Retsch SM 400 User manual

© Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany | 30.01.2020 Version 0002
Manual
Cutting Mill SM 400
Translation

2
Copyright
© Copyright by
Retsch GmbH
Retsch-Allee 1-5
42781 Haan
Germany

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Table of Contents
1Notes on the manual............................................................................................................................. 6
1.1 Disclaimer.......................................................................................................................................... 6
1.2 Copyright............................................................................................................................................ 6
1.3 Explanation of signs and symbols ..................................................................................................... 6
1.4 Explanations of the Safety Instructions ............................................................................................. 6
1.5 General Safety Instructions ............................................................................................................... 7
1.6 Repairs............................................................................................................................................... 9
1.7 Responsibility of the operating company........................................................................................... 9
1.8 Personnel qualification and target group of this manual ................................................................... 9
2Confirmation Form for the Managing Operator................................................................................ 11
3Technical Data..................................................................................................................................... 12
3.1 Protective Equipment....................................................................................................................... 12
3.2 Degree of Protection........................................................................................................................ 12
3.3 Emissions......................................................................................................................................... 12
3.4 Electromagnetic Compatibility (EMC).............................................................................................. 12
3.5 Rated Power.................................................................................................................................... 12
3.6 Motor Rotation Speed...................................................................................................................... 13
3.7 Dimensions and Weight................................................................................................................... 13
3.8 Required Floor Space...................................................................................................................... 13
3.9Receptacle Volume.......................................................................................................................... 13
3.10 Feed Grain Size............................................................................................................................... 13
3.11 Installation drawing.......................................................................................................................... 14
4Packaging, Transport and Installation .............................................................................................. 16
4.1 Packaging........................................................................................................................................ 16
4.2 Transport.......................................................................................................................................... 16
4.3 Temperature Fluctuations and Condensation ................................................................................. 17
4.4 Conditions for the Installation Site................................................................................................... 17
4.5 Electrical Connection....................................................................................................................... 18
4.6 Type Plate Description..................................................................................................................... 18
5First Commissioning........................................................................................................................... 20
5.1 Installation of the Device.................................................................................................................. 20
5.2 Installing the fill hopper.................................................................................................................... 21
6Operating the Device .......................................................................................................................... 23
6.1 Use of the Device for the Intended Purpose.................................................................................... 23
6.2 Principle of Operation ...................................................................................................................... 24
6.3 Views of the device.......................................................................................................................... 24
6.3.1 Front............................................................................................................................................. 24
6.3.2 Side view...................................................................................................................................... 26
6.3.3 Interior view.................................................................................................................................. 26
6.4 Switching On / Off............................................................................................................................ 27
6.5 Opening and Closing of the Device................................................................................................. 28
6.6 Operation......................................................................................................................................... 29
6.6.1 Starting the grinding process....................................................................................................... 29
6.6.2 Adding sample material ............................................................................................................... 30
6.6.3 Removing sample material after grinding.................................................................................... 30
6.6.4 Stopping the grinding process ..................................................................................................... 31
6.7 Replacing the bottom sieve ............................................................................................................. 32
7Cleaning, Wear and Maintenance ...................................................................................................... 34
7.1 Cleaning........................................................................................................................................... 34
7.1.1 Removing and installing the feed hopper .................................................................................... 35
7.1.2 Cleaning the feed hopper ............................................................................................................ 35
7.2 Wear ................................................................................................................................................ 36

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7.2.1 Replacing the cutting bars ........................................................................................................... 36
7.3 Maintenance .................................................................................................................................... 37
7.3.1 Adjusting the cutting bars ............................................................................................................ 37
7.3.2 Checking the safety switch .......................................................................................................... 38
7.4 Return for Service and Maintenance............................................................................................... 40
8Accessories ......................................................................................................................................... 41
9Disposal................................................................................................................................................ 42
10 Index ..................................................................................................................................................... 43

Notes on the manual
5

Notes on the manual
6
1 Notes on the manual
This manual provides technical guidelines for the safe operation of the device. Read this
manual through carefully before installing, putting into service and operating the device.
Reading and understanding this manual is essential for handling the device safely and as
intended.
This manual does not contain any repair instructions. Please contact your supplier or contact
Retsch GmbH directly if anything is unclear or you have questions about these guidelines or the
device, or in the case of any faults or necessary repairs.
You can find further information about your device at http://www.retsch.com on the pages for
the specific device concerned.
Amendment status:
The document amendment 0002 of the "Cutting Mill SM 400" manual has been prepared in
accordance with the Machinery Directive 2006/42/EC.
1.1 Disclaimer
This manual has been prepared with great care. We reserve the right to make technical
changes. We assume no liability for personal injuries resulting from the failure to follow the
safety information and warnings in this manual. No liability will be assumed for damage to
property resulting from the failure to follow the information in this manual.
1.2 Copyright
This document or parts of it or its content may not be reproduced, distributed, edited or copied
in any form without prior written permission of Retsch GmbH. Damage claims shall be asserted
in the case of infringements.
1.3 Explanation of signs and symbols
In this document the following signs and symbols are being used:

Reference to a recommendation and/or an important information
→
Reference to a chapter, table or figure

Action instruction
│Name│
Software menu function
[Name]
Software button
⟨Name⟩
Software checkbox
1.4 Explanations of the Safety Instructions
The following warnings in this manual warn of possible risks and damage:
DANGER
D1.0000
Risk of fatal injuries
Source of danger

Notes on the manual
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−Possible consequences if the danger is ignored.
•Instructions and information on how to avoid the risk.
Fatal or serious injuries may result if the “Danger” sign is disregarded. There is a very high
risk of a life-threatening accident or lasting personal injury. The signal word DANGER is
additionally used in the running text or in instructions.
WARNING
W1.0000
Risk of life-threatening or serious injuries
Source of danger
−Possible consequences if the danger is ignored.
•Instructions and information on how to avoid the risk.
Life-threatening or serious injuries may result if the “Warning” sign is disregarded. There is
an increased risk of a serious accident or of a possibly fatal personal injury. The signal word
WARNING is additionally used in the running text or in instructions.
CAUTION
C1.0000
Risk of injuries
Source of danger
−Possible consequences if the danger is ignored.
•Instructions and information on how to avoid the risk.
Average to slight injuries may result if the “Caution” sign is disregarded. There is an average
or slight risk of an accident or personal injury. The signal word CAUTION is additionally
used in the running text or in instructions.
NOTICE
N1.0000
Type of damage to property
Source of the damage to property
−Possible consequences if the information is ignored.
•Instructions and information on how to avoid the damage to
property.
Damage to property may result if the information is disregarded. The signal word NOTICE is
additionally used in the running text or in instructions.
1.5 General Safety Instructions
CAUTION
C2.0002

Notes on the manual
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Risk of injury
Lack of knowledge of the manual
−The manual contains all safety-related information. Disregarding the
manual can therefore lead to injuries.
•Read the manual carefully before operating the device.
Target group
All those operating, cleaning or working with or on the device.
This device is a modern, powerful product from Retsch GmbH and has been developed in line
with the state-of-the art. The device is safe to use when operated correctly and when following
the instructions in this manual.
Safety Officer:
The operating company itself must ensure that people authorised to work on the device…
−have read and understood all regulations contained in the chapter on safety;
−are aware before they start work of all instructions and regulations for the target group
related to the work;
−have easy access to the technical documentation for this device at all times;
−have been familiarised with the safe and correct handling of the device before starting
work on it, by means of a verbal introduction by a competent person and/or using this
technical documentation.
CAUTION Improper operation can lead to personal injuries and damage to property. The
operating company itself is responsible for its own safety and that of its staff. The operating
company itself is responsible for ensuring that no unauthorised persons have access to the
device.
CAUTION People under the influence of intoxicating substances (medications, drugs,
alcohol), fatigue or health disorders are not allowed to operate the device.
CAUTION
C3.0015
Risk of injury
Improper modifications to the device
−Improper modifications to the device can result in injuries.
•Do not make any unauthorised changes to the device.
•Only use the spare parts and accessories approved by Retsch
GmbH!
NOTICE
N2.0012
Changes to the device
Improper modifications
−The conformity declared by Retsch GmbH with the European Directives
will lose its validity.
−Any warranty claims will be terminated.
•Do not make any modification to the device.
•Use spare parts and accessories that have been approved by Retsch
GmbH exclusively.

Notes on the manual
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1.6 Repairs
This manual does not contain any repair instructions. For safety reasons, repairs may only be
carried out by Retsch GmbH or an authorised representative or by qualified service technicians.
In case of repair, please inform…
…the Retsch GmbH representative in your country,
…your supplier, or
…Retsch GmbH directly.
Service address:
1.7 Responsibility of the operating company
The user of the machine (the operating company) is responsible for ensuring that every person
who works on the machine has been given precise instructions on the basis of this Manual
(commissioning, operation, servicing). Training for operators must cover the following points:
•Intended purpose of the machine
•Hazardous areas
•Safety provisions
•You must be satisfied that staff have the requisite qualifications
•General instructions and actions in an emergency
•Applicable accident prevention regulations
•Personal protective clothing required
•Operation of the machine in line with this Manual
•Accepted, applicable rules governing occupational health and safety
Incorporate the SM 400 into your emergency planning:
•Integrate the SM 400 into your operating procedures regulating conduct in
emergency situations.
•To prevent accidents during work processes, incorporate the SM 400 into
your risk assessment in acc. with the German Ordinance on Industrial
Health and Safety (BetrSichV).
•Take into consideration fire-fighting measures, combatting the effect of
leaking substances, potential radiation, rescuing people, first-aid
measures.
1.8 Personnel qualification and target group of this manual
This manual is intended for trained assembly personnel , maintenance staff and users .

Notes on the manual
10
Training must be provided in the language of the personnel concerned so that all instructions
are understood. As such the following personnel qualifications are necessary:
Assembly,
commissioning,
instruction,
troubleshooting,
servicing work,
as described in this
manual
Skilled technical staff as well as external service providers who
speak German and the language of the operating personnel.
The usual skills communicated during training, e.g. as a plant
fitter, mechatronics engineer or toolmaker, are prerequisites for
the assembly, commissioning and troubleshooting of the
machine. Employees must be able to manage all applicable
mechanical tasks and be familiar with and have experience of
dealing with these.
Operation
Education/training in accordance with the above section,
responsibilities of trained employees.
Servicing/repairs
They must be experienced, trained professionals, familiar with
requirements and guidelines.