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MVA 02 rev 5 - December 2017

2.- Remove the two VA sealing rings located
between the shaft and the two support end covers
(Photo 47).

Photo 47

3.- Remove the fixing bolts and the cover on the
impeller side (Photo 48).

Photo 48

4.- Extract the shaft.

For Type ST…A… supports, the last operation is to
completely remove the shaft. When this is done, the
two bearings, both on the impeller side and on the
transmission side, are also extracted (Photo 49). To
dismantle the radial bearings from the shaft use an
extractor.

Photo 49

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Содержание AF Series

Страница 1: ...MVA 02 rev 5 December 2017 1 of 120 Axial fans Warnings and instructions for use Translation from the original language ...

Страница 2: ...rective 2006 42 EC The Manufacturer Ferrari Ventilatori Industriali S p A Via Marchetti 28 36071 Arzignano VI Italy DECLARES under its own responsibility that the machine denominated industrial fan Ferrari Ventilatori Industriali S p A 36071 Arzignano Vicenza Via Marchetti 28 Tel 39 0444 471100 Fax 39 0444 471105 http www ferrariventilatori it ...

Страница 3: ...nstallation type B Instructions for assembly installation and connections 22 3 4 Installation type C Instructions for assembly installation and connections 23 3 5 Assembly and fastener diagrams for fixing guards 24 3 6 Installation type D Instructions for assembly installation and connections 28 3 7 Risks involved in foreseeable incorrect handling and or abnormal uses based on experience 29 3 8 Ot...

Страница 4: ...59 6 2 Checks to be made with fan fully operating 60 6 2 1 Visual checks on guards 60 6 2 2 Checking and cleaning parts in contact with fluids 61 6 2 3 Visual checks on impeller and casing 61 6 2 4 Dimensional checks 62 7 AXIAL FAN OPERATING MALFUNCTIONS 63 7 1 Most frequent malfunctions 63 8 MAINTENANCE 65 8 1 Bearing lubrication 66 8 2 Checking spherical roller bearings 69 8 3 Checking self alig...

Страница 5: ...sembling and dismantling pulleys 91 10 3 2 Assembling and dismantling drive belts 96 10 4 Replacing shaft and bearings on one piece support 98 10 4 1 Dismantling shaft on one piece support 98 10 4 2 Reassembling shaft on one piece support 103 11 FINAL DISMANTLING AND DISPOSAL OF FANS 109 11 1 Version 4 axial fans 110 11 2 Version 1 9 axial fans 111 11 3 Version 12 axial fans 112 12 TECHNICAL APPEN...

Страница 6: ...9 EF axial fans 44 Fig 4 3 Example of lifting version 9 EB axial fans 44 Fig 4 4 Example of lifting version 12 axial fans 44 Fig 4 5 Example of lifting version 4 EF axial fans 45 Fig 4 6 Example of lifting version 4 A ES axial fans 45 Fig 4 7 Example of lifting version 4 B EF axial fans 46 Fig 4 8 Example of lifting version 8 axial fans 46 Fig 4 9 Example of lifting fans packed in crate 48 Fig 5 1...

Страница 7: ...d extraction holes 85 Fig 10 4 Locking blades 91 Fig 10 5 Pulley holes 92 Fig 10 6 Angular misalignment 94 Fig 10 7 Parallel misalignment 94 Fig 10 8 ST A one piece support with radial ball bearings both on impeller side and transmission side 98 Fig 10 9 ST B one piece support with radial ball bearings on impeller side and roller bearings on transmission side 99 Fig 10 10 Support with cooling fan ...

Страница 8: ...hart 8 1 Quantity of grease for first filling of supports and bearings on fans with transmission 67 Chart 8 2 Relubrication intervals and quantity of grease according to fan rotation speed 68 Chart 8 3 Checking radial clearance on bearings 69 Chart 8 4 Tightening angle axial movement and minimum residual clearance on ball bearings 70 Chart 8 5 Setting drive belt tension test load and deflection 71...

Страница 9: ...y precautions differ according to the type of fan installation as specified in paragraph 3 1 below The information given in this manual is therefore indispensable for the use of fans in conformity with the destination of use of the product and without risks In this manual the letters FVI stand for Ferrari Ventilatori Industriali S p A No part of this manual may be copied reproduced or transmitted ...

Страница 10: ...ts This symbol is applied near the inspection hatches provided on fans It is permitted to open inspection hatches only when all moving parts have reached a complete standstill Indication of a lifting point This symbol is applied near the points identified by FVI for lifting and moving the fan Hot surfaces 60 C Danger of burns or scalding Hot surfaces Emission of hot fluids This symbol is applied i...

Страница 11: ...ified for an axial fan either from the motor towards the impeller flow A or from the impeller towards the motor flow B see Fig 2 2 Rotation speed this is the rotation speed of the impeller and is measured in revolutions per minute RPM Efficiency this is the percentage ratio between the energy that the fan manages to transmit to the fluid and the energy supplied by the motor to the impeller it depe...

Страница 12: ...8 0 45 90 135 180 315 225 270 VERSION 9 VERSION 12 Standard position with motor at 0 Fig 2 1 Axial fan versions 2 2 2 Flow indications The diagram refers to version 4 but is valid for all construction versions A Flow from motor to impeller B Flow from impeller to motor U Flow upwards D Flow downwards A AD AU B BD BU Fig 2 2 Flow indications ...

Страница 13: ...OLI 50 Hz EF0906I04AA02 EF 906 I 4A A 132 A19 FVI customer code optional FVI customer order number optional FVI customer item number optional Type and characteristics of motor installed Fan flow capacity optional Total fan pressure optional Serial number Fan identification code Fan series Fan size Version use flow Blade fitting angle 60 Maximum temperature of fluid moved in C Manual Installed moto...

