscrew the mobile weight screw ortightening nut. Once the eccentric weight hasbeen brought to the required value, tightenwith the torque wrench.

4. Perform the operation on the two sidesremembering that the flywheel weights mustbe of the same size and on the same side.


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8.2 - STROKE READING

With the machine working, the measuring lines must meet optically on the value of 4 mm for 50 Hz and3 mm for 60 Hz (this reading is taken on the circular plates located on the sides of the casing) Fig. 18.

8.3 WORKING ANGLE

With the machine working, the disc must line up with the REFERENCE SCREW at a position ofapproximately 30∞.

8.4 SCREEN INCLINATION

ADJUSTING THE MACHINE (to be carried out only in particular conditions)

If there is an excessive amount of grain at the stones outlet, the inclination of the work surfaces can bealtered by adjusting the two levers (1) Fig. 19 located on the front of the machine until the grain separatesfrom the stones.These levers must be adjusted to the same extent.

FIG. 19

FIG. 18

PLATE FOR CHECKING VIBRATION AMPLITUDE AND PROJECTION ANGLE

REFERENCE SCREWREFERENCE SCREWREFERENCE SCREWREFERENCE SCREWREFERENCE SCREW

PROJECTION ANGLEPROJECTION ANGLEPROJECTION ANGLEPROJECTION ANGLEPROJECTION ANGLE

ADJUSTMENT ANGLEADJUSTMENT ANGLEADJUSTMENT ANGLEADJUSTMENT ANGLEADJUSTMENT ANGLE

SCALE FOR VIBRATION AMPLITUDESCALE FOR VIBRATION AMPLITUDESCALE FOR VIBRATION AMPLITUDESCALE FOR VIBRATION AMPLITUDESCALE FOR VIBRATION AMPLITUDE


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8.5 SUCTION ADJUSTMENT

1) Opening the valve increases the speed of the product on the screens; the grains will ìfloatî moreand therefore a greater percentage will be discharged from the light grains outlet. In the lower screen(stoning screen) the grains will move farther away from the stone extraction flap.

2) The valve opening index varies according to the type of product, the selection percentages requiredand the type of perforated plates fitted in the screens.

3) If the suction valves are opened too much, the product is raised and conveyed to the recycle unitdistributor valves.

FIG. 20

GRAVITY SGS/R T30GRAVITY SGS/R T20

1 VALVE2 VALVES


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8.6 SECONDARY SUCTION ADJUSTMENT

The valve must be adjusted so that no air comes out of the front stone outlet hopper (1). Do not openthe valve too much as this will create excessive internal vacuum, compressing the rubber flap onto thehopper wall and thus preventing discharge of the stones.The suction tube will be connected to a main duct.

FIG. 21

1


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FIG. 22

FIG. 23

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��


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CHAPTER 9

STARTING UP

9.1 CHECKS BEFORE STARTING UP- Remove the transport safety protections- Frames - check that they are locked by means of the brackets also check the metal plates on the frame- Vibrators:

- check the voltage- check the direction of rotation: the vibrators must rotate in opposite directions- check the rotation direction of the distributor valve- when a vibrator stops, the other one must also stop

- Check that the stoning flap is locked- Check that no object is resting on the vibrating part- Check that the flap inside the inlet box is free.

9.2 STARTING UP (FIG. 22)- Start up the fan (1), valve (2) and motor vibrators (3).- Set the adjustment shutter (4) to index 6 (two shutters for type T20 - 1 shutter for type T30) via thelevers.- Wait for the product to arrive and check that the flap in the braking box (5) distributes the productcorrectly. For correct regulation, the product level must be halfway up the box.- Check that the product flow covers the whole width of the screen.If the product leaves the metal fabric partially exposed, correct via the rack (6), raising or lowering itaccording to the product quantity.- If you wish to vary the light-heavy grain percentage, replace the last metal plate of the upper screenwith the spare one.

9.3 OPERATING CHECKSIf in the lower screen the product tends to discharge with the stones, the causes can be one of thefollowing:a) Not enough air: open the air intake via the valve (4) Fig. 22.If opening of the valve interferes with the selection of the upper screen, the flap must be opened (7) -Fig. 23 - located above the stone outlet.b) Screen dirty: clean the lower screen once a week if possible with a jet of air, removing the two plugs(10) Fig. 22. This operation can also be performed with the machine operating.c) Flap too high: it must be lowered via the side knobs. If the product is too near only on one side ofthe flap, the flap can be adjusted to different heights with respect to the screen (e.g. on the right side itcan be 3 cm above the screen, on the left side 2 cm).d) Cyclone fins clogged by impurities: open the door (9) Fig. 22 and remove the dirt deposited (8) Fig.22 (OPERATION TO BE PERFORMED WITH THE MACHINE SWITCHED OFF).


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FIG. 24

2

3

8

1

5

4

6

7


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CHAPTER 10MAINTENANCE

OPERATIONS TO BE PERFORMED WITH THE MACHINE AT A STANDSTILL - ENSURETHAT IT CANNOT BE ACCIDENTALLY STARTED UP.

1) Lubrication - see Chapter 22.

2) Screen cleaning:Do not use rubber or metal hammers to clean the sieves.Use metal spatulas and a jet of air.Cleaning frequency:- upper screen: once a month- lower screen: once a weekIf the screen is dirty, it will prevent the machine from stoning and grains will be discharged from thestone outlet.Check that all the screws locking the metal plates are well tightened.From time to time check the screws locking the screen inside the guides (1) Fig. 24.

3) Sieve lower hopper (2) Fig. 24Once a week open the two plugs located at the side of the hopper and clean the inside with a jet of air.

4) Recycle unit upper door (4) Fig. 24Open the door and, using an extractor, clean any impurities on the cyclone fins (this must be done oncea week).

5) Door on fan (5) Fig. 24Via this door you can check whether the fan blades are dirty.If there are patches of grain stuck to the blades, they must be removed as they can cause unwantedvibration (this check must be performed once a fortnight).

6) Recycle unit hopper doorThis door allows you to check that there is no material left inside and that the rotor of the distributorvalves is in good working order (this check must be carried out once every 6 months).

7) Door on connection hopper between stoner and recycle unitProduct leaks may occur on the screens or during dismantling of the screens for cleaning. From this doorthe product deposited inside the hopper can be evacuated (this check must be carried out once afortnight).

8) Check wear on vibration dampersReplace the vibration dampers once a year.


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CHAPTER 11

ACCIDENT PREVISION

IMPORTANT: DO NOT REMOVE THE SYMBOLS AFFIXED TO THE MACHINE

TYPE OFGRAPHIC SYMBOL DESCRIPTION

SYMBOL

PROHIBITION DO NOT REMOVE THE SAFETYPROTECTIONS AND DEVICES

DANGER CAUTION - GENERAL DANGER

DANGER CAUTION - ELECTRICAL DANGER

CAUTION -DANGER TO LIMBSDANGER (CRUSHING, SHEARING, CUTTING

AND ENTANGLEMENT)

O B L I G ATION USE OF PROTECTIVE GLOVESOBLIGATORY

SUMMARY OF INSTRUCTIONS FOR USE VIA THE MAIN SYMBOLS AFFIXED TOTHE MACHINE AND TO ITS ACCESSORIES OR INDICATED IN THIS MANUAL


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This instruction manual has been drawn up according to point 1.7.4 of the EEC directive 89/392 andtaking account of the normal operating conditions of the machine in order, together with the otherinstructions for use affixed on the machine, to inform the operators and users of the residual risksinvolved.

GENERAL DIRECTIONS

The customer undertakes to make confidential use of the instruction manual for operation of the machinein question which will be used only by operators and persons responsible for use of the machine.This instruction manual can be used and consulted only by the customer (under his direct personalresponsibility), by those responsible for operation of the machine, its maintenance, cleaning, inspectionand repair, by the agents appointed for inspecting it and by the agents of Public Bodies or Public Servicesof the Ministry of Employment excluding all other persons.

This instruction manual cannot be duplicated, wholly or partially, unless to facilitate use thereof. It mustalways remain in the place of work at the disposal of the operators responsible for operation, transport,installation, assembly and dismantling, maintenance and starting the machine.The customer can use this instruction manual in order to improve his knowledge of the machine and inorder to be able to use and repair it better - other uses are strictly forbidden.

This instruction manual can be transferred to other persons only if the following conditions areobserved:A) the machine to which the manual refers has been sold to the person receiving the manual;B) all the copies or photocopies kept for any reason are destroyed;C) the third party purchasing the machine accepts in writing, without any limitation, all the terms andconditions contained in this chapter, undertaking to observe them.If one of the above conditions is not observed, the Company SANGATI BERGA S.p.A. will notrecognize third partiesí rights to possess, consult, photocopy, study and use this instruction manual.

In the event of total or partial loss of this instruction manual, the customer must inform SANGATIBERGA S.p.A. and request a copy. The latter will, at its discretion, send the requested documentationat the expense of the customer.

