KNECHT HV 150 User manual

Status 01.2024 Version 2.1 | Translation
Operating Instructions
Hand Knife Grinding Attachment
HV 150

Operating Instructions
3
Hand Knife Grinding Attachment HV 150
Manufacturer
KNECHT Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Phone [phone]
Fax [phone]
[email protected]
www.knecht.eu
Documents for machine operator
Operating Instructions
Date of issue of the operating instructions
January 22, 2024
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 accessible to third
parties, in particular competitor companies.

4
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 sharpening machine 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 grinding attachment 13
2.4.11 Cleaning the grinding attachment 13
2.4.12 Lubricants/oils and greases 13
2.4.13 Relocation of the sharpening machine with grinding attachments 13
3. Description 14
3.1 Intended use 14
3.2 Technical specifications 14
3.3 Functional description 14
3.4 Description of assemblies 15
4. Transport 16
4.1 Transport aids 16
4.2 Transport damage 16
4.3 Transport to another installation site 16
Table of Contents

5
Table of Contents
5. Installation 17
5.1 Selection of qualified personnel 17
5.2 Installation site 17
5.3 Settings 17
5.4 Initial start-up of the grinding attachment 17
6. Commissioning 18
6.1 Fitting the HV150 Hand Knife Grinding Attachment 18
6.1.1 Fitting CBN grinding wheels 18
6.1.2 Fitting the HV150 Hand Knife Grinding Attachment 22
6.1.3 Aligning the HV150 Hand Knife Grinding Attachment 23
7. Operation 25
7.1 Sharpening hand knives 25
7.1.1 Switching on the sharpening machine 25
7.1.2 Coolant regulation 25
7.1.3 Sharpening the hand knife 26
7.1.4 Deburring and polishing the hand knife 27
7.2 Changing CBN grinding wheels 28
8. Care and maintenance 30
8.1 Cleaning 30
8.1.1 Cleaning agent and lubricant table 30
8.2 Maintenance plan (one-shift operation) 30
9. Disassembly and disposal 31
9.1 Disassembly 31
9.2 Disposal 31
10. Service, spare parts and accessories 32
10.1 Postal address 32
10.2 Service 32
10.3 Wear and spare parts 32
10.4 Accessories 33
10.4.1 Abrasives used 33

6
11. Appendix 34
11.1 EU Declaration of Conformity 34
Table of Contents

CAUTION
7
1.1 Preface to the operating instructions
These operating instructions are intended to make it easy to learn how to use the HV150 Hand
Knife Grinding Attachment, hereafter referred to as grinding attachment and to properly utilize its
features.
These operating instructions contain important notes on how to operate the grinding attachment
safely, properly and efficiently. Observing these instructions helps to avoid hazards, reduce repair
costs and downtimes and to increase the reliability and service life of the grinding attachment.
The operating instructions must always be stored in the location that the grinding attachment is
used.
The operating instructions must be read and applied by every person tasked with working with
the 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 written in places where special attention must be paid to
prevent damage or destruction of the grinding machine or its surroundings.
NOTE “NOTICE” refers to user tips and especially useful informations.
1. Important notes

8
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
position number will be given in brackets.
Example: (6-9/1) means picture number 6-9, position 1.
Move the second CBN grinding wheel (6-9/1) onto the
grinding spindle up to the intermediate flange (6-8/1).
Figure 6-9 Mounting the second CBN grinding
wheel
1. Important notes
1

9
2.1 Basic safety instructions
2.1.1 Observe notes in the operating instructions
The basic prerequisite for the safe handling and uninterrupted operation of this grinding
attachment is knowledge of the basic safety instructions and regulations.
• These operating instructions contain important notes on how to operate the grinding
attachment safely.
• All persons carrying out work on the 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 grinding attachment, who
• are familiar with the occupational safety and accident prevention regulations and have received
instruction in handling the 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 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 sharpening machine
The 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 sharpening machine or other
property.
The grinding attachment may be used only
• for its intended purpose
• in a safe and secure condition.
Malfunctions that may impair safety are to be eliminated immediately.
2. Safety

