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KNECHT S 200 BS, Operating Instructions Manual

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39

7. Operation 

Figure 7-17

 Changing the finned brush

7.14  Changing the finned brush

To change the finned brush, loosen the cap nuts 
(7-16/1) counter-clockwise using the flat wrench 
(SW 17) provided. 

Remove the polishing protection hood and clean it 
under running water.

Open the clamping nut (7-17/1) counter-clockwise 
using the flat wrench (SW 22) provided. Pull the 
used finned brush from the grinding spindle and 
replace it with a new one.

Then mount the complete guard again in reverse 
order.

Verify that all parts are functioning properly! 

ATTENTION

Only original finned brushes approved by 
Knecht Maschinenbau GmbH may be used.

Incorrect finned brushes can cause cutting 
tools to be deburred insufficiently and 
 damage the cutting edges.

 

Do not switch on the machine with the protection hood removed!

Serious injury may result!

CAUTION

Figure 7-16

 Loosening the cap nuts

1

1

1

Summary of Contents for S 200 BS

Page 1: ...Includes S 200 T S 200 BT Status 11 2021 Version 2 1 Translation Operating Instructions Universal Wet Sharpening Machine S 200 S S 200 BS ...

Page 2: ...r Operating Instructions Date of issue of the operating instructions November 9 2021 Copyright These operating instructions as well as the operating documents remain the copyright property of KNECHT Maschinenbau GmbH They are supplied only to customers and operators of our products and belong to the machine Without our express permission these documents may neither be duplicated nor made accessibl...

Page 3: ...ability 11 2 4 Safety regulations 12 2 4 1 Organizational measures 12 2 4 2 Protective equipment 12 2 4 3 Informal safety measures 12 2 4 4 Selection and qualification of personnel 12 2 4 5 Machine control system 13 2 4 6 Safety measures in normal operation 13 2 4 7 Hazards due to electrical power sources 13 2 4 8 Particular hazard areas 13 2 4 9 Servicing maintenance repair and fault rectificatio...

Page 4: ...4 1 Transport aids 24 4 2 Transport damage 24 4 3 Transport to another installation site 24 5 Installation 25 5 1 Selection of qualified personnel 25 5 2 Installation site 25 5 3 Supply connections 25 5 4 Settings 25 5 5 Initial start up of the grinding machine 26 6 Commissioning 27 7 Operation 28 7 1 General grinding fundamentals 28 7 2 Switching on the grinding machine 29 7 3 HV 207 Swivel arm o...

Page 5: ...tachment optional S 200 S S 200 T 41 8 Care and maintenance 42 8 1 Cleaning 42 8 1 1 Lubricant table 42 8 2 Maintenance plan one shift operation 42 9 Disassembly and disposal 43 9 1 Disassembly 43 9 2 Disposal 43 10 Service spare parts and accessories 44 10 1 Postal address 44 10 2 Service 44 10 3 Spare parts 44 10 4 Accessories 45 10 4 1 Abrasives used etc 45 11 Annex 46 11 1 EC Declaration of Co...

Page 6: ...stallation commissioning operation including error rectification during operation as well as servicing maintenance repair Recognized technical standards for safe and professional work must be observed in addition to these operating instructions and the binding accident prevention regulations applicable in the country of use and at the place of use 1 2 Warnings and symbols in the operating instruct...

Page 7: ...repair work on it CAUTION RISK OF INJURY FROM ABRASIVE PARTICLES mandatory sign on machine front Grinding polishing deburring and dressing gives rise to grinding particles which could enter the eyes Wearing protective goggles is mandatory when carrying out such work 1 3 2 General mandatory signs The following general mandatory signs must be followed CAUTION RISK OF INJURY FROM KNIFE Working with t...

Page 8: ...n parentheses Example 6 2 1 means figure number 6 2 position 1 Check the direction of rotation of the finned brush The direction arrow 6 2 1 indicates the direction of rotation of the wet grinding belt and finned brush If the finned brush is rotating in the right direction then the direction of rotation of the grinding wheel and of the wet grinding belt is also correct If the finned brush is rotat...

Page 9: ...stood the operating instructions in particular the section entitled Safety and the warning notes and have provided signed confirmation of this The safety awareness of the personnel at work will be monitored at regular intervals 2 1 3 Obligation on the part of the personnel All personnel working on the grinding machine shall be obliged before starting work to observe basic occupational safety and a...

Page 10: ...s the case Any other use is considered to be improper KNECHT Maschinenbau GmbH is not liable for any damage arising from this The user alone bears this risk Use as intended includes the observance of all the notes in the operating instructions ATTENTION The grinding machine is being used improperly if for example cutting tools that cannot be guided by hand are ground without a grinding plate fixtu...

Page 11: ...otective equipment Before every commissioning of the grinding machine ensure that all protective equipment is properly mounted and in functional condition Protective equipment may be removed only after the grinding machine has stopped and has been secured against accidental restart When attaching spare parts the protective equipment must be attached by the operator as stipulated 2 4 3 Informal saf...

Page 12: ...efore you switch on the grinding machine ensure that no one can be injured by the start up of the machine In the event of a malfunction immediately stop the grinding machine and secure it against re start Rectify malfunctions immediately 2 4 7 Hazards due to electrical power sources Work on electrical systems or operating materials may only be performed by a qualified electrician in accordance wit...

Page 13: ...nner Dispose of the wear parts and replacement parts in a safe and environmentally friendly manner 2 4 12 Lubricants oils and greases When using oils and greases follow the safety regulations applicable to the product Comply with the special regulations for the foodstuffs sector 2 4 13 Relocation of the grinding machine Disconnect the grinding machine from any external current supply even if adjus...

Page 14: ...ted emission sound pressure level 78 dB A at workplace LpA Speed of wet grinding belt finned brush 1700 rpm Speed of grinding wheel optional 420 rpm This information may change depending on the electrical current supply Two digit sound emission value according to EN ISO 4871 measurement uncertainty KpA 3 dB A Emission sound pressure level according to EN ISO 11201 A K24 cutter knife from KNECHT Ma...

Page 15: ...m Figure 3 1 Dimensions in mm S 200 S floor model CoG CoG 3 2 3 S 200 T S 200 BT table model Height version with grinding wheel approx 600 mm Width approx 900 mm Depth approx 1000 mm Space requirement W x D 1500 x 1500 mm Weight max 104 kg ...

Page 16: ... plates and must be ground on the grinding wheel as well as the wet grinding belt with corresponding fixtures The grinding angle on the grinding wheel can be steplessly adjusted The grinding angle on the wet grinding belt is adjusted with different spacer discs Knives can be deburred and polished on the finned brushes without the use of fixtures Figure 3 2 Dimensions in mm S 200 S table model CoG ...

Page 17: ... grinding wheel S 200 BT table model without grinding wheel KNECHT Maschinenbau GmbH also offers useful optional attachments that can be used as needed These fixtures are explained on the following pages 1 Finned brush 2 Control panel 3 HV 201 Dressing tool for grinding wheel chapter 3 4 9 4 HV 203 Universal grinding arm chapter 3 4 4 Figure 3 3 General view of grinding machine S 200 S floor model...

Page 18: ...t grinding belt 7 HV 262 Universal belt grinding unit chapter 3 4 6 8 Water tank floor model 9 Machine feet 3 4 1 Coolant dosing unit for wet grinding belt 1 Coolant dosing unit for wet grinding belt 2 Mount for HV 201 Dressing tool 3 4 2 Control panel 1 Coolant pump ON OFF 2 Grinding motor ON OFF 3 Description ...

Page 19: ...ngle 2 SP 107 grinding plate 3 Grinding lever 4 Universal grinding arm 5 Grinding wheel guard 3 4 5 HV 261 Belt grinding attachment optional all versions 1 Grinding lever 2 Function disc 3 Locking lever 4 Hand wheel for feeding the belt grinding attachment 5 Star handle Figure 3 6 HV 207 Swivel arm 2 1 Figure 3 7 HV 203 Universal grinding arm 4 2 5 1 3 Figure 3 8 HV 261 Belt grinding attachment 3 ...

Page 20: ...g attachment optional S 200 S S 200 T for circular knives 80 250 mm 1 Circular knife holding fixture 3 4 8 HV 205 2 Circular knife grinding attachment optional S 200 S S 200 T for circular knives 250 470 mm 1 Blade guard 2 Deburring unit 3 Description Figure 3 9 HV 262 Universal belt grinding unit Figure 3 10 HV 205 1 Circular knife grinding attachment Figure 3 11 HV 205 2 Circular knife grinding ...

Page 21: ...2 1 3 4 9 HV 201 Dressing tool S 200 S S 200 T 1 Adjusting nut 2 Dressing diamond 3 Mount for HV 201 dressing tool 3 4 10 Coolant unit S 200 S S 200 BS 1 Coolant pump 2 Water tank 3 4 11 EP 205 External coolant unit optional S 200 T S 200 BT 1 Coolant pump 2 Water tank Figure 3 13 Coolant unit 2 1 ...

Page 22: ...inding circular knives 80 250 mm HV 205 2 Circular knife grinding attachment for grinding circular knives 250 470 mm HV 201 Dressing tool for dressing the cup grinding wheel 2 Finned brushes all versions For deburring and polishing linear and sickle shaped cutter knives as well as hand knives 3 Wet grinding belt all versions Enables tapered and convex grinding Cutter knives are ground in correspon...

Page 23: ...ipping straps Remove the shipping straps on the grinding machine Dispose of packaging in an environment friendly manner 4 3 Transport to another installation site For transport to another installation site ensure that the space requirements are fulfilled see section 3 2 A permissible electrical connection must be provided at the new installation site The grinding machine must be firmly and securel...

Page 24: ...llation as well as maintenance and repair work on the grinding machine see section 3 2 5 3 Supply connections The grinding machine is provided ready to connect with the corresponding connection cable Ensure that the machine is correctly connected to the current supply CAUTION 5 4 Settings KNECHT Maschinenbau GmbH will configure the various components as well as the electrical system before deliver...

Page 25: ...rning the machine feet Align the machine using a spirit level Have an authorized electrician install the current supply on site Completely install and inspect the protective equipment before commissioning Have all protective equipment checked for proper functioning by authorized trained personnel before commissioning the machine CAUTION 5 Installation ...

Page 26: ...ing wheel and of the wet grinding belt is also correct If the direction is rotating in the wrong direction have the phase reversed by a qualified electrician ATTENTION If the direction of rotation is incorrect the grinding wheel finned brush and contact disc may come loose 6 Commissioning All work must be performed by authorized trained personnel Observe the locally applicable safety and accident ...

Page 27: ... life In practice however it seems that a cutting edge angle that is too small results in the cutting edge breaking off and thus becoming blunt The cutting edge angle is therefore between 25 and 35 For cutting edge angles below 15 the cutting edge is so unstable that it snaps with the smallest resistance For a cutting edge angle of more than 40 the cutting edge is stable but it loses sharpness ver...

Page 28: ...g transport devices intended for this purpose Protective gloves and safety shoes must be worn CAUTION To grind sickle shaped cutter knives mount the HV 207 Swivel arm 7 1 1 on the machine onto which the grinding plate is clamped with the knife The swivel arm can be used to grind precise angles with simple operation and minimal effort Cutter knives are pre ground here and reground as necessary NOTE...

Page 29: ...HV 261 Belt grinding unit 7 2 1 on the machine onto which the grinding plate is clamped with the knife The belt grinding unit can be used to grind precise angles with simple operation and minimal effort Cutter knives with normal wear are ground here Cutter knives pre ground on the grinding wheel receive their final grinding here NOTE More information on this can be found in the technical documenta...

Page 30: ...ust be worn CAUTION To grind linear and sickle shaped cutter knives mount the HV 203 Universal grinding arm 7 3 1 on the machine onto which the grinding plate is clamped with the knife The universal grinding arm can be used to grind precise angles with simple operation and minimal effort Cutter knives are pre ground here and reground as necessary NOTE More information on this can be found in the t...

Page 31: ...iversal belt grinding unit 7 4 1 on the machine onto which the grinding plate is clamped with the knife The universal belt grinding unit can be used to grind precise angles with simple operation and minimal effort Cutter knives with normal wear are ground here Cutter knives pre ground on the grinding wheel receive their final grinding here NOTE More information on this can be found in the technica...

Page 32: ...created on the knife during the grinding process is removed by the finned brush This will help the cutter knife retain its final sharpness Before deburring polishing briefly hold the polishing paste 7 5 1 against the running finned brush 7 5 2 To deburr and polish unclamp the cutter knife from the grinding device and guide it along the finned brush 7 6 1 at a steep angle Alternately polish the upp...

Page 33: ...belt not perpendicular Press the knife onto the grinding belt with your free hand The stronger the pressure the more convex the grind will be Pull both sides of the hand knife over the grinding belt alternately until a small burr is created over the entire cutting edge length Deburr and polish the knife on the finned brush 7 8 1 This will help the hand knife retain its final sharpness Gently remov...

Page 34: ...ne see chapter 7 2 and rotate the adjusting nut 7 10 1 clockwise until the dressing diamond 7 10 3 touches the grinding wheel Then move the dressing tool 7 10 2 slowly over the rotating grinding wheel 7 10 4 When the dressing diamond 7 10 3 has ground the face of the wheel until flat turn the adjusting nut 7 10 1 clockwise by 1 4th of a rotation and move the dressing tool over the rotating grind i...

