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Technical Data and Instruction Manual for

ViscoTwin 130- 3-A

For more help visit:

www.viscotwin.us/maintenanceandsupport/

- Torque values on drawing for all screws
- 13 Maintenance movies showing all maintenance steps
- electronic form of this manual
- etc.

CESSTEC, Inc.

| 345 E Tulare Ave, Unit E | Visalia, CA 93277 | USA

www.processtec.com | [email protected]

Phone: +1(559) 429-4227 | Fax +1(559) 429-4228

Содержание ViscoTwin 104 Series

Страница 1: ...in us maintenanceandsupport Torque values on drawing for all screws 13 Maintenance movies showing all maintenance steps electronic form of this manual etc PROCESSTEC Inc 345 E Tulare Ave Unit E Visalia CA 93277 USA www processtec com info processtec com Phone 1 559 429 4227 Fax 1 559 429 4228 ...

Страница 2: ...n 7 Maintenance and servicing 8 Disturbances and their elimination 9 Disassembly and assembly 10 Stocking of spare parts Appendix Torque Tabel CIP SIP Manual Cleaning Procedure Oil Change All rights also reproduction in the form of extracts thereof reserved All information is supplied without liability PROCESSTEC Inc 345 E Tulare Ave Unit E Visalia CA 93277 USA www processtec com info processtec c...

Страница 3: ...cal documentation ViscoTwin screw pump Type ViscoTwin 130 xx 3A Serial no __________ Configuration ______________________________________________________________________________________________ Content Created Specification Instruction manual Explosion drawings Tightening torques May 15 2015 Specification ...

Страница 4: ...echanical Seal Shaft sealing materials SIC SIC FKM C TC FKM Flushing of mechanical seal n a Pump housing material Stainless AISI 316L EN 1 4404 Process connection pump housing Tri clamp OD___ Process connection front port Tri clamp OD___ Suction port Front cover port Pump housing port Discharge port Pump housing port Front cover port Elastomer FKM Material bearing housing Cast iron Stainless Steel...

Страница 5: ...onent ID Drive description Three phase NEMA motor ___ hp washdown Norm NEMA Manufacturer Stainless Motors washdown Model Rated power ____ hp Phase 3 phase Frame Speed at rated frequency ______rpm Voltage 230 460 V Operating voltages 230 to 575 VAC Rated frequency 60 Hz Poles 2 4 6 8 Material surface Stainless AISI 304 EN 1 4301 Washdown Yes Premium efficiency Yes Mounting orientation Horizontal Ro...

Страница 6: ...___ in Shaft length _______ in Origin USA Base plate Base plate Stainless steel n a Intermediate flange No Support legs No Material Stainless steel Motor frame size NEMA Length 48 in Width 18 in Accessories Temperature control Manometer Sealing liquid reservoir Visalia CA USA May 15 2015 Copyright PROCESSTEC Inc 2015 ...

Страница 7: ...undisturbed operation 1 2 Qualified personnel The operating company has to instruct the operator by means of this Operating Manual The minimum age is 16 years An experienced person has to supervise young persons and apprentices during the work on the machine Only metal workers industrial mechanics or persons with comparable education may perform assembly maintenance initial commissioning and repai...

Страница 8: ...pump has live pressurized pressure retaining and rotating or moved machine parts and possibly hot surfaces during operation Potential consequences Severe or fatal injuries Principally perform any necessary work on the machine when the system is at a standstill Disconnect the electric drive from mains and secure against unauthorised and inadvertent activation Make sure prior to opening the pump tha...

Страница 9: ... the pump beyond the specified speed range The solids contents in the pumping medium must not exceed the specified limit values for grain size and proportion of solids Take appropriate measures to ensure that no foreign objects metal parts stones etc can get into the pump and possibly cause damage Do not use the stationary pump as shut off device 1 7 Operating Restrictions The screw pump is a posi...

Страница 10: ...dvertent and unauthorised reclosure 1 9 Specific safety notes on pumps with heating jacket The housing of these pumps is of double jacket design and has connections for heating medium flow The housing has been designed for 6 bar overpressure if no other internal pressure has been approved in the data sheet Use for the inlet and outlet connection of the heating circuit the connectors on the opposit...