Страница 14: ...complete with bearings and drive shaft 6 transmission by drive belts and trapezoidal pulleys 7 or flexible couplings to transfer the energy provided by the motor a cooling fan between the impeller and the support if the fluids are to be moved with an operating temperature greater than 60 C 8 For versions 8 and 12 see Fig 2 1 a common base is normally provided to support the fan the motor and the t...

Страница 15: ...oling oil platform conditioning Other applications not listed but agreed with our Engineering and or Research Development Area Some categories of use other than those described above are excluded and more specifically Operation of the fan with non gaseous fluids or with fluids with characteristics different from those defined in the technical information sheet accompanying the fan since structural...

Страница 16: ...0 days per year the expected life cycle for the impeller is equivalent to 40 000 hours In case of use in conditions of particularly difficult operation medium high this limit must be reduced Any such reduction must be assessed in collaboration with the FVI Technical Office In the specific case of operation at variable speeds the impeller life cycle must be assessed on a case by case basis and must...

Страница 17: ...guards must be installed according to installation type Type A installation fixed FVI guards installed on intake and exit Type B installation fixed FVI installed only on intake Type C installation fixed FVI guard installed only on exit Type D installation no fixed guards installed on intake and exit The system designer and the user must ensure that ducting systems are fitted with conformant guards...

Страница 18: ...ck the efficiency of all guards every month In case of wear damage or breakage replace them immediately Guards must be fixed securely in position using fixings that are not slackened by vibrations and that require the use of a tool for their removal CAUTION On starting and in compliance with programmed maintenance intervals check that nuts and bolts are correctly tightened Monitor vibration levels...

Страница 19: ...are fitted Each guard if supplied individually can be used only on the fan for which it was designed If therefore a guard is ordered individually it is compulsory to provide the reference details of the fan to which it will be fitted serial number Guards of the type shown in Chart 3 1 must be bolted to the fan intake and exit Chart 3 1 also shows highlighted with a grey background the guards that ...

Страница 20: ...nium D B RC RC EK aluminium B A RE RC C B RC RE EQ aluminium B A RD RC C B RC RD EP aluminium B A RD RC C B RC RD ET version A aluminium C A RG RT B B RT RG EF steel D A RC RC D B RC RC ES version A steel B A RS RC C B RC RS EB steel D A RC RC D B RC RC EFR version B steel D B RC RC AF steel D A RC RC D B RC RC Chart 3 1 Installation types supplied and mesh guards used grey backgrounds show guards...

Страница 21: ...MVA 02 rev 5 December 2017 21 of 120 Fig 3 1 RC mesh guard Fig 3 2 RG mesh guard Fig 3 3 RS mesh guard Fig 3 4 RD mesh guard ...

Страница 22: ...tacts and to resist the pressures generated only by the fan to which they are fitted Each guard if supplied individually can be used only on the fan for which it was designed If therefore a guard is ordered individually it is compulsory to provide the reference details of the fan to which it will be fitted serial number A guard of the type shown in Chart 3 1 must be bolted to the fan intake Chart ...

Страница 23: ... pressures generated only by the fan to which they are fitted Each guard if supplied individually can be used only on the fan for which it was designed If therefore a guard is ordered individually it is compulsory to provide the reference details of the fan to which it will be fitted serial number A guard of the type shown in Chart 3 1 must be bolted to the fan intake Chart 3 1 also shows highligh...

Страница 24: ...mesh RD mesh RT mesh Mesh fixing fasteners no x type No pins 315 4xM8 4xM8 4xM8 4xM5 355 4xM8 4xM8 4xM8 4xM5 400 4xM8 4xM8 4xM8 4xM5 2 450 12xM8 4xM8 4xM8 4xM5 500 12xM8 4xM8 4xM8 4xM5 3 560 12xM8 4xM8 4xM8 4xM5 630 12xM8 4xM8 4xM5 3 710 16xM10 8xM10 8xM6 4 800 16xM10 8xM10 8xM6 4 900 16xM10 8xM10 22xM10 8xM6 5 1000 24xM10 8xM10 22xM10 8xM6 6 1120 24xM10 8xM10 30xM10 1250 24xM10 8xM10 30xM10 1400 ...

Страница 25: ...ev 5 December 2017 25 of 120 Fig 3 7 Assembly diagram for RC mesh Fig 3 8 Assembly diagram for RG mesh RC mesh Fan structure Flanged nut Ferrari washer Bolt Fan structure Flanged nut RG mesh Ferrari washer Bolt ...

Страница 26: ...20 MVA 02 rev 5 December 2017 Fig 3 9 Assembly diagram for RS mesh Fig 3 10 Assembly diagram for RD mesh Fan structure Flanged nut Bolt RD mesh Fan structure RS mesh Bolt Ferrari washer Flanged nut Flat washer ...

Страница 27: ...MVA 02 rev 5 December 2017 27 of 120 Fig 3 11 Assembly diagram for RE mesh Fig 3 12 Assembly diagram for RT mesh Fan structure Flanged nut RE mesh Ferrari washer Bolt ...

Страница 28: ...or applications that are not particularly difficult depends on two fundamental factors dust content of the fluid moved fluid temperature Clean air Type 2 joint 60 C without anti wear strip Type 3 joint 180 C without anti wear strip Dusty air Type 5 joint 60 C with anti wear strip Type 6 joint 180 C anti wear strip Joints type 2 3 5 and 6 cannot be used on fans subject to the ATEX 2014 34 EC Direct...

Страница 29: ...ction devices these must be replaced and checked for correct positioning and efficiency before the fan is started again All guards and safety devices must be maintained in conditions of perfect and constant efficiency Warning signs safety symbols and danger warnings must be also maintained in perfect efficiency and in their correct position When tracing the causes of any faults or malfunctions wit...

