SKF EAZ Manuel utilisateur
Instructions for use
Mode d’emploi
Bedienungsanleitung
Instrucciones de uso
Manuale d’istruzioni
Instruções de uso
使用说明书
Инструкция по эксплуатации
SKF EAZ
English
English 2
Français
Français 14
Deutsch
Deutsch 26
Español
Español 38
Italiano
Italiano 50
Português
Português 62
中文
中文 74
Русский
Русский 86
2SKF EAZ
EC Declaration of conformity ....................................................................................3
Safety recommendations ..........................................................................................4
1. Introduction .....................................................................................................5
1.1 Principle of operation .................................................................................................... 5
2. Technical data ..................................................................................................7
3. Instructions before use .....................................................................................8
4. Operating instructions ......................................................................................9
5. Determination of heating times ......................................................................11
5.1 Determination of heating time for mounting ..........................................................11
5.2 Determination of heating time for dismounting .....................................................11
6. Demagnetisation ............................................................................................12
7. Safety features ..............................................................................................12
8. Maintenance ..................................................................................................13
Table of contents
Original instructions
3
SKF EAZ
English
EC Declaration of conformity
We,
SKF Maintenance Products
Kelvinbaan 16
3439 MT Nieuwegein
The Netherlands
herewith declare that the following product:
Fixed induction heaters
EAZ
has been designed and manufactured in accordance with:
EMC DIRECTIVE 2014/30/EU as outlined in the harmonized norm for
DIN EN 60519-1:2011
DIN EN 60519- 3:2005
DIN EN 60335-1:2012
DIN VDE 298-4
DIN VDE 0848-3-1
DIN EN 61000-6-4
DIN EN 50527- 2-1
VDE 0848-527- 2-1:2012-05
BGV 811
§3 26.BimschV
DIN EN 50413:2009-08
DIN EN ISO 7010
DIN EN 60529
EUROPEAN LOW VOLTAGE DIRECTIVE 2014/35/EU
EUROPEAN ROHS DIRECTIVE 2011/65/EU
Nieuwegein, The Netherlands,
May 2016
Sébastien David
Manager Product Development and Quality
4SKF EAZ
Safety recommendations
• Follow the operating instructions at all times.
• The heater should not be used in areas where there is a risk for explosion.
• Risk of electrical hazard. Only qualified and adequately trained personnel
must be allowed to operate the equipment.
• During the heating process observe a safety distance of 1,5 m (4.9 ft)
with the induction heater.
• Since a magnetic field is generated by the induction heater, people
wearing cardiac pacemakers or having metallic implants must observe
a safety distance of at least 5 metres (16 ft) from the induction heater
during operation. Electronic equipment, such as wristwatches, mobile
phones, may also be affected.
• Use proper handling equipment when lifting heavy workpieces.
Secure the workpiece with appropriate lifting and handling equipment
while heating.
• Never modify the heater.
• Use heat resistant gloves.
• All repair work should be carried out by an SKF repair shop.
• Make sure the supply voltage is correct. Connecting the induction heater
to the wrong voltage supply will void the warranty and probably damage
the heater.
• Always make sure the heater is securely connected to earth.
• Do not expose electronic components to high humidity or water.
• Never introduce body parts into the bore of the heater during operation.
• Do not use the equipment in case of damage or heavy wear is detected
on the heating coil.
• Handle the coil with care to avoid shock loads and jamming during
mounting and dismounting.
• Be aware of pinching risk.
• Cracked rings must not be heated with the electrical induction heater.
5
SKF EAZ
English
1. Introduction
The fixed induction heaters are used for mounting and dismounting of:
• inner rings of cylindrical roller bearings,
• roll groove rings of cold reducing machines and
• roll-body-side labyrinth rings of bearing arrangements.
They are used where large numbers of bearings of the same design are used or where
large bearings with tight fit are frequently mounted and dismounted. They are intended
for one particular bearing and one particular application.
1.1 Principle of operation
The fixed induction heaters consist of a cylindrical
induction coil made of copper wire permanently
mounted in a plastic housing serving as mechanical
extractor. Depending on the size of the heater two
different executions exist as per figure 1 and figure 2.
Fig. 1 Standard execution for rings up
to 380 mm
Fig. 2 Special execution for odd and
large component
6SKF EAZ
The tool is positioned over the ring-shaped part to be heated. The coil is then energised
by the alternating current from the mains supply generating a magnetic field inducing
eddy currents in the ring.
The electrical resistance of the rings will cause it to heat up rapidly which in its turn will
cause the ring to expand. After a pre-determined heating time the ring can be withdrawn.
Fig. 3 The heater is being positioned over the ring
Fig. 4 The heater is positioned over the ring
As magnetic fields with a low frequency penetrate steel to a depth of only a few
millimetres, the roll neck is only heated slightly.
7
SKF EAZ
English
2. Technical data
Product designation :
Recommended
control cabinet
:
Heater dimensions
- Width :
- Housing height :
- Inner diameter :
- Housing width :
- Cable length :
- Weight :
Component dimensions
- Bearing designation or
drawing number :
- Inner diameter (d) :
- Outer diameter (F) :
- Width (B) :
Application
- Drawing number :
- Neck diameter :
- Interference fit :
B
dF
8SKF EAZ
Electrical data
- Mains voltage :
- Mains frequency :
- Current consumption during
mounting :
- Current consumption during
dismounting :
- Insulation resistance :
Heating time
- For mounting :
- For dismounting :
Overheating protection :
3. Instructions before use
A.
Make sure the control panel type SS is
connected to the three-phase mains by an
authorised electrician. Use only SKF control
cabinet to avoid damage in the EAZ induction
heater.
B.
Connect the three-core heater cable (two-
phase + earth) to the connection block inside
the control panel (see enclosed wiring diagram
and parts list). To avoid confusion when
connecting the heater, the cable lugs have
been provided with different bore diameters
which correspond to the studs in the flat
connecting block.
C. The control panel incorporates a timing relay
which is accessible from the outside and
serves for setting the heating time.
D. In order to obtain the full heating capacity
of the coil assure that the cable is connected
without loops.
E. Check for damages before use, specially the
sleeve and power cables. The cables may get
damaged due to the compression or the high
temperatures.
Fig. 5 Connect the control cabinet to
mains supply
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