Rühle GR 50 User manual

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

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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............................................................................... 6
2 Installation instructions.................................................................... 7
2.1 Machine transport and setup ............................................... 7
2.2 Workplace description............................................................. 8
2.3 Connecting the machine ......................................................... 8
3 Operating instructions ...................................................................... 9
4 Cleaning instructions.......................................................................10
4.1 Safety instructions .................................................................10
4.2 Cleaning agents and disinfectants....................................11
4.3 Cleaning procedure.................................................................11
5 Service: Care, maintenance, repair.............................................12
5.1 Regular care ..............................................................................12
5.2 Regular maintenance.............................................................13
5.3 Repair and spare parts..........................................................13
6 Disposal................................................................................................14
7 Technical documentation ..............................................................14
7.1 Technical data ..........................................................................14
7.2 Electrical circuit diagram ......................................................15
8 EC Declaration of Conformity according to Directive
2006/42/EC ........................................................................................16
Status: 16.03.2022 (Version 2.1)
Changes reserved

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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
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!
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,
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!

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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!
!!! 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:
a) Visual check for changes or damages on all machine sides
and accessible machine parts, e.g. the cut-off knife. The
machine must be shut down in the event of any damages or
changes!
b) Check the safety switches as follows:
Close hood 1, hood 2 and the door for the standard trolley.
•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. –Open hood 1 20 mm. –If the machine
does not switched off, it must be shut down immediately!

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•Start the machine. –Open the door (for standard trolley)
20 mm wide. –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!
!!! 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! 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
Damaged knife elements must be replaced!
Any manipulation and bypassing of the safety devices is
strictly prohibited!
Do not reach into the area underneath the trough when
feeding has started!
When folding down the folding table it must be
remembered to hold the folding table in position before
unlocking the hinge! To this end, it must be held on the
table and not on the flap or its handle!
!!! 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)!
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
-20 °C. The max. room temperature may be 12 °C for reasons of food
hygiene!
This machine may not be operated by persons under the age of 18!
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!

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•Handling / processing products and materials not belonging
to food products 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
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 frozen meat cutter.
The machine and machine parts must be transported by
2 persons (1x operator of floor conveyor / 1× 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!
Make sure the machine is stable!

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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.
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!
Swivel range
of hood 2
Swivel range
of hood 1
Swivel range
of folding table
Swivel range for door
(for standard trolley)
Swivel range of hood 2

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Check the correct rotational direction of the machine by
starting it. The machine does not start in case of wrong
rotational 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 16A secured with an AC/DC sensitive
ground-fault circuit interrupter (type B).
3Operating instructions
Please refer to the short instructions supplied with your machine for
the operation of your frozen meat cutter.
Follow also the safety instructions in Chapter 1.1!
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 the cutting blades
•Transport of machine and machine parts
•Maintenance activities
Do not reach into the area underneath the trough when
feeding has started!
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!
The operator controls may only be operated by touching it
with the fingers. Using any objects (e.g. blade) is
prohibited!

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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
•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!
Cleaning with high-pressure cleaners
is permitted only for:
•all outside surfaces,
•insides of the protective hoods,
•inside of the funnel (product feed),
•cutting unit,
•trough and
•slider (residual part presser)
The operator controls must be cleaned manually and may
not be exposed to a water jet!

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All other parts and surfaces may be cleaned only with
normal water pressure!
4.2 Cleaning agents and disinfectants
The following cleaning agents and disinfectants must be used:
Cleaning agents:
Alkaline cleaning:
Acidic cleaning:
P3 –topax 12, P3 –topax 19,
P3 –topax 66
P3 –topax 56
Disinfectants:
P3 –topax 91, P3 –topax 99
Supplier:
Henkel Hygiene GmbH
Bonner Str. 117
D-40589 Düsseldorf
Tel.: [phone]
Or:
Cleaning agents:
Alkaline cleaning:
Acidic cleaning:
Somplex F fat solvent
Somplex foam, acidic
Disinfectants:
Tego 2000, Tego IMC
Supplier:
Th. Goldschmidt AG
Goldschmidtstr. 100
D-45116 Essen
Tel. [phone]
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.
•Remove any objects lying on the machine.
•Open hoods 1 and 2.
•Remove the standard trolley under the cut product discharge.

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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!
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!
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!
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 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) Remove the cut-off knives with the knife sharpener and
check them for any damage or broken blades.

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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 damages or changes!
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) All inspection work specified under “Regular Care”!
d) Replace the vertical knives!
e) Resharpen and readjust the cut-off knife!
f) Check radial shaft seals for leak tightness; replace otherwise!
g) Fill all lubricating nipples and moving parts in the machine
compartment with grease!
h) Read operating hours!
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.

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6Disposal
1. The following components contain low-viscosity grease:
•Drive for cutter bar and trough
Dispose of the low-viscosity grease properly!
2. The following components contain oil:
•Cutter bar gearbox and trough
The geared motor is equipped with an oil drain plug.
Subsequently, dispose of the oil properly!
3. All other materials must be sorted and disposed of at a
recycling facility.
7Technical documentation
7.1 Technical data
Connection voltage: 400 V 50/60 Hz 3-phase AC / N / PE
Power consumption: 6.9 kW
Full-load current: 13.3 A
Back-up fuse max.: 16 A
Protection class: IP54
Ambient temperature: -2 °C to +25 °C
Lowest permissible
cut product temperature: -20 °C
Size of standard trolley
as per DIN 9797: 200 litres
Height of standard trolley
as per DIN 9797: 700 ±5 mm
Dimensions, W × H × D: 3062 × 1879 × 1558 mm
Machine weight: 630 kg
Transport weight: 750 kg
Clear height: 250 mm
Clear width: 440 mm
Working height: 1050 mm
Knife stroke: 45 strokes/min

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Output: 3000 kg/h
Emission sound pressure level: LpA ≤ 70 dB(A)
Measured according to: DIN EN ISO 11201
accuracy class 2
Measured: Idling without product
The data on the type plate principally applies; it is located on the back
of the machine above the side cover. In case of deviations contact the
manufacturer for a written confirmation of the data!
If your country requires a ground fault circuit interrupting device as
protective measure, a ground fault circuit interrupting device (type B),
AC/DC sensitive, must be used.
7.2 Electrical circuit diagram
The electrical circuit diagram of your machine is located in the
electrical 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 herewith declares
that the following product
Name:
Legal form:
Rühle GmbH
Lebensmitteltechnik
Type:
Designation:
GR 50
Frozen meat
Address:
Beim Signauer Schachen 10
D –79865 Grafenhausen
From series no.:
cutter
0002
complies with all relevant provisions of the directive indicated above, including any changes to
it that are valid at the time of the 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
machines –Part 1: General requirements
•EC 1935/2004
Regulation on materials and articles intended to
come into contact with food.
Signed by:
Person authorised for the documentation:
Place of issue:
D-79865
Grafenhausen
Name: Jürgen Stegerer
Date of issue:
30.04.2015
Address: Rühle GmbH
Function of the
signing person in the
company:
Management
Beim Signauer Schachen 10
D-79865 Grafenhausen
Name of the signing
person:
Mr. Claus Rühle
Signature: