Hobart 4812 Operators Manual

MODEL

4812

Page 1 - English

Page

17 - French

ML-136159

FORM 35114 (July 2008)

Page

INSTALLATION AND OPERATION MANUAL

MANUEL D'INSTALLATION ET D'UTILISATION

INSTALLATIONS UND BEDIENUNGSANLEITUNG

33 - German

ENGLISH / CONTENTS

4812 CE Mincer Section Page
Safety Information 1.0 3
Safety Guidelines 1.1 3
Warning Symbols 1.2 3
Liability 1.3 3
Foreword 2.0 4
General Information 3.0 4
Caring for Our Environment 4.0 4
Packaging Material 4.1 4
Disposal of Your Old Appliance 4.2 4
Mincer Dimensions 5.0 5
Table 1 Technical Information 6.0 6
Installation 7.0 7
Un-Packing 7.1 7
Location 7.2 7
Electrical Installation 7.3 7
Commissioning and Operating Instructions 8.0 8
Operator Training 8.1 8
Using for the First Time 8.2 8
Component Identifi cation: 8.3 8
Assembly of Mincing End and Feed Pan 8.4 9
Operation 9.0 9
Controls 9.1 9
Mincing 9.2 9
Cleaning and Sanitizing 10.0 10
Maintenance 11.0 11
Fault Finding 12.0 12
Recommended Spares 13.0 13
Notes 14.0 14
Service Contact Numbers 15.0 15

© Hobart 2008

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1.0 SAFETY INFORMATION

The procedures and precautions contained in this manual are understood to apply to the
machinery only when it is used in the prescribed manner. If the machinery is used other than in
the recommended manner, the operator will be responsible for his/her own safety and for the
safety of the other persons who may be involved.

The information in this manual has been prepared to assist the operator to understand,
maintain, and operate the mincer. In order to prevent accidents, read, understand and follow
all the precautions and warnings contained in this manual before installation or operating for
the fi rst time. This manual must be studied to obtain a clear understanding of the mincer and its
capabilities.

1.1 SAFETY GUIDELINES

• Do not hose or pressure clean this appliance. It is vital to adhere to the cleaning instructions
detailed in this manual.

• Do not remove any covers or loosen any fi ttings whilst the machine is operating.

• Ensure this manual is kept in an easily accessible place for future reference near the
mincer.

• All operators must be trained in the safe operation of the mincer and its components.

• Ensure the electrical supply has been isolated before attempting to service or move the
mincer.

• Rotating machinery and electricity are potentially hazardous and may cause injury if
suffi cient precautions are not taken prior to operating or servicing the machine.

• Always have your miner and attachments regularly serviced; at least twice a year, depending
on frequency of use.

1.2 WARNING SYMBOLS

To identify the safety messages in this manual, the following symbols have been used.

The “Warning” symbol is found primarily where the corresponding information is

important for the safe use of the machinery.

The electrical hazard symbol is used when there are risks of an electrical nature.
Prior to servicing the machinery, always disconnect the power cable from the mains
supply.

1.3 LIABILITY

Installations and repairs which are not carried out by Authorized technicians or the use of
other than original spare parts, and any technical alterations to the machine, may affect the

warranty set out in the standard conditions of sale.

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2.0 FOREWORD

Hobart reserves the right to alter the design of their products without prior notice. Whilst every
effort is made to ensure this publication refl ects the latest design, the Company cannot guarantee
full compliance. Take pride in your 4812 Mincer - keep it clean and in good mechanical and
electrical condition.

3.0 GENERAL INFORMATION

The information and instructions contained in this manual may not cover all details or variations
in the equipment, not provide for every eventuality to arise with installation, operation, or
maintenance. If additional information is required, please contact your local Hobart offi ce.

The Model 4812 Mincer has a 0.37 kw (0.5 hp) electric motor. The 4812 will grind meat at a rate
of 3.63 kg per minute (8 pounds), fi rst cut through a plate with 3 mm (1/8 inch) diameter holes.

The machine is rated to operate on 230 volts/ 50 hertz/ 1 phase electrical supply. The mincer is
fi tted with a “no volt release” safety feature to prevent automatic restarting after a supply failure
or disconnection from the mains.

4.0 CARING FOR OUR ENVIRONMENT

4.1 PACKAGING MATERIAL

The pallet and protective polyethylene packing fi lm have been selected from
materials that are environmentally friendly for disposal or can be recycled.
Instead of throwing them away, please ensure they are recycled.

4.2 DISPOSAL OF YOUR OLD APPLIANCE

Old appliances contain materials that can be recycled. Please contact your local waste collection
centre; scrap merchant or local Hobart offi ce about potential recycling schemes.

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5.0 MINCER DIMENSIONS

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6.0 TABLE 1 TECHNICAL INFORMATION

Description Units 4812

Motor kW (hp) .373 (.5)
Maximum speed of rotating part (50Hz) rpm 1425
Nominal electrical supply Volts/Hz/ph 230/50/1
Full load current at above voltage Amps 2.9
Locked rotor current at above voltage Amps 15
Recommended fuse size Amps 10
Minimum ambient temperature °C 0
Maximum ambient temperature °C 40
Attachment hub drive size -- #12
Mincer weight (body only) Kg (Lbs) 39 (86)
Mincer with chopping end weight Kg (Lbs) 51 (122)

##

Noise level dB (A)
Shipping weight (body only) Kg (Lbs) 48 (105)
Mincing end, shipping weight Kg (Lbs) 10.2 (23)
Shipping dimensions (carton with body only) LxWxH cm 65.5 x 40.5 x 58.5
Storage conditions. Temperature and humidity. °C,

% RH
Class of appliance -- Class 1
Enclosure IP rating -- IP35

less than 70

+5 to +38,
85

##

In accordance with EN-ISO 12001:1996.

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7.0 INSTALLATION

7.1 UN-PACKING

Whenever possible the mincer should be transported to the
installation position in the packaging provided to avoid damage.
Do not use a sharp knife to cut into the box as damage to the
machine may occur. Check for possible shipping damage. If the
unit is found to be damaged, save the packaging material and
contact your nearest Hobart sales offi ce. Before installing, verify
that the electrical service agrees with the specifi cations on the rating plate located on the front
panel of the mincer below the drive hub.

With the machine in the vicinity of its fi nal position, remove carton from around the machine.
Remove the four bolts holding the machine to the skid. Unpack the mincer attachment carton.

After removing the skid, screw the threaded studs of the four legs (provided) into the tapped
holes in the four corners of the base. The rubber feet on these legs cushion the machine. Under
normal operation, the machines does not need to be bolted down.

7.2 LOCATION

The mincer is not suitable for outdoor installation and must not be installed where
a water jet could be used for cleaning. The mincer must only be operated by trained staff and
must be installed in a area where the use and maintenance is restricted to trained personnel.

The mincer must be installed on a horizontal fl at surface level to a minimum of 1mm in a 1 metre
side to side and front to back. Select a suitable fl at surface that can support the weight of the
mincer and feed pan when full (refer to table 1 for weights and page 5 for dimensions).

7.3 ELECTRICAL INSTALLATION

The electrical installation of the mincer must conform to the local electricity board
regulations. When installed in the United Kingdom the installation must be in accordance
with the current edition of the IEE Regulations for electrical equipment in buildings and
must conform to the requirements of the Electricity at work act.

A competent person must carry out the electrical installation.

The technical data shown in Table 1, page 6 details the electrical requirements for the
mincer. Ensure that the electrical power supply agrees with the machine specifi cation prior to
connection.

The mincer is equipped with a three-wire power supply cord ready for installation of an appropriate
grounding-type attachment plug. The plug and its mating receptacle must be properly grounded.
Contact an electrician. Provide proper fuse or circuit breaker protection.