Страница 30: ...ns malfunctions and hazards 3 8 1 Specific risks with fans during installation The user must provide a well levelled fixing surface Incorrect levelling may cause abnormal fan vibrations that over time could cause deformation and or breakage with the detachment of fan parts representing a hazard for exposed persons that may even be fatal The user must also arrange electrical connections for the fan...

Страница 31: ...Corrosive agents dust gas fumes mist high temperatures condensation solid bodies abnormal turbulence currents of air voltage differences due to installation can affect the lifespan of components causing premature deterioration above all with respect to guards Since it is impossible to establish all inclusive criteria that can take into account all the possible combinations of these effects it is a...

Страница 32: ...aults or malfunctions overspeed conditions may be created due to Errors in the control logic system Short circuits on monitoring components Driver or inverter malfunctions Mechanical breakage of components and in particular on encoder shafts CAUTION Do not exceed the maximum rotation speed indicated by FVI Do not use ON OFF operating cycles unless expressly approved by FVI Do not use variable spee...

Страница 33: ...e of fans supplied without an electric motor incorrect electrical connections to the motor or the wrong motor choice could be the cause of operation at speeds in excess of the original design speed given that the rotation speed of an asynchronous motor depends on the frequency and the number of poles CAUTION Fans are designed to be powered with a supply frequency of 50 Hz The manufacturer must alw...

Страница 34: ...the information given on the transmission specifications document supplied with the fan Operation at a speed significantly lower than up to 40 of nominal speed unless otherwise specified by FVI may affect the cooling of the motor and bearings with possible malfunctions due to higher temperatures For electrical components the user and installer are advised to provide adequate protection for the dri...

Страница 35: ...f the risks to workers of exposure to noise is not the responsibility of FVI which limits itself to indications of values levels of uncertainty standards or criteria used for noise emission measurements As envisaged by applicable legislation it is the user that must assess the level of exposure of operatives to noise emissions using its own specific procedures identifying sources of noise and thei...

Страница 36: ...h ducting on both the intake and exit sides Pressure values are recorded on the measurement surface surrounding the fan parallelepiped measurement surface Sound pressure measurements are obtained experimentally with 8 microphones located on the reference surface at a height equivalent to the fan rotation axis see Fig 3 13 The pressure value is expressed in dBA value weighted according to scale A T...

Страница 37: ...ngineering method in an essentially free field over a reflecting plane EN ISO 3746 Determination of sound power levels of noise sources using sound pressure survey method using an enveloping measurement surface over a reflecting plane ISO 13347 Industrial fans Determination of fan sound power level under standardized laboratory conditions MICROPHONE POSITION Measurements external to ducts ...

Страница 38: ...98 102 103 77 77 85 400 99 99 98 102 106 78 78 91 79 450 102 102 99 103 109 83 83 93 500 102 102 100 103 112 86 84 96 85 560 107 107 101 105 116 89 88 87 630 108 108 101 105 119 82 92 95 710 104 104 102 106 106 88 99 800 104 104 103 106 109 89 90 900 110 110 107 111 97 98 1000 110 110 106 110 99 99 1120 111 111 107 111 1250 107 107 106 110 1400 108 108 106 111 Uncertainty 3 dB Chart 3 3 Acoustic p...

Страница 39: ...00 110 900 111 111 111 115 113 1000 113 113 112 116 116 1120 115 115 113 117 120 1250 116 116 114 118 123 1400 117 117 114 119 126 1600 119 119 116 120 121 1800 122 122 117 121 2000 123 118 Uncertainty 3 dB Chart 3 4 Acoustic power emitted Lw A dBA 1 ducted only on exit 2 ducted only on exit and at maximum synchronism speed 3 ducted only on intake and at maximum synchronism speed ...

Страница 40: ...6 86 62 62 67 355 87 87 85 88 90 64 64 72 400 86 86 85 88 93 65 65 78 65 450 89 89 86 89 96 70 70 80 500 88 88 86 89 98 72 71 83 71 560 93 93 87 90 102 75 75 74 630 94 94 87 90 105 68 78 80 710 90 90 88 91 91 74 84 800 89 89 88 91 94 75 74 900 95 95 92 95 83 82 1000 95 95 91 94 84 83 1120 95 95 91 94 1250 91 91 90 93 1400 92 92 90 93 Uncertainty 3 dB Chart 3 5 Acoustic pressure emitted Lp A dBA ...

Страница 41: ... 710 107 800 95 900 96 96 96 99 98 1000 98 98 97 100 101 1120 99 99 97 100 104 1250 100 100 98 101 107 1400 101 101 98 101 109 1600 102 102 99 102 104 1800 104 104 99 102 2000 105 100 Uncertainty 3 dB Chart 3 6 Acoustic pressure emitted Lp A dBA 1 ducted only on exit 2 ducted only on exit and at maximum synchronism speed 3 ducted only on intake and at maximum synchronism speed ...

Страница 42: ...er assumes liability for the choice of the lifting equipment and ropes straps or chains considered to be most suitable both for the purpose and for their lifting capacity For lifting and movement do not use zones or points other than those marked by a symbol 4 2 General warnings for lifting separate fan parts For reasons of transport some fan parts may be delivered disassembled CAUTION All transpo...

Страница 43: ...A 1 3 7 It is advisable for unused arms to be gathered and hooked together to reduce the risk of them swinging freely or being caught up during movement of the load Every time that a sling is used it must be inspected beforehand for possible damage or evident signs of wear To connect the sling to the load it is preferable to use the method with straight arms In this case the lower ends are connect...

Страница 44: ... 44 of 120 MVA 02 rev 5 December 2017 Fig 4 2 Example of lifting version 9 EF axial fans Fig 4 3 Example of lifting version 9 EB axial fans Fig 4 4 Example of lifting version 12 axial fans ...

