Operating Instructions

Transcription

1 Operating Instructions KLA 220 HV 53 Honing Machine for Circular Knives Status Version.2 Translation

2 Operating Instructions Honing Machine for Circular Knives KLA 220 HV 53 Manufacturer Knecht Maschinenbau GmbH Witschwender Straße Bergatreute Germany Phone Fax Documents for the machine operator Operating Instructions Date of issue of the operating instructions March, 207 Copyright The copyright for these operating instructions as well as other documents for the machine operator is held by Knecht Maschinenbau GmbH. These documents will be delivered only to our customers and to operators of our products and are a part of the machine. These documents may neither be reproduced, nor made accessible to third parties, including rival firms, without our express permission. 3

3 Table of Contents. Important notes 7. Foreword 7.2 Warnings and symbols in the operating instructions 7.3 Warning plates and their meaning 8.3. Warning and prohibition signs on / in the honing machine 8.4 Rating plate and machine serial number 9.5 Figure and item numbers in the operating instructions 9 2. Safety 0 2. Basic safety instructions Observe notes in the operating instructions Operator's duty Obligations on the part of the personnel Hazards associated with handling the honing machine Malfunctions 2.2 Use as intended 2.3 Warranty and Liability 2.4 Safety regulations Organizational measures Protective devices Informal safety measures Selection and qualifications of the personnel Machine control system Safety measures in normal operation Dangers due to electrical power Particular danger zones Servicing (maintenance, repair) and fault rectification Structural modifications of the honing machine Cleaning the honing machine Oils and greases Relocation of the honing machine 4 3. Description 5 3. Intended use Technical specifications Functional description Description of the assemblies Switch box HV 56 Dressing device Construction 20 4

4 Table of Contents 4. Transport 2 4. Transport aids Transport damage Transport to another installation site 2 5. Installation Selection of qualified personnel Installation site Supply connections Settings Initial commissioning of the grinding machine Commissioning Operation General principles of grinding technology Switching on the grinding machine Grinding of circular knives with d mm Single side grinding Grinding of circular knives with d mm Water tray Adjusting the grinding angle Dressing of grinding wheels Safety slides Changing the safety slides Care and maintenance Cleaning Lubrication Lubrication schedule and lubricant table Malfunctions Faults 39 5

5 Table of Contents 0. Disassembly and disposal Disassembly Disposal 40. Service, spare parts and accessories 4. Postal Address 4.2 Service 4.3 Spare parts 4.4 Accessories Abrasives used Appendix EC Declaration of Conformity 43 6

6 . Important notes. Foreword This operator's manual is meant to make it easier to get to know the honing machine and to use it properly for the intended purpose. The operating instructions contain important information on how to operate the honing machine safely, properly and cost-effectively. Observance of these instructions helps to avoid dangers, repair costs and downtimes, and increases the reliability and service life of the honing machine. The operating instructions must always be accessible at the place of use of the honing machine. The operating instructions must be read and used by all persons entrusted with working on the honing machine, e.g. those entrusted with Transport, installation, commissioning Operation, including troubleshooting in the process flow, as well as Servicing (maintenance, repair). In addition to the operating instructions and the binding accident prevention regulations applicable in the country and place of use of the machine, the generally acknowledged rules of technology with regard to safe and professional work practices are to be observed..2 Warnings and symbols in the operating instructions Heeding the following safety alert symbols / designations used in the operating instructions is absolutely necessary: The hazard triangle with the signal word CAUTION is used as a work safety indication for all work which could result in death or physical injury. Special care and caution must be taken when carrying out such jobs. CAUTION ATTENTION The signal word ATTENTION is used to call attention to hazards which could result in damage and / or destruction of the honing machine or its environment if special attention is not paid while carrying out particular jobs. NOTICE The signal word NOTE calls attention to tips on use and useful information. 7

7 . Important notes.3 Warning plates and their meaning.3. Warning and prohibition signs on / in the honing machine The following warnings and safety alert signs have been affixed to the honing machine: CAUTION! DANGEROUS ELECTRICAL VOLTAGE (warning notice on the switch box) On being connected to the voltage supply (3x 400 V), the honing machine becomes electrically live and touching its live parts directly could be life-threatening. Live machine parts may be opened only by authorized, trained personnel. The honing machine must be separated from the mains supply before carrying out servicing, maintenance and repair jobs on it. CAUTION! RISK OF INJURY FROM ABRASIVE PARTICLES (warning notice on the machine hood) Grinding, polishing, deburing and truing gives rise to abrasive particles which could enter the eyes. Wearing safety glasses is mandatory when carrying out such jobs. CAUTION! RISK OF INJURY FROM KNIFE (warning notice on the machine hood) Work on the honing machine involves sharpening of knives which could cause serious cut injuries due to their sharpness. Protective gloves must be worn when clamping and unclamping the knives. Be careful when transporting blades. Use the protective devices provided by the knife manufacturer. Wear protective gloves and apron. 8

8 . Important notes.4 Rating plate and machine serial number Maschinenbau GmbH Bergatreute Germany TYPE KLA 220 Bauj. 996 Masch.-Nr V 380 A 0,76 KW 0,24 Hz 50 Sch. Y The type plate is located on the rear panel of the machine. Figure - Rating plate The machine number is located on the rating plate and on the bottom left of the water tray. Figure -2 Machine serial number.5 Figure and item numbers in the operating instructions If the text refers to a machine component shown in a figure, then a figure or item number is added in brackets after the machine component. Example: (7-2/) denotes figure number 7-2, item. Place the circular knife with knife guard (7-2/) on the grinding device (7-2/2). Remove knife guard. 2 Figure 7-2 Placing the knife on the grinding device 9

9 2. Safety 2. Basic safety instructions 2.. Observe notes in the operating instructions The basic prerequisite for the safe handling and uninterrupted operation of this honing machine is knowledge of the basic safety instructions and regulations. These operating instructions contain important notes on how to operate the honing machine safely. All persons carrying out work on the honing machine must follow these operating instructions, in particular the safety notices. In addition, the accident prevention rules and regulations applicable at the place of use of the machine must also be observed Operator's duty The operator is obliged to allow only those persons to work on the honing machine, who are familiar with the basic occupational safety and accident prevention regulations and have been trained and instructed in the handling of the honing machine, have read the operating instructions, particularly the Safety section, and have read and understood the warning notes. They have given a signed confirmation of this in writing. It is also checked at regular intervals as to whether the worker is fulfilling his employee obligation to observe safety at work Obligations on the part of the personnel All the personnel working on the honing machine shall be obliged to observe the basic occupational safety and accident prevention regulations, read the operating instructions, particularly the Safety chapter, and the warning notes. They must provide signed confirmation of this in writing Hazards associated with handling the honing machine The honing machine has been built to the latest technological standards and the acknowledged rules of technical safety. In spite of that, its use presents inherent risks which could result in bodily harm or even death of the user or third persons, or impairment of the honing machine or other property. The honing machine may be used only: for the intended purpose, and in faultless condition with regard to safety-relevant aspects. 0

10 2. Safety Faults that could impair safety must be eliminated immediately Malfunctions If safety-relevant malfunctions occur in the honing machine, or if the processing behavior indicates that such malfunctions may have occurred, the honing machine must be stopped immediately and until such time as the malfunction has been found and eliminated. Allow only authorized technical staff to eliminate the malfunctions. 2.2 Use as intended The honing machine is only meant for sharpening of circular knives with a diameter of 60 to 475 mm. Before starting work on a circular knife, it must first be checked whether a suitable grinding device is present. Only then can the circular knife be clamped. Any other use is considered improper use. Knecht Maschinenbau GmbH assumes no liability for damages resulting from improper use. The user alone bears the risk in such cases. Use as intended includes the observance of all the instructions in the operating instructions. The honing machine is being used improperly, if, e.g., knives other than those mentioned above are ground. knives are ground on grinding devices that do not suit the knives. grinding devices are not fastened properly. 2.3 Warranty and Liability Warranty and liability claims in case of personal injuries or property damage are excluded if such damage is attributable to one or more of the following causes: improper use of the honing machine, improper transportation, commissioning, operation and maintenance of the honing machine, operating the honing machine with defective safety devices, or improperly attached or malfunctioning safety and protective equipment, ignoring the operating instructions with regard to transportation, commissioning, operation, maintenance and repair of the honing machine, unauthorized structural alterations to the honing machine,

