Gruetzner IND 220 User manual

IND 220
User manual

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IND 220
I. Revision history & imprint
I.I Revision history
The present user manual is the original user manual.
This user manual is only valid for
Product Product designation: IND 220
Product revision: 0
User manual Date of creation: 10/2021
Revision of the user manual: 0
This document is protected by copyright.
All rights for layout, content, texts and corporate design are reserved by Gruetzner GmbH, © 2021.
All rights, including those of photomechanical reproduction, duplication and distribution by means
of special processes (e.g. data processing, data carriers and data networks), even in part and/or
in extracts, are reserved by Gruetzner GmbH.
The content and technical specications are subject to change without notice.
I.II Imprint
Adress:
Gruetzner GmbH
Dagobertstr. 15
90431 Nuremberg, Germany
Tel: [phone]
Fax: [phone]
[email protected]
www.G-LUBE.com
Commercial Register of Nuremberg local court:
HRB 12109
VAT ID: DE 160441123
CEO: Volker Grützner

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I.III Table of contents
1. General information about this manual 5
1.1. Signal words 5
1.2. Warning symbols 5
1.3. Structure of the safety instructions 6
1.4. Symbols for information 6
2. Safety 7
2.1. Hazards 7
2.2. Sta 7
2.3. Reasonably predictable misuse 7
2.4. Usage for the intended purpose 7
2.5. Warranty and Liabilty 8
2.6. General safety instructions 9
3. Description of function 10
3.1. Design 10
3.2. Scope of delivery 11
3.3. Nameplate and designation 11
3.4. Technical data 11
4. Transport and storage 13
4.1. Packaging 13
4.2. Transport 13
4.3. Storage 13
5. Commissioning & operation 14
5.1. Control panel 14
5.2. Electrical connection 14
5.3. Place workpiece 15
5.4. Position temperature probe 16
5.5. Heating process in temperature mode 16
5.5.1. Heating process with reheat function 17
5.5.2. Heating process without reheat function 19
5.6. Heating process in time mode 21
6. Troubleshooting 23
6.1. The device does not switch on 23
6.2. The device does not heat up 23
6.3. Error messages on the display 24

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7. Maintenance 25
7.3.1. Visual check 25
7.3.2. Cleaning 25
8. Released accessories 26
9. Appendix 27
9.1. EC/EU Declaration of conformity 27

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1. General information about this manual
This user manual contains all necessary information to use the heating device safely and as
intended. In the event that supplementary sheets are attached to these instructions, the infor-
mation and data contained there are valid and replace the corresponding information in this
user manual. Any contradictory information contained in this user manual thus becomes invalid.
If you have any questions regarding special applications, please contact Gruetzner GmbH
(→chap. I.II Imprint ).
The actual and factual operator must ensure and guarantee that these instructions,
including any supplementary sheets, have been read and understood by all persons responsible
for the installation, operation or maintenance of the heating device. Therefore, keep these instruc-
tions in a suitable place, ideally in an easily accessible place in the surrounding area of the heating
device.
Inform your colleagues who work in the local area of the device about safety instructions so
nobody gets hurt.
This manual was written in German, all other language versions are translations of this manual.
1.1. Signal words
The following signal words are used in this manual to draw your attention to possible dangers,
prohibitions and other important information:
DANGER This signal word points you to an immediate and threatening risk of
serious injury or death.
WARNING This signal word indicates a potentially imminent danger which can
result in serious injury or even death.
CAUTION This signal word indicates a potentially imminent danger that can result
in minor to severe injuries.
NOTICE This signal word indicates a potentially imminent danger which can
result in damage to property.
INFO This signal word refers to practical application tips or particularly
important information when using the heating device.
1.2. Warning symbols
The following warning symbols are used in this user manual to alert you to hazards, prohibitions
and important information:

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General
warning sign
Electricity
hazard
1.3. Structure of the safety instructions
The safety instructions in this user manual are structured according to the following system:
CAUTION
This text explains the consequences of disregarding the
reference.
• This text shows what to do as an instruction.
1.4. Symbols for information
The following information symbols are used in the text and instructions in this manual:
IRequests you to take action
ÜShows the consequences of an action
iAdditional information about the action

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2. Safety
All persons working with the heating device must follow these operating instructions, in particular
the safety instructions and the rules and regulations applicable at the place of use. Generally appli-
cable legal regulations and other rules as well as the relevant rules and regulations for accident
prevention (e.g. personal protective equipment (PPE)) and environmental protection must be
observed.
2.1. Hazards
In order to avoid danger to the user, the heating device may only be used for its intended purpose
(→chap. 2.4) and in a technically safe condition.
Always inform yourself about the general safety instructions (→chap. 2.6) before starting to work.
2.2. Sta
Only qualied sta who has read and understood this manual may work with the heating device.
Local and/or company regulations apply accordingly.
2.3. Reasonably predictable misuse
Any use of the heating device which exceeds the maximum permissible technical data is generally
considered to be improper and therefore prohibited.
2.4. Usage for the intended purpose
The following points must be observed for the intended purpose of using the heating device:
• The heating device is exclusively approved for industrial use.
• The heating device may be used in accordance with the technical data (→chap. 3.4) exclu-
sively.
• The heating device must not be put into operation as long as no workpiece is positioned on
the heating tower.
• All electronics are designed for use in IND 220 and cannot be used for other applications.
• Unauthorized structural alterations to the heating device are not permitted.
• The heating device may not be opened or disassembled.
• Relevant regulations and rules on work safety, accident prevention and environmental
predction must be observed.
• Work and activities with and on the heating device are only permitted with appropriate autho-
risation (→chap. 2.2 Sta ).

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All other uses than the aforementioned intended usage or the disregard of one of the above points
shall be deemed improper usage. In this case no liability and/or warranty is assumed.
2.5. Warranty and Liabilty
If the following items are disregarded, all warranty and liability claims for personal injury and/or
damage to property are excluded:
• non-observance of the instructions on transport and storage;
• misuse;
• improper or unperformed maintenance or repair work;
• improper assembly / disassembly or improper operation;
• operation of the heating device with defective safety devices;
• modications or alterations which may be carried out without the written permission of the
manufacturer have taken place;
• opening and/or partial or complete disassembly of the heating device.

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2.6. General safety instructions
The following safety instructions are given for the heating device:
DANGER
Damaged or awed electrical connections or unlicensed hot
components lead to heavy injuries or even death.
• All work on electrical connections shall be provided by qualied
personnel only.
• Immediately change damaged cables or plugs.
DANGER
Never use the heating device in potentially explosive areas.
WARNING
The heating device generates a magnetic eld that can cause inter-
ference with pacemakers and electronic devices such as wrist-
watches.
• Electronic devices and persons with pacemakers must keep a safe
distance of 5 metres during operation.
CAUTION
Risk of injury from heated individual parts.
• Keep a safety distance of 50 cm from the workpiece and the heating
tower during the heating process.
• Use heat-resistant gloves when handling the workpiece.
NOTICE
Moisture can damage the heating device.
• Never expose the heating device to high levels of humidity.
• Do not immerse the unit in water or other liquids.

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3. Description of function
3.1. Design
IND 220 is suitable for mounting all ring-shaped metal parts (e.g. rolling bearings, gear wheels,
anges and pulleys) that are mounted on shafts with press tension. As with an induction cooker, a
magnetic eld is generated in the medium frequency range, which induces a voltage in the inner
ring of the workpiece. The eddy currents thus generated heat the workpiece and expand it so that
it can be mounted on the shaft without applying force. All components of the heater remain cold.
All workpieces to be heated must be made of magnetic metals. This property can be easily checked
by means of the temperature probe supplied.
2
6
5
4
3
1
Fig. 1: Overview IND 220
No. Description No. Description
1 Temperature probe 4 Control panel
2 Workpiece 5 Display
3 Heating tower 6 Master switch

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3.2. Scope of delivery
The heating device is delivered with power cable, temperature probe, protective gloves and a bag.
3.3. Nameplate and designation
Each heating device is marked by means of the CE symbol and a nameplate. The nameplate
contains information on the manufacturer and the serial number.
Fig. 2: Markings
3.4. Technical data
Housing
Dimensions WxHxD 430 x 300 x 215 mm
Weight ~3.5 kg
Operation
Audible alarm at the end of the operation yes
Programmable time period 0 ... 99:59 min.
Digital temperature control (temperature
probe) 20 ... 180 °C
Heating temperature for workpieces 20 ... 110 °C
Workpieces
Internal diameter 20 ... 120 mm
External diameter max. 220 mm

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Weight max. 10 kg
Material magnetic metal
Electrics
Power supply voltage 230 / 115* V
Frequency 50 / 60* Hz
Installed power 1 kVA
Current draw 2.3 ... 4.5 A
* depending on model
Please see →chap. 5.2 Electrical connection for more information about electrics.

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4. Transport and storage
4.1. Packaging
The heating device is delivered with accessories in an outer packaging (cardboard box). To protect
the products from moisture and dirt they are also packed in PE lms.
Dispose the packaging materials at designated disposal points in compliance with the relevant
national and company regulations.
After receiving the heating device check the delivery note for completeness and correctness. Any
missing parts or damages must be reported immediately to the forwarding agent, the insurance
company or Gruetzner GmbH in writing.
4.2. Transport
NOTICE
Hard shocks due to e.g. falling or setting down too hard can
damage the heating device.
• Do not throw the heating device.
• When using lifting equipment only use hoists and load handling attach-
ments in perfect condition and with sucient load capacity.
• The permissible lifting weight of the lifting device must not be exceeded.
4.3. Storage
Store the heating device in its original packaging in a vertical position in a dry, frost-free
environment at an ambient temperature of +5 °C to +40 °C.