Страница 11: ...p construction Only exemplary representation Decisive for the dimension is the dimensional drawing 3 A baseframe according to 3 A requirements as per drawing A 1 2 3 4 5 6 7 Drive Coupling with guard Gear ousing Bearing housing Pump casing Cover Pump foot Base plate Manual ViscoTwin 104 xx 3A ...

Страница 12: ...nd to the BfR German Federal Institute for Risk Assessment recommendations and the FDA guidelines respectively US Food and Drug Administration and the Regulation EC No 1935 2004 The pumps and pump units respectively are designed and built taking the health and safety requirements of the EC Machinery Directive into account with all requirements met either the EC Declaration of Conformity with CE ma...

Страница 13: ...g gear and load carrying equipment with sufficient load capacity Lift pumps with suitable load carrying equipment chains ropes properly acc to opposing pictures using hoisting gear The pictures used are example pictures Possible damage to property When transporting pump units consider that they can be very top heavy due to certain drive assemblies Never lift the whole unit using the lifting eye bo...

Страница 14: ... pressure and suction ports Drain water when using it as quench medium for shaft seal 1 Make sure that the storage room meets the following conditions frost protected and dry 2 Check the preservation regularly 3 3 Disposal Collect oil from gear unit and seals and dispose of acc to the local regulations 3 3 1 Final decomposition of the pump sorting Check parts for applicability as spare parts and o...

Страница 15: ...the casing or base plate predetermine the diameters of the screws or dowel anchors Normally mounting is done by screwed connection hexagon head screws dowel anchors In this context observe the following screw diameters and max torqueing values Screw diameter Max tightening torque M10 44 Nm M12 90 Nm M16 220 Nm The values apply for hexagon head bolts to DIN 931 B or EN 24014 of strength category 8 ...

Страница 16: ...t yourself at least by the dimensions of the pump flanges The pressure stated in the data sheet must not be exceeded Mind the delivery pressure stated in the data sheet with respect to the pipe line pressure resistivity Purge the piping system and the feeding devices and clean them from foreign objects Seal pipe connections for quench exclusively with a sealing tape Do not use liquid seals Liquid ...

Страница 17: ...aded connections with torques causing pipe clamping or declamping in the pump casing 4 4 2 Permissible forces and torques on the pump flanges and Nominal width F x y z N F tot N M x y z Nm M tot Nm 65 700 1000 310 450 100 840 1200 380 550 150 1190 1700 560 800 200 1540 2200 730 1050 4 5 Permissible pressure in the pump casing The permissible internal compressive stress is specified in the datashee...

Страница 18: ...ase current squirrel cage motor high stated on the type plate Provide emergency stop facilities to shut down the pump in the event of dangerous situations U1 L1 W2 Instruction H Operation and maintenance space requirements Allow for free space around the pump drawing to provide for maintenance work without removing the pump To simplify installation use fitting pieces and shut In addition plan free...

Страница 19: ...sing a hammer Use a pull on device or heat the coupling half to approx 90 C Remove rubber parts before and mount the coupling in hot condition The coupling halves must be aligned against each other When assembling the drive with the pump it is necessary to adjust a Maximum and minimum clearance b Angular offset and c Axial offset acc to the coupling manufacturer s specifications Enclosures 4 9 Mou...

Страница 20: ... quench vessel approx 1 2 m above the pump and the seal and vessel should be connected through tubes preferably made from stainless steel Other tubes or even hoses can also be used temperature and medium permitting The lines towards the seal inlet must be fastened in continuously falling way and the lines from the seal outlet back to the vessel must be fastened in a continuously rising way See Fig...

Страница 21: ...icularly at higher temperatures of up to 150 C Suitable for foodstuffs Distilled water Distilled water is a poor lubricant but cools very well The water boils at 90 100 C The water vaporises in continuous operation and has to be regularly refilled particularly at higher temperatures of up to 80 C Suitable for foodstuffs The following rules have to be kept when using water as a quench fluid Solid p...

Страница 22: ...the pump and manual cleaning of the component parts using the detergents required for that purpose hand cleaning By the so called C I P Cleaning Cleaning in Place or S I P Sterilisation in Place flushing using appropriate cleaning agents provided the cleaning method is permissible for this medium A clean in place treatment on the pump should be executed at the following times When the pump is firs...