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8.0 COMMISSIONING AND OPERATING INSTRUCTIONS

8.1 OPERATOR TRAINING

Take time to explain the correct operation and cleaning of the mincer to the users, referring to
this manual. Leave this manual with the operator and explain that it is important to use it for
further reference.

8.2 USING FOR THE FIRST TIME

The mincer must be cleaned and sanitized before use. Refer to Cleaning and Sanitizing,
page 10.

8.3 COMPONENT IDENTIFICATION:

MINCING END

ADJUSTING

RING

KNIFE

MINCER

PLATE

FEED

STOMPER

#12 MINCER

CYLINDER

WORM

(HOG CASING)

Figure 1

FEED

PAN

SAUSAGE

STUFFER

(SHEEP CASING)

SAUSAGE

STUFFER

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8.4 ASSEMBLY OF MINCING END AND FEED PAN

Make sure the drive hub and socket are clean and clear of any obstruction. Insert the socket end
of the cylinder into the drive hub with a slight twisting motion toward the left. The mincer cylinder
stop pin in the attachment will contact the side of the hole that receives it. Tighten the thumb
screw to secure the mincer cylinder in place.

Removing the mincer cylinder requires loosening the thumb screw three complete turns. The
thumb screw should never be removed. Slide the worm into the cylinder and rotate it until the
square shank of the worm locks into the hub drive. Install the knife on the end of the worm with
the cutting edges out, followed by the grind plate (Fig. 1). The notch on the grind plate aligns
with the pin in the bottom of the mincer cylinder. Thread the adjusting ring on the mincer cylinder
hand tight. Install the feed pan and feed stomper.

The knife and plate depend on meat for lubrication. Therefore, the mincer should

never be operated without meat.

9.0 OPERATION

9.1 CONTROLS

Main power switch:

I (green) ----- Push turns mincer motor ON.

0 (red) ----- Push turns mincer motor OFF

9.2 MINCING

Cut the meat into strips.

Turn the machine ON.

Feed the meat into the mincer using the feed stomper only as needed.

If the strips are cut to the proper size, they will feed without assistance from the stomper; allowing
both hands of the operator free to feed the meat. When running meat through the mincer a
second time, more speed is attained by feeding small quantities at a time rather than by trying
to force large amounts with the feed stomper. The feed pan should always be kept in place on
the cylinder. It not only makes regular feeding easy, but it keeps the mincer attachment ready for
immediate use. The fi neness to which the meat is cut is governed by the size of the holes in the
perforated Grind Plate, not by the tension put on the Adjusting Ring. Do not tighten the Adjusting
Ring more than hand tight. Between uses, remove the entire mincer end and feed pan and place
them in the refrigerator for re-use; or, clean and sanitize, if required.

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10.0 CLEANING AND SANITIZING

Disconnect the mains electricity supply before cleaning or servicing this
machine.

Remove the following parts for cleaning; Feed Pan, Adjusting Ring, Grind Plate, Knife, Worm,
and Mincer Cylinder.

The mincer must be thoroughly cleaned and sanitized after installation and before being placed
into service.

Cleaning Supplies (Not Provided)

Recommended cleaning and sanitizing supplies include:

• A 12" handle nylon brush that will slide through the cylinder

• A two compartment pail for cleaning solutions

• A pail for sanitizing solution

• A scrap pail

• Clean cloths

• A spray bottle

NOTE: When using detergents and sanitizers, always refer to the chemical manufacture’s safety
data sheet for hazard, handling, and fi rst aid information. Wear suitable gloves and eye / face
protection.

Prepare a hot detergent solution in one side of the two compartment pail. Fill the other compartment
with warm potable rinse water.

Mix a sanitizing solution by adding one tablespoon of sodium hypochlorite bleach (5.25%) to one
gallon of water in a pail. This makes a 200 ppm solution. Use this solution to fi ll the spray bottle
as well as the pail for sanitizing.

Thoroughly clean and sanitize the feed pan, feed stomper, mincer cylinder assembly, worm
assembly, knife, plate, adjusting ring and machine housing. Refer to Fig. 1 for component
identifi cation.

NOTE: After cleaning, apply a light coat of food grade mineral oil to the cylinder, adjusting ring,
knife, plate and worm before reassembly.

To reassemble, refer to section 8.4, page 9.

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11.0 MAINTENANCE

Unplug mincer power cord before cleaning, servicing or removing parts. Replace
parts before use.

MACHINE CLEAN UP

The machine should be thoroughly cleaned at the end of an operating day or after being idle for
an extended period of time. Refer to CLEANING for proper procedure (previous section).

HUB AND CYCLINDER DRAIN

Hub Drain

A drain slot in the trim washer allows any meat juices to drain from the hub. This slot should be
inspected periodically to make sure that it is free of obstructions. A small brush can be used to
remove any material which may have accumulated.

Cylinder Drain

A drain hole at the bottom end of the cylinder allows any meat juices to drain. This hole should
be inspected periodically to make sure that it is free of obstructions. A small wire can be used to
remove any material which may have accumulated.

AIR INTAKE

Under normal operating conditions the motor air intake screen, located in the base of the mincer,
will need little or no attention. However, in some installations where sawdust or other foreign
materials are present in the air, this intake screen may become partially or completely covered.
Where an adverse dust condition does exist, periodically check the screen and wipe clean with
a rag or brush as required.

STORAGE

The mincer should be completely cleaned and covered with a towel or other suitable cover when
it is not to be used in the immediate future.

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12.0 FAULT FINDING

Fault Possible cause

Machine will not start. Circuit breaker tripped, check fuse or circuit breaker.

Internal overload tripped, motor overload will auto reset
after cooling.

Product has poor appearance,
comes out soft or mushy.

Motor comes on, but worm shaft
will not turn.

Knife and/or plate worn, replace knife and plate or
End ring loose, tighten end ring, hand tight only.

End ring too tight, tighten end ring hand tight only, or
foreign object caught in cylinder, remove cylinder and
worm to inspect for cause of binding.

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13.0 RECOMMENDED SPARES

087711-232-1 Pushbutton on/off switch
914288 Contactor
914287 Overload
077643-00002 Ring-Adjusting
015881 Worm Assy.
119760-00001 Cylinder Assembly
122554 Stomper
122555 Pan-Feed
004221 Washer-Worm Thrust
004839-00001 Washer-Cylinder Thrust
295181 Stuffer-Sausage (Sheep Casing)
295180 Stuffer-Sausage (Hog Casing)
108197-00004 Thumb Screw Assy.
914767 Trim Washer (Attachment Hub)
065140 Gasket (Attachment Hub)
083681 Foot-Rubber
290481-00019 Housing-50 Hertz
064965-00008 Panel-Front Housing
064805-00008 Panel-Rear Housing
914759-00001 Motor Assy.
914157 Hub Adapter
914156 Seal-oil
016423-00001 Mincer Plate (1/8" Dia. Holes)(Carbon Steel)
016424-00001 Mincer Plate (3/16" Dia. Holes)(Carbon Steel)
016425-00001 Mincer Plate (1/4" Dia. Holes)(Carbon Steel)
016423-00002 Mincer Plate (1/8" Dia. Holes)(Stay Sharp)
016424-00002 Mincer Plate (3/16" Dia. Holes)(Stay Sharp)
016425-00002 Mincer Plate (1/4" Dia. Holes)(Stay Sharp)
290339 Knife-Mincer

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14.0 NOTES

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15.0 SERVICE CONTACT NUMBERS

Hobart trained service technicians strategically located at national Hobart service branches
are prepared to give you fast, effi cient and reliable service. Protect your investment by having
a Hobart inspection contract, which assures the continued, effi cient operation of your Hobart
machines, spares and accessories. For disposal of mincer, contact Hobart Service Centre for
return details.

For further details please contact: -

Department Telephone Facsimile

SALES: 07002 101 101 02088 864 396

SERVICE 07002 202 202 01733 371 709

SPARES 07002 303 303 01733 371 332

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