KNECHT HV 262 User manual

Status 03.2018 ■Version 1.2 | Translation
Operating Instructions
Universal Belt Grinding Unit
HV 262

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Universal Belt Grinding Unit HV 262
Manufacturer
KNECHT Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Phone [phone]
Fax [phone]
[email protected]
www.knecht.eu
Documents for the machine operator
Operating Instructions
Date of issue of the operating instructions
March 6, 2018
Copyright
The copyright for these operating instructions as well as other documents for the machine operator is held
by KNECHT Maschinenbau GmbH. These documents will be delivered only to our customers and to opera-
tors of our products and are a part of the machine.
These documents may neither be reproduced, nor made accessible to third parties, in particular rival firms.
Operating Instructions

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1. Important notes 6
1.1 Foreword 6
1.2 Warnings and symbols in the operating instructions 6
1.3 Figure and item numbers in the operating instructions 7
2. Safety 8
2.1 Basic safety instructions 8
2.1.1 Observe notes in the operating instructions 8
2.1.2 Operator's duty 8
2.1.3 Obligations on the part of the personnel 8
2.1.4 Hazards associated with the handling of the Universal Belt Grinding Unit 8
2.1.5 Malfunctions 9
2.2 Proper use 9
2.3 Warranty and liability 9
2.4 Safety regulations 10
2.4.1 Organisational measures 10
2.4.2 Protective devices 10
2.4.3 Informal safety measures 10
2.4.4 Selection and qualifications of the personnel 11
2.4.5 Operation 11
2.4.6 Safety measures in normal operation 11
2.4.7 Particular hazard areas 11
2.4.8 Servicing (maintenance, repair) and fault rectification 11
2.4.9 Structural alterations to the Universal Belt Grinding Unit 12
2.4.10 Cleaning the Universal Belt Grinding Unit 12
2.4.11 Oils and greases 12
2.4.12 Relocation of the Universal Belt Grinding Unit 12
3. Description 13
3.1 Use as intended 13
3.2 Technical specifications 13
3.3 Functional description 14
3.4 Description of the 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

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5. Installation 17
5.1 Selection of qualified personnel 17
5.2 Installation site 17
5.3 Settings 17
5.4 Initial commissioning of the Universal Belt Grinding Unit 17
6. Commissioning 19
7. Operation 20
7.1 General principles of grinding technology 20
7.2 Grinding linear cutter knives on the wet-grinding belt 21
7.2.1 Inserting the function disk 21
7.2.2 Setting the grinding angle 22
7.2.3 Mounting the grinding plate 22
7.2.4 Clamping the cutter knife 23
7.2.5 Grinding the cutter knife 23
7.3 Grinding sickle-shaped cutter knives on the wet grinding belt 26
7.4 Increasing the grinding radius 27
8. Care and maintenance 28
8.1 Cleaning 28
8.2 Lubrication schedule and lubricant table 28
9. Disassembly and disposal 29
9.1 Disassembly 29
9.2 Disposal 29
10. Service, spare parts and accessories 30
10.1 Postal Address 30
10.2 Service 30
10.3 Spare parts 30
11. Appendix 31
11.1 EC Declaration of Conformity 31
Table of Contents

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1.1 Foreword
This operator's manual is meant to make it easier to get to know the Universal Belt Grinding Unit
and to use it properly for the intended purpose.
The operator's manual contains important instructions on how to operate the Universal Belt
Grinding Unit safely, properly and cost-effectively. Observance of these instructions helps to avoid
dangers, repair costs and downtimes, and increases the reliability and service life of the Universal
Belt Grinding Unit.
The operating instructions must always be accessible at the place of use of the Universal Belt
Grinding Unit.
The operating instructions must be read and used by all persons entrusted with working on the
Universal Belt Grinding Unit, e.g. those entrusted with
• Transport, installation, commissioning
• Operation, including troubleshooting in the process flow, as well as
• Servicing (maintenance, repair).
In addition to the operating instructions and the binding accident prevention regulations applica-
ble in the country and place of use of the machine, the generally acknowledged rules of technol-
ogy with regard to safe and professional work practices are to be observed.
1.2 Warnings and symbols in the operating instructions
Heeding the following safety alert symbols/designations used in the operating instructions is
absolutely necessary:
The hazard triangle with the signal word “CAUTION” is used as a work
safety indication for all work which could result in death or physical injury.
Special care and caution must be taken when carrying out such jobs.
ATTENTION
The signal word “ATTENTION” is used to call attention to hazards which
could result in damage and/or destruction of the grinding machine or its
environment if special attention is not paid while carrying out particular
jobs.
NOTICE The signal word “NOTE” calls attention to tips on use and useful
information.
1. Important notes
CAUTION

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1.3 Figure and item numbers in the operating instructions
If a component of the machine that is shown in a figure is described in the text, it is followed by a
figure or item number in brackets.
Example: (7-2/1) denotes figure number 7-2, item 1.
Place the function disk (7-2/1) on the locating bolt (7-2/2).
This can be done in two different ways:
For linear cutter knives, the rotation of the function disk is
prevented by a contour (7-2/3). The untoothed region is
then facing in the direction of the operator.
Insert the contour (7-2/3) in the groove (7-2/4).
1. Important notes
3
1
2
4
Figure 7-2 Inserting the function disk

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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 Universal Belt
Grinding Unit is knowledge of the basic safety instructions and regulations.
• These operating instructions contain important notes on how to operate the Universal Belt
Grinding Unit safely.
• All persons carrying out work on the Universal Belt Grinding Unit must follow these operating
instructions, in particular the safety notices.
• In addition, the accident prevention rules and regulations applicable at the place of use of the
machine must also be observed.
2.1.2 Operator's duty
The operator is obliged to allow only those persons to work on the Universal Belt Grinding Unit,
who
• are familiar with the basic occupational safety and accident prevention regulations and have
been trained and instructed in the handling of the Universal Belt Grinding Unit,
• have read the operating instructions, particularly the “Safety” section, and have read and
understood the warning notes. They have given a signed confirmation of this in writing.
It is also checked at regular intervals as to whether the worker is fulfilling his employee obligation
to observe safety at work.
2.1.3 Obligations on the part of the personnel
All the personnel working on the Universal Belt Grinding Unit shall be obliged, before starting
work, to
• observe the basic occupational safety and accident prevention regulations,
• read the operating instructions, particularly the “Safety” chapter, and the warning notes. They
shall give a signed confirmation of this in writing.
2.1.4 Hazards associated with the handling of the Universal Belt Grinding Unit
The Universal Belt Grinding Unit has been built to the latest technological standards and the
acknowledged rules of technical safety. In spite of that, its use presents inherent risks which could
result in bodily harm or even death of the user or third persons, or impairment of the Universal
Belt Grinding Unit or other property.
The Universal Belt Grinding Unit may be used only:
• for the intended purpose, and
2. Safety

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2. Safety
• in faultless condition with regard to safety-relevant aspects.
Faults that could impair safety must be eliminated immediately.
2.1.5 Malfunctions
If safety-relevant malfunctions occur in the Universal Belt Grinding Unit, or if the processing be-
haviour indicates that such malfunctions may have occurred, the Universal Belt Grinding Unit must
be stopped immediately and until such time as the malfunction has been found and eliminated.
Allow only authorised technical staff to eliminate the malfunctions.
2.2 Proper use
The Universal Belt Grinding Unit is meant for grinding linear and sickle-shaped flat knives only. It is
suitable for attachment to KNECHT grinding machines from the S 200 series and to USK 230. All
the knives must be clamped onto matching grinding plates.
Before starting work on a flat knife, it must be checked whether the knife fits on the grinding
plate. Only then may the knife be clamped onto the grinding plate to prevent damage to the
knife.
Any other use is considered improper use. KNECHT Maschinenbau GmbH does not assume any
liability for damages resulting from improper use. The user alone bears the risk in such cases.
Use as intended includes the observance of all the instructions in the operating instructions.
The Universal Belt Grinding Unit is being used improperly, if, e.g.,
• it is attached to grinding machines other than KNECHT S 200 and USK 230,
• the knife was clamped incorrectly onto the grinding plate,
• attachments are not fastened properly.
• knives are ground in opposite direction of the cutting edge on the wet-grinding belt.
2.3 Warranty and liability
Warranty and liability claims in case of personal injuries or property damage are excluded if such
damage is attributable to one or more of the following causes:
• improper use of the Universal Belt Grinding Unit,
• improper transportation, commissioning, operation and maintenance of the Universal Belt
Grinding Unit and its attachments,

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• operating the Universal Belt Grinding Unit with defective safety devices, or improperly attached
or malfunctioning safety and protective equipment,
• ignoring the operating instructions with regard to transportation, commissioning, operation,
maintenance and repair of the Universal Belt Grinding Unit.
• unauthorised structural alterations to the Universal Belt Grinding Unit,
• insufficient monitoring of machine parts that are exposed to wear.
• use of unapproved replacement and wear parts
Use only original replacement and wear parts. If parts are purchased from external suppliers, it
cannot be guaranteed that they will be constructed and manufactured to withstand the stresses
and provide the required level of safety.
2.4 Safety regulations
2.4.1 Organisational measures
All the existent safety devices must be checked regularly.
Observe prescribed intervals for recurring maintenance work or as specified in the operating
instructions.
2.4.2 Protective devices
Before commissioning the Universal Belt Grinding Unit, it must be ensured that all protective
equipment is properly mounted and in functional condition.
Protective equipment may be removed only after the machine has stopped and has been secured
against accidental restarting of the Universal Belt Grinding Unit.
If sub-components are supplied, the protective equipment must be correctly attached by the
operator according to the instructions.
2.4.3 Informal safety measures
The operating instructions must be permanently available at the place of use of the Universal Belt
Grinding Unit. In addition to the operating instructions, the generally applicable as well as the
locally relevant accident prevention regulations must also be made available and observed.
All the safety alert symbols and danger warnings on the Universal Belt Grinding Unit must be
complete and clearly legible.
2. Safety

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2.4.4 Selection and qualifications of the personnel
Only trained and instructed personnel may work on the Universal Belt Grinding Unit. The mini-
mum legal age for employment must be observed.
The responsibilities of the personnel must be clearly assigned, i.e. commissioning, operation,
maintenance and repair, etc.
Personnel still in the training or instruction phase may only be allowed to work on the Universal
Belt Grinding Unit under the permanent supervision of an experienced person.
2.4.5 Operation
Only adequately instructed and trained personnel are authorised to operate the grinding unit in
connection with the machine.
2.4.6 Safety measures in normal operation
Refrain from any method of working which may pose a risk to safety. Only operate the Universal
Belt Grinding Unit if all the safety devices are installed and fully functional.
Check the Universal Belt Grinding Unit for external signs of damage and correct operation of the
safety devices at least once every shift.
Report any changes (including operating behaviour) immediately to the competent depart-
ment/person. If required, put the grinding machine out of operation immediately and secure
against restarting.
Before using the Universal Belt Grinding Unit, ensure that no one is exposed to any risk from the
start-up of the machine.
Immediately put the Universal Belt Grinding Unit out of operation and secure against restarting in
case of any malfunctions. Have the faults eliminated immediately.
2.4.7 Particular hazard areas
In the area of the grinding wheel, wet-grinding belt and flap brush, there is a hazard of pinching
and being drawn in (e.g. clothing, fingers and hair). Suitable personal protective equipment must
be worn.
2.4.8 Servicing (maintenance, repair) and fault rectification
Maintenance work is to be carried out on schedule by trained personnel. Inform operating
personnel before starting repair work. The responsible supervisor is to be named.
For all service work, the grinding machine is to be disconnected from the power supply and
secured against accidental restarting. Pull out the mains plug. Cordon off the servicing area, as
far as possible.
2. Safety