Страница 45: ...ided in the structure must be used as shown in Fig 4 5 These holes are located on opposite sides above the centre of gravity and are indicated by specific symbols For the criteria to be applied in lifting operations the instructions provided in paragraph 4 3 1 must be followed Fig 4 5 Example of lifting version 4 EF axial fans Fig 4 6 Example of lifting version 4 A ES axial fans ...

Страница 46: ...or a toothed coupling To lift these fans only the specific holes provided in the structure must be used as shown in Fig 4 8 The lifting symbols are located near the holes in the structure most suitable to balance the weight of the fan For the criteria to be applied in lifting operations the instructions provided in paragraph 4 3 1 must be followed Fig 4 8 Example of lifting version 8 axial fans CA...

Страница 47: ...ability of the load is ensured when the position of the centre of gravity is located at a lower height vertically than the lifting point whenever possible it is preferable to lift crates using lifting straps and or chains CAUTION Before lifting check that the capacity of the lifting equipment is compatible with the load that the lifting equipment is in good condition that the load has been correct...

Страница 48: ...rotected against weather conditions and damp dust and the effects of atmospheric and environmental agents CAUTION Close intake and exit openings during storage It is advisable to periodically check the satisfactory state of conservation of the fan and to manually rotate the impeller about once a month to prevent deformations to bearings ...

Страница 49: ...ons during fan operation The support surface must be flat and horizontal to prevent the bending and misalignment of supports If necessary suitable metal spacers must be placed between the fan base and the support surface to ensure perfect adherence Use the fixing points provided ensuring that the tightening of nuts and bolts does not deform fan structures The support surface must be sufficiently r...

Страница 50: ...tion devices connected directly to the fan intake may generate instable operation 5 1 1 Minimum installation distances If possible in the available space to guarantee correct entry of the fluid into the intake opening it is advisable on fans connected to ducting to leave a straight section of duct with a length about 2 5 times the fan size given on the identification plate The result of this calcu...

Страница 51: ...2 Minimum installation distances with free intake 5 2 Assembly of axial fans The main steps of the assembly of axial fans in the various versions supplied are illustrated below 5 2 1 Version 4 axial fans Fig 5 3 Assembly of version 4 axial fans ...

Страница 52: ...e impeller After the impeller has been fitted to the projection on the motor shaft and the head washer has been fully fixed a check must be made to ensure that the clearance between the impeller and the casing 3 is constant around the entire circumference If clearance is not constant correct the position of the motor support base 3 Fixing of motor Fully tighten the motor fixing nuts see paragraphs...

Страница 53: ...sher has been fully fixed a check must be made to ensure that the clearance between the impeller and the casing 3 is constant around the entire circumference If clearance is not constant insert compensation spacers beneath the support feet Axial fans with FVI transmissions are all fitted with the type ST one piece support as the standard version see paragraph 9 1 ST supports versions A AL B BL 3 F...

Страница 54: ...moving parts with the envisaged guards Chart 5 3 Sequence of operations for assembly of version 9 12 fans refer to Fig 5 5 for the identification of components 5 2 4 Version 8 axial fans Fig 5 6 Assembly of version 8 axial fans After completing steps 1 2 3 indicated in paragraph 5 2 2 proceed with the installation of the transmission Step Operation Description 1 Installation of casing and motor pe...

Страница 55: ...le couplings alignment must be checked before starting the fan as the motor pedestal could have been deformed during transport or due to tightening of the foundation bolts 5 4 Electrical connections CAUTION The fan is supplied in conformity with Directive 2014 30 EC on electromagnetic compatibility In particular the electric motor if supplied with the fan is guaranteed by its manufacturer to be co...

Страница 56: ...and emergency stopping in conformity with Annex I of MACHINERY DIRECTIVE 2006 42 EC CAUTION It is the responsibility of the customer and or electrical installer to choose the correct size and type of the device and of cables used for electrical connections to the fan depending on the motor installed and the mains power supply system Work may be done on electrical components only with the fan at a ...

Страница 57: ...o the fluid moved by the fan Unless otherwise specified FVI considers that the fan is used to move clean air Electrical connections to the external terminal box must be made with the same IP protection level as the motor 5 5 Connection to ducts The fan must be connected to ducting with all parts correctly aligned without obstructions to air flow from gaskets or flexible components The weight of du...

Страница 58: ...the intake opening it is advisable on fans connected to ducting to leave a straight section of duct with a length about 2 5 times the fan size given on the identification plate The result of this calculation divided by 1000 gives the recommended length in metres Fig 5 10 Minimum installation distances with intake duct ...

Страница 59: ...parts can turn freely Check for the absence of objects or foreign bodies inside the fan Starting the machine requires no particular operations other than the supply of electrical power to the motor Always check that the supply voltage corresponds to the voltage envisaged for use of the machine and is compatible with the voltage indicated on the motor identification plate In case of use with an inv...

Страница 60: ...erature probe on the transmission side of the support With regard to vibrations the criterion for the verification of conditions of safety refers to standard ISO 14694 2003 which recommends the following limits for mechanical vibrations vibration speed in mm s RMS measured in installation conditions alarm 7 1 rigid 11 8 flexible stop 9 rigid 12 5 flexible These limits are considered to be valid by...

Страница 61: ...al fan vibrations 6 2 3 Visual checks on impeller and casing Periodical visual checks must be made for wear on impeller blades given that deterioration of these parts can create a condition of extreme risk due to the ejection of the blade or the failure of structural components with consequences that may even be fatal CAUTION Axial fans must not be used for fluids containing abrasive agents To mon...

Страница 62: ...nsion Caliper or equivalent Reduction of thickness no greater than 10 in an area without wear OK Intake thickness if present Dimension Caliper Reduction of thickness no greater than 20 in an area without wear or with paint undamaged OK Anti vibration joints thickness of anti wear sheeting if present Dimension Caliper Reduction of thickness no greater than 20 in an area without wear or with paint u...