11 2. Safety unauthorized modification, e.g. of the drive conditions (power and speed), and insufficient monitoring of machine parts that are exposed to wear use of unapproved replacement and wear parts Use only original replacement and wear parts. If parts are purchased from external suppliers, it cannot be guaranteed that they will be constructed and manufactured to withstand the stresses and provide the required level of safety. 2.4 Safety regulations 2.4. Organizational measures All the existent safety devices must be checked regularly. Observe prescribed intervals for recurring maintenance work or as specified in the operating instructions Protective devices Before commissioning the honing machine, it must be ensured that all protective equipment is properly mounted and in functional condition. Protective equipment may only be removed after the honing machine has stopped and has been secured against accidental restarting. If sub-components are supplied, the protective equipment must be correctly attached by the operator according to the instructions Informal safety measures The operating instructions must be permanently available at the place of use of the honing machine. In addition to the operating instructions, the generally applicable as well as the locally relevant accident prevention regulations must also be made available and observed. All the safety alert symbols and danger warnings on the honing machine must be complete and clearly legible Selection and qualifications of the personnel Only trained and instructed personnel may work on the honing machine. The minimum legal age for employment must be observed. The responsibilities of the personnel must be clearly assigned, i.e. commissioning, operation, maintenance and repair, etc. 2

12 2. Safety Personnel that is still in the training or instruction phase may only be allowed to work on the honing machine under the permanent supervision of an experienced person Machine control system Only trained and instructed personnel are allowed to switch on the machine Safety measures in normal operation Refrain from any method of working which may pose a risk to safety. Only operate the honing machine if all the safety devices are installed and fully functional. Check the honing machine for external signs of damage and correct operation of the safety devices at least once every shift. Report any changes (including operating behavior) immediately to the competent department / person. Where required, shut down the honing machine immediately and secure against restarting. Before switching on the honing machine, ensure that no one is exposed to any risk from start-up of the machine. If there are any functional faults, stop the honing machine immediately and secure against restarting. Have the faults eliminated immediately Dangers due to electrical power Work on electrical units or operating materials may only be performed by a qualified electrician in accordance with electrical rules. Defects, such as damaged cables, cable connections, etc., must be immediately rectified by an authorized electrician Particular danger zones In the area of the grinding wheels, there is a danger of pinching and being drawn in (e.g. clothing, fingers and hair). Suitable personal protective equipment must be worn. Risk of injury from rotating circular knife Servicing (maintenance, repair) and fault rectification Maintenance work is to be carried out on schedule by trained personnel. Inform operating personnel before starting repair work. The responsible supervisor must be named. For all service work, the honing machine is to be disconnected from the power supply and secured against accidental restarting. Pull out the mains plug. Cordon off the servicing area, as far as possible. 3