10
2.1.5 Malfunctions
If safety-relevant malfunctions occur with the grinding attachment, or if the processing behavior
indicates that such malfunctions may have occurred, the sharpening machine 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 grinding attachment is exclusively suitable for sharpening hand knives.
Any other use or use beyond this is not considered as intended. KNECHT Maschinenbau GmbH is
not liable for any damage resulting from this. The risk is borne solely the user.
Intended use also includes observing all instructions in the operating manual.
ATTENTION The grinding machine and the HV150 Hand
Knife Grinding Attachment are not being
used as intended if, for example:
• Devices are not properly fastened.
• Knives are sharpened/polished against the
cutting edge on the wet-grinding belt and
the polishing disk.
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 grinding attachment,
• improper transport, commissioning, operation and maintenance of the grinding attachment,
• operating the 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 grinding attachment,
• unauthorized structural alterations to the grinding attachment,
• unauthorized modification, e.g. of the drive conditions (output and speed),
• failure to monitor machine parts that are subject to wear, and
• use of unapproved replacement and wear parts.
2. Safety

11
Use only original replacement and wear parts. If externally purchased parts are used, it is not
guaranteed that they have been designed and manufactured to meet the requirements in terms
of stress and safety.
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 every commissioning of the grinding attachment, ensure that all protective equipment is
properly mounted and in functional condition.
Protective equipment may be removed only after the sharpening 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 safety measures
The operating instructions must be permanently available at the place of use of the 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 alert symbols and hazard warnings on the sharpening machine must be complete and
clearly legible.
2.4.4 Selection and qualification of personnel
Only trained and instructed personnel may work on the grinding attachment. Observe the legally
permitted minimum age!
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 grinding attachment
under the permanent supervision of an experienced person!
2. Safety

12
2.4.5 Machine control system
Only trained and instructed personnel are permitted to switch 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 grinding attachment if all
the safety devices are installed and fully functional.
At least once per shift (or per day), check the 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 sharpening machine and
secure it against restart.
Before you switch on the sharpening machine, ensure that no one can be injured by the start-up
of the machine.
In the event of a malfunction, immediately stop the sharpening 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 wheels there is a hazard of pinching and of drawing in e.g. clothing,
fingers and hair. Suitable personal protective equipment must be worn.
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 sharpening machine is to be disconnected from the current supply and
secured against accidental restart.
Remove power plug. Secure repair area as necessary.
After completing maintenance work and rectifying any faults, install all safety devices and verify
that they are fully functional.
2. Safety

13
2.4.10 Structural alterations to the grinding attachment
Do not make any changes, additions or conversions to the grinding attachment without the
approval of the manufacturer. This also applies to the installation and setup of safety devices.
Any conversion work requires the written permission from KNECHT Maschinenbau GmbH.
Immediately replace machine parts that are not in perfect condition.
Use only original replacement and wear parts. If externally purchased parts are used, it is not
guaranteed that they have been designed and manufactured to meet the requirements in terms
of stress and safety.
2.4.11 Cleaning the 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 food areas.
2.4.13 Relocation of the sharpening machine with grinding attachments
Disconnect the sharpening machine from any external power supply, even in the event of a minor
change of location. Before restarting the sharpening machine, connect it properly to the power
supply.
For loading work, use only lifting equipment and load-bearing devices with sufficient lifting
capacity. Appoint a qualified instructor for the lifting operation.
No persons other than those designated for this work may be present in the loading and
installation area.
Only use a suitable transport vehicle with sufficient load-bearing capacity. Secure the load
reliably. See also the operating instructions for the USK160S Universal Wet-Sharpening Machine
(Chapter 4. Transport).
When restarting the machine, proceed only in accordance with the operating instructions.
2. Safety

130 mm
360 mm
90 mm
130 mm
360 mm
90 mm
14
3.1 Intended use
The HV150 Hand Knife Grinding Attachment is used to sharpen hand knives. The device is used
on the KNECHT sharpening machines of the USK160 S model series.
3.2 Technical specifications
Height �������������������������������������������������������������� approx. 130 mm
Width ���������������������������������������������������������������� approx. 90 mm
Depth ��������������������������������������������������������������� approx. 360 mm
Weight ��������������������������������������������������������������� approx. 2,5 kg
3.3 Functional description
The HV150 Hand Knife Grinding Attachment is used to sharpen hand knives from 50 to 550 mm
in length.
The knife guides ensure that the hand knives are always ground with the correct cutting edge
angle. Additional integrated magnets support the guidance of the knife and make sharpening
very simple.
NOTE For hand knives longer than 300 mm, the
splash guard (3-2/1) must be removed.
3. Description
Figure 3-1 HV150 side view and front view (dimensions in mm)

