KNECHT HV 205-1 User manual

HV 205-1
Status 08.2021 Version 1.0 | Translation
Operating Instructions
Circular Knife Grinding Attachment
HV 205-1 | HV 205-2
HV 205-2

3
Circular Knife Grinding Attachment HV 205-1 | HV 205-2
Manufacturer
KNECHT Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Telephone [phone]
Fax [phone]
[email protected]
www.knecht.eu
Documents for machine operator
Operating Instructions
Date of issue of the operating instructions
August 03, 2021
Copyright
The copyright for these operating instructions as well as other documents for the machine operator is held
by KNECHT Maschinenbau GmbH. They are provided only to customers and operators of our products and
are included with the machine.
These documents may neither be reproduced, nor made accessible to third parties, in particular rival firms,
without our express permission.
Operating Instructions

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1. Important notes 7
1.1 Preface to the operating instructions 7
1.2 Warnings and symbols in the operating instructions 7
1.3 Figure and item numbers in the operating instructions 8
2. Safety 9
2.1 Basic safety instructions 9
2.1.1 Observe notes in the operating instructions 9
2.1.2 Obligation on the part of the operator 9
2.1.3 Obligation on the part of the personnel 9
2.1.4 Hazards involved in handling the circular knife grinding attachment 9
2.1.5 Malfunctions 10
2.2 Intended use 10
2.3 Warranty and liability 10
2.4 Safety regulations 11
2.4.1 Organizational measures 11
2.4.2 Protective equipment 11
2.4.3 Informal safety measures 11
2.4.4 Selection and qualification of personnel 11
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 12
2.4.9 Servicing (maintenance, repair) and fault rectification 12
2.4.10 Structural alterations to the circular knife grinding attachment 13
2.4.11 Cleaning the circular knife grinding attachment 13
2.4.12 Lubricants/ oils and greases 13
2.4.13 Relocation of the grinding machine with circular knife grinding attachment 13
3. Description 14
3.1 Intended use 14
3.2 Technical specifications 14
3.2.1 HV 205-1 Circular Knife Grinding Attachment 14
3.2.2 HV 205-2 Circular Knife Grinding Attachment 15
3.3 Functional description 15
3.4 Description of the assemblies 16
3.4.1 HV 205-1 Circular Knife Grinding Attachment for circular knives, 80-250 mm 16
3.4.2 HV 205-2 Circular Knife Grinding Attachment for circular knives, 250-470 mm 17
4. Transport 18
4.1 Transport aids 18
Table of Contents

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4.2 Transport damage 18
4.3 Transport to another installation site 18
5. Installation 19
5.1 Selection of qualified personnel 19
5.2 Installation site 19
5.3 Settings 19
5.4 Initial start-up of the circular knife grinding attachment 19
6. Commissioning 20
6.1 Mounting the HV 205-1 | HV 205-2 circular knife grinding attachment 20
7. Operation 21
7.1 Grinding circular knives, 80- 250 mm, on the grinding wheel 21
7.1.1 Clamping circular knives 21
7.1.2 Positioning circular knives on the grinding wheel 22
7.1.3 Swiveling the circular knife grinding attachment 23
7.1.4 Setting the grinding angle 23
7.1.5 Grinding circular knives 24
7.1.6 Deburring circular knives 25
7.2 Grinding circular knives, 250- 470 mm, on the grinding wheel 26
7.2.1 Clamping circular knives 26
7.2.2 Positioning circular knives on the grinding wheel 27
7.2.3 Setting the grinding angle 28
7.2.4 Grinding circular knives 29
7.2.5 Deburring circular knives 30
8. Care and maintenance 31
8.1 Cleaning 31
8.1.1 Lubrication table 31
8.2 Maintenance plan (one-shift operation) 31
9. Disassembly and disposal 32
9.1 Disassembly 32
9.2 Disposal 32
Table of Contents

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10. Service, spare parts and accessories 33
10.1 Postal address 33
10.2 Service 33
10.3 Spare parts 33
10.4 Accessories 34
10.4.1 Abrasives used, etc. 34
11. Annex 35
11.1 EC Declaration of Conformity 35
Table of Contents

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1.1 Preface to the operating instructions
These operating instructions are intended to make it easy to learn how to use the circular knife
grinding attachment and to properly utilize its features.
These operating instructions contain important notes on how to operate the circular knife grind-
ing attachment safely, properly, and efficiently. Your attention helps to avoid hazards, reduce
repair costs and downtimes, and to increase the reliability and service life of the circular knife
grinding attachment.
The operating instructions must always be stored in the location that the circular knife grinding
attachment is used.
The operating instructions must be read and applied by every person tasked with working with
the circular knife grinding attachment, e.g.:
• transport, installation, 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 instructions
The operating instructions use the following symbols/designations that must be followed:
The hazard triangle with the signal word “CAUTION” serves as a work
safety notice for all work for which there is a risk of personal injury or
death.
In these cases, work should be done with special attention and care.
ATTENTION
”ATTENTION” is used to draw attention to particular points in order to
avoid damage to and/or destruction of the circular knife grinding attach-
ment or its environment.
NOTICE ”NOTICE” refers to user tips and especially useful information.
1. Important notes
CAUTION

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1.3 Figure and item numbers in the operating instructions
If the text makes a reference to a machine component depicted in a figure, the figure and item
number will be given in parentheses.
Example: (7-13/1) means figure number 7-13, item 1.
Mount the HV 205-2 circular knife grinding attachment
according to the instructions (see chapter 6).
Unscrew grinding lever SH 104 (7-13/1).
1. Important notes
Figure 7-13 HV 205-2 circular knife grinding
attachment
1

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2.1 Basic safety instructions
2.1.1 Observe notes in the operating instructions
The basic prerequisite for safe handling and uninterrupted operation of this circular knife grinding
attachment is knowledge of the basic safety instructions and regulations.
• These operating instructions contain important notes on how to operate the circular knife
grinding attachment safely.
• All persons carrying out work on the circular knife grinding attachment must follow these
operating instructions, in particular the safety notices.
• In addition, the rules and regulations regarding accident prevention at the place of use are to
be observed.
2.1.2 Obligation on the part of the operator
The operator is obliged to allow only those persons to work on the circular knife grinding
attachment, who
• are familiar with the basic occupational safety and accident prevention regulations and have
received instruction in handling the circular knife grinding attachment,
• have read and understood 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 circular knife grinding attachment shall be obliged, before starting
work, to
• observe basic occupational safety and accident prevention regulations,
• read the operating instructions, particularly the section entitled “Safety” and the warning notes,
and provide signed confirmation that they have understood them.
2.1.4 Hazards involved in handling the circular knife grinding attachment
The circular knife grinding attachment has been built to the latest technological standards and the
recognized rules of technical safety. In spite of this, its use poses inherent risks which could result
in bodily harm or even death of the user or third persons, or damage to the circular knife grinding
attachment or other property.
The circular knife grinding attachment may only be used
• for its intended purpose, and
2. Safety

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• in faultless condition with regard to safety-related aspects.
Malfunctions that may impair safety are to be eliminated immediately.
2.1.5 Malfunctions
If safety-relevant malfunctions occur with the circular knife grinding attachment, or if the pro-
cessing behavior indicates that such malfunctions may have occurred, the circular knife grinding
attachment must be stopped immediately and until such time as the malfunction has been found
and eliminated.
Allow only authorized trained personnel to eliminate the malfunctions.
2.2 Intended use
The circular knife grinding attachment is only for grinding circular knives from 80- 250 mm (HV
205-1) and 250-470 mm (HV 205-2). It is meant to be installed onto KNECHT grinding machines
of the S 200 series only.
All circular knives must be clamped onto corresponding holding fixtures. First, check whether the
holding fixture matches the knife to be ground. The knife can only be ground if this is 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 circular knife grinding attachment is
being used improperly if, for example
• it is installed onto grinding machines other
than the KNECHT S 200 series,
• the circular knife has been clamped
incorrectly,
• fixtures are not properly attached.
2.3 Warranty and liability
Warranty and liability claims in case of personal injury or property damage are excluded if such
damage is attributable to one or more of the following causes:
• improper use of the circular knife grinding attachment,
• improper transport, commissioning, operation, and maintenance of the circular knife grinding
attachment,
2. Safety

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• operating the circular knife grinding attachment with defective safety devices, or using
improperly attached or malfunctioning safety and protective equipment,
• failure to observe the instructions with regard to transportation, commissioning, operation,
maintenance and repair of the circular knife grinding attachment,
• unauthorized structural alterations to the circular knife grinding attachment,
• failure to monitor machine parts that are subject to wear, and
• use of unapproved replacement and wear parts.
Use only original replacement and wear parts. When using external parts, it cannot be guaranteed
that they are constructed and manufactured to be suitable and safe.
2.4 Safety regulations
2.4.1 Organizational measures
Inspect all available safety devices regularly.
Observe prescribed intervals for recurring maintenance work or as specified in the operating
instructions!
2.4.2 Protective equipment
Before commissioning the circular knife grinding attachment, always ensure that all protective
equipment is properly mounted and in functional condition.
Protective equipment may be removed only after the circular knife grinding attachment has
stopped and has been secured against accidental restart.
When delivering spare parts, the protective equipment must be attached by the operator as
stipulated.
2.4.3 Informal safety measures
The operating instructions must be permanently available at the place of use of the circular knife
grinding attachment. In addition to the operating instructions, the generally applicable as well as
locally relevant accident prevention regulations must also be made available and observed.
All safety and hazard warnings on the circular knife grinding attachment must be complete and
clearly legible.
2.4.4 Selection and qualification of personnel
Only trained and instructed personnel may work on the circular knife grinding attachment.
Observe the legally permitted minimum age!
2. Safety