13 2. Safety After completion of the maintenance work and fault rectification, install all the safety devices and check whether they are fully functional Structural modifications of the honing machine Modifications, retrofitting or rebuilds of the honing machine are not allowed without the permission of the manufacturer. This also applies to the installation and adjustment of safety devices. No alterations may be carried out without prior written permission from Knecht Maschinenbau GmbH. Immediately replace machine parts which are not in perfect condition. Use only original replacement and wear parts. If parts are purchased from external suppliers, it cannot be guaranteed that they will be constructed and manufactured to withstand the stresses and provide the required level of safety Cleaning the honing machine Cleaning agents and materials used must be handled properly and disposed of in an environment-friendly manner. Ensure that wear and replacement parts are disposed of in a safe and environmentally friendly way Oils and greases When handling lubricants / oils and greases, follow the safety regulations for the product. Observe special instructions for the foodstuffs sector Relocation of the honing machine Even when moving the honing machine a short distance from its site, disconnect it from all external power supply sources. Before restarting the honing machine, connect it properly to the current supply. When loading or unloading, only use hoisting and load lifting equipment with sufficient load-bearing capacity. Appoint a qualified banksman (signaller) for the lifting process. No persons other than those entrusted with this work may be present in the loading and installation area. Only lift the honing machine correctly with a suspension device in accordance with the operating instructions (attachment points for load suspension devices, etc.). Only use suitable transport vehicles with sufficient load-bearing capacity. Attach the load securely. Use suitable attachment points. When putting in operation again, proceed only as instructed in the operating instructions. 4

14 3. Description 3. Intended use The KLA HV 53 honing machine sharpens circular knives with a diameter of 60 to 475 mm. 3.2 Technical specifications Height 750 mm Width 830 mm Depth 820 mm Space requirement (WxD) 000 x 200 mm Weight 76 kg Current supply* 3x 400 V Mains frequency* 50 Hz Output* 0.45 kw Power consumption* 0.53 kw Energy consumption*.52 A Back-up fuse 6 A Operating noise at grinding wheels 68 db (A) *) This data may vary depending on the electrical power supply. A circular knife with a diameter of 200 mm was sharpened. 5

15 3. Description Figure 3- Dimensions in mm 3.3 Functional description The KLA HV 53 honing machine can be used to clamp and sharpen circular knives with a diameter of 60 to 475 mm. The machine is equipped with devices for small knives d mm and big knives d mm. Single side grinds can be applied by tilting the grinding device. The honing angle can be adjusted between 0 and 40 by rotating the grinding wheels away from each other or towards each other. Grinding wheels that become untrue can be trued again with the dressing device.. 6

16 3. Description 3.4 Description of the assemblies Figure 3-2 General view of the honing machine Grinding device, d mm 2 HV 56 dressing device 3 Switch box 4 Grinding device, d mm 5 Clamping nut 6 Protective hood 7 Grinding wheels 8 Water tray 7

17 3. Description Work lamp 2 Height adjustment hand wheel 3 Fine feed hand wheel 4 Grinding arm 5 Clamping lever for changing the grinding device 6 Grip for lifting the grinding device 5 6 Figure 3-3 Side view Scale for swiveling 2 Scale for lateral shifting 3 Clamping lever for swivelling the grinding unit (on the backside of the machine) 3 2 Figure 3-4 Scale 3.4. Switch box 2 3 Control On button 2 Hone / Grind selector switch 3 Rotary knob for controlling the speed of the right grinding wheel (optional) 4 Emergency Stop button 4 Figure 3-5 Switch box 8

18 3. Description HV 56 Dressing device Dressing diamond Figure 3-6 HV 56 dressing device 9

19 3. Description 3.5 Construction Both grinding wheels are driven by one motor each. Force is transmitted via a V-belt on a worm gear. The left motor can be driven in both directions. The knife is driven by electric power. There are two circular knife grinding devices in two different sizes for knives with mm diameter and for knives with mm diameter respectively. Single side grinds can be applied by tilting the circular knife grinding device. The speed of the right grinding wheel can be steplessly adjusted according to the equipment. 20

20 4. Transport For transporting the machine, the locally applicable safety and accident prevention regulations must be observed. CAUTION Only transport the honing machine in upright position (with the machine feet facing downwards). 4. Transport aids Only use adequately dimensioned transport aids for transporting and setting up the honing machine. 4.2 Transport damage If damage is detected following unloading after acceptance of the delivery, inform Knecht Maschinenbau GmbH and the freight forwarder about it immediately. If required, consult an independent expert immediately. Remove the packaging and shipping straps. Remove the shipping straps on the honing machine. Dispose of the packaging in an environmentally friendly way. 4.3 Transport to another installation site For transport to another installation site, ensure that the space requirements are fulfilled (see Chapter 3.2). A reliable electrical connection must be provided at the new installation site. The honing machine must be stable and firmly placed. CAUTION Installations on the electrical system may only be performed by an authorized specialist or our customer service staff. Observe the locally applicable safety and accident prevention regulations. 2

