Ruhle MGR 900 User manual

Rühle GmbH, Beim Signauer Schachen 10, D-79865 Grafenhausen
Tel.: [phone], Fax: [phone]
www.original-ruehle.de
⑬⑭
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⑪
⑩
③
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⑦
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①
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⑧
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1) Main switch
2) Type plate
3) Operation panel
4) Emergency stop button
5) Condensation flap
6) Machine foot
7) Blank plug
8) Mixing arm
9) Tumbling arm + Ring
10) Accessories
11) Drum
12) Lid
13) Trolley
14) Lift system
15) Bail wire rope
recipe start
(Quick help)
(Manual control)
Push button scroll recipes
Quick installation guide MGR 900
•Installing the machine
I
•Operation
II
•Recipe selection / recipe start

MGR 900
Copyright © 2021 by Rühle GmbH
01.25.2021 (v. 2.0)
Time
Temperature
Revolutions
tumbling arm
Revolutions
mixing arm
Vacuum
Drum position
Recipe name
Status
information
Programming recipes
Factory setting
password "0"
Save
Single phases
Name
Keyboard
Button
movement arms
during
discharge
Button tumbling
arm
Button drum
position
Button mixing
arm
Start button refrigeration
Button individual mode of both arms
Button slow mode of both arms
Button lid position
Button lift system
Stop button
•Recipe selection / recipe start
•Programming recipe
•Manual settings
•Cleaning
III

Lebensmitteltechnik
Translation of the original instructions
- Miknetum
Type: MGR 900
Rühle GmbH, Beim Signauer Schachen 10, 79865 Grafenhausen
Germany
Tel.: [phone], Fax: [phone]
www.original-ruehle.de

Miknetum MGR 900
2
Table of Contents
1 Safety Instructions............................................................................. 3
1.1 Safety instructions ................................................................... 3
1.2 Remaining risk of accidents .................................................. 6
1.3 Intended Use............................................................................... 6
2 Installation instructions ................................................................... 7
2.1 Machine transport and setup ............................................... 7
2.2 Workplace description............................................................. 8
2.3 Connecting the machine ......................................................... 9
3 Operating instructions....................................................................10
4 Cleaning instructions.......................................................................12
4.1 Safety instructions .................................................................12
4.2 Cleaning agents and disinfectants....................................13
4.3 Cleaning procedure.................................................................14
5 Service: Care, maintenance, repair.............................................15
5.1 Regular care..............................................................................15
5.2 Regular maintenance.............................................................16
5.3 Repair and spare parts..........................................................17
6 Disposal................................................................................................17
7 Technical documentation ..............................................................18
7.1 Technical data..........................................................................18
7.2 Electrical circuit diagram ......................................................19
8 EC Declaration of Conformity according to Directive
2006/42/EC........................................................................................20
Status: 05 December 2022 (Version 2.2)
Changes reserved

Miknetum MGR 900
3
1Safety Instructions
!!! Observe the safety instructions during the installation, operation,
cleaning and maintenance of the Rühle Miknetum!
Hazard potentially causing irreversible injuries if
disregarded.
Warning, potentially causing serious injuries if
disregarded.
Note
Work on electrical equipment of the machine may only
be carried out by qualified technicians!
Always disconnect machine from the mains during this
process!

Refrigeration installer
These work activities may be carried out only by a
refrigeration installer! Disregard may result in injuries.
Warning of hot surface.
Warning of suspended load.
1.1 Safety instructions
!!! A supervisor (responsible person) must be appointed for the
machine!
This person must:
a) Completely read and understand these operating instructions
before transport, commissioning, setup, operation, cleaning,
decommissioning, care / maintenance as well as dismantling /
disposal!
b) Prepare work instructions for the intended and safe
transport, commissioning, setup, operation, cleaning,

Miknetum MGR 900
4
decommissioning, care / maintenance as well as dismantling /
disposal!
c) Make sure that the qualified workers have completely read
and understood the respective work instructions according to
section 1.1b!
d) Proper functioning of the protective devices must be checked
at least once a year by a Rühle service technician!
e) Provide personal protective equipment!
All life cycles phases:
Wear foot protection!
Wear hand protection!
Wear protective clothing!
Cleaning; care / maintenance; dismantling:
Wear eye protection!
Use light breathing mask!
Care / maintenance:
Wear hearing protection!
!!! The operator must operate the machine according to the intended
use and strictly observe all points listed in the “Operation” work
instructions prepared by the supervisor.
!!! Before putting the machine into operation for the first time and on
each working day, the operator must check the functionality of the
following safety devices:

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5
a) Visual check for changes or damages on all machine sides
and accessible machine parts, e.g. steel cables and chain. The
machine must be shut down in the event of any damages or
changes!
b) Check the safety switches as follows:
–Start the machine. –Press the emergency-stop switch. –If
the machine has not switched off, it must be shut down
immediately!
!!! To shut down the machine, the emergency-stop switch must be
pushed to “Emergency-Stop”, the main switch turned to “0” - OFF" and
the power plug pulled from the outlet! The machine must be secured
against further use!
!!! The supervisor must arrange for the repair of the non-functional
safety device by a Rühle service technician. Until the corresponding
parts have been repaired, the supervisor must ensure that the
machine or parts of the machine are under no circumstances put into
operation!
!!! The cleaning personnel must observe the work procedures from the
“Cleaning” work instructions prepared by the supervisor.
!!! The maintenance personnel may only carry out work specified as
“Regular care”, unless any other authorisation has been issued in
writing by the manufacturer of the machine. The maintenance
personnel must observe the work procedures from the “Maintenance”
work instructions prepared by the supervisor.
The power plug must be disconnected for maintenance work!
!!! The machine may not be modified.
!!! Only Rühle spare parts and accessories may be used.
!!! The operating instructions as well as all other technical documents
included must be supplied completely when reselling the machine.

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1.2 Remaining risk of accidents
!!! All life cycles phases
Error messages of the operating system must be heeded!
Non-compliance is strictly prohibited!
There is a risk of crushing between motor protection and
machine base cover. Staying in the swivel range of the
drum is therefore strictly prohibited!
!!! All life cycles phases

Work on the cooling unit and cooling system may only be
carried out by a refrigeration installer!
!!! All life cycles phases
Staying beneath the lifting aid (standard trolley support)
and reaching into the area of moving parts is strictly
prohibited. The standard trolleys provided must be used!
!!! Maintenance
The machine must be disconnected from the mains when
performing maintenance work!
The protective covers may be removed only while
performing maintenance (control cabinet, side cover)!
Beware of hot or cold surfaces, e.g. drives, cooling, unit,
etc., during maintenance work!
1.3 Intended Use
The Miknetum has been solely designed for mixing,
salting/seasoning, marinating and tumbling meat products and salads.
The max. room temperature may be 12 °C for reasons of food
hygiene!
This machine is designed for operation by a person over 18 years old!

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Claims of any type because of damages due to non-
intended use are ruled out!
Misuse:
•Any use other than the one listed above is strictly prohibited
and is considered misuse!
•Operating the machine in explosion hazard areas is
prohibited!
•Handling / processing products and materials not belonging
to food products is prohibited!
•The lifting aid may be used only for the standard trolleys
provided and must not be overloaded! Lifting of persons is
strictly prohibited!
2Installation instructions
Installation and commissioning of the machine may only be carried
out in the presence of a Rühle service technician or by persons
authorised by Rühle.
Rühle GmbH Lebensmitteltechnik shall not be liable for any damage
resulting from non-compliance with these operating instructions.
2.1 Machine transport and setup
Please refer to the short instructions supplied with the machine
regarding transport and setup of the Miknetum.
The machine and machine parts must be transported by 2
persons (1x operator of floor conveyor / 1x transport
supervision).
The power supply line must not be damaged by driving
over or pinching it!
The machine must be decommissioned until a damaged
power supply line has been repaired!

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Make sure the machine is stable!
Make sure the machine bases have contact with the
setup surface and are then tightened!
Ensure that the max. filling quantity of 400 kg per
standard trolley is not exceeded!
Foundation load: 9,4 kN/m²!
Set up the machine on a solid level floor with sufficient
load bearing capacity!
2.2 Workplace description
The work area around the machine is at least 0.5 m on all sides; for
maintenance work it is at least 1 m; if used as passage way, it is at
least 1.2 m.
Swivel range of lid

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2.3 Connecting the machine
The machine is connected to a three-phase current outlet; its data
(voltage, amperage) must agree with the specifications on the type
plate of the machine.
The machine must be decommissioned until a damaged
power supply line has been repaired!
The power supply line must be regularly checked!
Check the correct rotational direction of the machine by
starting it. A message appears on the display in case of
incorrect rotating field.
•In such a case, an electrician must change the
direction of rotation inside the mains plug.
•The power supply to the machine must be fuse-
protected with 32 A secured with an AC/DC sensitive
ground-fault circuit interrupter (type B).
Swivel range of drum
Swivel range of
standard trolley
support

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10
3Operating instructions
Please refer to the short instructions supplied with your machine for
the operation of your Miknetum.
Follow also the safety instructions in Chapter 1.1!
Depending on the user programs, the lid and drum are
moved automatically. While the program is running, no
person may stand within the working range of the
machine (front distance at least 1.2 m over the entire
machine width).
When the drum moves automatically a 5 second starting
alert (horn) sounds.
If the power fails when a user program is being executed
the machine will react as follows when the power supply
is reinstated: it will start up again automatically and the
program will continue from that point at which it was
interrupted by the power failure.
In its respective life cycle phases (transport,
commissioning, setup, operation, cleaning,
decommissioning, care / maintenance, dismantling /
disposal) this machine is designed for 1-person operation!
When using this machine, no other person may be present
near the machine. The exception (2-man operation):
•Installation and removal of drum lid
•Installation and removal of drum lid arms
•Installation and removal of tumbling stripper arm
•Installation and removal of mixing arm
•Installation and removal of standard trolley support
•Installation and removal of protective gearbox cover
•Transport of machine and machine parts
•Maintenance work inside the drum
Depending on the user programs, temperatures down to -
10 ℃may be generated in the drum. Take the
corresponding precautions.

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Do not touch the tumbling stripper arm / mixing arm with
your hands or any object when they are moving! Their
rotational speed while the lid is open is restricted for
safety reasons!
Make sure before each lifting operation that the standard
trolley sits correctly in the standard trolley support of the
lifting aid and that it is locked!
No person may be present in the swivel range of the
drum!
The drum can only be swivelled after the lifting aid has
moved to the bottom. Prior to starting a recipe, the lifting
aid must therefore be moved down again!
When emptying the drum corresponding appropriate
precautions must be taken to ensure that no person
stands in the discharge area of the machine!
Make sure when mounting (or adjusting) the tumbling
stripper arm, mixing arm (alternative blind plug), standard
trolley support as well as the chain on it that the
pertaining locking pins are correctly locked!
No person may stand in the swivel range of the lid!
The operator must make sure that no persons, who do not
know the hazards of the machine or cannot anticipate
them, are about in the area of the machine!
If the drum is inclined downwards and you aerate the
drum or even open the lid, the goods will fall out of the
machine.
Each time before you start working, make sure that the
drum lid seal has been inserted correctly. For this, check
during program start whether a pressure loss is indicated
on the pressure display (if the machine can create a
vacuum). If this is the case, the gasket has been mounted
correctly. Otherwise check the gasket.
The lid cannot be opened when there is a vacuum in the
machine or if it has not yet been fully aerated.
If you interrupt a program by pressing “Pause”, you will be
prompted to aerate when “Open lid” is actuated. Only

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after the drum has been evacuated will you be able to
open the lid by actuating it again.
Within a program you may aerate the machine before the
lid shall be opened.
The drum can be set to any position between 20° and
100° (= discharging position) so that it can be used for
any operating process.
The control panel may only be operated by touching it
with the fingers. Using any objects (e.g. blade) is
prohibited!
4Cleaning instructions
The Miknetum has been designed to allow for complete cleaning of all
parts that come into contact with the food product.
4.1 Safety instructions
•Follow also the safety instructions in Chapter 1.1!
•The cleaning staff must notify the supervisor immediately of any
defects on the machine!
•The cleaning staff must use the specified cleaning agents and
disinfectants!
•Germ reduction is achieved only by correct cleaning and
subsequent disinfection!
•Appropriate material (e.g. brushes, rags, ...) is required and must
be provided for the proper procedures of the above!
•Cleaning products and disinfectants approved for the food
product area and suitable against contamination (e.g. protein,
limescale, ...) must be used!
•The cleaning agents and disinfectants must be prepared to a
solution as described in the product data sheet of the
manufacturer!
•Personal protective equipment must be worn!