For all matters not provided for by this instruction manual, the legislation concerning copyright andprotection of intellectual, artistic and literary rights will apply.SANGATI BERGA S.p.A. reserves all rights, actions and initiatives taken to limit any damage that mayarise from improper use of this instruction manual.

This instruction manual uses the following definitions of the EEC Directive 89/392:

A) <dangerous area>: any area inside and/or near to a machine in which the presence of an exposedperson constitutes a safety or health risk for said person.

B) <exposed person>: any person wholly or partly in a dangerous area.


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C) <operator>: the persons responsible for installing, running, adjusting, carry out maintenance,cleaning, repair and transport of the machine.

D) <IPD>: Individual Protection Device is any equipment designed to be worn and kept by the workerin order to protect him from one or more risks that may threaten his safety or health during work andall additional items and accessories designed for this purpose.

Before beginning work, the operator must have a perfect knowledge of how the machine works, theposition of all the controls and technical-functional characteristics of the machine.

If the machine is not used in the conditions specified in this instruction manual, themanufacturer declines all responsibility for any damage that may occur to persons and things.

The manufacturer also declines all responsibility for damage to persons and things caused by failure toobserve the directions below. Remember that observance of the safety regulations enables the operatorto work productively and free from worry without the danger of damaging himself or others.

IMPORTANTFor correct use of this machine and in order to guarantee personnel safety, the followinggeneral and specific points must be scrupulously observed.

THE OPERATOR MUST ALWAYS:

1. Use carefully and appropriately all safety devices and individual and group protection provided bythe employer in accordance with the instructions of this manual.

2. Scrupulously follow the directions and instructions provided by the manufacturer, the employer,the management and all other persons responsible for group and individual protection.

3. Immediately inform the employer, the management and person responsible for safety of anydeficiencies in the above-mentioned safety devices and protections in addition to any other dangers hemay become aware of, intervening directly and promptly, in the event of an emergency within the limitsof his competence and ability, to eliminate or reduce the causes of the danger or any deficiencies.

4. Carefully keep this instruction manual in an easily and quickly accessible place.

5. Keep the place of work tidy. Untidy habits can create dangerous situations.

6. Dress appropriately. The operatorís clothing must be suitable, i.e. not too baggy and without looseflapping parts. Cuffs must be elasticized. Do not wear belts, braces, rings and necklaces outside workclothes. Use the IPDs provided for in this manual. Long hair must be tied back.


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7. Have the machine repaired by qualified personnel. This machine and its electrical equipmenthave been designed in accordance with the current safety regulations. Repairs must be carried out byqualified personnel using original spare parts, otherwise damage to the user can occur.

8. Avoid unstable positions. Always ensure that you are in a steady position with respect to themachine and correctly balanced.

9. Disconnect the voltage. Any routine, scheduled or extraordinary maintenance operation must becarried out with the machine at a standstill and without power. Before carrying out the above operationsdeactivate, from the control panel, the power supply master switch. The same applies to other types ofpower (hydraulic, pneumatic etc.).

10. Before every shift ensure that the safety devices and protections are working. Check correctoperation of all the safety devices on the machine.

11. Avoid incorrect use of the power supply cable. Only use cables with section adequate for themachine power. Protect the cable from high temperatures, cutting surfaces and edges and replace if wornor damaged.

THE OPERATOR MUST NEVER:

1. Remove or modify, without prior authorization, the safety, measuring and signalling devices andthe individual and group protections.

2. Perform under his own initiative operations or manoeuvres not pertaining to him which canendanger his own or other personsí health and safety.

RESIDUAL RISK AREAS

Although all safety devices have been adopted on the machine in order to eliminate possible risks forthe operator, some areas of the machine are defined ìRESIDUAL RISK AREASî.These areas concern moving parts of the machine that can represent a danger for the operator if he usesthem incorrectly, commits an assessment error or is careless and forgets to follow the directionscontained in this manual.The machine is also provided with notices affixed to the residual risk areas which must be scrupulouslyobserved.


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RISK ANALYSIS

Analysis of the risks of the RECYCLE GRAVITY SELECTOR has been performed referring to the listof dangers according to EN 292 and enclosure I of the EEC Directive 89/392.

The dangers of the machine and solutions adopted to prevent or neutralize them are given below.

MACHINE NOISE LEVEL

- The sound pressure level recorded on the machine is 75 dB (A).- This was measured with the machine surface at a distance of 1 m and at a height of 1.6 m above thefloor.- The reading was taken without grains passing through the machine.- The values were obtained from the arithmetic mean of the noise levels recorded around the machine.- The room in which the reading was taken was a metal structure (floor - ceiling - walls).- The values can vary slightly depending on the room where the machine is installed.

LIST OF DANGERS

Danger of shearing and/orcrushing

Danger of cutting or sectioning

Danger caused by noise

Danger from contact orinhalation of harmful fluids, gas,mist, fumes and dust

DANGEROUS SITUATION

Movement of various parts ofmachine

Parts of machine with cutting orsharp surfaces

Noise level <75 dB

Dust deriving from use of dustyproducts

SOLUTIONS ADOPTED TOPREVENT RISKS

Fixed and movable protections

Smooth sharp edges

See instruction manual

Extraction to be provided bythe user


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ACCIDENT PREVENTION

1 - As the stoner operates by vibration, nothing must be rested against the machine. Machines inremote-controlled systems must be considered operating even when at a standstill.

THE MACHINE MUST NOT BE USED BEFORE THE MACHINE AND/OR SYSTEM INWHICH IT WILL BE INCORPORATED OR ASSEMBLED HAVE BEEN DECLARED TO BEIN COMPLIANCE WITH THE PROVISIONS OF THE EEC DIRECTIVE 89/392.

2 - The motor vibrators inclination must be altered and the screens changed only when you are certainthat the machine cannot be started from the control cabinet.For this purpose a service switch must be fitted near the machine.

3 - The vibrator weight covers must always be fitted before starting the machine.

4 - The screw-fitted doors must only be removed when the machine is at a standstill.

5 - Failure to observe these precautions will render all rights to compensation for damages null andvoid.

6 - The customer must also observe all local safety requirements.

7 - Welding must never be carried out inside the machine.

GENERAL WORKING SAFETY

Periodical mechanical checks- Once a week and in fixed shifts check all the V belts and belt drives in order to avoid slipping andconsequent heating.- Once a week and in fixed shifts check all the revolution control equipment and all similar safetydevices.- Once a week and in fixed shifts check operation of all the shafts and supports in order to preventheating and lubricate them as prescribed.- Once a day and in fixed shifts check and clean all the magnetic separators, stoners, screens, etc.


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Electrical checksThe following checks must be carried out on all electrically powered systems and equipment:- hand lamps and lighting equipment mst not be used unless provided with screen or protective glass;- faulty systems and equipment must be immediately repaired or replaced;- loose cables must not be left lying on the floor;- at the end of work the electricity supply must be disconnected;- at least once a year check the entire electrical system and eliminate any faults;- to guarantee safety of the electrical system and prevent an explosion due to electrostatic discharge,ensure that all metal parts are unipotential; in particular remove the paint on the jumpers.

CleaningGood general cleaning is an essential condition for safety when working with inflammable dust.To reduce the risk of a dust explosion, all dust must be regularly removed from the premises and smokingmust be prohibited.To avoid the accumulation of dust:- keep all conveying elements, cyclones, filters etc. clean;- avoid dust leaks from tubes, covers etc.;- always keep the motors dust-free;- avoid storing material, in sacks or loose, between the machines.

WeldingRepair and assembly work requiring the use of welding systems and equipment involving flames orincandescent equipment must be carried out as far as possible in suitably equipped places.If repair work requiring the use of welding systems, equipment involving flames or incandescentequipment has to be carried out in the production or storage areas, the work must be previouslyauthorized by the person responsible for the system.This work must be carried out only on condition that all necessary safety precautions are taken, i.e.:- keep damp or special tarpaulins nearby for covering;- monitor the welding bridges for at least 10 hours after the end of work.The drops of liquid metal (welding pearls) dispersed during torch cutting are very dangerous as it isimpossible to see where they go. Via cracks or apertures they can end up in adjacent rooms or roomsbelow (even 10 m away). If the welding pearls end up in a layer of dust, always ensure that it burnswithout flame.It is strictly forbidden to carry out welding work on conveying elements while they are working (for thereason given above). These elements must be stopped, thoroughly cleaned and the welding area sealedoff.If welding has to be performed on vertical or conveyor tubes, they must be dismantled or the bottom endsealed to prevent incandescent particles getting into the conveying paths or the silos.