21 5. Installation 5. Selection of qualified personnel It is advisable to have trained Knecht personnel perform the installation work on the honing machine. CAUTION We assume no liability for damage caused by improper installation. 5.2 Installation site When determining the installation site, bear in mind the space requirement for installation, maintenance and repair work on the honing machine (see Chapter 3.2). 5.3 Supply connections The honing machine is delivered ready for connection with the appropriate connection cable. Confirm that the machine is correctly connected to the current supply. CAUTION In the event of an incorrect connection, the grinding wheels can turn opposite to the specified direction of rotation. Incorrect direction of rotation can result in serious injuries. The prescribed direction of rotation must be observed (see Chapter 6). 5.4 Settings The various components and the electrics are adjusted by Knecht Maschinenbau GmbH before delivery. ATTENTION Unauthorized changes to set values are not permitted and may damage the honing machine. 22

22 5. Installation 5.5 Initial commissioning of the grinding machine Place the honing machine on a level table with a height of roughly 60 cm on the installation site. Have a qualified electrician on site install the current supply. Completely install and check the safety devices before commissioning Have all the safety devices checked for proper function by trained personnel before commissioning. CAUTION. 23

23 6. Commissioning All work on the machine may only be performed by trained personnel. CAUTION The locally applicable safety and accident prevention regulations must be observed. There is a risk of hands, hair and clothes getting caught in the honing machine while the machine is on. This can result in serious injuries. Personal protective equipment must be worn. Press the Control On button (3-5/). Turn the selector switch (3-5/2) on the switch box to Grind. The grinding wheels start rotating. Check the direction of rotation. The direction arrow (6-/) indicates the direction of rotation of the right grinding wheel. Figure 6- Direction of rotation After ensuring that the wheels are rotating in the prescribed direction, turn selector switch to 0. If the direction of rotation of the grinding wheel is incorrect, have the phase reversed by a qualified electrician. Fill the water tray to cm below the rim with water. The water tray is in working position, when the bow-type handle of the water tray is in vertical position and the grinding wheels are immersed in water. ATTENTION The grinding wheels must not come in contact with water in off position over long periods of time, since they become untrue otherwise. 24

24 7. Operation 7. General principles of grinding technology If a blade has become blunt, material must be removed from its surface to restore it to its original sharpness. For that, the knife in question is ground to produce its cutting edge. If, in the process, a burr appears on the blade, then the grinding process was successful and can be concluded. Now, before the final sharpness is achieved, the burr must be removed in a further step. This is done with a flap brush. As it is not only the sharp cutting edges but also the long service lives that define a blade, the cutting angle is another important indicator of a blade's performance. The smaller the cutting edge angle, the higher the theoretical service life. In practice, however, the cutting edge breaks off and is therefore no longer sharp when the cutting edge angle is too small. The cutting edge angles must therefore lie between 5 and 35. If the cutting edge angles are less than 5, the blade becomes so unstable that it breaks at the slightest resistance. If the cutting edge angle is greater than 35, the blade is extremely stable, but service life will not be as long. One more criterion for judging the properties of a cutting edge is the cutting edge profile. There are three different ground profiles: Tapered grinding Convex grinding Concave grinding Convex ground profiles can mostly be found on cutter blades and hand knives. Tapered and concave ground profiles are predominantly found on circular knives and blades. In general: Adhering to the profiles and the cutting edge angles specified by the manufacturer is required NOTICE Convex grinding is not possible with the KLA HV 53 Honing Machine for Circular Knives. 25