15
3.4 Description of assemblies
1 Splash guard
2 Grinding wheels
3 Polishing disk
3. Description
Figure 3-2 HV150 Hand Knife Grinding Attachment
3
2
1

16
When transporting, observe the local applicable safety and accident
prevention regulations.
CAUTION
4.1 Transport aids
For transporting of the grinding attachment, only use adequately dimensioned transport aids.
4.2 Transport damage
If damage is detected after unloading, during acceptance of the delivery, immediately inform
KNECHT Maschinenbau GmbH and the forwarding agent. If necessary, an independent expert
must be called in immediately.
Remove packaging and fastening straps. Dispose of packaging in an environmentally-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).
The grinding attachment must be adequately secured during transport.
4. Transport

17
5.1 Selection of qualified personnel
We recommend having installation work on the grinding attachment
carried out by the 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 grinding attachment (see Chapter 3.2).
5.3 Settings
KNECHT Maschinenbau GmbH will configure the various components before delivery.
ATTENTION Unauthorized alterations to the preset values
are not permitted and can damage the grind-
ing attachment.
5.4 Initial start-up of the grinding attachment
Completely install and inspect the protective equipment before commissioning.
The HV150 grinding attachment may only be used with the KNECHT grinding machines of the
USK160 S model series.
Have all protective equipment checked for proper functioning by
authorized trained personnel before commissioning the machine.
CAUTION
5. Installation

18
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
sharpening machine is switched on.
Serious injury may result. Wear personal protective equipment.
CAUTION
6.1 Fitting the HV150 Hand Knife Grinding Attachment
6.1.1 Fitting CBN grinding wheels
Two CBN grinding wheels are mounted for
sharpening hand knives with the HV150.
First remove the splash guard (6-1/1).
Open the knurled screw (6-1/2) and remove the
splash guard (6-1/1) to the rear.
Loosen the two star handles (6-2/1) on the left-
hand side of the machine and remove the protec-
tion hood.
Then remove the finned-grinding wheel.
6. Commissioning
Figure 6-2 Removing the protection hood
Figure 6-1 Removing the splash guard
2
1
1
1

19
6. Commissioning
To do this, open the hexagon nut (6-3/1) counter-
clockwise using an open-end wrench AF22mm.
Secure the shaft with the 10 mm open-end
wrench.
Remove the finned-grinding wheel (6-4/1).
Unscrew the setscrew (6-5/1) on the left side wall
using a hexagon screwdriver AF3mm.
Figure 6-3 Loosening the finned-grinding
wheel
Figure 6-4 Removing the finned-grinding
wheel
Figure 6-5 Unscrewing the setscrew
1
1
1

20
Figure 6-6 Placing the 30 mm clamping flange
1
Place the 30 mm thick clamping flange (6-6/1)
onto the grinding spindle as far as it will go.
Fit the first CBN grinding wheel (6-7/1) up to the
30 mm clamping flange.
NOTE The recess on the grinding wheel (6-7/1) must
point towards the machine.
Place the 6.5 mm thick intermediate flange (6-8/1)
up to the first grinding wheel (6-8/2) on the grind-
ing spindle.
6. Commissioning
Figure 6-7 Fitting the CBN grinding wheel
1
Figure 6-8 Placing the 6.5 mm intermediate
flange
2
1

21
Figure 6-10 Tightening the CBN grinding
wheel and the clamping flange
1
2
Figure 6-11 Fitting the wiper
1
6. Commissioning
Fit the second CBN grinding wheel (6-9/1) onto
the grinding spindle up to the intermediate flange
(6-8/1).
NOTE The recess on the grinding wheel (6-9/1) must
face outwards.
Fit the 10 mm thick clamping flange (6-10/1) and
turn the nut (6-10/2) onto the thread by hand.
Then tighten the nut (6-10/2) with the two open-
end wrenches (AF10mm and AF 22mm).
If not already present, fit the wiper (6-11/1) using
the AF4 mm hexagon screwdriver and align with
the grinding wheels.
Figure 6-9 Fitting the second CBN grinding
wheel
1