Guth Ventiltechnik RA 45 User manual
12.1.17
Rührgeräte - auswechselbare RA-Modelle
List of contents 2
Availability and Completeness
These operating instructions constitute part of the valve delivery and must be kept available so that they can be referred to by authorised per-
sonnel at any time. No sections may be removed from these instructions. Should the operating instructions or individual pages be missing,
they must be replaced at once.
Change Service
This documentation is subject to the Change Service of Guth Ventiltechnik GmbH.
Changes may be made to this documentation without notice of such changes
being given.
Copyright
This documentation contains information that is protected by copyright. It may only
be used in connection with the use of the valve.
Guth Ventiltechnik GmbH
Horstring 16
D - 76829 Landau
+49 (0) 6341 5105-0Fax: +49 (0) 6341 5105-85
List of contents ....................................................................................................................... 2
1. Notes for the user.................................................................................................................... 3
1.1 Intended use ................................................................................................................ 3
1.2 Notes on the guarantee ...............................................................................................3
1.3 Safety instructions........................................................................................................ 3
1.4 Safety instructions........................................................................................................ 4
1.5 Safety tests .................................................................................................................. 4
1.6 Standards..................................................................................................................... 5
1.7 Danger symbols ........................................................................................................... 5
2. Technical Data ........................................................................................................................ 6
2.1 General description...................................................................................................... 6
2.2 Design of mixer ............................................................................................................ 7
2.3 Variants........................................................................................................................ 8
3. Electrical connection ............................................................................................................. 11
3.1 Connection diagram................................................................................................... 12
3.2 Operating voltages..................................................................................................... 12
4. Functional description ........................................................................................................... 13
5. Commissioning...................................................................................................................... 14
5.1 Checking the direction of motor rotation (before connecting to the tank)................... 14
5.2 Assembling the agitator shaft..................................................................................... 14
5.3 Connection to the container fitting ............................................................................. 15
5.4 Releasing the container fitting.................................................................................... 15
6. Cleaning ................................................................................................................................ 15
7. Maintenance and repair......................................................................................................... 16
7.1 Replacing the seals.................................................................................................... 17
7.2 Mixer designation ....................................................................................................... 17
8. Malfunctions .......................................................................................................................... 18
9. Transport, Packaging and Disposal ......................................................................................19
9.1 Transport and Packaging........................................................................................... 19
9.2 Disposal .....................................................................................................................19
10. Konformitätserklärung Declaration of Conformity................................................................ 20
List of contents
12.1.17
Mixers - replaceable RA models
1. Notes for the user 3
1. Notes for the user
1 . 1 Intended use
GUTH mixers are designed and constructed solely for commercial and industrial use. They are
used for mixing, stirring, distribution and homogenising purposes.
The mixer must be attached to the container by using appropriate fittings. The attachment and the
container must be designed to withstand the forces that occur. Stirring solid materials and materials
with a relatively high viscosity is considered as predictable and improper use of the mixer.
Do not use the mixer in a hazardous area!
1 . 2 Notes on the guarantee
All obligations arising in connection with the guarantee are contained in the General Terms and
Conditions of Guth Ventiltechnik GmbH.
1 . 3 Safety instructions
The mixer may only be fitted and commissioned by qualified personnel.
Based on the definition laid down in EN 60204-1. Qualified personnel:
A person who, on the basis of his or her specialist training, has acquired knowledge and experience
as well as knowledge of the relevant standards and can evaluate the work entrusted to him or her
and any possible hazards.
NOTICE
Please read this handbook carefully before you begin with the assembly of, commissioning of or
any other work connected with this mixer.
• The mixer may only be used for approved purposes.
• The GUTH company shall accept no liability for damage and operational malfunctions resulting
from failure to observe these instructions.
• Technical modifications resulting in deviations from the illustrations and information contained
in these instructions may be made without prior notice being given.
• The mixer may only be fitted and commissioned in accordance with these operating instruc-
tions.
• The manufacturing process did not take account of safety precautions in respect of external
fire.
• The mixer may only be converted or modified after consulting with the GUTH company.
• The original replacement parts supplied by the GUTH company serve the purpose of ensuring
safety. Should other parts be used, the GUTH company shall accept no responsibility whatso-
ever for any damage that may result.
• The mixer may only be disassembled when it is not connected to a voltage supply or under
pressure.
