KNECHT KLA220-HV153 II User manual

Status 02.2023 ■Version 1.0 | Translation
KLA 220 – HV 153 II
Circular Knife Sharpening machine
Operating Instructions

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Circular Knife Sharpening machine KLA220 – HV 153 II
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
February 2, 2023
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.
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 Warning signs and their meaning 8
1.4 Rating plate and machine serial number 10
1.5 Figure and position numbers in the operating instructions 10
2. Safety 11
2.1 Basic safety instructions 11
2.1.1 Observe notes in the operating instructions 11
2.1.2 Obligation on the part of the operator 11
2.1.3 Obligation on the part of the personnel 11
2.1.4 Hazards involved in handling the circular knife sharpening machine 11
2.1.5 Malfunctions 12
2.2 Intended use 12
2.3 Warranty and liability 12
2.4 Safety regulations 13
2.4.1 Organizational measures 13
2.4.2 Protective equipment 13
2.4.3 Informal safety measures 13
2.4.4 Selection and qualification of personnel 13
2.4.5 Machine control system 14
2.4.6 Safety measures in normal operation 14
2.4.7 Hazards due to electrical power sources 14
2.4.8 Particular hazard areas 14
2.4.9 Servicing (maintenance, repair) and fault rectification 14
2.4.10 Structural alterations to the circular knife sharpening machine 15
2.4.11 Cleaning the circular knife sharpening machine 15
2.4.12 Lubricants/oils and greases 15
2.4.13 Relocation of the circular knife sharpening machine 15
3. Description 16
3.1 Intended use 16
3.2 Technical specifications 16
3.3 Functional description 18
3.3.1 Setup 18
3.4 Description of the assemblies 19
3.4.1 Angle scale 20
3.4.2 Control panel 20
3.4.3 HV156 Dressing device 20
Inhaltsverzeichnis

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4. Transport 21
4.1 Transport aids 21
4.2 Transport damage 21
4.3 Transport to another installation site 21
5. Installation 22
5.1 Auswahl des Fachpersonals 22
5.2 Installation site 22
5.3 Supply connections 22
5.4 Settings 22
5.5 Initial start-up of the circular knife sharpening machine 23
6. Commissioning 24
7. Operation 26
7.1 General grinding fundamentals 26
7.2 Grinding circular knives d. 180–475 mm 27
7.2.1 Adjusting the grinding angle 27
7.2.2 Adjusting the grinding wheels 27
7.2.3 Angle scale 28
7.2.4 Mounting the circular knife holding fixture No. 3 d. 180–475 mm 29
7.2.5 Swiveling the circular knife grinding attachment into the clamping position 30
7.2.6 Clamping the knife 31
7.2.7 Bringing the circular knife grinding attachment into the grinding position 33
7.2.8 Grinding circular knives with double-sided cutting edge 37
7.2.9 Unclamping the circular knife 39
7.2.10 Water tray 40
7.2.11 One-sided cutting edge – Option 1
Version with infinitely variable speed control of the grinding wheels 41
7.2.12 One-sided cutting edge – Option 2
Version without infinitely variable speed control of the grinding wheels 41
7.2.13 One-sided cutting edge – Option 3
Only for special applications and after consultation with KNECHT Service 41
7.3 Grinding circular knives d. 60–180 mm (d. 180 – 250 mm) 43
7.3.1 Adjusting the grinding angle 43
7.3.2 Adjusting the grinding wheels 43
7.3.3 Angle scale 44
7.3.4 Mounting the circular knife holding fixture No. 1 d. 60–180 mm (No. 2 d. 180 – 250 mm) 45
7.3.5 Swiveling the circular knife grinding attachment into the clamping position 46
7.3.6 Clamping the knife 47
7.3.7 Bringing the circular knife grinding attachment into the grinding position 49
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7.3.8 Grinding circular knives with double-sided cutting edge 52
7.3.9 Unclamping the circular knife 54
7.3.10 Water tray 55
7.3.11 One-sided cutting edge – Option 1
Version with infinitely variable speed control of the grinding wheels 56
7.3.12 One-sided cutting edge – Option 2
Version without infinitely variable speed control of the grinding wheels 56
7.4 Dressing grinding wheels 57
7.5 Changing the grinding wheels 60
8. Care and maintenance 64
8.1 Cleaning 64
8.1.1 Cleaning agent and lubricant table 64
8.2 Maintenance plan (one-shift operation) 64
9. Disassembly and disposal 66
9.1 Disassembly 66
9.2 Disposal 66
10. Service, spare parts and accessories 67
10.1 Postal address 67
10.2 Service 67
10.3 Spare parts 67
10.4 Accessories 68
10.4.1 Abrasives used, etc. 68
11. Anhang 69
11.1 EU Declaration of Conformity 69
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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
Sharpening Machine and to properly utilize its features.
These operating instructions contain important notes on how to operate the circular knife sharp-
ening machine safely, properly, and efficiently. Observing these instructions helps to avoid haz-
ards, reduce repair costs and downtimes, and to increase the reliability and service life of the
sharpening machine.
The operating instructions must always be stored in the location that the circular knife sharpening
machine is used.
The operating instructions must be read and applied by every person tasked with working with
the circular knife sharpening machine, 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 circular knife sharpening machine or
its surroundings.
NOTE “NOTICE” refers to user tips and especially useful informations.
1. Important notes
CAUTION