Страница 23: ...ated steam 2 2 3 0 bare Warning Risk of injuries through rotating machine parts or from liquids escaping under pressure Potential consequences Severe or fatal injuries Do not perform any work with the pump running Disconnect the pump from mains and secure against inadvertent start up U lock Use safety gloves and goggles when using aggressive detergents 1 Connect pump to CIP cleaning system or swit...

Страница 24: ... check pump for contamination and foreign objects 2 Fully open pressure and suction side valves 3 Fill pump with medium to enable suction safely 4 Switch on drive 5 When initially operating the pump check to see whether it and the pipe lines are tight 5 3 Operation Warning Do not operate against closed shut off devices Bursting of the pipe line or downstream system components is possible Potential...

Страница 25: ... pump was deployed outdoors and the medium can freeze up due to atmospheric influences the pumping medium tends to settle cool or hardens through chemical reaction 6 3 Decommissioning Please observe following measures when decommissioning the unit or shutting it down for a longer period Clean the pump thoroughly Open the cover so that residual water can run out 6 4 Final decommissioning of the pum...

Страница 26: ... case of stronger leakage Coordinate with manufacturer Replace shaft sealing rings Chapter 9 Counter pressure system Quench system Operator Technical staff Check for leakage Refill counter pressure quench medium if necessary Check slip ring seal and replace counter pressure quench medium if quench medium is contaminated After the first 250 operating hours Gear housing Technical staff Check tighten...

Страница 27: ...oil level Check the oil level in the gear housing weekly Top up the gear oil if necessary 7 3 2 Topping up the gear oil 1 Switch off pump 2 Open locking screw 2233 on the upper side of the gear housing 3 Clean the locking screw thoroughly 4 Fill in gear oil until reaching maximum in the oil level gauge glass 5 Screw in the locking screw 7 3 3 Changing the gear oil 1 Switch off pump 2 Open locking ...

Страница 28: ... used e g Product Gear oil AVIA AVIAFOOD GEAR 220 Mobil Mobil DTE FM 220 7 5 Lubricating grease A lubricant to NSF H1 that is approved for the food industry is used at the factory during the installation of the pump components Use this or equivalent lubricant during assembly Product Lubricant Fuchs Lubritech Geralyn 2 7 6 Lubricants filling quantities Table 1 Quantity of lubricant for installation...

Страница 29: ...re or fatal injuries Do not perform any work with the pump running Disconnect system from mains and prevent unintentional restart reclosing Only qualified personnel may carry out work on the electric system Only let qualified personnel carry out pump disassembly 1 Shut down the pump 2 Shut the suction and pressure side valves 3 Let the pump cool 4 Drain the pump collect the flowing out pumping med...

Страница 30: ...fully eliminate clogging Screw spindles worn replace Trapped air in medium Check suction line medium supply and seals Seals defective Replace seals Pump does not suck wrong direction of rotation Correct direction of rotation observe directional arrow Spindles mounted incorrectly mount spindles correctly Suction line clogged clean Pump or filter clogged Clean pump filter Suction line draws air Seal...

Страница 31: ...parts Potential consequences Severe or fatal injuries The pump or parts of it may be very heavy and need to be moved using appropriate lifting gear 9 1 General notes on disassembly and assembly Always replace the removed gaskets O rings and shaft sealing rings after disassembly The numbers stated in the following figures are the F numbers of the spare parts list Please see the enclosed exploded dr...

Страница 32: ...e coupling element and keep it 3 Loosen the threaded pin in coupling part 2247 and pull it out from the pump shaft using a suitable puller Lift key 1183 Installation 4 Insert key into the drive shaft Slightly grease the drive shaft and slide the coupling onto the shaft Screw in the threaded pin and tighten it 5 Mount pump align it toward the drive see chapter 5 6 Insert both halves of the coupling...

Страница 33: ...since the gear housing has been fitted with cylindrical pins 2258 Carefully remove gasket 2198 Installation 4 Clean the sealing surfaces between bearing housing 1001 and gear housing 2172 5 Insert new gasket 2198 6 Insert gear housing 2172 into the cylindrical pins 2256 insert and tighten the cylinder head screws 2258 including washers 2187 Torque 20 Nm 7 Screw in and tighten the lower locking scr...

Страница 34: ...emoving and installing screw spindles Relieve existing counter pressure device drain quench fluid unscrew and remove connections Disassembly 1 Loosen and unscrew hexagonal screws 1016 and remove them with washers 1015 Remove pump housing 2 Loosen and unscrew spindle screws 2180 while holding drive shaft 1000 tight via locking hole using a tool steel mandrel carefully remove O rings 2104 3 Remove s...