Страница 63: ...er than design value Rotation speed too high Reduce rotation speed Resistance pressure of system greater than design value Check the resistance pressure value of the system Openings or ducting partially blocked Eliminate obstruction Check the position of adjustment organs Pre rotation of air in opposite direction to fan rotation Check minimum installation distances paragraph 5 1 1 Fluid density hi...

Страница 64: ...ct coupling between moving parts Intrinsic bearing defects Check condition of bearings Bearing malfunctions due to unbalanced impeller or excessive belt tension Check condition of bearings Check belt tension see paragraph 8 4 Excessive noise Friction between moving parts Check for correct coupling between moving parts Vibrations See previous point Vibrations Pulsating operation See point Pulsating...

Страница 65: ...ssing the fan and its components or opening the inspection hatch In the case of fans that move hot fluids wait for the fan to cool down before carrying out maintenance operations so as to prevent contact with surfaces at high temperatures In the case of maintenance operations on rotating parts or parts inside ducts it is also necessary where present to disconnect the flexible motor coupling where ...

Страница 66: ...n supplied complete with transmission For version 1 fans shaft only without transmission consult Chart 8 2 for the correct lubrication interval Lubricate using the recommended type of grease or an equivalent type If the fan operates in a dusty damp hot or corrosive environment lubrication intervals must be reduced by approximately 40 or more with respect to the value indicated on the transmission ...

Страница 67: ...pport only partially Chart 8 1 Quantity of grease for first filling of supports and bearings on fans with transmission Bearings on motors up to the size of 160 are normally life long lubricated and therefore do not require lubrication Check and lubricate bearings at the intervals recommended by the motor manufacturer It is always advisable to periodically substitute bearings with replacements as i...

Страница 68: ...ntity grams 750 1060 1500 2120 3000 750 1060 1500 2120 3000 Relubrication intervals in hours Relubrication intervals in hours SN 507 B BL 22207 EK 4000 2500 1600 1000 670 6 22207 EK 4000 2500 1600 1000 670 6 SN 508 B BL 22208 EK 3750 2360 1500 950 600 7 22208 EK 3750 2360 1500 950 600 7 SN 509 B BL 22209 EK 3550 2250 1400 900 560 9 22209 EK 3550 2250 1400 900 560 9 SN 509 C CR CS 22209 EK 3550 225...

Страница 69: ...adial clearance on bearings Roller bearing Radial clearance reduction mm Minimum residual clearance after fitting mm Normal clearance C3 clearance 22209 EK from 0 025 to 0 030 0 020 0 030 22210 EK from 0 025 to 0 030 0 020 0 030 22212 EK from 0 030 to 0 040 0 025 0 035 22214 EK from 0 040 to 0 050 0 025 0 040 22215 EK from 0 040 to 0 050 0 025 0 040 22216 EK from 0 040 to 0 050 0 025 0 040 22218 E...

Страница 70: ... after fitting mm Normal clearance C3 clearance 2207 EK 70 0 30 0 010 0 020 2208 EK 70 0 30 0 010 0 020 2209 EK 80 0 35 0 015 0 025 2210 EK 80 0 35 0 015 0 025 2211 EK 75 0 40 0 015 0 030 2212 EK 75 0 40 0 015 0 030 2213 EK 80 0 40 0 015 0 030 2215 EK 85 0 45 0 020 0 040 2216 EK 85 0 45 0 020 0 040 2217 K 110 0 60 0 020 0 040 2218 K 110 0 60 0 020 0 040 values higher by an average of 15 20 for C3 ...

Страница 71: ... for distance between centres of 100 mm I distance between centres in mm Applying load P perpendicularly to the section Fig 8 3 the transmission must be tightened until the calculated deflection Le is reached Fig 8 3 Checking drive belt tension Profile Load on belt P N Diameter of smaller pulley d mm Deflection for distance between centres of 100 mm L SPZ 25 from 63 to 71 from 75 to 90 from 95 to ...

Страница 72: ... For higher temperatures special belts are necessary Dirty belts must not be cleaned with solvents like petrol benzene turpentine etc or with abrasive or sharp instruments It is advisable to use a solution of alcohol and glycerine in a proportion of 1 10 The transmissions installed on FVI fans have two or more drive belts In the case of breakage of one or more belts it is advisable to replace the ...

Страница 73: ...th EP2 Gulf Gulf crown grease 2 Esso Italia Shield 2500 Mobil Mobilux EP 11 Shell Italia Cardium Compound Texaco Starplex HD 2 Valvoline Val Lith EP 1030 2030 5 03 0 08 0 30 0 30 4500 0 04 1040 2040 5 36 0 08 0 33 0 30 4500 0 054 1050 2050 5 38 0 10 0 41 0 41 4500 0 073 1060 2060 6 55 0 13 0 46 0 41 4350 0 090 1070 2070 6 58 0 13 0 51 0 41 4125 0 110 1080 2080 7 32 0 15 0 61 0 41 3600 0 170 1090 2...

Страница 74: ...t they are undamaged and that no flexible components have become detached If these joints must be dismantled for maintenance of the system and or the fan they must be reassembled taking the precautions indicated for the first assembly installation see paragraph 5 5 8 8 Checking and cleaning parts in contact with fluids Periodic impeller cleaning makes it possible to avoid vibrations caused by any ...

Страница 75: ...16 24 33 33 5 ST 110 A B ST 110 AL BL 753 793 230 378 48 175 77 5 117 5 65 80 60 110 18x25 14x9 51 5 160 80 M16 24 34 34 6 ST 120 A B ST 120 AL BL 823 883 260 423 48 200 90 150 80 95 65 110 20x30 14x9 51 5 200 90 M16 26 53 54 ST 130 A B ST 130 AL BL 823 883 260 423 55 200 90 150 80 95 65 110 20x30 16x10 59 200 90 M20 26 54 55 3 ST 150 A B ST 150 AL BL 974 1034 290 470 65 210 112 172 90 105 80 140 ...

