Rühle GR 50 User manual

Lebensmitteltechnik
Translation of the original instructions
- Frozen meat cutter
Type: GR 50
Rühle GmbH, Beim Signauer Schachen 10, 79865 Grafenhausen
Germany
Phone: [phone]; fax: [phone]
www.original-ruehle.de

Frozen Meat Cutter GR 50
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Table of contents
1 Safety instructions............................................................................. 3
1.1 Safety instructions ................................................................... 3
1.2 Remaining risk of accidents .................................................. 6
1.3 Intended use ............................................................................... 7
2 Installation instructions.................................................................... 8
2.1 Machine transport and setup ............................................... 8
2.2 Workplace description............................................................. 9
2.3 Connecting the machine .......................................................10
3 Operating instructions ....................................................................11
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..............................................................................16
5.2 Regular maintenance.............................................................16
5.3 Repairs and spare parts........................................................17
6 Disposal................................................................................................17
7 Technical documentation ..............................................................18
7.1 Technical data..........................................................................18
7.2 Electrical circuit diagram ......................................................18
8 EC Declaration of Conformity according to Directive
2006/42/EC........................................................................................19
Version: 16.03.2022 (Version 2.1)
Subject to change

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1Safety instructions
!!! Observe the safety instructions during the installation, operation,
cleaning and maintenance of the Rühle Frozen meat cutter!
Hazard potentially causing irreversible injuries if disre-
garded.
Warning potentially causing serious injuries if disre-
garded.
Note
Warning of electrical power
Pull the mains plug!
Warning of sharp object. (Risk of cutting)
Warning of non-ionising radiation
Non-ionising radiation is not specifically generated, but is only
emitted by the electrical equipment (e.g. electric motors,
power lines or solenoid coils) for technical reasons. In addition,
the machine has no strong permanent magnets. If a safety dis-
tance (distance field source to implant) of 30 cm is maintained,
the influence on active implants (e.g. cardiac pacemakers, de-
fibrillators) can be excluded with a high degree of probability.
1.1 Safety instructions
!!! A supervisor (responsible person) must be assigned to 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 disman-
tling/disposal!
b) Prepare work instructions for intended and safe transport,
commissioning, setup, operation, cleaning, decommissioning,
care/maintenance as well as dismantling/disposal!

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c) Ensure that the qualified workers have completely read and
understood the respective work instructions according to sec-
tion 1.1b!
d) Proper functioning of the protective devices must be checked
at least once a year by a Rühle service engineer!
e) Provide personal protective equipment!
All life cycle phases:
Use foot protection according to EN ISO 20345!
(E.g. recommended for butcher stores, dairies, meat and fish
processing: safety boots S4 with steel cap)
Use hand protection according to EN ISO 388!
(e.g. gloves with high cutting/puncture resistance)
Wear protective clothing according to EN ISO
13688! (E.g. appropriate aprons/coats/overalls)
Cleaning; care/maintenance; dismantling:
Use eye protection according to EN 166!
(E.g. tightly closing safety goggles)
Use light breathing masks according to EN ISO
149!
(E.g. simple breathing mask protection class FFP1)
Use hand protection according to EN ISO 374!
(Acid-resistant, butyl rubber, Viton)
Wear protective clothing according to EN ISO
13688, EN ISO 17491!
(E.g. appropriate coats/overalls)
[The information on the proposed personal protective equip-
ment has only an advisory function. A full risk assessment
should be carried out before using the product to assess
whether the indicated personal protective equipment is
suitable for local conditions. Personal protective equipment
should conform to the relevant EU standards.]
!!! The operator must operate the machine according to the intended
use and strictly observe all points listed in the "Operation" work in-
structions prepared by the supervisor.

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!!! 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:
a) Visual check for changes or damages on all machine sides
and accessible machine parts, e.g. the cut-off knife. The ma-
chine must be shut down in the event of any damage or
changes!
b) Check the safety switches as follows:
Install the upper belt section and the conveyor belt, close the
knife protection box and the conveyor belt hood, swivel the
folding table down and lock with locking pin.
•Start the machine. –Turn the main switch to "0 –Off". –If
the machine does not switched off, it must be shut down
immediately!
•Start the machine. –Press the stop button. –If the machine
does not stop, it must be shut down immediately!
•Start the machine. –Unlock the folding table and swivel it
upward. –If the machine has not switched off, it must be
shut down immediately! –Swivel the folding table down-
ward and lock it. –Machine starts.
•Start the machine. –Open the conveyor belt hood by
20 mm. –If the machine does not switched off, it must be
shut down immediately!
•–Open the conveyor belt hood and knife protection box. –
Dismantle the conveyor belt and upper belt section. Close
the knife protection box and the conveyor belt hood. –
Start the machine. –If it should start, it must be shut down
immediately!
!!! To shut down the machine the stop switch must be pressed, the
main switch turned to "0" - OFF" and the power plug pulled from the
outlet! Secure the machine against further use!