Страница 35: ...st its spring 4 Tighten the spindle nut on the driving shaft long shaft while holding the shaft in place in the drive shaft with the steel mandrel inserted in the hole Torque 150 Nm 5 Tighten driven shaft spindle nut using torque of 150 Nm and block the shaft by inserting a wedge made from soft material aluminium or copper 6 Let pump housing 1033 slide into the dowel pins via the screw spindles in...

Страница 36: ...n in colours here Possible damage to property Wrong combination of the dowel pin arrangement and wrong direction of load rotation results in damage to the pump casing and spindles See the data sheet for correct arrangement of the dowel pins direction of rotation direction of flow and position of the housing nozzle Pos of housing nozzle TOP BOTTOM Rotating direction LEFT LEFT RIGHT RIGHT TOP BOTTOM...

Страница 37: ...ium will flow toward the cover nozzle in Forward flow direction and V Instruction H l The pump casing must be clean Screw spindles must also be meticulously clean shafts and hubs of the screw spindles factory uses hand spindles can be swapped but this will change the flow direction of the pump as well as reversal of drive rotation direction xample The medium will flow toward the cover nozzle in Fo...

Страница 38: ...40 located in the front section of the seal housing 7 Using circlip pliers grasp and remove the retaining rings 200 on the rear of the seal housing In addition remove spacers 190 backup rings 180 as well as wave rings 50 in backward direction 8 Finally remove drive disc 150 along with drive pins 210 from the seal housing Possible damage to property Equally clean the seal housing as well as the sha...

Страница 39: ...and the grooves they are positioned in the seal faces During pushing the gap between the stator 11 and the seal housing 1029 shall stay circular constant Therefore dimension A in the drawing showing the sealing cross section shall be controlled depth gauge A 33 3 0 3 mm ViscoTwin 130 25 2 0 3 mm ViscoTwin 104 8 When installing the screw spindles make sure that the O rings 130 are located to the fr...

Страница 40: ...g with the remaining seals 7 Remove the inboard stators 11 from the seal housing Remove O rings 140 located in the front section of the seal housing 8 Press out the shaft seals 2272 from seal housing 9 Using circlip pliers grasp and remove the retaining rings 200 on the rear of the seal housing In addition remove spacers 190 backup rings 180 as well as wave rings 50 in backward direction 10 Remove...

Страница 41: ...m torque 8 Press in shaft seals 2272 into seal housing 1029 9 Carefully slide the seal housing onto the shafts Position screws 2259 with washers 2260 and screw them into the pump casing Tighten the fitting screws 10 Nm torque 10 Carefully slide inboard stators 11 into the seal housing via the shaft The stator groove must engage with drive pins 210 of drive disc 150 see picture 11 Place inboard rot...

Страница 42: ...0 from the shafts This will also disassemble O rings 90 130 and 220 as well as drive pins 210 6 Loosen fitting screws 2259 and remove them along with washers 2260 7 Remove the seal housing via the shafts 8 Remove Inboard stators 11 on the front side from seal housing 1029 Remove O rings 140 9 Pull out outboard stators 12 from the seal housing via the rear side of the seal housing Remove O rings 14...

Страница 43: ...sing from the rear side The stator groove must engage with drive pins 210 of drive disc 150 Stators 12 are now held by O rings 70 The diagonal grooves in the stators 12 must show to the respective other shaft so that they form the passage to the quench channel see picture 6 Insert O rings 140 grease them into the front grooves of the seal housing now 7 Turn back the threaded pins 110 at stop rings...

Страница 44: ...of them should engage with drive pins 210 2 further grooves clear the way for the rinsing liquid These grooves must be exactly positioned above or below the rinsing ports There is only one correct position of these grooves The two other grooves remain free Possible damage to property Incorrectly adjusted flushing grooves will result in seal overheating and destruction during pump operation 12 Inse...

Страница 45: ...sert pump housing 1033 17 Screw in screws 1016 with washers1015 and tighten torque 150Nm 18 Set cover in place with O ring 2192 screw in screws 1041 and tighten them torque 150Nm 19 Connect quench chamber fill up fluid and vent the shaft seal Possible damage to property Observe correct seat of the O rings when moving the screw spindles toward the inboard rotor holders Slide the screw spindles toge...

Страница 46: ...gear wheels if the installation of new shafts screw spindles or a new basic setting of the pump is being intended Special tools Hook spanner for shaft nut steel mandrel for counter holding assembly press various mounting sleeves 1 Loosen hexagon screw 2177 of driven shaft 2171 and remove it incl washer 2178 2 Pull off gear wheel 2184 incl hub 2176 from the driven shaft 3 Loosen and remove shaft nu...

Страница 47: ...se 3 Likewise apply lubricating agent onto the shafts in the region of the bearing positions 4 Insert inner snap rings 1009 into the shafts Press inner sleeves of needle bearings 1003 onto the shafts using a pressure sleeve Slide on needle bearings Mount outer snap rings 1009 5 Place distance tube 1529 onto the shaft 6 Press 2 each angular ball bearings 2181 one after the other and individually on...

Страница 48: ...to the shafts on the drive side 13 Slide gear wheel 2183 onto the drive shaft screw in and tighten shaft nut 1526 torque 90 Nm 14 Slide gear wheel 2184 incl hub 2176 onto the driven shaft Observe mark Screw in and tighten screw 2177 incl washer 1570 and lock washer 2178 torque 80 Nm Possible damage to property Place a bronze or copper bar into gear teeth of the gear wheels when tightening screw 21...

Страница 49: ...heel on the hub until the holes of hub and tapped holes of the gear ring check Tapped hole is positioned roughly in the middle of the oblong hole Note the inclined position of the gear ring 4 Screw in cylinder head screws 2186 by hand 5 Place lock washer 2178 onto the driven shaft screw in and tighten hexagon screw 2177 incl spring ring 1570 Torque 80 Nm Possible damage to property Place a bronze ...

Страница 50: ...w turn the drive shaft into the opposite direction until the spindles jam 4 Mark this position on gear wheel hub 2176 too 5 Turn back the drive shaft by a half of this mark The screw spindles are freely moving now 6 Now tighten cylinder head screws 2186 crosswise in alternating fashion Tightening torque of the cylinder head screws 8 Nm Fig 9 11 Manual ViscoTwin 104 xx 3A ...

Страница 51: ...g 1111 2 4 Pump casing O ring 1088 1 2 Spindle nuts O ring 2194 4 8 Cover O ring 2192 1 2 Gear housing gasket 2198 1 1 Shaft seal set of O rings 2261 2 4 Gear ring 2249 1 2 Gear oil 1 L 2294 1 2 depending on pump model chosen see data sheet Possible damage to property Use only original ViscoTwin spare parts to avoid any adverse effects on the functionality of your pump 10 2 Ordering spare parts Wh...

Страница 52: ...2174 2246 2247 2249 2248 1473 2192 2259 2260 2204 2194 1010 2256 2172 2233 1541 2277 2275 1064 2274 2272 2279 2278 2280 2265 2277 2273 150 210 140 70 170 12 20 50 30 160 110 60 130 40 80 90 210 220 11 140 40 80 90 130 210 220 11 140 210 150 50 190 180 200 2 2 6 1 D i c h t u n g s s a t z B F W D R 2 2 6 1 O R i n g D i c h t u n g s s a t z B C 2 2 6 1 O R i n g D i c h t u n g s s a t z B F 1 3 ...

Страница 53: ...d Antrieb Spur gear drifty Engrenage flottante Einzelteilliste Parts list Pièces détachées P No Qty Benennung Description Description 2184 1 Stirnrad Abtrieb Spur gear propelled Engrenage actionnée 2186 8 Zylinderschraube Socket head cap screw Boulon à six pans creux 2187 8 Scheibe Washer Rondelle 2192 1 O Ring O ring O ring 2194 2 O Ring O ring O ring 2195 2 Passstift Dowel pin Goupille de serrag...

Страница 54: ...ng screw shaft seal housing Size M8 Torque 12 Nm 8 9 lb ft 2205 Pump head foot mounting screw Size M10 Torque 44 Nm 32 5 lb ft 2279 Drive mounting screw Size determined by drive Max tightening torque M10 44 Nm 32 5 lb ft M12 90 Nm 66 4 lb ft M16 220 Nm 162 3 lb ft Gear housing 2172 2258 Gear housing hex socket screw Size M8 Torque 20 Nm 14 8 lb ft 1008 Bearing cover hex socket screw Size M8 Torque...