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The responsibilities of personnel with respect to commissioning, operation, maintenance, and
repair must be clearly specified.
Personnel still undergoing training or instruction may only work on the circular knife grinding
attachment under the permanent supervision of an experienced person!
2.4.5 Machine control system
Only trained and instructed personnel are allowed to turn on and operate the machine.
2.4.6 Safety measures in normal operation
Do not operate the machine in any unsafe manner. Only operate the circular knife grinding
attachment if all safety devices are installed and fully functional.
At least once per shift (or per day), check the circular knife grinding attachment for externally
visible damage and proper functioning of the safety devices.
Immediately report any changes present (including those of the operating behavior) to the
responsible office or person. If necessary, immediately shut down the circular knife grinding
attachment and secure it against restart.
Before 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
restart. 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 with electrical regulations.
Defects, such as damaged cables, cable connections, etc. must be immediately rectified by
an authorized specialist.
2.4.8 Particular hazard areas
In the area of the grinding wheel, wet-grinding belt and finned brush, there is a hazard of
pinching and being drawn in, e.g. clothing, fingers and hair. Wear suitable personal protective
equipment.
2.4.9 Servicing (maintenance, repair) and fault rectification
Maintenance work is to be carried out on schedule by trained personnel. Inform operating
personnel before beginning repair work. Designate a supervisor responsible for this.
For all service work, the grinding machine is to be disconnected from the current supply and
secured against accidental restart.
2. Safety

13
Remove power plug. Cordon off the repair area as far as it is required.
After completing maintenance work and rectifying any faults, install all safety devices and verify
that they are fully functional.
2.4.10 Structural alterations to the circular knife grinding attachment
Modifications, retrofitting or rebuilds of the circular knife grinding attachment are not allowed
without 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.
Immediately replace any machine parts that are not in a serviceable state.
Use only original replacement and wear parts. When using external parts, it cannot be guaranteed
that they are constructed and manufactured to be suitable and safe.
2.4.11 Cleaning the circular knife grinding attachment
Properly handle any cleaning agents and materials used and dispose of them in an environmentally-
friendly manner.
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 with circular knife grinding attachment
Disconnect the grinding machine with circular knife grinding attachment from any external cur-
rent supply, even if slightly adjusting its position. Before restarting the grinding machine, properly
connect it to the current supply.
When loading or unloading, only use suspension devices and load suspension devices with
sufficient load-bearing capacity. Designate suitable lifting devices for the lifting process.
Ensure 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. See also
chapter 4 of the operating instructions for the S 200 Universal Wet-Sharpening Machine. When
recommissioning, do so only in accordance with the operating instructions.
2. Safety

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3. Description
3.1 Intended use
Circular knives are ground with the HV 205-1 and HV 205-2 circular knife grinding attachment.
The attachments are only used on KNECHT grinding machines of the S 200 model series.
3.2 Technical specifications
3.2.1 HV 205-1 Circular Knife Grinding Attachment
Height �������������������������������������������������������������� approx. 250 mm
Width ��������������������������������������������������������������� approx. 540 mm
Depth ��������������������������������������������������������������� approx. 400 mm
Weight ��������������������������������������������������������������� approx. 3,8 kg
Grinding range ������������������������������������������ for circular knives, 80- 250 mm
Figure 3-1 Dimensions in mm (HV 205-1 front view /top view)
approx. 250 mm
approx. 540 mm
approx. 400 mm
approx. 540 mm
approx. 250 mm
approx. 540 mm
approx. 400 mm
approx. 540 mm