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5. Commissioning & operation
5.1. Control panel
The control panel consists of a display and ve buttons that control the heating device.
4
3
1
2
4
5
Fig. 3: Overview control panel
No. Description No. Description
1 Display 4 Arrow buttons
2 Button temperature mode 5 Button ON/OFF
3 Button time mode
5.2. Electrical connection
Before starting to work, inform yourself in detail about the heating device using this user manual;
and follow the general safety instructions (→chap. 2.6) in particular. The heater‘s mains power
supply must be properly grounded and the socket must be in accordance with the cable plug.
I Insert the mains plug into the socket and press the main switch to switch on the heating
device.
Ü The display lights up. The factory setting is 20 s in time mode.

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iThis procedure will not start the heating cycle.
Fig. 4: Mains plug Fig. 5: Master switch
5.3. Place workpiece
I Place the workpiece on the heating tower. Observe the specications for material and dimen-
sions (→chap. 3.4 Technical data ).
iThermal interface material is recommended for use, but is not mandatory.
Fig. 6: Place workpiece

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5.4. Position temperature probe
I Clean the temperature probe and remove llings.
I Position the temperature probe on the inner ring of the workpiece.
iThe use of heat conducting material is recommended but not mandatory.
NOTICE
Incorrect positioning of the temperature probe can damage the
workpiece during the heating process.
• Position the temperature probe only on the inner ring of the workpiece.
I Insert the plug of the temperature probe into the socket on the back of the heater.
Fig. 7: Position temperature probe Fig. 8: Plug in temperature probe
NOTICE
Contact with the heated workpiece can damage the temperature
probe cable.
• Make sure that the cable does not touch the workpiece during the
entire heating process.
5.5. Heating process in temperature mode
The heating process can be carried out in time or temperature mode.
In temperature mode you can programme the temperature to which the workpiece is to be
heated. This mode provides a reheat function which automatically reheats the workpiece after a
drop in temperature.

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5.5.1. Heating process with reheat function
I Press the “temperature mode“ button twice.
Ü Temperature mode is now activated.
Ü The LED above the “temperature mode“ button lights up. The reheat function is now
activated.
Fig. 9: Reheat function activated
The heating temperature is set via the control panel. The factory setting is 110 °C.
I Select the required temperature using the arrow buttons. You can keep the arrow buttons
pressed to reach the desired setting more quickly.
Fig. 10, 11: Setting the temperature

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NOTICE
Excessively high temperatures can damage the workpiece or the
heating device.
• Observe the temperature specications of the heating device (→chap.
3.4 Technical data ).
Ü If the setting is correct, the temperature is shown in three digits.
Fig. 12: Correct temperature display
I Press the “ON/OFF“ button to start the heating process.
Ü The LED above the “ON/OFF“ button lights up.
Ü The workpiece is heated until the programmed temperature is reached.
Ü The current temperature of the workpiece can be read on the display at any time.
Ü As soon as the programmed temperature is reached, an audible signal sounds for a few
seconds. The display starts ashing. The heating process stops automatically.
Ü When the temperature has dropped by 4 °C the display stops ashing. The heating process
restarts and heats the workpiece to the progammed temperature.
I Press the “ON/OFF“ button to interrupt or stop the heating process.
Ü The display shows the programmed temperature.
Fig. 13: Start / interrupt / stop heating process

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5.5.2. Heating process without reheat function
I Press the “temperature mode“ button once.
Ü Temperature mode is now activated.
Ü The LED above the “temperature mode“ button does not light up. The reheat function is
deactivated.
Fig. 14: Reheat function deactivated
The heating temperature is set via the control panel. The factory setting is 110 °C.
I Select the required temperature using the arrow buttons. You can keep the arrow buttons
pressed to reach the desired setting more quickly.
Fig. 15, 16: Setting the temperature

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NOTICE
Excessively high temperatures can damage the workpiece or the
heating device.
• Observe the temperature specications of the heating device (→chap.
3.4 Technical data ).
Ü If the setting is correct, the temperature is shown in three digits.
Fig. 17: Correct temperature display
I Press the “ON/OFF“ button to start the heating process.
Ü The LED above the “ON/OFF“ button lights up.
Ü The workpiece is heated until the programmed temperature is reached.
Ü The current temperature of the workpiece can be read on the display at any time.
Ü As soon as the programmed temperature is reached, an audible signal sounds continuously.
The heating process stops automatically.
Ü The display shows the programmed temperature.
I Press the “ON/OFF“ button to interrupt the heating process or to stop the signal.
Fig. 18: Start / interrupt heating process / stop signal