25 7. Operation 7.2 Switching on the grinding machine Press the Control On button (3-5/). Turn the selector switch (3-5/2) on the switch box to Grind. The grinding wheels start rotating. 7.3 Grinding of circular knives with d mm Never change the grinding device with clamped circular knife. Never dismantle the grinding device while the machine is on. CAUTION Take care while clamping the knife! Sharp knife edge! Danger of serious cut injuries! Wear protective gloves. 3 2 Mount suitable grinding device for d mm. Release the clamping lever (7-/). Tilt the grinding device (7-/2) horizontally to the right. Remove the clamping nut. Figure 7- Swiveling the grinding device to clamping position Place the circular knife with knife guard (7-2/) on the grinding device (7-2/2). Remove knife guard. 2 Figure 7-2 Placing the knife on the grinding device 26

26 7. Operation 2 3 Place holding flange (7-3/) and guard plate (7-3/2) and tighten with clamping nut (7-3/3). Swivel grinding device back to working position. Figure 7-3 Placing the guard plate Turn hand wheel (7-4/) until grinding arm (7-/3) is aligned horizontally. Figure 7-4 Adjusting the working height Adjust all four safety slides (7-5/) so that the distance between safety slides and the machine is max. 5 mm. To shift, loosen the star knobs. Figure 7-5 Adjusting the safety slides Danger of injury from rotating knife. The safety slides must be adjusted correctly. CAUTION Danger of serious cut injuries! 27

27 7. Operation Turn the Fine Feed hand wheel (7-6/) clockwise until the knife no longer touches the grinding wheel. Turn the selector switch (3-5/2) on the switch box to Grind. The grinding wheels start rotating. Figure 7-6 Turning the Fine Feed hand wheel clockwise Turn the hand wheel (7-6/) anti-clockwise until the knife touches the grinding wheels. Depending upon how far the hand wheel has been turned, the grinding pressure and thereby the material removal rate is raised or lowered. Take care while unclamping the knife! Sharp knife edge! Danger of serious cut injuries! CAUTION Wear protective gloves. NOTICE There are two different switch positions: Hone for low material removal rate Grind for high material removal rate ATTENTION For double side grinding, turn the rotary knob (3-5/3) clockwise all the way to the stop. After one minute, lift the grinding arm and check knife sharpness. Once the grinding process has ended, switch off the machine and swivel the grinding device horizontally to the right (see Figure 7-) and unclamp the knife. 28

28 7. Operation 7.3. Single side grinding For single side grinding, mount a steel plate instead of the right grinding wheel. For angle adjustment, use the right column of the angle scale (see Chapter 7.6). Alternatively, release the clamping lever (7-7/) and carefully swivel the grinding device until the desired angle has been achieved. Tighten the clamping lever (7-7/) back again. Figure 7-7 Swiveling the grinding device ATTENTION The swivel angle must be taken into account during grinding angle adjustment. 29

29 7. Operation 7.4 Grinding of circular knives with d mm Never change the grinding device with clamped circular knife. Never dismantle the grinding device while the machine is on. CAUTION Take care while clamping the knife! Sharp knife edge! Danger of serious cut injuries! Wear protective gloves. For grinding smaller circular knives, the grinding device for d mm must first be dismantled. To do that, turn the clamping lever (7-8/) clockwise all the way to the stop. Figure 7-8 Dismantling the grinding device 2 While holding the grinding device with the left hand, turn the clamping lever (7-8/2) counter-clockwise all the way to the stop. Remove the device and keep in a safe place. Take the grinding device for d mm (7-9/) from the holder on the switch box (3-2/) and place it on top. Tighten clamping levers (7-9/2) and (7-9/3) back again. 2 3 Figure 7-9 Dismantling the grinding device for d mm 30

