KNECHT A400 User manual

Status 09.2023 Version 1.1 | Translation
Operating Instructions
Sharpening Machine
A 400

3
A400 Sharpening Machine
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
September 25, 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 and mandatory signs and their meaning 8
1.3.1 Warning and mandatory signs on the sharpening machine 8
1.3.2 General warning and mandatory signs 8
1.4 Rating plate and machine serial number 9
1.5 Figure and item numbers in the operating instructions 9
2. Safety 10
2.1 Basic safety instructions 10
2.1.1 Observe notes in the operating instructions 10
2.1.2 Obligation on the part of the operator 10
2.1.3 Obligation on the part of the personnel 10
2.1.4 Hazards involved in handling the sharpening machine 10
2.1.5 Malfunctions 11
2.2 Intended use 11
2.3 Warranty and liability 11
2.4 Safety regulations 12
2.4.1 Organizational measures 12
2.4.2 Protective equipment 12
2.4.3 Informal safety measures 12
2.4.4 Selection and qualification of personnel 12
2.4.5 Machine control system 13
2.4.6 Safety measures in normal operation 13
2.4.7 Hazards due to electrical power sources 13
2.4.8 Particular hazard areas 13
2.4.9 Servicing (maintenance, repair) and fault rectification 13
2.4.10 Structural alterations to the sharpening machine 14
2.4.11 Cleaning the sharpening machine 14
2.4.12 Lubricants/oils and greases 14
2.4.13 Relocation of the sharpening machine 14
3. Description 15
3.1 Intended use 15
3.2 Technical specifications 15
3.3 Functional description 16
3.3.1 Structure 16
3.4 Description of the assemblies 17
3.4.1 Angle gauge 18
3.4.2 Control panel 18
3.4.3 HV146 Truing Device 18
Table of Contents

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4. Transport 19
4.1 Transport aids 19
4.2 Transport damage 19
4.3 Transport to another installation site 19
5. Installation 20
5.1 Selection of qualified personnel 20
5.2 Installation site 20
5.3 Supply connections 20
5.4 Settings 20
5.5 Initial start-up of the sharpening machine 21
6. Commissioning 22
7. Operation 24
7.1 General grinding fundamentals 24
7.2 Grinding with the copy grinding plate 25
7.2.1 Mounting the guide slide 25
7.2.2 Clamping the sickle-shaped knife on the copy grinding plate 26
7.2.3 Mounting the adjustment stop for the angle setting 27
7.2.4 Attaching the copy grinding plate with knife to the grinding table 27
7.2.5 Setting the grinding angle 29
7.3 Grinding sickle-shaped knives 32
7.4 Water tray 35
7.5 Dressing the grinding wheel/deburring wheel 36
7.5.1 Dressing the grinding wheels 38
7.5.2 Dressing the deburring wheel 39
7.5.3 Rounding the edges of the grinding wheels/deburring wheel 40
7.6 Changing the grinding wheels/deburring wheel 41
8. Care and maintenance 46
8.1 Cleaning 46
8.1.1 Cleaning agent and lubricant table 46
8.2 Maintenance plan (one-shift operation) 47
Table of Contents

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9. Disassembly and disposal 48
9.1 Disassembly 48
9.2 Disposal 48
10. Service, spare parts and accessories 49
10.1 Postal address 49
10.2 Service 49
10.3 Wear and spare parts 49
10.4 Accessories 50
10.4.1 Abrasives used, etc. 50
11. Appendix 51
11.1 EU Declaration of Conformity 51
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 A400
Sharpening Machine, hereafter referred to as the sharpening machine and to properly utilize its
features.
These operating instructions contain important notes on how to operate the sharpening machine
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 sharpening machine.
The operating instructions must always be stored in the location that the sharpening machine is
used.
The operating instructions must be read and applied by every person tasked with working with
the 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 sharpening machine or its sur-
roundings.
NOTE “NOTICE” refers to user tips and especially useful informations.
1. Important notes
CAUTION

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1.3 Warning and mandatory signs and their meaning
1.3.1 Warning and mandatory signs on the sharpening machine
The following warnings signs have been affixed on the sharpening machine:
CAUTION! RISK OF INJURY FROM ABRASIVE PARTICLES
(mandatory sign on the control panel)
Grinding, deburring and dressing gives rise to abrasive particles
which can enter the eyes.
Wearing eye protection is mandatory when carrying out such
work.
CAUTION! RISK OF INJURY FROM KNIFE!
(mandatory sign on the control panel)
Working with the sharpening machine involves grinding knives
that could cause serious cut injuries due to their sharpness.
Caution when transporting blades. Use the protective equipment
provided by the knife manufacturer. Protective gloves and safety
shoes must be worn.
1.3.2 General warning and mandatory signs
The following general warning signs must be observed:
CAUTION! DANGEROUS ELECTRICAL VOLTAGE!
The sharpening machine carries life-threatening voltage when
it is connected to the power supply.
Voltage-carrying parts of the machine may only be opened by
authorized personnel.
Before care, maintenance and repair work, the sharpening
machine must be disconnected from the power supply.
1. Important notes

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1.4 Rating plate and machine serial number
The rating plate (1-1) is located on the left side of
the machine.
The machine serial number (1-2) is located on the
rating plate (1-1) and on the lower right side of
the grinding table.
1.5 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: (7-3/1) means picture number 7-3, position 1.
Place the sickle-shaped knife (7-3/1) with the knife protec-
tor on the corresponding copy grinding plate (7-3/2).
Tighten the clamping claws (7-3/3) with moderate force
using an AF 13 mm open-end wrench.
1. Important notes
Figure 1-1 Rating plate
Figure 1-2 Machine serial number
Figure 7-3 Clamping the sickle shaped knife on the
copy grinding plate
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2 1

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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 sharpening
machine is knowledge of the basic safety instructions and regulations.
• These operating instructions contain important notes on how to operate the sharpening
machine safely.
• All persons carrying out work on the sharpening machine 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 sharpening machine, who
• are familiar with the occupational safety and accident prevention regulations and have received
instruction in handling the sharpening machine,
• 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 sharpening machine 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 sharpening machine 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 sharpening machine may be used only:
• for its intended purpose
• in a safe and secure condition.
2. Safety

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Malfunctions that may impair safety are to be eliminated immediately.
2.1.5 Malfunctions
If safety-relevant malfunctions occur with the sharpening machine, 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 sharpening machine is exclusively suitable for sharpening sickle shaped knives up to a
maximum size of 1000 mm.
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 by the user.
Intended use also includes observing all instructions in the operating manual.
ATTENTION Improper use of the sharpening machine
exists, for example, if:
• fixtures are not properly fastened.
• cutting tools other than those mentioned
above are sharpened.
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 sharpening machine,
• improper transport, commissioning, operation and maintenance of the sharpening machine,
• operating the sharpening machine 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 sharpening machine,
• unauthorized structural alterations to the sharpening machine,
• unauthorized modification, e.g. of the drive conditions (output and speed),
2. Safety