Страница 76: ...07 Z clearance C3 634 G 714 H ST 90 A38 6308 2RS1 6308 Z clearance C3 804 G 904 l 904 H ST 100 A 42 6309 2RS1 6309 Z clearance C3 1004 H 1004 K ST 110 A 48 6310 2RS1 6310 Z clearance C3 1124 G 1124 H ST 120 A 48 6311 2RS1 6311 Z clearance C3 1255 F 1254 H ST 130 A 55 6312 2RS1 6312 Z clearance C3 1406 E 1404 H ST 150 A 65 6314 2RS1 6314 Z clearance C3 1604 H ST 180 A 80 6317 2RS1 6317 Z clearance ...

Страница 77: ...ly interfere with dismantling and reassembly operations After carefully cleaning degreasing or lubricating according to use all components dismantled and reassembled 10 1 Fan impellers with steel hub CAUTION The impeller must be moved with care avoiding impacts that could alter its balance or deform it CAUTION For impellers with steel hub featuring cylindrical hole and without tapered bush mountin...

Страница 78: ...nd the motor shaft Photo 4 given that the hub hole and the external bush surface are tapered the smaller diameter is on the motor side the bush can be fitted only in one direction To make this operation easier widen the bush hole by inserting a suitable tool 7 into the bush slit Photo 5 Photo 4 6 7 4 5 3 2 ...

Страница 79: ...e impeller Photo 7 position the two UNTHREADED through holes of the disk over the threaded in the hub sleeve Use the two bolts provided hub fixing bolts 11 with the relative spring washers to fix the bush to the hub These bolts must be tightened alternately It is essential to tighten them until the tightening torque indicated in the Warnings and instructions for use manual is reached When this tig...

Страница 80: ...2 1 is reached Note that the 4 threaded holes on the disk are not used These holes are used only when the impeller is dismantled Photo 9 5 Check clearance between the impeller and the casing after assembly has been completed check that the impeller is correctly centred with respect to the casing If necessary move the motor or adjust the motor base When the impeller has been centred tighten all fix...

Страница 81: ... bolts of the hub just dismantled two additional identical bolts can also be used if available Screw these bolts alternately into the 4 threaded holes in the disk When these bolts are screwed in the impeller is pushed towards the motor detaching itself from the bush For this operation the central bolt impeller fixing bolt is still screwed in Photos 11 12 and 13 Photo 11 Photo 12 ...

Страница 82: ... 82 of 120 MVA 02 rev 5 December 2017 Photo 13 3 Secure the impeller with suitable lifting equipment Photo 14 Photo 14 ...

Страница 83: ...mber 2017 83 of 120 4 Unscrew the impeller fixing bolt and remove the disk Photos 15 and 16 Photo 15 Photo 16 5 Extract the bush Photo 17 to make this operation easier insert a suitable tool into the bush slit Photo 17 ...

Страница 84: ...talled power has not been exceeded by checking power absorption while running and consult the data on fan characteristics to assess the permitted variation This operation can be carried out with the impeller still fitted to the fan Without removing them slacken the four fixing bolts Fig 10 1 at the base of each blade Rotate the blade to alter its angle The original angle is shown on the blade by a...

Страница 85: ...oiding impacts that could alter its balance or deform it 10 2 1 Assembling impeller CAUTION The impeller hub may have a circumferential extraction groove Fig 10 2 or threaded extraction holes Fig 10 3 Fig 10 2 Hub with extraction groove Fig 10 3 Hub with threaded extraction holes Threaded extraction holes Extraction groove ...

Страница 86: ... motor shaft Photo 19 into the hole in the hub bush Photo 19 2 Find the correct angle of rotation that allows the stub on the shaft to fit into the slot in the sleeve Photo 20 and push the impeller until it fits fully onto the motor shaft The extraction groove on the hub or the threaded extraction holes must be on the side of the free end of the shaft Photos 21a and 21b Photo 20 Photo 21a Photo 21...

Страница 87: ...ole in the impeller sleeve and screw it onto the motor shaft Photo 22 Use the correct spanner to tighten the nut until the impeller fits into place resting against the stop on the motor shaft Photo 23 Photo 22 Photo 23 4 Unscrew and remove the threaded rod washer spacer and nut Photo 24 Photo 24 ...

Страница 88: ...the tightening torque indicated in Chart 12 1 is reached Photo 26 Photo 26 7 Turning the impeller by hand check that it is correctly centred with respect to the casing If necessary move the motor or adjust the motor base When the impeller has been centred tighten all fixing bolts of the base and the motor respecting the tightening torque values indicated in Chart 12 1 Photo 27 Photo 27 Fixing scre...

Страница 89: ...les partially unscrew the central fixing bolt Photo 28 3 Hub with circumferential extraction groove position the tip of the threaded rod of the extractor and hook the grips onto the extraction groove of the impeller hub Photo 29a Hub with threaded extraction holes screw the peripheral bolts into the threaded holes on the hub and rest the tip of threaded rod of the extractor on the head of the impe...

Страница 90: ... an increase in blade angle also produces higher power absorption by the fan CAUTION Check that the available installed power has not been exceeded by checking power absorption while running and consult the data on fan characteristics to assess the permitted variation To facilitate this operation the impeller must be removed from the shaft on which it is mounted see previous paragraphs 10 2 1 and ...

Страница 91: ...ixing nut Fig 10 4 Locking blades 10 3 Replacing drive belts 10 3 1 Assembling and dismantling pulleys 1 Check that the motor shaft and the transmission shaft are parallel 2 Before fitting the bush Photo 32 into the pulley carefully clean tapered parts and the bush hole Photo 32 ...

Страница 92: ...hreaded half holes on the bush Photo 32 There may be 2 or 3 of these holes Fig 10 5 as can also be seen in Chart 9 1 depending on pulley size Fig 10 5 Pulley holes 4 Screw in the grubscrews by hand without fully tightening them Photo 33 Photo 33 5 Check that the shaft surface is totally clean and insert the fixing spline into its slot Photo 34 Photo 34 ...

Страница 93: ...ponding slot in the bush hole If necessary widen the bush hole by inserting a suitable tool into the bush slit Photos 35 and 36 Photo 35 Photo 36 7 Always check that there is a minimum of clearance between the spline and the corresponding slot Photo 37 Photo 37 8 Repeat operations 2 to 7 to fit the pulley onto the transmission shaft Clearance ...

Страница 94: ...leys axially until the parallel misalignment has been corrected Photo 39 Photo 38 Photo 39 10 Adjust motor position to correct misalignment Figs 10 6 and 10 7 Fig 10 6 Angular misalignment Fig 10 7 Parallel misalignment 11 Tighten the pulley grubscrews alternately Photo 40 until the tightening torque indicated in Chart 10 1 is reached Photo 40 Variation Variation ...

Страница 95: ...sert one or two of them in the free holes screwing them in until the bush is detached Type Bush Grubscrews Length mm Max diameter mm N Whitworth Length mm Socket size Tightening torques N m 1008 25 20 22 3 35 2 1 4 13 3 5 5 1108 28 20 22 3 38 2 1 4 13 3 5 5 1210 30 25 25 4 47 2 3 8 16 5 20 1215 30 40 38 1 47 2 3 8 16 5 20 1310 35 25 25 4 52 2 3 8 16 5 20 1610 40 25 25 4 57 2 3 8 16 5 20 1615 40 40...

Страница 96: ...d not be used to force the belts into place on the pulleys Photos 41 42 and 43 If necessary reduce the distance between pulley centres by moving the motor closer Photo 41 Photo 42 Photo 43 2 Check belt tension For this operation see paragraph 8 4 of this manual 3 If the tension of belts is insufficient the motor must be moved to tension them correctly ...

Страница 97: ...e motor base and adjust the stays on the sides to move the motor Then tighten the motor fixing bolts again Photo 45 Photo 45 4 Check correct pulley alignment again 5 Fit the complete system of transmission protection devices CAUTION After the first 8 hours of operation stop the fan and check that pulley assembly screws are still fully tightened 6 To remove the drive belts repeat the previous opera...

Страница 98: ... according to the type of bearing fitted on the pulley side or the coupling side LP transmission side Photo 46 One piece support Type ST A support with rigid ball bearing on transmission side Fig 10 8 Type ST B support with rigid roller bearing on transmission side Fig 10 9 The side with the roller bearing is punched with CR on the shaft Both types of support are fitted with a ball bearing on the ...

Страница 99: ... the shaft can be extracted from both sides It is however advisable to always extract the shaft from the impeller side above all when you are not certain of the type of support to be dismantled The steps for support shaft dismantling are as follows 1 For supports with a cooling fan installed the cooling fan must first be dismantled Fig 10 10 Fig 10 10 Support with cooling fan Type ST B support Bal...

Страница 100: ... the fixing bolts and the cover on the impeller side Photo 48 Photo 48 4 Extract the shaft For Type ST A supports the last operation is to completely remove the shaft When this is done the two bearings both on the impeller side and on the transmission side are also extracted Photo 49 To dismantle the radial bearings from the shaft use an extractor Photo 49 ...

Страница 101: ...ing ring located in the support from the impeller side using suitable pliers Photo 51 Photo 51 6 Completely extract the shaft When this is done the ball bearing on the impeller side the spring locking ring that secures the ball bearing to the shaft the internal roller bearing ring on the transmission side and the spring locking ring that secures the roller bearing to the shaft if present are also ...

Страница 102: ...cover on the pulley side Photo 53 Photo 53 8 Extract remaining components casing rollers and external ring of the roller bearing Photo 54 Photo 54 9 Remove the spring locking ring located on the transmission side of the support using suitable pliers Photo 55 Photo 55 ...

Страница 103: ...ports 1 Fit the two ball bearings onto the transmission shaft from both sides Photo 56 Preheat the internal bearing rings to a temperature of about 70 C before carrying out this operation or use a press or a hammer Photo 56 2 Fully insert the shaft complete with the two bearings into the support Photo 57 Photo 57 3 Grease the bearings using the type of grease recommended in paragraph 8 1 filling t...

Страница 104: ...nsert the two VA sealing rings between the shaft and the support end covers Photo 59 Photo 59 10 4 2 2 Type ST B supports 1 Fit the grease sealing ring up to the stop on the shaft from the transmission side Photo 55 Take care to fit the grease sealing ring in the right direction Fig 10 9 and Photo 60 Photo 60 ...

Страница 105: ...d secure it axially using the spring locking ring Photo 62 Preheat the internal bearing ring to a temperature of about 70 C before carrying out this operation or use a press or a hammer Photo 62 4 Fit the internal ring of the roller bearing onto the shaft from the transmission side and secure it axially using the spring locking ring Photo 63 Preheat the internal bearing ring to a temperature of ab...

Страница 106: ...omponents fitted into the support The shaft must be fitted from the impeller side first inserting the end of the shaft with the internal ring of the roller bearing and the grease sealing ring Photo 65 Photo 65 7 Before completely inserting the shaft rest it in an intermediate position and fix the suspended spring locking ring in the recess on the impeller side of the support Photo 66 Photo 66 ...

Страница 107: ...e transmission side insert the remaining roller bearing components casing rollers and external ring Photo 68 Photo 68 10 Grease the bearings using the type of grease recommended in paragraph 8 1 filling the bearing completely but the free space of the housing only partially Photo 69 Photo 69 ...

Страница 108: ...108 of 120 MVA 02 rev 5 December 2017 11 Bolt on the covers at both ends of the support Photo 70 Photo 70 12 Insert the two VA sealing rings between the shaft and the support end covers Photo 71 Photo 71 ...

Страница 109: ...ampers are also made mainly from the same material Most of the accessories are also made from metals except for anti vibration joints constituted by two metallic flanges bolted together and separated by a textile joint in PVC or aluminiumized glass fibre Fan dismantling operations can be carried out either in the place of installation if the need for safe working conditions allows this or in some ...

Страница 110: ... EF ES EB EFR ESR EQ EK ET Aluminium Aluminium EF ES EB EFR ESR H o K Aluminium Steel Cast iron AF Steel Steel EP Plastic Aluminium Chart 11 1 Component materials of axial impellers 11 1 Version 4 axial fans Fig 11 1 Exploded view of version 4 fan With reference to Fig 11 1 the correct dismantling sequence for version 4 fans is as follows Guards 1 if present Intake 2 if present Impeller 3 paragrap...

Страница 111: ...version 9 fan With reference to Fig 11 2 the correct dismantling sequence for version 9 fans is as follows Guards 1 Intake 2 if present Transmission components 3 paragraph 10 3 Motor 4 Impeller 5 paragraphs 10 1 2 and 10 2 2 Support 6 and cooling fan if present paragraph 10 4 1 Seal if present ...

Страница 112: ...12 fan With reference to Fig 11 3 the correct dismantling sequence for version 12 fans is as follows Guards 1 Intake 2 if present Transmission components 3 paragraph 10 3 Motor 4 Base 5 Feet 6 Impeller 7 paragraphs 10 1 2 and 10 2 2 Support 8 and cooling fan if present paragraph 10 4 1 Seal if present ...

Страница 113: ...712 bolts with extra wide heads reduced by 10 for oiled galvanized bolts reduced by 20 for oiled phosphate treated bolts reduced by 10 if bolts are tightened with an impact wrench D x pitch mm Sr mm 8 8 10 9 12 9 A2 A4 70 A2 A4 80 M Nm M Nm M Nm M Nm M Nm 6 x 1 20 1 10 4 15 3 17 9 8 8 11 8 7 x 1 28 9 17 2 25 30 8 x 1 25 36 6 25 37 44 21 4 28 7 10 x 1 5 58 50 73 86 44 58 12 x 1 75 84 3 86 127 148 7...

Страница 114: ... bolts with 12 9 resistance class for aluminium blades on fans with steel hub Bolt Torque Nm Torque must be checked with a torque wrench Do not use galvanized nuts or bolts M8 30 M10 60 M12 80 M16 110 Chart 12 2 Tightening torques for blade fixing bolts on fans with steel hub ...

Страница 115: ...on manual OK Check the efficiency of any power switch installed for the electrical power supply to the motor and any auxiliary circuits e g heaters OK Check for absence of foreign bodies inside fan OK Check for presence of all nuts bolts and other fasteners envisaged OK Check tightness of nuts and bolts in accordance with Chart 12 1 impeller supports foundations transmission if present OK Check fo...

Страница 116: ...k for absence of dangerous vibrations See also paragraph 3 8 4 1 month 6 months 12 months 6 Check for absence of abnormal noise 1 month 6 months 12 months 7 Check for correct lubrication of motor bearings See paragraph 8 1 1 month 6 months 12 months 8 Check electrical operating parameters of motor and servomotors installed 1 month 6 months 12 months 9 Check perfect condition of all accessories ins...

Страница 117: ...ive 2009 125 EU Regulation EU 327 2011 must be calculated by carrying out a performance trial on the machine in conformity with the ISO 5801 standard The measurement must be made with an intake chamber following the layout below type e installation measurement with multi nozzle chamber pursuant to point 30 of the UNI EN ISO 5801 standard ...

Страница 118: ...32 66 74 75 couplings 6 7 10 13 27 32 45 48 54 55 59 67 75 76 100 111 117 118 anti vibration 27 48 111 flexible 10 13 45 54 67 118 flexible 6 7 55 59 75 76 117 covers 102 104 106 110 cycle 15 30 31 33 63 111 life cycle 15 31 33 111 diameter 51 52 73 81 88 directives 14 27 28 56 67 119 dismantling 5 80 83 93 98 101 111 112 113 114 ducts 4 6 14 16 17 18 21 22 27 30 35 49 59 65 76 duration 15 68 dust...

Страница 119: ... 33 34 35 41 48 49 60 61 62 65 66 68 74 75 77 99 118 paint paintwork 14 62 64 parts 9 13 17 28 29 31 32 33 49 51 52 53 54 62 65 80 85 88 lifting equipment 80 85 88 personal protective equipment PPE 28 34 41 42 48 49 54 76 108 play 6 7 51 52 71 72 74 83 95 positions 3 11 17 33 34 42 46 48 51 53 54 65 88 96 103 108 power supply 30 32 56 66 67 117 voltage 56 65 power 10 32 34 35 56 65 87 92 97 acoust...

Страница 120: ... 30 thickness 64 tightening torques 115 tightening 5 7 17 48 49 55 60 61 72 97 115 116 117 118 tools 17 81 86 95 98 transmission 4 5 7 10 13 15 27 29 32 33 35 52 53 54 55 60 61 67 68 69 73 74 78 79 93 95 97 99 100 101 102 103 104 105 106 107 108 109 111 113 114 117 118 transport 41 55 62 67 77 use 3 10 14 15 17 23 28 29 32 33 42 48 49 56 61 67 74 77 80 82 87 88 92 116 118 conditions of 32 improper...

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