Page 35: ...nt prevention regulations as well as instructions in the Safety and Important notes section of the operating instructions CAUTION There is a screw 7 12 1 in the center of the grinding wheel Loosen the screw 7 12 1 with the hexagon screwdriver provided SW 5 located in tool box and remove the grinding wheel Clean the contact surface of the grinding wheel on the clamping flange using a cloth The new ...

Page 36: ... supply is automatically disconnected The grinding belt is released by the belt relief mechanism Remove the used grinding belt Place the new grinding belt over the contact disc and guide pulley Ensure that the grinding belt passes under the water nozzle 7 14 1 Turn the grinding belt by hand and check to see if it is not grinding anywhere Then close the belt protection hood again completely ATTENTI...

Page 37: ...s off automatically 7 13 Adjusting the belt movement If the grinding belt is not running in the center of the contact disc it can be aligned with the belt adjustment 7 15 1 Turning the belt adjustment 7 15 1 counter clockwise makes the grinding belt run to the left Turning the belt adjustment 7 15 1 clockwise makes the grinding belt run to the right 7 Operation Figure 7 15 Belt adjustment 1 ...

Page 38: ...h SW 22 provided Pull the used finned brush from the grinding spindle and replace it with a new one Then mount the complete guard again in reverse order Verify that all parts are functioning properly ATTENTION Only original finned brushes approved by Knecht Maschinenbau GmbH may be used Incorrect finned brushes can cause cutting tools to be deburred insufficiently and damage the cutting edges Do n...

Page 39: ...ety shoes must be worn CAUTION To grind circular knives 80 250 mm mount the HV 205 1 Circular knife grinding attachment 7 18 1 on the machine Circular knives are clamped onto the knife holding fixture using the corresponding flanges NOTE More information on this can be found in the technical documentation for the HV 205 1 HV 205 2 Circular knife grinding attachment Figure 7 18 HV 205 1 Circular kn...

Page 40: ...es intended for this purpose Protective gloves and safety shoes must be worn CAUTION To grind circular knives 250 470 mm mount the HV 205 2 Circular knife grinding attachment 7 19 1 on the machine Circular knives are clamped onto the knife holding fixture using the corresponding flanges NOTE More information on this can be found in the technical documentation for the HV 205 1 HV 205 2 Circular kni...

Page 41: ...ch time the coolant is changed ATTENTION Do not spray the grinding machine with water Do not allow the finned brush to get wet 8 1 1 Lubricant table Lubrication work Interflon Würth SHELL EXXON Mobil Cleaning and care of machine parts Dry clean stainless steel Stainless steel care spray Risella 917 Marcol 82 Lubricate threads and sliding surfaces Fin Grease Multi purpose grease Gadus S2 Ronex MP 8...

Page 42: ...ucted by a qualified specialist 9 2 Disposal After the machine has reached the end of its service life it must be disposed of by a qualified specialist In exceptional situations and after consultation with KNECHT Maschinenbau GmbH the machine may be returned Operating materials e g grinding wheels grinding belts finned brushes etc must be disposed of correctly ...

Page 43: ...are parts If you need spare parts please use the spare parts list provided with the machine Please place your order using the format described below When ordering please always provide example Machine model S200S Machine number 10190168200T Designation of assembly deflection roller assembly Position number 1 Drawing number article number 013C 03 0000 Quantity 1 pc We are always happy to answer any...

Page 44: ...412A 44 0525 Installed on delivery 1250 x 60 240 412A 46 0526 Wet grinding belt compact grain 1250 x 60 180 412A 50 0180 Finned brush d 200 x 50 x d 17 412J 02 0510 Installed on delivery Polishing paste 1200 g 412R 01 0501 Included in delivery Dressing diamond 1 5 carat d 10 x 60 312A 01 2328 Installed on delivery ATTENTION Only original abrasives of KNECHT Maschinen bau GmbH can be used KNECHT Ma...

Page 45: ...l Wet Sharpening Machine Model designation S 200 Applicable conforming standards in particular DIN EN 12100 1 DIN EN 12100 2 DIN EN 60204 1 ISO 13857 DIN EN 349 Responsible for documentation Peter Heine B Eng Mechanical Engineering BA Tel 49 7527 928 15 p heine knecht eu Manufacturer KNECHT Maschinenbau GmbH Witschwender Straße 26 88368 Bergatreute Germany Technical documentation is available and ...

Page 46: ...KNECHT Maschinenbau GmbH Witschwender Straße 26 88368 Bergatreute Germany T 49 7527 928 0 F 49 7527 928 32 mail knecht eu www knecht eu ...

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