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1.3 Warning signs and their meaning
The following warnings and mandatory signs have been affixed on the sharpening machine:
CAUTION! DANGEROUS ELECTRICAL VOLTAGE
(warning sign on switch housing)
The circular knife sharpening machine carries life-threatening
voltage when it is connected to the current supply.
Voltage-carrying device parts may only be opened by authorized
personnel.
The circular knife sharpening machine must be separated from the
mains supply before carrying out servicing, maintenance and repair
work on it.
CAUTION! DANGER of Retraction!
(Warning sign on the protection hood)
When the circular knife sharpening machine is switched on, there
is a danger of hands, hair and clothing being drawn in.
CAUTION! DANGER OF CUTTING!
(Warning sign on the protection hood)
When working with circular knives, there is a danger of being cut
by sharp knife edges.
ATTENTION! READ OPERATING INSTRUCTIONS!
(Warning sign on the control panel)
Before commissioning and working with the circular knife
sharpening machine, read and follow the operating instructions
and safety instructions.
1. Important notes

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1. Important notes
CAUTION! PULL OUT THE MAINS PLUG BEFORE OPENING!
(mandatory sign on the control panel)
Before opening the control panel, the sharpening machine must
be disconnected from the power supply.
CAUTION! RISK OF INJURY FROM ABRASIVE PARTICLES
(mandatory sign on the protection hood)
Abrasive particles are generated during grinding, deburring and
dressing, which can enter the eyes.
Eye protection must be worn during these operations.
CAUTION! RISK OF INJURY FROM KNIFE
(mandatory sign on the protection hood)
Working with the circular knife sharpening machine involves
grinding knives that could cause serious cut injuries due to their
sharpness.
Caution when transporting knives. Use the protective equipment
provided by the knife manufacturer. Protective gloves and safety
shoes must be worn.

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1.4 Rating plate and machine serial number
The rating plate (1-1) is located on the rear panel
of the machine.
The machine serial number (1-2) is located on the
rating plate (1-1) and on the left underneath the
water tray.
1.5 Figure and position numbers in the operating instructions
If the text refers to a component of the machine that is shown in a figure, the figure and position
number is given in brackets.
Example: (7-1/1) means picture number 7-1, position 1.
The grinding angle is set via the star knob (7-1/1) on the
right side of the machine.
On the machine housing there is a scale (7-1/2) on which
the grinding angle is read off.
Since the grinding angle changes with increasing wear of
the grinding wheels, it must be readjusted daily and after
each dressing process.
1. Important notes
Figure 1-1 Rating plate
Figure 1-2 Machine serial number
Figure 7-1 Grinding angle display
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