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GENERAL SAFETY PRECAUTIONS

The SANGATI machines and equipment are provided with state-of-the-art safety devices complyingwith accident-prevention regulations generally valid for the use the machines are intended for.The person running the machine is required to follow the instructions below in order to ensure maximumpersonnel safety.- The belt covers, grille chain covers, grate bars, safety grates etc. are generally already fitted whenthe machine is supplied and must always be kept closed or fitted. When open or dismantled, theyrepresent an accident hazard (cutting, crushing, bruising etc.). These covers can usually be removed bymeans of tools. However, the machines provided with these devices must only operate with the devicesfitted.- The safety switches, revolution control devices, magnetic valves, door lock magnets, limit switchesetc. must always be in efficient working order. These devices must not be by-passed or put out of order.- For maintenance, overhauling and fitting out, the control motor must be put out of order; for theother power sources (hydraulic, pneumatic) the power supply must be disconnected and the pressure inthe machine pipes brought to zero.- A machine put out of order by an emergency switch (or emergency key) must not restart until thisswitch is re-enabled. The machine must restart only when the master switch is re-enabled.- Machines and their parts must be cleaned, greased and oiled only with the machine at a standstill.If these operations require the personnel to climb onto the machine or go inside it, it is obligatory todisconnect all the poles of the motor or control motors and lock the general electrical panel.- If the machine is provided with heated elements, they must be treated with due caution in view ofthe danger of burns.- If samples have to be taken from the machines, this must be done without risk. It is often possibleto take product samples from a tube upstream or downstream from the machine instead of directly fromthe machine.- Oil or grease leaks must be immediately eliminated. Patches of oil or grease on the floor increasethe risk of accidents.- Accumulations of dust, dirt or grain must always be removed. Cleaning of the machines andinstallations increase the safety and hygiene of the system and also help to prevent the risk of dustexplosions.


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CHAPTER 12

CONTROL

1 - The vibrating part is controlled by two motor vibrators.The vibrators must rotate in opposite directions (Fig. 25).Direct start.The electrical connection must be made with flexible cable according to CEI regulations.

2 - For the rotation direction of the distributor valve and fan motor, see plates on the machine.

FIG. 25


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CHAPTER 13

SIEVE SUPPORT

The sieve is positioned on four rubber springs. The two front ones (screens outlet side) are smaller thanthe rear ones (for types, see spare parts list).When replacing, they must be changed in pairs (e.g. two front or two rear) - never replace one singlepiece.


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CHAPTER 14

SCREEN FRAME

The structure of the frame is normally made of wood to facilitate changing of the covers.

a) Composition of the framesThe machine contains two frames:1) Upper frame: it has the job of stratifying and separating the light grains from the heavy grains.It consists of 3 types of cover.2) Lower frame: it has the job of stoning, i.e. separating the product from the stones.

Composition of the screens (basic model for wheat)

1st part: mesh opening 1x1 mm. with dia. 0.8 mm. wire2nd part: metal plate with oblong holes3rd part: metal plate with round holes3rd part (spare): metal plate with round holes

FIG. 26

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b) Replacing the upper screen coversThe perforated metal plates are fixed to the wooden frame by wood screws with special washers.Check the fixing screws once a week.

c) Replacing the lower screen covers

FIG. 27

FIG. 28

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CHAPTER 15

SCREENS TIGHTENING DEVICE

The screens must always be dismantled and reassembled with the machine at a standstill.

DismantlingThere must be no material on the screen: simply operate the motor vibrators for a few minutes withoutsuction to completely evacuate all the product.Loosen by unscrewing the two handles (1).Rotate the bracket (2) 180∞ and then pull the screen out via the handles (3).

AssemblyEnsure that the screen guides are clean, fit the screen, rotate the brackets and relock with the handle.Recheck after approximately one hour.

1

2

3

FIG. 29


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CHAPTER 16INLET

16.1 INLET BOXThe flap located inside the box (1) has the job of distributing the product over the whole width of thebox and partially shutting off the through section to prevent air entering from the duct piping.The further the spring (2) is hooked towards the end of the lever (3), the greater the amount of productwithheld by the flap.

16.2 CONTROL DEVICEYou are advised to fit a product presence sensor on the product inlet tube to prevent the grain dischargingtogether with the stones at the end of the cycle. If there is no grain, simply stop the motor vibrators viathe sensor; when the grain arrives, it will restart the motor vibrators.FOR GOOD STONING IT IS IMPORTANT THAT THE PRODUCT FLOW IS STEADY ANDCONTINUOUS.

FIG. 30

FIG. 31

12

3

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CHAPTER 17DISTRIBUTION GRILLE

The following operation must be carried out only in exceptional cases and with the machine at astandstill.If the product is not able to spread over the whole width of the screen (1) because the product quantityis lower than the actual capacity of the machine, the grille (2) must be adjusted.Remove the side walls (3). Remove the self-locking nuts (4), lower the grille by one or two holes asrequired and relock with the nuts.This will reduce the through section (5) and the product will therefore spread to the outside.This adjustment can also be used to increase the section (5) if there is too much product.

FIG. 32

4

2

5

3

1


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CHAPTER 18CENTRIFUGAL FAN

The fan with the CE mark, in addition to complying with the specific UNI 9219 standard of January1988, also complies with the provisions contained in the EEC Directive 89/392.

For maintenance of the fan, see the enclosed instruction manual.

SPECIFICATIONS

SGS/R T20 SGS/R T30

m3/min. 150

H.tot. 200 mm. H2O

m3/min. 190

H.tot. 100 mm. H2O


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CHAPTER 19RECYCLE UNIT

The recycle unit is provided with a special system for using the suction air which permits installationin any system without requiring connection to the central suction line.The light grains sucked by the fan are conveyed into the cleansing chamber and then reintroduced intothe area below.No adjustment is required.For maintenance see Chapter 10.


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CHAPTER 20

SPARE PARTS

HOW TO ORDER SPARE PARTS

When ordering spare parts, please quote the type and serial number of your machine together with theyear of manufacture and spare part codes.


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DRAWING 1


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DESCRIPTION CODE QTY. POSITION

1 Motor vibrator2 Casing3 Rubber profiles4 Plexiglas panels5 Base6 Rubber flap7 Bracket8 Deflector above screen9 Deflector below screen10 Locking handle11 Locking bracket12 Upper support13 Front rubber spring14 Adjustable support15 OR ring16 Lower support17 Pin18 Knob19 Handwheel20 Bracket21 Rubber flap22 Plexiglas side panel23 Motor vibrators support24 Outlet hopper25 Outlet hopper26 Rear rubber spring27 Bush28 Bracket

The position numbers refer to Drawing 1.

The specifications and measurements given here are not binding for the manufacturer and canbe altered for the purposes of product improvement.


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DRAWING 2


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DESCRIZIONE CODICE N. DIPEZZI

POSIZIONE

1 Box panel2 Gaskets3 Plexiglas panel4 Hose clip5 Upright6 Hose7 Inlet side panel8 Inlet upper panel9 Rubber support10 Plate11 Side gasket12 Panel13 Flat bar14 Rack15 Suction hood16 Counterflange17 Suction inlet18 Hose clip19 Suction tube20 Hose clip21 Spring22 Inlet panel23 Valve24 Pin25 Spring pin26 Lever27 Graduated index28 Knob29 Plexiglas panel30 Plexiglas side panel




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DRAWING 4

DRAWING 3


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DRAWING 31 Gasket2 Flat bar3 2nd part perforated metal plate4 Gasket5 1st part metal mesh6 Frame7 Gasket8 Screen lock9 Bracket10 Flat bar11 Gasket12 Flat side bar13 3rd part perforated metal plate14 Cleaning balls15 Flat bar

DRAWING 41 Gasket2 Metal balls perforated support plate3 Frame4 Gasket5 Screen lock6 Handle7 Metal balls perforated support plate8 Flat bar9 Gasket10 Strip11 Strip

The position numbers refer to Drawings 3 and 4.



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DRAWING 5


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1 Motor2 Fan3 Suction duct4 Bracket5 Supporting trestle6 Product inlet7 Lever8 Nut9 Knob10 Connection hopper11 Upper panel12 Front panel13 Side panel14 Hopper15 Upper door16 Cowling17 Cyclone18 Lower panel19 Upper panel20 Handwheel21 Panel22 Conveyor with fins23 Internal side panel24 External side panel




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DRAWING 6


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1 Hopper2 Hose clip3 Hose4 Door5 Base6 Lower panel7 Gearmotor8 Gearmotor support9 Chain for joint10 Joint11 Lower hopper12 Panel13 Base14 Distributor valve15 Outlet hopper




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DRAWING 7


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1 Gaslet2 Ring3 Bearing4 Cover5 Shaft6 Key7 Screw8 Casing9 Screw10 Impeller




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CHAPTER 21ENCLOSURES

For the electric vibrators - electric motor- fan - see enclosed istruction manual

t20-t30 ing

Documents

sangati berga machines

sangati berga s

receipteach machine

machine subject

sangati bergatype

machine andor system

maintenance instructions

lubrication instructions