30 7. Operation Open the knife guard (7-0/) Place knife (7-0/2) on the driven spur gear, center with the clamping nut (7-0/3) and tighten with the flange wrench (7-0/4). Close the knife guard (7-0/). Figure 7-0 Tightening the knife 2 Adjust the safety slides (7-/) so that the distance between safety slides and the machine is max. 5 mm, depending upon the size of the circular knife. To shift, loosen the star knobs (7-/2). Grinding activity is carried out as described in Chapter 7.3. Figure 7- Adjusting the safety slides Danger of injury from rotating knife. The safety slides must be adjusted correctly. CAUTION Be careful while unclamping the knife! Sharp knife edge! Danger of serious cut injuries! Wear protective gloves. ATTENTION Only use switch position Hone when using the grinding device for d mm. Damage to knife and gears may occur otherwise. 3

31 7. Operation 7.5 Water tray After completing the grinding work, fold down the water tray (7-2/), since the grinding wheels will otherwise become untrue through permanent contact with water. Figure 7-2 Water tray 32

32 7. Operation 7.6 Adjusting the grinding angle The grinding angle is adjusted using the star knob (7-3/) on the right side of the machine. 2 On the machine housing, there is a scale (7-3/2) on which the grinding angle is displayed. Since the grinding angle changes with increasing wear of the grinding wheels, it must be re-aligned every day or after every dressing process. Figure 7-3 Grinding Angle scale To adjust the grinding angle, turn the star knob (7-4/2) to rotate the grinding wheels away from each other until the scale arrow points to 0. Then tighten the star knob (7-4/) to lock the scale arrow in place. 2 Rotate the grinding wheels towards or away from each other until they are visibly touching each other (Figure 7-5). Figure 7-4 Locking the scale arrow in place wrong right wrong Figure 7-5 Adjusting the safety slides Then release the lock on the scale arrow (7-4/) and rotate the grinding wheels towards each other until the desired grinding angle is displayed on the scale. 33

33 7. Operation The angle scale has two columns: Column : For double side grinding, indicated by. This scale applies to all knives that are ground symmetrically on both sides. Column 2: For single side grinding, indicated by. This scale only applies if a steel plate is used on the right side. If a steel plate is not used, the grinding device must be tilted at the appropriate angle (see Chapter 7.3.). Figure 7-6 Angle scale 34

34 7. Operation 7.7 Dressing of grinding wheels Dressing gives rise to abrasive particles (small fragments of abrasive grit and dust) which could enter the eyes. CAUTION Wearing protective glasses is mandatory. If the safety slides on the protective hood have been removed, only switch on the machine when the dressing device is mounted. Danger of serious injuries! 2 Grinding wheels that have become untrue are made true again with the HV 56 (7-7/) dressing device. Figure 7-7 Dressing the grinding wheels To dress the wheel, the adjustable safety slides (7-8/) on the protective hood (3-2/6) must be removed and the grinding wheels must be rotated away from each other. The dressing device is fixed on the machine hood using the four star knobs (7-7/2). Switch on the machine and make the grinding wheel edges true again with the dressing stone. After the dressing process, mount the safety slides (7-8/) back on the protective hood. NOTICE The grinding angle must be re-aligned after dressing (see Chapter 7.6). 35

35 7. Operation 7.8 Safety slides Incorrect adjustment of the safety slides can result in hands, hair and clothes getting caught in the honing machine. CAUTION The safety slides (7-8/) must always be adjusted so that the maximum distance between the grinding wheels and the safety slides is 3 mm. Figure 7-8 Safety slides 36

36 7. Operation 7.9 Changing the safety slides Pull out the mains plug before changing the grinding wheel. Only switch on the machine with the protective hood on. CAUTION To change the safety slides, remove the water tray (3-2/8) and dismantle the protective hood (3-2/6). Then rotate the safety slides away from each other and loosen the flange screws (both screws have a right-hand thread). Finally, mount the protective hood back again. Figure 7-9 Changing the grinding wheels The grinding angle must be re-aligned after the new safety slides have been mounted (see Chapter 7.6). The safety slides must also be re-adjusted (see Chapter 7.8). 37