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3. Description
3.2.2 HV 205-2 Circular Knife Grinding Attachment
Height �������������������������������������������������������������� approx. 370 mm
Width ��������������������������������������������������������������� approx. 660 mm
Depth ��������������������������������������������������������������� approx. 500 mm
Weight ������������������������������������������������������������������������ 7 kg
Grinding range ����������������������������������������� for circular knives, 250- 470 mm
3.3 Functional description
To grind circular knives (80- 250 mm), the HV 205-1 circular knife grinding attachment is
mounted on the S 200 grinding machine.
To grind circular knives (250- 470 mm), the HV 205-2 circular knife grinding attachment is
mounted on the S 200 grinding machine.
Circular knife grinding attachments can be used to grind precise angles with simple operation
and minimal effort. Circular knives with chipping on the cutting edge can be repaired here
without any problems.
Figure 3-2 Dimensions in mm (HV 205-2 front view /top view)
approx. 370 mm
approx. 500 mm
approx. 660 mm
approx. 660 mm
approx. 370 mm
approx. 500 mm
approx. 660 mm
approx. 660 mm

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3. Description
3.4 Description of the assemblies
3.4.1 HV 205-1 Circular Knife Grinding Attachment for circular knives, 80-250 mm
1 Hand wheel to set grinding angle
2 Grinding lever
3 Circular knife, 90 mm
4 Circular knife holding fixture
5 Grinding wheel with guard
Figure 3-3 HV 205-1 Circular Knife Grinding Attachment
2
4
5
1
3

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3. Description
3.4.2 HV 205-2 Circular Knife Grinding Attachment for circular knives, 250-470 mm
1 Hand wheel to set grinding angle
2 Blade guard
3 Circular knife, 430 mm
4 SH 104 grinding lever
5 Deburring unit
Figure 3-4 HV 205-2 Circular Knife Grinding Attachment
5
4
1
2
3

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4.1 Transport aids
To transport the circular knife grinding attachment, use only adequately dimensioned transportaids.
4.2 Transport damage
If damage is detected after unloading and/ or when accepting delivery, notify KNECHT Maschinen-
bau GmbH and the forwarding agent immediately. Promptly refer to an independent specialist as
needed.
Remove the packaging and shipping straps. Remove the shipping straps on the circular knife
grinding attachment. 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
chapter 3.2.1 and 3.2.2).
The circular knife grinding attachment must be secured properly during transport.
4. Transport
When transporting, observe the local applicable safety and accident
prevention regulations.
CAUTION

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5.1 Selection of qualified personnel
We recommend having installation work on the circular knife grinding
attachment carried out by trained KNECHT personnel.
We are not liable for any damage resulting from improper installation.
CAUTION
5.2 Installation site
When determining the installation site, bear in mind the space required for installation as well as
maintenance and repair work on the circular knife grinding attachment (see chapter 3.2.1 and
3.2.2).
5.3 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
circular knife grinding attachment and
grinding machine.
5.4 Initial start-up of the circular knife grinding attachment
Completely install and inspect the protective equipment before commissioning.
The circular knife grinding attachment is only suitable for attachment to KNECHT grinding
machines of the S 200 model series.
Have all protective equipment checked for proper functioning by
authorized trained personnel before commissioning the machine.
CAUTION
5. Installation

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6.1 Mounting the HV 205-1 | HV 205-2 circular knife grinding
attachment
Use an hexagon screwdriver, width across flats
6 mm, to loosen the M10 countersunk screw
(6-1/1) counterclockwise.
Pull off the swivel arm, mounted as standard, from
the side of the grinding machine.
From the right, insert the circular knife grinding
attachment (6-2/1) onto the grinding attachment
and secure it with the M10 countersunk screw
(6-1/1).
6. Commissioning
All work must be performed by authorized trained personnel.
Observe the locally applicable safety and accident prevention regulations.
There is a risk that hands, hair, and clothing may be pulled in while the
grinding machine is switched on.
Serious injury may result. Wear personal protective equipment.
CAUTION
Figure 6-1 Removing the swivel arm
Figure 6-2 Mounting the HV 205-1 | HV 205-2
circular knife grinding attachment
1
1

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Figure 7-1 HV 205-1 circular knife grinding
attachment
Figure 7-2 Placing the circular knife onto the
appropriate knife holding fixture
Figure 7-3 Clamping the circular knife
7.1 Grinding circular knives, 80 - 250 mm, on the grinding wheel
Mount the HV 205-1 circular knife grinding
attachment according to the instructions (see
chapter 6).
7.1.1 Clamping circular knives
Place the circular knife (7-2/1) onto the appropriate
knife holding fixture (7-2/2).
Swivel the circular knife grinding attachment
backwards.
Insert the knife holding fixture (7-3/1) with the
circular knife into the circular knife grinding
attachment (7-3/2), hold it, then secure with the
star handle (7-3/3).
7. Operation
1
2
1
3
2