Страница 55: ...ou can request a list of the tools with the measurements Tool Tool No Drawing number Pump model Item Number Material Pressure plate for needle roller bearing inner race T 10 T 19 T 20 1011 397 1011 398 1011 399 070 104 130 95534 95535 95536 1 4301 Receptacle plate installation shaft ball bearing T 12 T 33 T 34 1011 401 1011 402 1011 403 070 104 130 955537 95538 95539 1 4301 Installation pipe for b...

Страница 56: ...578 95579 95580 1 4301 Installation pipe for needle roller bearing outer ring T 11 T 31 T 32 1011 416 1011 417 1011 418 070 104 130 95553 95548 95551 1 4301 Installation pipe bearing housing shaft ring gasket T 15 T 27 T 28 1011 419 1011 420 1011 421 070 104 130 955547 95545 95546 3 1645 Spindle key without hexagon T 35 T 37 1010 823 1010 820 070 104 130 40706 40705 3 1645 Spindle key with hexagon...

Страница 57: ...95441 95442 1 4301 Shaft ring gasket assembly sleeve lip sealing T 6 T 7 T 8 1011 351 1011 354 1011 374 070 104 130 41446 41454 41500 1 4301 Spur gear wheel puller T 9 T 18 1010 648 1009 756 070 104 130 95434 95427 1 4301 Socket spanner for groove nut T 17 T 29 T 30 1011 405 1011 404 1009 215 070 104 130 95532 95533 W0803 1 4301 Shaft adjustment for keeping the shaft on the gearing T 39 T 40 T 41 ...

Страница 58: ...roller bearing T 42 T 44 T 45 1011 441 1011 444 1011 445 070 104 130 95561 1 4301 Sliding sleeve for inner race retaining ring needle roller bearing T 43 1011 446 070 95562 1 4301 Mounting sleeve for rotary shaft seal T 46 T 47 T 48 1011 782 1011 783 1011 784 070 104 130 95581 95582 95583 1 4301 Centering rod for gear housing T 49 T 50 T 51 1011 785 1011 786 1011 787 070 104 130 955584 955585 9558...

Страница 59: ...Instruction Manual ViscoTwin Appendix ViscoTwin 70_IM_May 2015 KD 01 2014 Appendix Page A 8 Appendix 2 Explosion drawings with index ViscoTwin 70 see following pages ...

Страница 60: ...imum steam temperature for elastomeric materials in FKM is 135 C If the equipment is installed in an aseptic processing system that is sterilized by heat and operated At a temperature of 250ºF 121ºC or higher 3 A Standard 02 11 requires that the system monitors Internal pressure and shuts the system automatically down if the product pressure in the system Becomes less that atmospheric The system s...

Страница 61: ...rwise the affected parts must be replaced If contamination on the mechanical seal outside the medium sector is detected after 500 cleaning cycles or one year at the latest all component parts of the mechanical seal are to be thoroughly cleaned and disinfected in an alcohol bath Replace all O rings of the Inboard Rotor Holder O ring 90 130 140 and 220 _see Parts List Subsequently no corrosion or se...

Страница 62: ...FDA compliant detergent Spin the shafts to clean the impellers from all sides Rinse with clear water 4 4 Swab Test 4 4 1 Safety is first DISCONNECT THE PUMP FROM THE POWER 4 4 2 Disconnect piping from pump housing 4 4 3 Remove the 4 hexagon screws Pos 1016 on explosion drawing 4 4 4 Remove pump housing carefully 4 4 5 Take swab sample as per Lab Instruction of food safety instructions This procedu...

Страница 63: ... 7 3 Fill pump with medium to enable suction safely 4 5 7 4 Switch on drive 4 6 When initially operating the pump check to see whether it and the pipe lines are tight Operation Warning Do not operate against closed shut off devices Bursting of the pipe line or downstream system components is possible Potential consequences Severe or fatal injuries Secure the pump through an approved overpressure p...

Страница 64: ...er point 12 2 turn pump off wait 3 min to cool down the oil to show the actual level in the sight glass of the level gauge 12 5 Oil changes Oil changes have to take place every 3000 hours of operation In case the oil shows color changes oil has to be changed immediately and the change rhythm has to be adjusted based on the need through excessive use of the pump General recommendation Please put th...

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