37 8. Care and maintenance CAUTION For all work on the honing machine, the locally applicable safety and accident prevention regulations as well as instructions in the Safety and Important notes section of the operating instructions must be observed. Use only original replacement and wear parts. If parts are purchased from external suppliers, it cannot be guaranteed that they will be constructed and manufactured to withstand the stresses and provide the required level of safety. 8. Cleaning Clean the machine each time after sharpening to prevent the swarf from drying, hence making it harder to remove. After cleaning, lightly grease the honing machine with non-corrosive oil. See also the explanations in the lubrication schedule, Chapter 8.3. The coolant must be changed and the container cleaned every week. 8.2 Lubrication All bearing points are equipped with water-tight, lubricated anti-friction bearings and are therefore maintenance-free. 8.3 Lubrication schedule and lubricant table Lubricating activity Interval OEST SHELL EXXON Mobil Grease machine parts after cleaning after each grinding operation Paraffinum Perliquidum 6L Shell Risella 97 Marcol 82 38

38 9. Malfunctions 9. Faults In the event of faults, kindly contact our customer service (Chapter ). 39

39 0. Disassembly and disposal 0. Disassembly All operating materials must be disposed of correctly. Secure moving parts against slipping. The disassembly must be carried out by a qualified specialist company. 0.2 Disposal At the end of the machine service life, it must be disposed of by a qualified specialist company. In exceptional cases and in agreement with Knecht Maschinenbau GmbH, the machine can be returned. Operating materials (e.g. grinding wheels, etc.) must also be disposed of correctly. 40

40 . Service, spare parts and accessories. Postal Address Knecht Maschinenbau GmbH Witschwender Straße Bergatreute Germany Phone Fax Service Service management: See postal address Spare parts If you need spare parts, please use the spare parts list provided with the machine. Please place your order as shown below. Please always include the following information: (Example) Machine type (KLA220 HV53) Machine serial number ( ) Assembly designation (Base plate) Designation of individual part (Distance plate) Item number (09) Drawing number ( ) Quantity ( pc.) Please feel free to contact us with any questions. 4

41 . Service, spare parts and accessories.4 Accessories.4. Abrasives used Name Dimension Grain Order number Remark Grinding wheel A, white d.50x0xd E Grinding wheel Rec. Ark. d.50x0xd F Grinding wheel, C45 steel d.50x0xd.25 42S Only right side Dressing diamond D26 d.5x375 42Q ATTENTION No other abrasives may be used without the approval of Knecht Maschinenbau GmbH. Knecht Maschinenbau GmbH accepts no liability if other abrasives are used. If you require grinding wheels or other accessories, please contact our sales staff, dealers, or Knecht Maschinenbau GmbH directly. Thank you for buying our product! 42

42 2. Appendix 2. EC Declaration of Conformity in accordance with the EC Directive 2006 / 42 / EC Machinery Directive 2006 / 42 / EC Electromagnetic Compatibility Directive 2004 / 08 / EC We hereby declare that the machine mentioned below fulfils the basic health and safety requirements of the relevant EC Directive by virtue of the machine's construction and design and the version placed by us on the market. This declaration becomes void if the machine is modified in any way without our consent. Designation of the machine: Honing Machine for Circular Knives Type designation: KLA 220 HV 53 Applicable harmonized standards, DIN EN ISO 200 in particular: DIN EN ISO 3850 DIN EN ISO 3857 DIN EN 328 DIN EN (VDE ): DIN EN (VDE ): DIN EN (VDE ): DIN EN 349 Responsible for the documentation: Manufacturer: Peter Heine (Dipl. Ing. Mechanical Engineering BA) Phone Knecht Maschinenbau GmbH Witschwender Straße Bergatreute Germany Complete technical documentation is available. The operating instructions document for the machine is available in its original version and in the native language of the user. Bergatreute, February 23, 207 Managing Director Place, date Signature Signatory details 43

43 Knecht Maschinenbau GmbH Witschwender Straße Bergatreute Germany Phone Fax