• Prior to repair and maintenance operations, the product line must be de-pressurised and free
of fluid product. Product residues and cleaning agents must be removed as well.
• Mixers that come into contact with hazardous media must be decontaminated.
• Never touch the mixer when hot liquids are being processed or the sterilization process is
underway.
• Never touch the rotating parts of the mixer.
• If hot or cold parts represent hazards, then these parts must be shielded against the possibility
of persons coming into contact with them by the plant operator.
• The mixer must always be rendered pressure-less during all assembly and disassembly work.
12.1.17
Mixers - replaceable RA models
1. Notes for the user 4
The mixer may only be fitted and operated by a trained person.
Based on the definition laid down in EN 60204-1.Trained person:
A person who is taught by a qualified employee about the tasks entrusted to him/her and the pos-
sible hazards caused as a result of improper conduct and if necessary trained and who has learnt
about the necessary protective equipment and protective measures.
1 . 4 Safety instructions
Failure to observe the specified hazard warnings may pose a risk to persons as well as the envi-
ronment, mixer and plant. Specifically, failure to observe the warnings may cause the following haz-
ards to arise:
• the failure of important functions of the mixer and the plant.
• the failure of prescribed methods for maintenance and repairs.
• hazards to persons caused by electrical, mechanical or chemical agents.
• environmental hazards on account of leakage of hazardous substances.
1 . 5 Safety tests
Safety tests "carried out by the manufacturer in the factory".
Safety tests according to DIN EN 60 204-1
- Continuous connection of the protective conductor system.
- Insulation resistance tests.
- Voltage tests.
- Protection from residual voltages.
- Functional tests.
- The functions of the electrical equipment, especially those which relate to safety and protective
measures.
ATTENTION
The mixer may only be operated when it is in perfect working order. In addition
to the documentation, instructions on the following also apply:
- Internal plant working and safety instructions
- National regulations in the country of implementation
- Generally accepted safety regulations
- Accident prevention regulations
DANGER
• The electrical connecting cable must be laid in a position where nobody can trip over it!
• Only assemble or disassemble the mixer when the mains plug has been pulled out.
• Please ensure that the container fittings are connected correctly to the filled container when
using the mixer.
• Close the container fitting before disassembling the mixer.
• Pay attention to ensure that you collect or divert the product liquid that is produced when
employing or removing the mixer.
• Avoid knocking over the electrical connecting cable.
• Please ensure that the electrical connecting cable does not cause an injury.
• Pay attention to the clockwise field of rotation when configuring the three phase current of the
motor. Otherwise two phases of the connecting cable must be exchanged by qualified electri-
cians.
12.1.17
Mixers - replaceable RA models
1. Notes for the user 5
1 . 6 Standards
The following directives are adhered to:
• 2006/42/EG (Machinery Directive)
• 2006/95/EG (Low Voltage Directive)
• 2004/108/EG (Electromagnetic compatibility)
Harmonised standards applied:
• DIN EN 60034-1; VDE 0530-1:2011-02:2011-02
(Rotating electrical machines - Part 1: Rating and performance)
• DIN EN 60204-1; VDE 0113-1:2011-01:2011-01
(Safety of machinery - Electrical equipment of machines - Part 1: General requirements)
• DIN EN 60034-9, VDE 0530-9:2008-01:2008-01
(Rotating electrical machines - Part 9: Noise limits)
• EN ISO 12100:2011-03
(Safety of machinery - General principles for design - Risk assessment and risk mitigation)
• DIN EN ISO 13857
(Safety of machinery - Safety distances to prevent danger zones being reached by the upper and lower limbs)
• DIN EN 614-1:2009-06
(Safety of machinery - Ergonomic design principles - Part 1: Concepts and general principles)
• DIN EN 1037:2008-11
(Safety of machinery - Prevention of unexpected start-up)
• DIN EN 60204-1; VDE 0113-1:2011-01:2011-01
(Safety of machinery - Electrical equipment of machines - Part 1: General requirements)
• DIN EN 61000-4-2; VDE 0847-4-2:2009-12:2009-12
(Electromagnetic compatibility (EMC) - Part 4-2: Test and measurement methods -
Testing the immunity to the discharge of static electricity)
• 3 GSGV / 9 GSGV
(German Equipment Safety Act Machinery Ordinance)
1 . 7 Danger symbols
Safety instructions and warnings serve to avoid danger to the lives and health of users or mainte-
nance personnel and damage to property. Attention is drawn to them by means of the symbols
defined here. The hazards are also highlighted where they may arise by means of danger symbols
(pictograms). The meaning of the pictograms is as follows:
Symbol Signal word Meaning
DANGER
Indicates that death, serious injury and/or major
damage will occur if the corresponding safety
precautions are not observed and implemented.
WARNING
Indicates that death, serious injury and/or major
damage can occur if the corresponding safety
precautions are not observed and implemented.
CAUTION
Indicates that minor injury and/or damage can
occur if the corresponding safety precautions
are not observed and implemented.
ATTENTION
Indicates that which may result in damages of
the product itself or of adjacent vicinity occur if
the corresponding safety precautions are not
observed and implemented.
NOTICE
This refers to important information about the
product itself or its usage to which special atten-
tion is to be drawn.
Indicates that death, serious injury and/or major
damage can occur as a result of an electric
shock if the corresponding safety precautions
are not observed and implemented.
12.1.17
Mixers - replaceable RA models
2. Technical Data 6
2. Technical Data
2 . 1 General description
Fields of application:
- Stirring of liquid to prevent the suspended substances and solids from settling and stir-
ring the wine yeast for biological acid reduction.
- Preparing uniform liquid mixtures also using different specific weights.
- Clarifying and homogenising the liquid during the diluting procedure.
- Mixing liquids with solid or gaseous products e.g. for distributing fining agents, sulphur-
ous acid or carbonic acid.
- Emulsifying sterile products and homogenised distillates
- Accelerating reactions and dissolving processes such as e.g. influencing fermentation
by dissolving sugar and sugar solutions.
- Enhancing the efficiency of the impact of heat and cold, e.g. equal liquid interspersion
for cooling procedures.
- Activating the weak fermentation yeasts.
Product-specific data:
Viscosity
> 20 baumé =36,34 Brix
1,2° Engler = 4 centipoise
(in accordance with a 36% 1.2°Engler = 4 centipoise sugar solu-
tion at 20°C)
Temperature range:
Mixer
from -20°C to 120°C
(product-specific, seal-specific)
Pressure range: • pressure-less (Standard)
• max. 10 bar
(Pressure may only be applied with a specific agitator shaft and flange
housing fastener! Please consult with )
Noise emission: < 70 dB (A)
Protection class: IP 54
12.1.17
Mixers - replaceable RA models
2. Technical Data 7
2 . 2 Design of mixer
No. Designation Pce.
1.0 Front part of mixer
1.1 Flange housing 1
1.2 Set collar 1
1.3 Interim flange 1
1.4 Hexagonal screw,
spring wascher 4
1.5 Gassing valve (optional) 1
2.0 Gaskets
2.1 Mechanical seal 1
2.2 Agitator shaft seal 2
2.3 Interim flange seal 1
2.4 Motor shaft seal 1
3.0 Agitator shaft
3.1 Agitator shaft 1
3.2 Agitator shaft coupling 1
3.3 Motor shaft coupling 1
4.0 Pivioting sash propeller 1
5.0 Hollow shaft motor 1
5.1 Front bearing shield 1
5.2 Rear bearing shield 1
5.3 Deep groove ball bearing 2
5.4 Rotor shaft 1
5.5 Fan impeller 1
5.6 Protective fan hood 1
5.7 Tensile screw 3-4
5.8 Cylinder screw 3-4
6.0 Motor protection switch 1
7.0 Cable connection 1
8.0 Carry handle
8.1 Handle 1
8.2 Cylinder screw 2
9.0 Protective cloth 1
Fig. 1 Mixer design Tab. 1
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Mixers - replaceable RA models
2. Technical Data 8
2 . 3 Variants
2 . 3 . 1 Mixer-types
Fig. 2 Mixer-types
RA 45 RA 110 RA 300 RA 25/100
Container contents Ltr. 20.000 50.000 100.000 20.000
Output KW 0,45 1,1 3,0 0,25/1,0
Voltage1V230-600 230-600 230-600 400
Frequency Hz 50/60 50/60 50/60 50
Speed U/min 1400/1700 1400/1700 1450/1750 750/1500
Weight Kg 16 27 42 23,5
Standard
construction length A440 475 675 475
Shaft2
(maximum length 1200mm)
B800 800 1000 800
C425 400 450 400
D18 18 28 18
Propeller EØ150/125
X25
Ø175/155
X30
Ø224/210
X35
Ø155
X30
dimensions in mm
Tab. 2 Mixer-types
1.Special length on request
2.Special voltage on request
Maximum shaft legth for each diameter and shaft speed with horizont mounting
Mixer type Ørpm. Restricted areas and maximum shaft length
RA 45
RA25/100
RA110
18 1400 530 - 710 1200
1700 450 - 650 1200
RA300 28 1450 750 - 1050 1500
1750 670 - 925 1500
Free shaft length (mm) 500 1000 1500 2000
CAUTION
• The agitator shafts with special lengths that exceed these lengths may only be attached in the
vertical position. If the agitator shaft is installed horizontally, there is the risk that it will bend by
90°.
12.1.17
Mixers - replaceable RA models
2. Technical Data 9
2 . 3 . 2 Types of propeller
2 . 3 . 3 Accessories
Pivioting sash propeller
The pivoting sash propeller (standard) is primarilyused to
ensure installation on closed and filled containers. It is
introduced into the container fitting in a folded state and
unfolds when the device is started.
Triple vane propeller
Due to its robustness, the triple-vane propeller enhances
the process of dissolving sugar, fining agents and similar
substances in open containers or tubs.
Fig. 3 Propeller-types
Mixing head
The mixing head is a triple-vane propeller with an addi-
tional protective ring. This ensures that damage caused
from stirring in open containers is avoided.
Gassing device
A special flange housing enables direct gassing with sul-
phur dioxide, carbon dioxide and similar elements when
the agitator shaft is rotating. This enables the gases
being fed to the liquid to be mixed thoroughly immedi-
ately upon influx.
Fig. 4 Accessories
Tapping pipe
The tapping pipe with union nut enables the GUTH mix-
ers to be installed on the flap gates and similar fittings
without the agitator shaft being damaged upon being
introduced and removed.
12.1.17
Mixers - replaceable RA models
2. Technical Data 10
2 . 3 . 4 Support pedestal
The mobile support pedestal supports the mixer that is attached to the container fitting and in use
and enables particularly ergonomic working conditions. It is required for the RA 300 model to ease
the burden on the connection fitting.
„OVERLYING“ configuration
„SUSPENED“ configuration
Size
0 1 2 3
F250 250 250 250
G 500 500 500 700
H1 450 500 650 950
H2 600 700 1000 1500
H3 1060 1060 1060 1060
H4 170 170 170 170
RA 45
A 440 440 440 440
C425 425 425 425
E 420 420 420 650
RA 110
A 475 475 475 475
C400 400 400 400
E 420 420 420 650
RA 300
A 675 675 675 675
C450 450 450 450
E 470 470 470 700
(dimensions in mm)
Tab. 3 OVERLYING support pedestal
Fig. 5 Support pedestal
Standard configuration
A435
B600
C 1200
V1 300 - 1000
V2 300
(dimensions in mm)
Tab. 4 SUSPENDED support pedestal
NOTICE
• If the container with the container fitting has not been designed to carry the weight of the mixer,
it is necessary to use the mobile support pedestal.
12.1.17
Mixers - replaceable RA models
3. Electrical connection 11
3. Electrical connection
The motor protection switches with undervoltage release meet the requirements in preventing the
mixer from starting up automatically after there has been a power failure and the voltage has
returned.
The mains voltage and frequency must correspond to the rating data specified on the rating plate.
Direction of rotation
The direction of rotation of the motor must correspond to the direction arrow indicated on the motor.
It is possible to reverse the direction of rotation by exchanging any mains conductor.
Connection
The connection cable is designed with a cable cross section of 1.5² mm and a fuse of 16A (VDE
0100).
Minimum requirements for the cable and plug:
Tab. 5
NOTICE
• The motors are designed for ambient temperatures of -30°C to +60°C and installation heights
of 4000m above mean sea level. The conditions at the installation point must correspond to
all rating plates.
Cable Plug
Flame retardant according to IEC 60334-1-2
Resistance according to DIN EN 50290-2-2
(TM54) with strain relief and anti-kink cable protection
VDE-certified VDE-certified
IP 44
We use Lapp cables:
- up to 500V: Ölflex® Classic 110
-
- from 500V: H07ZZ-F
We use Mennekes plugs:
- up to 415V:Stecker StarTOP® with
Safe CONTACT
- from 415V: country specific
DANGER
Low voltage machines have dangerous live and rotating parts and potentially hot surfaces.
