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Turn clamping lever (7-12/1) to “Closed” position.

The knife is now locked.

Swivel the grinding plate with the clamped knife 
forward onto the grinding wheel.

7.1.3  Positioning the knife on the grinding wheel

The cutting edge of the knife (7-13/1) must rest 
approximately on the center of the grinding 
wheel.

To do so, loosen the lower clamping lever (7-14/1) 
counterclockwise and move the entire grinding
unit until the cutting edge of the knife is approxi-
mately at the center of the grinding wheel (see 
Figure 7-13/1).

Retighten the lower clamping lever (7-14/1).

7.  Operating the HV 207

1

1

Figure 7-13

 Knife position on the grinding 

wheel

Figure 7-14

 Adjusting the knife to the center 

of the grinding wheel

Figure 7-12

 Locking the knife on the grinding 

plate

1

Summary of Contents for HV 207

Page 1: ...Status 03 2022 Version 1 0 Translation Operating Instructions Swivel Arm Belt Grinding Unit HV 207 HV 261...

Page 2: ...ns Date of issue of the operating instructions March 11 2022 Copyright These operating instructions as well as the operating documents remain the copyright property of KNECHT Maschinenbau GmbH They ar...

Page 3: ...onnel 12 2 4 5 Machine control system 12 2 4 6 Safety measures in normal operation 12 2 4 7 Hazards due to electrical power sources 12 2 4 8 Particular hazard areas 13 2 4 9 Servicing maintenance repa...

Page 4: ...ding wheel 30 7 1 4 Setting the grinding angle 31 7 1 5 Grinding sickle shaped cutter knives convex cutting edge 32 8 Commissioning HV 261 34 8 1 Swiveling the HV 261 Belt Grinding Unit into working p...

Page 5: ...aintenance plan one shift operation 45 11 Disassembly and disposal 46 11 1 Disassembly 46 11 2 Disposal 46 12 Service spare parts and accessories 47 12 1 Postal address 47 12 2 Service 47 12 3 Spare p...

Page 6: ...cluding troubleshooting in the work sequence as well as maintenance servicing repair Recognized technical standards for safe and professional work must be observed in addition to these operating instr...

Page 7: ...nce to a machine component illustrated in a picture the figure and position number will be given in brackets Example 7 11 1 means Figure number 7 11 position 1 Clamp the knife 7 11 1 onto the grinding...

Page 8: ...derstood 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...

Page 9: ...r mounting on the KNECHT grinding machines of the S 200 model series All knives must be clamped onto the corresponding holding fixtures for grinding First check whether the holding fixture matches the...

Page 10: ...well as use of non approved spare and wear parts Only use original spare and wear parts In the case of parts purchased from other manufacturers it cannot be guaranteed that they have been designed an...

Page 11: ...sonnel are permitted to switch on the machine 2 4 6 Safety measures in normal operation Do not operate the machine in any unsafe manner Only operate the grinding units if all safety devices are instal...

Page 12: ...thout the permission of the manufacturer This also applies for installation and configuration of the safety devices Any conversion work requires the written permission from KNECHT Maschinenbau GmbH Im...

Page 13: ...that only persons authorized to carry out this work are located where the machine is unloaded and installed Use only a suitable transport vehicle with sufficient carrying capacity Secure loads safely...

Page 14: ...grinding machines of the S 200 model series 3 2 HV 207 Technical specifications Height approx 110 mm Width approx 430 mm Depth approx 70 mm Weight approx 1 7 kg Maximum grinding radius 435 mm Minimum...

Page 15: ...accordingly 3 3 HV 207 Functional description The HV 207 Swivel Arm can be used to grind sickle shaped knives up to a grinding radius of 435 mm To grind the cutting tool is moved concentrically over...

Page 16: ...otatable mounting head for sickle shaped knives 4 Cup grinding wheel with guard 3 4 1 Mounting head for sickle shaped knives The rotatable mounting head 3 3 1 is used to grind sickle shaped knives on...

Page 17: ...sed when grinding sickle shaped knives with a grinding radius bigger than SR 200 mm on the HV 207 The spacer disc is placed on the locating bolt see chapter 7 1 1 Figure 7 3 Then the grinding plate is...

Page 18: ...sed to grind precise angles with simple operation and minimal effort The device is used on the KNECHT grinding machines of the S 200 model series 3 6 HV 261 Technical specifications Height approx 320...

Page 19: ...t Grinding Unit can be used to grind knives with sickle shaped cutting edges up to a grinding radius of 400 mm To grind the cutting tool is moved concentrically over the wet grinding belt The HV 261 g...

Page 20: ...tion of the assemblies 1 Grinding lever 2 Locking lever 3 Locking disc 4 Hand wheel 5 Locking disc star handle 6 Cutter knife 7 Grinding plate Figure 3 6 HV 261 Belt Grinding Unit general view 6 7 5 1...

Page 21: ...efer to an independent specialist as needed Remove the packaging and shipping straps Dispose of packaging in an environment friendly manner 4 3 Transport to another installation site For transport to...

Page 22: ...3 Settings KNECHT Maschinenbau GmbH will configure the various components before delivery ATTENTION Unauthorized changes to the preset values are not permitted and can damage the grinding units and g...

Page 23: ...t Place the HV 207 Swivel Arm 6 2 1 on the grind ing unit 6 2 2 from the right and secure it with the M10 countersunk screw 6 1 1 6 Commissioning HV 207 All work must be performed by authorized traine...

Page 24: ...eviate from the original contour Photos of the entire knife and the knife label are also helpful ATTENTION For grinding plates with a grinding radius SR 80 335 the mounting head is mounted on the fron...

Page 25: ...e the grinding plate 7 4 1 on the locating bolt 7 4 2 of the swivel arm NOTE If the grinding plate has several locating holes mount it so that the cutting segment at the knife tip is ground first 7 Op...

Page 26: ...r handle 7 5 1 onto the mounting head and tighten it Remove the M12 star handle 7 6 1 from the grinding plate Remove the spacer disk 7 7 1 from the grinding plate 7 Operating the HV 207 Figure 7 6 Rem...

Page 27: ...ew insert the grinding lever directly onto the locating bolt thread 7 9 1 and tighten it clock wise using the M12 star handle 7 9 2 NOTE If the grinding lever is screwed directly onto the locating bol...

Page 28: ...whether the grinding plate fits the knife to be ground Compare the inscription of the grinding plate with that of the knife The use of an unsuitable grinding plate can damage the knife and grinding p...

Page 29: ...nter of the grinding wheel To do so loosen the lower clamping lever 7 14 1 counterclockwise and move the entire grinding unit until the cutting edge of the knife is approxi mately at the center of the...

Page 30: ...upper clamping lever 7 15 1 by turn ing it counterclockwise Turn the hand wheel 7 16 1 until the pointer 7 16 2 shows the desired angle on the angle scale 7 16 3 Retighten the upper clamping lever 7 1...

Page 31: ...inding lever move the knife evenly over the grinding wheel with moderate force Grind until a small burr forms on the cutting edge Now reduce the grinding angle on the hand wheel 7 48 1 by 5 and grind...

Page 32: ...s the next cutting segment Grind all cutting segments as described below Adjust grinding angle see chapter 7 1 4 Grind cutter knives see chapter 7 1 5 Repeat process for each cutting segment The cutte...

Page 33: ...to the left until it touches both stop pins 8 2 1 8 Commissioning HV 261 All work must be performed by authorized trained personnel Observe the locally applicable safety and accident prevention regula...

Page 34: ...Figure 8 3 Locking the belt grinding unit 1 35 Tighten the clamping lever 8 3 1 clockwise 8 Commissioning HV 261...

Page 35: ...spacer disc 9 2 1 on the locating bolt 9 2 2 9 1 2 Mounting the grinding plate NOTE KNECHT produces a suitable grinding plate for each knife KNECHT requires as precise information as possible on the...

Page 36: ...9 4 1 clockwise onto the locating bolt and tighten it slightly so that the grinding plate can still be moved 9 1 3 Adjusting the swivel range of the grinding plate Swivel the grinding plate to the ri...

Page 37: ...scription of the grinding plate with that of the knife The use of an unsuitable grinding plate can damage the knife and grinding plate Swivel the grinding plate 9 6 1 back as far as it will go It is n...

Page 38: ...chanism NOTE The locking disc has several locking positions The first two positions are U shaped all subsequent positions are V shaped The two U shaped locking positions are used to adjust the knife o...

Page 39: ...to adjustment position To bring the belt grinding unit into the adjustment position press the locking lever 9 12 1 with your thumb and turn the hand wheel 9 12 2 with your remaining four fingers until...

Page 40: ...lockwise towards the grinding belt until the cutting edge of the cutting segment to be ground first touches the grinding belt slightly Tighten the star handle 9 14 1 clockwise 9 Operating the HV 261 F...

Page 41: ...ing belt with your remaining four fingers until grinding position 1 is reached 9 16 3 Release the locking lever 9 16 1 With sickle shaped cutter knives each cutting segment is ground separately 1 segm...

Page 42: ...pprox locking position 7 until the entire convex edge of the knife is ground The number of infeeds can be limited by the stop screw 9 19 1 in any position For better access to the stop screw 9 19 1 un...

Page 43: ...below Bring the HV 261 Belt Grinding Unit into adjustment position 0 see chapter 9 1 6 Grind cutter knives see chapter 9 1 7 Repeat process for each cutting segment 9 1 8 Deburring and polishing cutt...

Page 44: ...sted in the lubricant table for care chapter 10 1 1 10 1 1 Lubricant table Lubrication work Interflon W rth SHELL EXXON Mobil Cleaning and care of machine parts Dry Clean Stainless Steel Stainless ste...

Page 45: ...by a qualified specialist 11 2 Disposal After the machine has reached the end of its service life it must be disposed of by a qualified specialist The grinding units may be returned in exceptional sit...

Page 46: ...e knecht eu 12 3 Spare 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 prov...

Page 47: ...nation HV 207 Machine designation Belt Grinding Unit Model designation HV 261 Applicable conforming standards DIN EN 12100 1 in particular DIN EN 12100 2 DIN EN 60204 1 ISO 13857 DIN EN 349 Responsibl...

Page 48: ...KNECHT Maschinenbau GmbH Witschwender Stra e 26 88368 Bergatreute Germany T 49 7527 928 0 F 49 7527 928 32 mail knecht eu www knecht eu...

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