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Cleaning with high-pressure cleaners
is permitted only for:
•all outside surfaces,
•drum,
•drum lid and drum lid seal,
•intake filter and air intake pipe,
•tumbling stripper arm,
•mixing arm and
•blind plug
The control panel must be cleaned manually and may not
be exposed to a water jet!
All other parts and surfaces may be cleaned only with
normal water pressure!
4.2 Cleaning agents and disinfectants
Recommended cleaning agents and disinfectants:
Art.
No.
Product name
Description
pH
value
Concentration
for
application
[%]
Exposure
times
[min]
Temperatures
[°C]
15207
FINK –Spül ASS
Alkaline
foam
cleaner, mild
alkaline
1.0 –5.0
5 –15
20 –50
daily
19402
FINK -
Superfettlöser
Alkaline
foam
cleaner
0.5 –5.0
5 –20
20 –50
10030
FINK –FC 30
Cleaning
and
disinfection,
combined
1.0 –3.0
5 –15
20 –50
18556
FINK –FC
Powerfoam A2
Alkaline
foam
cleaner
1.5 –3.0
5 –20
20 –50
13308
*)
FINK –Antisept G
Disinfectant
for spray
application,
QAC
0.5 –3.0
5 –15
20 –40
17107
FT 107 DES
Disinfection
2.0 –5.0
15 –30
20 –40

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13302
FINK –Antisept A
Alcohol-
based
disinfectant
neutral
100
5
RT
daily
13304
FINK –Antisept E
Alcohol-
based
disinfectant
100
5
RT
18803
FINK –Alu-
Reiniger
Acid foam
cleaner
acid
2.0 –5.0
5 –15
20 –50
Once in 2 weeks
17043
FT 43 SR
Acid foam
cleaner
1.0 –5.0
5 –15
20 –50
18550
FINK –FC
Powerfoam S1
Acid foam
cleaner
1.0 –2.0
5 –20
20 –50
17310
Ökoron® 10
Disinfectant,
acid
0.3 –1.0
20 –30
5 –70
17307
Ökoron® 7S
Disinfectant,
acid
0.5 –2.0
1 –20
5 –60
17312
Ökoron® 12
Acid
disinfection
0.5 –3.0
5
Cold
17313
Ökoron® 13
Acid
disinfection,
foamable
0.1 –1.0
5
45
17900
Ökoron® SR
Ecological
cleaner
acid
1.0 –5.0
15 –20
20 –55
daily
*)
13308, FINK –
Antisept G
Because of customer-specific application prohibitions, QAC-containing
products are sometimes not used since the IFS standard must be met.
Possible alternative products would be, for example, FT 107 DES.
Supplier:
FINK TEC GmbH, Oberster Kamp 23, 59069 Hamm, Germany
Tel. [phone] / [email protected] / www.finktec.com
4.3 Cleaning procedure
Please refer to the short instructions supplied with your machine for
carrying out the cleaning procedure.
Cleaning preparations:
•To ensure optimum cleaning, some components of the machine
must be removed.
•Remove the mixing arm and the tumbling stripper arm from the
drum!

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•Simply pull off the stripper rubber at the tumbling stripper arm
from the outside to the inside.
•Pull the drum lid seal off the inside of the drum lid!
•Remove the intake filter at the upper lid edge out of the bracket.
5Service: Care, maintenance, repair
Any work related in any way with service may be carried out only by
Rühle service technicians and by persons authorised by Rühle in
writing. In this regard, a distinction is made between regular care and
maintenance and repair. The respective qualification certificate must
be issued explicitly for the corresponding work.
Follow also the safety instructions in Chapter 1.1!

Only qualified technicians may carry out repairs on the
cooling system of the machine!
Notify and obtain permission from Rühle customer
service if welding or cutting work is required on the
machine!
Make sure when working on the electrical equipment of
the machine that
•this is only done by qualified personnel!
•the machine is always disconnected from power!
•a waiting time of at least 10 minutes is observed
after switching off the machine to allow the
capacitors of the frequency converters to discharge
to a harmless voltage level!
5.1 Regular care
Regular care of the machine must be carried out at least once per
week. This prevents malfunctions and signs of wear.

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Any abnormalities detected during regular care must be reported to
the supervisor! He must immediately initiate correction or
maintenance or notify Rühle Service!
Care schedule:
a) Disassemble the machine according to the cleaning
instructions. Check for any parts moving with difficulty,
material abrasion or other signs of wear and tear.
b) Check hygienic condition and function of drum lid seal!
c) Check function and firm seating of the closures at the
tumbling stripper and mixing arms (or blind plugs)!
d) Check hygienic condition of the stripper rubber on the
tumbling stripper arm!
e) Clean air intake pipe thoroughly!
f) Check the drum positioning; contact Rühle service if
necessary!
g) Check the lifting aid (standard trolley support)!
h) Check the drum lid holder!
i) Check the chain lock for flawless function!
j) Visually check the chain for wear!
k) Visually check the steel cable for fraying!
5.2 Regular maintenance
Regular maintenance of the machine must be carried out every 2000
hours of operation but at least once per year.
Maintenance schedule:
a) Inspect the safety devices as outlined in Chapter 1.1 Safety
Instructions!
b) Test run with open machine (caution: moving parts)!
c) Check air filter and air oil separator of the vacuum pump and
replace, if necessary!
d) Change oil of the vacuum pump!

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e) Check cooling performance of the refrigeration unit; service, if
necessary, and clean condenser!
f) Check function of pressure transmitters and temperature
sensors!
g) Inspect the hoses (vacuum system)!
h) Check radial shaft seals for leak tightness; replace otherwise!
i) Read the error memory (frequency converter)!
5.3 Repair and spare parts
As a damaged part on a machine is usually damaged due to causes
unrelated to the part, always carry out a fault diagnosis.
For this reason, contact our Service Hotline at [phone] for
spare parts or technical faults. Please keep the machine type and
number ready.
6Disposal
All materials and operating fuels must be separated and
disposed of in accordance with nationally applicable
regulations!
1. The machine contains a cooling system filled with the
refrigerant R404A. It must be pumped off by a refrigeration
installer and must then disposed of correctly!
2. The following components contain oil:
a. Lid drive
b. Tumbling stripper arm drive
c. Mixing arm drive
d. Slewing gear
e. Lifting aid drive
f. Vacuum pump
g. Compressor (cooling unit)

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All gears/motors except for the compressor are equipped with
oil draining screws. The compressor must be drilled open for
draining the oil.
7Technical documentation
7.1 Technical data
Connection voltage: 400 V 50/60 Hz 3-phase AC / N / PE
Power consumption: 16.1 kW
Full-load current: 31.4 A
Back-up fuse max.: 32 A
Protection class: IP54
Protection class: 1
Ambient temperature: +2 to 40 °C
Dimensions, W x H x D: 2183 x 3327 x 3488 mm
Machine weight: 2100 kg
Transport weight: 2600 kg
Container size: 900 litres
Max. filling: 675 litres
Refrigerant: R404A, 0.76 kg
Mixing arm speed: -25 to +25 rpm
Tumbling arm speed: 0 to +25 rpm
Vacuum: 0 –95 %
Lifting aid, load capacity: 400 kg
Foundation load: 9,4 kN/m²
Emission sound pressure level: LpA ≤ 70 dB(A)
Measured according to: DIN EN ISO 11201
accuracy class 2
Measured: while idling without product,
at maximum speed
The data on the type plate principally applies; it is located at the rear
of the machine next to the power supply line. In case of deviations
contact the manufacturer for a written confirmation of the data!