All work relating to transport, connection, commissioning and maintenance must be carried out
by qualified and responsible specialists (Please adhere to EN 50110-1/VDE 0105 Part 1, IEC
60364).
The work on the stationary machine must be carried out when it is switched off and the machine
must be secured to prevent it restarting again.
12.1.17
Mixers - replaceable RA models
3. Electrical connection 12
3 . 1 Connection diagram
Fig. 6 Connection diagram
3 . 2 Operating voltages
Tab. 6 Operating voltages
RA 45 RA 110 RA 300 Ra 25/100
Operating voltage (V) Hertz (Hz) Phases Nominal current (A)
110 60 3 4,6 9,7 - -
200 50 3 2,4 5,2 - -
208 60 3 2,4 5,1 - -
230 50 3 2,3 4,9 11,5 -
230 60 1 3,5 - - -
230 60 3 2,0 4,5 11 -
400 50 3 1,4 2,8 6,6 1,05/2,5
415 50 3 1,3 2,6 - -
440 50 3 1,45 2,6 - -
440 60 3 1,25 2,6 - -
460 60 3 1,2 2,7 - -
480 60 3 1,45 2,8 6,8 -
550 60 3 - 1,9 5,7 -
575 60 3 0,85 1,85 5,8 -
600 60 3 0,8 - 5,5 -
12.1.17
Mixers - replaceable RA models
4. Functional description 13
4. Functional description
The RA mixer was designed for mixing and stirring liquids in containers in the food sector.
The mixer is put into operation using a start switch fitted on the side of the motor that has an under-
voltage release.
All metal components that come into contact with the product were made from stainless steel.
The mixer is connected to the filled container
- by the corresponding container fitting
- angle seat valve
- straight-through valve
- sluice gate
and the flap gate.
The retractable agitator shaft can be attached to the front of the container and the propeller can be
inserted into the medium without causing a loss of liquid or pressure. The special bearing of the
agitator shaft in the hollow shaft of the electric motor ensures that the mixer operates quietly and
without vibrating. The mechanical seal will operate without malfunctioning if subjected to a load of
up to 10 bar over the long-term.
CAUTION
When switching on or switching off the device, a minimum quantity of the fluid product will
escape. It is important to ensure that the fluid product is fed away securely!
NOTICE
• The under-voltage release prevents the risk caused by a sudden start-up in the event of an
unintended power connection. This is achieved by the machine becoming fully-functional
again after the triggered switch is actuated.
CAUTION
Risk of injury or damage to the agitator vane, etc. !
• It is not permitted to switch on the device without attaching it to the container and snapping in
the agitator shaft coupling!
CAUTION
• Pressure may only be applied with a specific agitator shaft and flange housing fastener.
• Please note that a special mechanical seal is required when the mixture is stirred aggressively.
12.1.17
Mixers - replaceable RA models
5. Commissioning 14
5. Commissioning
Fig. 7 Assembly
5 . 1 Checking the direction of motor rotation (before connecting to the
tank)
- Connect the device to the mains.
- Rotate the switch from position "0" to position "I".
- It is possible to check whether the direction of rotation of the motor corresponds to the direction
arrow indicated on the motor by briefly letting the device run.
- If they do not correspond, the polarity of the connection cable must be reversed on the device
plug (otherwise the pivoting sash propeller will become loose from the agitator shaft while using
the mixer and will be lost in the container).
5 . 2 Assembling the agitator shaft
The motor and agitator shaft are delivered disassembled for transport reasons.
- First of all, unscrew the pivoting sash propeller (Pos. 4) from the agitator shaft (Pos. 3.1) (Left-
hand thread!).
Key surfaces are provided on the propeller hub for unscrewing and tightening the propeller. If
the propeller is too tight, the shaft can be held down firmly on the agitator shaft coupling.
- Following this, push the agitator shaft through the opening of the motor shaft coupling (Pos.
3.3) from the coupling side of the motor until the thread of the agitator shaft is completely visible
on the connection side of the motor.
- Tighten the pivoting sash propeller (Pos. 4) again on the agitator shaft (Left-hand thread!).
- Pull the agitator shaft back to the stop.
- The mixer is now ready for connection.
4.0 3.1
9.0
3.3 3.2
DANGER
The mains plug must be inserted into a socket after being checked.
NOTICE
• The mechanical seal can also be damaged by operating in the wrong direction.
• It is vital to avoid dry running the mechanical seal when the mixer is in operation.
NOTICE
• Do not hold down on the shaft firmly as this will result in the agitator shaft being damaged and
you will also damage the seal when retracting it!
12.1.17
Mixers - replaceable RA models
5. Commissioning 15
5 . 3 Connection to the container fitting
Use the following procedure to connect the fitting:
(see image 6)
- Check whether the container fitting (Pos. 9) is closed and if necessary close it.
- Release and remove the sealing cap of the fitting so that the fitting thread is free for connecting
the mixer.
- Put the mixer with retracted agitator shaft on the thread, screw the union nut on and pull the nut
tight using an appropriate key.
- Open the container fitting. The connected mixer will caulk.
- Push the agitator shaft completely through the hollow shaft to the connection side of the motor.
- Hold the motor shaft coupling tight with your left hand (Pos. 3.3).
- Rotate the agitator shaft coupling to the right with your right hand (Pos. 3.2) until the coupling
pin snaps into the notch.
- Put the mains plug into the socket.
- Switch the mixer on by turning the start/stop switch to the position "I".
5 . 4 Releasing the container fitting
Use the following procedure to release the container fitting:
(see image 6)
- Switch the mixer off by turning the start/stop switch to the position "0".
- Remove the mains plug.
- Hold the motor shaft coupling tight with your left hand (Pos. 3.3).
- Rotate the agitator shaft coupling to the left with your right hand (Pos. 3.2) and release the cou-
pling pin from the notch.
- Pull the agitator shaft (Pos. 3.1) completely back through the hollow shaft to the connection side
of the motor up to the stop.
- Close the container fitting.
- Unscrew the union nut using an appropriate key and remove the mixer.
6. Cleaning
Before cleaning, maintenance and repair work, the following switch-off procedure is to be main-
tained without fail:
- Ensure that the mixer is disconnected from the mains. (Switch off the start/stop switch and
remove the mains plug.)
- Close the product inlet. (Block the container fitting.)
- Disassemble the mixer.
Daily cleaning (Quick cleaning)
Only clean using water between the individual working intervals. Do not use a cleaning agent as
this will require thorough rinsing.
Complete cleaning
A complete cleaning procedure must be carried out every six months along with the container clean-
ing with the system at a standstill.
WARNING
• In case of non-compliance, this can endanger life and limb of the personnel!
12.1.17
Mixers - replaceable RA models
5. Commissioning 16
No special cleaning agent is required for cleaning stainless steel parts.
Use alcohol or steam in the event of a disinfection.
The flange housing with the thread connection is disassembled and cleaned once a year.
Use a scrubbing or synthetic brush to clean the stainless steel parts.
7. Maintenance and repair
GUTH mixers are maintenance-free. The agitator shaft, pivoting sash propeller and the connection
side of the mixer must be cleaned or rinsed with water after use. It is then recommended to grease
the agitator shaft with suitable grease.
NOTICE
If cleaning agents or cleaning tools are used other than those recommended or if the device is
mishandled, the guarantee for the resulting damage will lapse!
ATTENTION
• Cleaning agents that contain sodium hydroxide or other high alkaline agents with chlorine, bro-
mine, iodine or fluorine additions, potassium oxide, chlorine-based products, ammonium com-
pounds, quaternary hydrochloric or hydrofluoric acid must not be used, as these agents cor-
rode the stainless steel surface.
ATTENTION
• Please pay attention to the instructions on the safety data sheets of the cleaning agent manu-
facturer. The instructions must be adhered to. The customer must provide evidence that the
cleaning agent has been applied correctly.
WARNING
• All work on the stationary machine must be carried out by qualified specialist personnel when
it is switched off and secured to prevent it from restarting again.
Check if the machine is free of voltage!
ATTENTION
• We would like to point out that spare parts and accessories that we have supplied are not
checked and approved by us either. The installation and/or the use of these products may
therefore under certain circumstances have a negative effect on the design properties of the
mixer.
CAUTION
When carrying out cleaning and maintenance work, electrical components such as motors,
switches, etc. must not be sprayed directly!
NOTICE
Maintenance intervals:
Practical maintenance intervals can only be determined empirically by the user as they depend
on the conditions of operation involving, for instance, hours of use per day, switching fre-
quency, type and temperature of the product, type and temperature of the cleaning agent,
surrounding conditions.
12.1.17
Mixers - replaceable RA models
5. Commissioning 17
7 . 1 Replacing the seals
7 . 2 Mixer designation
Each mixer carries a designation. This may be found on the motor housing or on the protective fan
hood.
Examples for designation:
Please provide this number with every replacement part order!
Front design 1 Remove the hexagonal screws with the spring
washer (Pos. 1.4) and take off the flange housing
(Pos. 1.1).
2 Remove the hexagonal socket screws of the set
collar (Pos. 1.2) and take it off.(Spring pre-ten-
sioning)
3 Pull the mechanical seal (Pos. 2.1.1) out from
above.
4 Remove the interim flange (Pos. 1.3) from the be
ring shield (Pos. 5.1).
5 Remove the seal rings (Pos. 2.2 and Pos 2.4).
6 Remove the interim flange seal (Pos. 2.3) and the
mechanical seal (Pos. 2.1.1).
7 Assemble in reverse order. The hexagonal socket
screws of the set collar (Pos. 1.2) are secured from
being unscrewed!
Rear swing arm
Fig. 8 Replacing the seals
After removing the agitator shaft, the seal ring can
be removed using a suitable tool and exchanged.
2.2
1.2
1.1
2.1.1
1.4
2.32.1.22.41.35.1
2.2
12.1.17
Mixers - replaceable RA models
8. Malfunctions 18
8. Malfunctions
Fig. 9 Malfunction
Malfunction Cause Remedy
No function possible • Plug connections of the power supply are
loose
• Emergency switch not engaged
• Check and attach the mains plug
• Engage fan hood aperture
Pivoting sash propeller does not
open
• Vanes are deformed
• Vanes are stuck together
• Replace pivoting sash propeller
• Clean carefully
Mixer shaft oscillates very power-
fully
• Pivoting sash propeller does not open
• Bend the shaft
• Motor shaft bearing has been worn down
• Clean carefully or replace the pivoting sash pro-
peller
• Replace the shaft and check the pivoting sash
propeller
• Send the entire mixer to be repaired
Liquid runs out of the leakage
holes onto the flange housing
(mixer connection side)
• Mechanical seal or motor shaft seal has
been damaged
• Send the entire device to be repaired or replace
the spare parts
Liquid runs out of the shaft cou-
pling (coupling piece)
• Agitator shaft seal has been damaged • Send the entire mixer to be repaired or replace
the spare parts
High noise level • Bearing of the motor is damaged • Send the entire mixer to be repaired or replace
the spare parts
ATTENTION
• Do not replace the centred agitator shafts when they are fully operational as they will cause the
shaft to rotate unevenly. This will cause the motor shaft bearings to swing out and destroy the
mechanical seal and the motor shaft seal.
Depending on the extent of the damage, the liquid enters into the motor and may cause a short
circuit.
12.1.17
Mixers - replaceable RA models
9. Transport, Packaging and Disposal 19
9. Transport, Packaging and Disposal
9 . 1 Transport and Packaging
Prior to transport, the mixers are carefully checked and packed. However, the possibility of damage
during transport cannot be excluded.
Unpacking:
Remove the protective caps (if present) and any remaining packaging.
Receiving inspection:
Check the received mixer against the delivery note to ensure that no parts are missing!
If damage is discovered:
Check the delivery for damage (visual inspection)!
In case of complaint:
If the delivery has been damaged in transit:
- Get in touch immediately with the last shipper!
- Keep the packaging (in case the shipper wishes to inspect it or for returning the goods).
Packaging for returning goods:
If possible, use the original packaging material.
- If queries arise in connection with packaging and transport safety please contact Guth Ven-
tiltechnik GmbH.
Storage in open air:
Storage in the open air is not permitted.
Storage in closed spaces:
Storage conditions:
- Temperature: 0°C bis 30 °C
- Humidity (air): < 60 %
9 . 2 Disposal
The mixer is made mainly of steel (with the exception of electrical components and seals). They are
to be disposed of according to locally valid environmental protection regulations.
Cleaning agents must be disposed of in accordance with local regulations and the manufacturers'
instructions on the safety data sheets.
Konformitätserklärung
Declaration of Conformity
This manual suits for next models
3
Table of contents