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!!! The supervisor must arrange for the repair of the non-functional
safety device by a Rühle service engineer. Until the corresponding
parts have been repaired, the supervisor must ensure that the ma-
chine or parts of the machine are not put into operation under any cir-
cumstances!
!!! 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 maintenance" unless any other authorisation has been is-
sued 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.
Disconnect the power plug for maintenance work!
!!! Do not modify the machine.
!!! Only use Rühle spare parts and accessories.
!!! The operating instructions as well as all other technical documents
included must be supplied completely when reselling the machine.
1.2 Remaining risk of accidents
!!! All life cycles phases
Damaged knife elements must be replaced!
Cut protection gloves must be worn when working:
•on the open knife protection box,
•on the cut-off knife,
•on the vertical knives,
•in the funnel (product feed).
Any manipulation and bypassing of the safety devices is
strictly prohibited!
Reaching into the machine or the funnel during operation
is strictly prohibited!

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If the trough and hood of the infeed are open, do not
reach under the trough, as you may cut yourself on the
cutter bar!
The folding table is equipped with a counterweight to
support the product feed. When the folding table is swiv-
elled downwards, it must be secured with the locking bolt!
If the empty folding table is unlocked and not held, it
swings upwards uncontrolled!
There is a danger of crushing in the area of the lever
mechanism of the folding table, hood and trough of the in-
feed as well as under the trough. Therefore, always hold
the folding table by its handle when filling the trough and
do not reach into the lever mechanism!
Secure the open hood of the conveyor belt against closing
with the existing closure!
Hold the open hood of the conveyor belt firmly before un-
locking it!
The knife protection box may swivel up when it is un-
locked with the hood of the conveyor belt open!
To unlock the folding table, grip the handle by hand from
below and pull the locking bolt with 2 fingers.
!!! Maintenance
Touching electrical components may cause serious inju-
ries or death.
Work on electrical equipment of the machine may only be
carried out by qualified technicians! Always disconnect
machine from the mains during this process!
The protective covers (lids on front and rear) may be re-
moved only while performing maintenance!
1.3 Intended use
The frozen meat cutter may only be used for cutting frozen blocks of
meat, bone material, fish, vegetables or button up to a temperature of

Frozen Meat Cutter GR 50
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-40°C. The room temperature must not exceed 12 °C for reasons of
food hygiene!
This machine is intended:
•for use during work
•for use by persons over 18
•for use by instructed persons
Claims of any type for damage caused by use other than
the intended use are excluded!
Misuse:
•Any use other than the use listed above is strictly prohibited
and is considered misuse!
•Operating the machine in explosive atmospheres is prohib-
ited!
•Handling/processing products and materials which are not
foodstuffs is prohibited!
•The folding table must not be used as storage area, step or
seat!
•Meat or bone material with teeth must not be cut!
2Installation instructions
Installation and commissioning of the machine may only be carried
out in the presence of a Rühle service technician or by persons au-
thorised by Rühle.
Rühle GmbH Lebensmitteltechnik accepts no liability for any damage
resulting from failure to comply with these operating instructions.
2.1 Machine transport and setup
Please refer to the short instructions supplied with the machine re-
garding transport and setup of the frozen meat cutter.

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The machine and machine parts must be transported by 2
persons (1 person to operate the floor truck/1 person to
supervise transport).
The power supply line must not be damaged by driving
over or crushing it!
The machine must be shut down until a damaged power
supply line has been repaired!
Ensure that the machine is stable!
Foundation load: 3,0 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, plus a container on the discharge
side, is at least 0.5 m on all sides; for maintenance work it is at least
1 m; if used as a passageway, it is at least 1.2 m.
Swivel range
Folding table
Swivel range
Hood of infeed
Swivel range
Hood of conveyor belt +
knife protection box

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2.3 Connecting the machine
The machine is connected to a three-phase outlet (clockwise rotating
field); the specifications (voltage, amperage) must correspond to the
specifications on the type plate of the machine.
The machine must be shut down until a damaged power
supply line has been repaired!
Check the power supply line regularly!
Check the correct direction of the rotary field by starting
the machine. The machine does not start in case of wrong
rotational field!
•In this case, an electrician has to change the rotating
field inside the mains plug.
•The power supply to the machine must be fuse-pro-
tected with 16 A and protected with an AC/DC sensi-
tive RCD (type B).
Swivel range
Hood of conveyor belt + knife protection box

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3Operating instructions
Please refer to the short instructions supplied with your machine for
the operation of your frozen meat cutter.
Also observe Chapter 1 Safety instructions!
In its respective life cycle phases (transport, commission-
ing, setup, operation, cleaning, decommissioning,
care/maintenance, dismantling/disposal), this machine is
designed for single person operation!
When using this machine, no other person may be present
near the machine. The exception (2-man operation):
•Installation and removal of the cutting blades
•Transport of machine and machine parts
•Maintenance activities
The machine may not be commissioned without transport
belt!
The following is strictly prohibited and failure to comply
represents gross negligence:
•Operating the machine without lids on the front and
rear!
•Manipulating or deactivating the safety devices on
the machine!
Working on the machine without lids installed on the front
and rear is permitted only for a Rühle service technician
during maintenance phase!
The operator must ensure that
•No persons who do not know the hazards of the ma-
chine or cannot anticipate them are present in the
area of the machine!
•The knife protection box is secured with a closure!
•The folding table swivelled down is secured with a
locking pin!

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•The feather key is placed in the guide groove when
installing the transport belt!
The operator controls may only be operated with the fin-
gers. Using any objects (e.g. blade) is prohibited!
4Cleaning instructions
The frozen meat cutter has been designed to allow for complete
cleaning of all parts that come into contact with the food product.
4.1 Safety instructions
•Also observe Chapter 1 Safety instructions!
•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 subse-
quent 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 prod-
uct area and suitable to remove contamination (e.g. protein, lime-
scale) must be used!
•The cleaning agents and disinfectants must be prepared to a so-
lution as described in the product data sheet of the manufac-
turer!
Personal protective equipment must be worn as described
in Chapter 1.1!

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Cleaning with high-pressure cleaners
is permitted only for:
•all outside surfaces,
•folding table,
•inside of the knife protection box,
•cutter bar and knife,
•infeed (trough and hood)
•Conveyor belt and hood
The operator controls must be cleaned manually and must
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
Working
concen-
tration
[%]
Exposure
times
[min]
Temper-
atures
[°C]
15207
FINK –Spül ASS
Alkaline foam
cleaner, mild
alkaline
1.0 –5.0
5 –15
20 –50
daily
19402
FINK –Superfett-
löser
Alkaline foam
cleaner
0.5 –5.0
5 –20
20 –50
10030
FINK –FC 30
Cleaning and disin-
fection, combined
1.0 –3.0
5 –15
20 –50
18556
FINK –FC Power-
foam 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
13302
FINK –Antisept A
Alcohol-based disin-
fectant
neutral
100
5
RT
daily
13304
FINK –Antisept E
Alcohol-based disin-
fectant
100
5
RT
17107
FT 107 DES
Disinfection
2.0 –5.0
15 –30
20 –40

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18803
FINK –Alu-Rei-
niger
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 Power-
foam 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 prod-
ucts 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.
•Start the machine first and move the cutter bar to the highest
position.
•Unlock and fold up the folding table.
•Open the hood of the conveyor belt and secure it with its closure.
•Open the knife protection box.
•Remove the transport belt. Proceed as follows:
oOpen the quick-action tape clamp by jerking it upward and
then fold it onto the belt frame.
oReach with one hand under the belt to the feather key. Lift
it from the guide groove and remove the transport belt.
oRemove the upper belt section.

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5Service: care, maintenance, repair
Any work related in any way to servicing may be carried out only by
Rühle service engineers and by persons authorised by Rühle in writ-
ing. In this regard, a distinction is made between regular care, mainte-
nance and repair. The respective qualification certificate must be is-
sued explicitly for the corresponding task.
Also observe Chapter 1 Safety instructions!
Notify and obtain permission from Rühle customer service
if welding or cutting work is required on the machine!
Wear cut protection gloves when working on the blades!
Reaching into the inside of the machine by opening the
side covers is strictly prohibited when performing “Regu-
lar care” activities!
When working on the electrical equipment of the machine,
ensure that
•this is only done by qualified personnel!
•the machine is always disconnected from the power
supply!
Use of lubricants –hygiene area
•Multi-purpose grease OKS 476 white, for food technology NSF H1
Reg. No. 137619
➢Replacing seal rings
Use of lubricants –others
•AUTOL TOP 2000, high pressure grease with synthetic base oil
(soap basis)
Personal protective equipment:
Protective gloves (EN 374), eye protection (EN 166),
protective clothing (EN 14605), protective mask (EN 1731)
➢Maintenance / replacement of moving parts, e.g. connect-
ing rod drive –cutter bar

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[The information on the proposed personal protective equipment only
has an advisory function. A full risk assessment should be carried out
before using the product to assess whether the indicated personal pro-
tective equipment is suitable for local conditions. Personal protective
equipment should conform to the relevant EU standards.]
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.
Any abnormalities detected during regular care must be reported to
the supervisor! The supervisor must immediately initiate rectification
or maintenance, or notify Rühle Service!
Care schedule:
a) Disassemble the machine according to the cleaning instruc-
tions. Check for any parts moving with difficulty, material
abrasion or other signs of wear and tear.
b) Remove the cut-off knives with the knife sharpener and
check them for any damage or broken blades.
c) Sharpen the vertical knives on both sides with the knife
sharpener and check them for damage or broken blades.
d) Visually check for changes or damages on all machine sides
and accessible machine parts, e.g. the cutter bar. The machine
must be shut down in the event of any damage or changes!
e) Check locking pin on the folding table for proper function and
firm seat.
5.2 Regular maintenance
Regular maintenance of the machine must be carried out every 2000
hours of operation but at least once per year.

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Maintenance schedule:
a) Inspect the safety devices as described in Chapter 1.1 Safety
instructions!
b) Carry out a test run with open machine (caution: moving
parts)!
c) All inspection work specified under "Regular Care"!
d) Replace the vertical knives!
e) Resharpen and readjust the cut-off knife!
f) Check the radial shaft seals for tightness; replace otherwise!
g) Lubricate machine parts according to the list “Lubricant use”
at the beginning of this chapter!
h) Read operating hours!
5.3 Repairs 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.
Contact our Service Hotline at [phone] for spare parts or
malfunctions. Please keep the machine type and number to hand.
6Disposal
All materials and operating fuels must be separated and
disposed of in accordance with nationally applicable regu-
lations!
1. The following components contain oil:
•Cutter bar drive
•Conveyor belt drive
The cutter bar drive is equipped with an oil drain plug. The
gearbox must be opened for the conveyor belt drive!

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7Technical documentation
7.1 Technical data
Supply voltage: 400 V 50 Hz 3-phase AC / N / PE
Power consumption: 7.0 kW
Full-load current: 13.6 A
Back-up fuse max.: 16 A
Protection class: IP54
Protection class: 1
Ambient temperature: -2°C to +25°C
Cut product temperature: -40°C to +80°C
Dimensions, W x H x D: 1350 x 1875 x 1110 mm
Work space, W x H x D: 2814 x 1875 x 2216 mm
Machine weight: 660 kg
Transport weight: 820 kg
Funnel, W x H x D: 680 x 250 x 440 mm
Working height: 990 mm
Knife stroke: 45 strokes/min
Output: 2500 kg/h
Folding table, load capacity: 30 kg
Foundation load: 3,0 kN/m²
Emission sound pressure level: LpA ≤ 70 dB(A)
Measured according to: DIN EN ISO 11201
accuracy class 2
Measured when: Idling without product
The data on the type plate principally applies; it is located on the back
of the machine next to the power cable. In case of deviations, please
contact the manufacturer for a written confirmation of the data!
If your country requires an RCD as protective measure, an RCD (type
B), AC/DC sensitive, must be used.
7.2 Electrical circuit diagram
The electrical circuit diagram of your machine is located in the electri-
cal control cabinet and must be supplied when reselling the machine!

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8EC Declaration of Conformity according to
Directive 2006/42/EC
The manufacturer hereby declares
that the following product
Name, legal form:
Rühle GmbH
Lebensmitteltechnik
Type:
Designation:
GR 50
Frozen meat cutter
Address:
Beim Signauer Schachen 10
79865 Grafenhausen
Germany
from serial no.:
0100
complies with all relevant provisions of the Directive indicated above, including any changes
that are valid at the time of this declaration.
The product complies with all relevant provisions of the following additional EU Directives and
standards, including any changes to these that are valid at the time of the declaration:
•DIN EN 1672-2: 2009-07
Food processing machinery –Basic concepts –Part 2:
Hygiene requirements
•DIN EN 60204-1: 2007-06
+ A1: 2009-10
Safety of machinery –Electrical equipment of ma-
chines –Part 1: General requirements
•EC 1935/2004
•EU 10/2011
Regulation on materials and articles intended to
come into contact with food.
•EC 2023/2006
Regulation on good manufacturing practice for mate-
rials and articles intended to come into contact with
food.
Signed by:
Person authorised for the documentation:
Place of issue:
79865 Grafenhausen
Germany
Name: Jürgen Stegerer
Date of issue:
03.04.2019
Address: Rühle GmbH
Position of the sign-
ing person in the
company:
Management
Beim Signauer Schachen 10
79865 Grafenhausen
Germany
Name of the signing
person:
Mr. Claus Rühle
Signature: