BIRO AFMG-24 Service manual

Item No. 56224
AFMG-24-220-8-21-19
Model AFMG-24
MINI AUTOMATIC MIXER
GRINDER/CHOPPER
OPERATING
AND
SERVICE
MANUAL
IMPORTANT NOTICE
This Manual contains important
safety instructions which must
be strictly followed when using
this equipment.

TABLE OF CONTENTS:
NOTICE TO OWNERS AND OPERATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE
SAFETY TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL EQUIPMENT ILLUSTRATED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
3
7
23
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TO PROCESS PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MIXING PADDLE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
WIRING DIAGRAMS, 1 & 3 PHASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
FOOTSWITCHES, PNEUMATIC & ELECTRIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-22
WARNING LABEL LOCATIONS ON MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TANDEM OPERATION ILLUSTRATION FOR 90° INLET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
MIXER DRIVE SHAFT SEAL REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
UNCRATING AND SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
MOTOR WIRING AND ELECTRICAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5
MOTOR SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PARTS DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
FRAME & CASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
MIXER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
GRINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
POWER TRANSMISSIONS AND JOURNAL BOX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-16
POWER CONTROLS (ELECTRICAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
RETROFIT AEG CONTACTORS IN CONTROL BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
OPTIONAL STAINLESS STEEL BOWLS, AUGERS & RINGS
(114mm UNGER & ENTERPRISE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
ITEMS REQUIRED FOR TANDEM OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TANDEM CONNECTION ILLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
OPERATOR’S SIGNATURE PAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
GRINDER KNIVES AND PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10

NOTICE TO OWNERS AND OPERATORS
BIRO’s products are designed to process food products safely and efciently. Unless the opera-
tor is properly trained and supervised, however, there is the possibility of a serious injury. It is the
responsibility of the owner to assure that this machine is used properly and safely, strictly following
the instructions contained in this Manual and any requirements of local law.
Warnings related to possible damage are indicated by:
BIRO also has provided warning labels on the equipment. If any warning label, instruction label
or Manual becomes misplaced, damaged, or illegible, please contact your nearest Distributor or
BIRO directly for a replacement.
Remember, however, this Manual or the warning labels do not replace the need to be alert and to
use your common sense when using this equipment.
- NOTE -
A copy of this manual is included with each MODEL AFMG-24 MIXER GRINDER.
The descriptions and illustrations contained in this manual are not binding.
The manufacturer reserves the right to introduce any modication without updating
the manual.
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No one should use or service this machine without proper training and supervision. All operators
should be thoroughly familiar with the procedures contained in this Manual. Even so, BIRO cannot
anticipate every circumstance or environment in which its products will be used. You, the owner
and operator, must remain alert to the hazards posed by the function of this equipment
particularly the ROTATING GRINDING AUGER and the ROTATING MIXING PADDLE, which
can severely injure an inattentive operator amputating ngers and limbs. No one under eighteen
(18) years of age should operate this equipment. If you are uncertain about a particular task, ask
your supervisor.
This Manual contains a number of safe practices in the SAFETY TIPS section. Additional warn-
ings are placed throughout the Manual. Warnings relate to your personal safety are indicated by:
This Manual applies to all machines with serial number 20200 and higher.
or

2
SAFETY TIPS
ROTATING GRINDING AUGER & ROTATING MIXING PADDLE
TO AVOID SERIOUS PERSONAL INJURY
• NEVER Touch This Machine without Training and Authorization by Your Supervisor.
• NEVER Place Hands into Machine Input or Output Openings.
• NEVER Open Machine During Operation.
• ONLY Use a Qualied Electrician to Install According to Local Building Codes: Machine MUST
Be Properly Grounded.
• ALWAYS Connect to PROPER Voltage & Phase.
• ONLY Install on Level, Non-Skid Surface in a Clean, Well-Lighted Work Area Away from
Children and Visitors.
• ALWAYS Lock Machine Castors After Moving This Machine.
• NEVER Use This Machine For Non-Food Products.
• NEVER Operate Machine With Product Mixer Safety Cover Open or Removed or Magnetic
Interlock Switch By-Passed.
• ALWAYS Turn Off, Unplug Machine From Power Source and Perform Lockout/Tagout Procedure
to this Machine BEFORE Attempting to Unjam or Unclog, Cleaning or Servicing.
• NEVER Leave Machine Unattended While Grinder is Running.
• NEVER Alter This Machine From its Original Form as Shipped From Factory. DO NOT Operate
Machine With Missing Parts.
• PROMPTLY REPLACE Any Worn or Illegible Warning Labels.
• ALWAYS Read Operation and Service Manual BEFORE Operating, Cleaning, or Servicing.
• USE ONLY BIRO Parts and Accessories Properly Installed.

INSTALLATION
TO AVOID SERIOUS PERSONAL INJURY, PROPERLY INSTALL
EQUIPMENT IN ADEQUATE WORK AREA
3
• ALWAYS Connect to Proper Voltage & Phase.
• NEVER Operate Machine With Product Mixer Safety Cover Open or Removed or Magnetic
Interlock Switch By-Passed.
• ALWAYS Use Qualied Technician and Electrician for Installation.
• ALWAYS Install Equipment in Work Area with Adequate Light and Space Away From Children
and Visitors.
• ONLY Operate on a Solid, Level, Non-Skid Surface.
• ALWAYS Lock Machine Castors After Moving Machine to Operating Location.
• NEVER Bypass, Alter, or Modify This Equipment in Any Way From Its Original Condition.
• NEVER Operate Without all Warning Labels Attached and Owner/Operator Manual Available to
the Operator.
• USE ONLY BIRO Parts and Accessories Properly Installed.
UNCRATING AND SET UP
1. Read this Manual thoroughly before installation and operation. Do not proceed with installation and
operation if you have any questions or do not understand anything in this Manual. Contact your local
Distributor, or BIRO rst.
2. Remove all banding, shipping carton, and all equipment from inside the tub. Then take machine off
shipping pallet.
3. This machine is shipped with the adjustable legs fully retracted. The legs allow for a height adjustment
from the oor to centerline of bowl 24½” minimum to 34” maximum.
4. This machine weighs approximately 600 pounds. To avoid accidents block up machine after raising to
desired operating height.
5. The adjustable legs can be unbolted and lowered to the oor. Replace bolts and nuts and tighten securely.
6. Install machine on a level, non-skid surface in a well-lighted work area away from children and visitors.
7. This machine is complete except for knife and plate. There is a bowl shipping plug (cardboard)
placed in the output end of the grinding bowl to retain the grinding auger during shipment. REMOVE
THE BOWL SHIPPING PLUG AND THE GRINDING AUGER.
8. After checking and making sure the power supply is correct, plug in your machine. NEVER OPERATE
MACHINE WITH PRODUCT MIXER SAFETY COVER OPEN. (Machine will not run with cover
open.)
9. Machine must be properly grounded. Use qualied electrician to install according to local building codes.

MOTOR WIRING AND ELECTRICAL REQUIREMENTS
a. Interchange of current is made in motor outlet box. Leads are properly marked. Changing instructions are
on the motor plate or motor outlet box.
NOTE TO OWNER AND ELECTRICIAN: IF THIS MACHINE IS NOT CORD
AND PLUG CONNECTED TO THE ELECTRICAL SUPPLY SOURCE, THEN IT
SHOULD BE EQUIPPED WITH, OR CONNECTED TO, A LOCKABLE,
MANUALLY-OPERATED DISCONNECT SWITCH (OSHA 1010.147). THIS IS
APPLICABLE FOR U.S. ONLY.
4
b. All grinders are wired 208/230 volts unless otherwise specied. Be sure motor specications (voltage,
cycle, phase) match power supply line. Be sure line voltage is up to specication.
c. Electrical connections to be in accordance with safety codes and National Electrical Code.
d. Rated voltage of the unit shall be identical with full supply voltage.
e. Voltage drop on the supply line shall not exceed 10% of full supply voltage.
g. The feederline conductor shall only be used for the supply of one unit of the relevant horsepower. For
connections of more than one unit on the same feederline, a local electrician will have to be consulted to
determine the proper conductor size.
f. The feederline conductor size in the raceway from the branch circuit to the unit must be correct to assure
adequate voltage under heavy starting and short overload conditions.
h. The size of the electrical wiring required from the power source to the mixer grinder is a MINIMUM OF
No. 10 WIRE. If the length of the circuit from the power source to the grinder is long, increase the
size of the wire gauge to the next larger size.
i. The BIRO Manufacturing Company is not responsible for permanent wiring, connection or installation.
MOTOR SPECIFICATIONS
HP KW VOLTS HZ PH AMPS
5 3.7 208/230 60 3 14.8/14
5 3.7 230 60 1 23
5 3.7 460 60 3 7
5 3.7 575 60 3 5.3
7.5 5.6 208/230 60 3 22/20.2
7.5 5.6 220 50 3 22
7.5 5.6 380/415 50 3 12.7/11
7.5 5.6 460 60 3 10.1
7.5 5.6 575 60 3 8.1

For best results, use knife and plate as a set. Do not operate machine for any period of time
without product in the grinding bowl. This will cause heating and dulling of the knife and plate.
5
10. Located on the side of the machine are a green and red pushbutton for activating the internal motor control
contactor. The magnetic interlock switch is mounted under the rear machine cover. It lines up with the
magnet attached to the product mixer safety cover. When the safety cover is raised the machine will stop
operation.
11. Push the green start button. CHECK THE ROTATION OF THE MIXING PADDLE; ROTATION
MUST BE COUNTER-CLOCKWISE as indicated by the rotation decal afxed to the mixer paddle
front mounting hub. Backwards operation will not allow mixing paddle to feed product to the grinding
auger efciently.
13. If machine runs clockwise(backwards), it must be rewired to correct rotation, otherwise serious
irreparable damage may occur to the grinding components. Both the auger and the mixing paddle must
operate in the proper direction.
14. Check operation of optional footswitch if equipped. Plug footswitch cord into tting on control panel.
Turn selector to foot. The machine will operate with pressure on the footswitch treadle. Releasing the
treadle stops the machine.
15. Insert auger assembly into the grinding bowl and fully engage the auger into the drive shaft. Place knife
rst (sharp edges out) then grinding plate into end of grinding bowl. The grinding plate slides over the
knife drive pin, and is held from rotating during operation by three pins in the grinding bowl. Install the
end retaining ring.
ONLY HAND TIGHTEN END RETAINING RING
16. Check placement of all warning labels and Manual. Machine is now ready for trained operators to process
product.
17. Use meat deector attached to grinding bowl to eliminate meat splatter.
18. Contact your local Distributor or BIRO directly if you have any questions or problems with the installation
or operation of this machine.
12. Lift slightly the clutch arm and push to the rear of the machine. CHECK THE ROTATION OF THE
AUGER DRIVESHAFT; ROTATION MUST BE COUNTER-CLOCKWISE as indicated by the
rotation decal located on the grinding bowl. ROTATION MUST ONLY BE CHECKED WITH THE
GRINDING AUGER REMOVED, otherwise serious irreparable damage may occur to grinding
components.

OPERATION
• NEVER Place Hands into Machine Input or Output Openings.
• ONLY Properly Trained Personnel Should Use This Equipment.
6
• NEVER Open Machine During Operation.
• NEVER Operate Machine With Product Mixer Safety Cover Opened or Removed or Magnetic
Interlock Switch By-Passed.
• ALWAYS Turn Off and Unplug Machine from Power Source and Perform Lockout/Tagout
Procedure to This Machine Before Attempting to Unjam, Unclog, Cleaning or Servicing.
• NEVER Operate Without All Warning Labels Attached and Owner/Operator Manual Available to
the Operator.
• DO NOT Wear Gloves While Operating.
• DO NOT Tamper With, Bypass, Alter, or Modify This Equipment in Any Way From Its Original Condition.
• NEVER Leave Machine Unattended While the Grinder is Running.
A. TO PROCESS PRODUCT
1. Before starting the mixer grinder, have a container for receiving ground product at the output end of the
grinding bowl.
2. FIRST GRIND
3. SECOND GRIND
4. Unplug machine from power source and perform lockout/tagout procedures.
a. Fill Product Hopper (Maximum 140 Pounds), close Product Mixer Safety Cover.
b. Push the green start button. During this mix operation seasonings may be added through the sight
holes in the Product Mixer Safety Cover.
c. After the desired mix, shift the clutch arm into the grind position to operate the grinding auger and grind
out the product.
b. Push the green start button and shift the clutch arm into the grind position to feed rst grind. It is
recommended to use a breaker plate with a ⅜” diameter or larger holes.
c. Push the red stop button and pull the clutch arm out of the grind position when all product has been
ground out.
a. Fill Product Hopper (Maximum 140 Pounds), close Product Mixer Safety Cover.
d. Push the red stop button when all product has been ground out. Return clutch arm to mix position.
ROTATING GRINDING AUGER & ROTATING MIXING PADDLES
TO AVOID SERIOUS PERSONAL INJURY
• DO NOT Grind Frozen Product.

7
CLEANING
• ALWAYS Turn Off, Unplug Machine From Power Source and Perform Lockout/Tagout
Procedure to this Machine BEFORE Cleaning or Servicing.
• ONLY Use Recommended Cleaning Equipment, Materials, and Procedures.
• NEVER Spray Water or Other Liquid Substances Directly at Motor, Power Switch or any Other
Electrical Components.
• ALWAYS Thoroughly Clean Equipment at Least Daily.
CLEANING THE BIRO MIXER-GRINDER
l. Disconnect mixer grinder from power-source and perform lockout/tagout procedures.
2. Remove grinding bowl end ring, breaker plate, knife and grinding auger.
3. Remove mixing paddle. Be sure front most paddle arm is pointing up. Loosen the thumb screw on the mix-
er paddle lock arm (Item No. 53853). While supporting the mixing paddle, remove the lock arm. Turn the
mixing paddle counterclockwise, slide forward to disengage the drive shaft and lift from product hopper.
DO NOT POWER SPRAY DIRECTLY AT ELECTRICAL COMPONENTS
4. Machine is now ready to be cleaned using warm soapy water and rinsed with clean water. Machine may be
cleaned by power spray washing, taking care not to spray directly at any electrical controls.
5. After machine has been cleaned and allowed to air dry, all exposed metal surfaces should be coated with a
good food grade light oil or grease.
1. Do not use abrasive cleaning materials, such as brillo pads or metal scrapers. Tin is a soft metal and should
be cleaned with a soft cloth and dried.
2. Do not use a cleaning agent containing a high percentage of free alkali or acid.
3. Do not use a detergent containing a high percentage of tri-sodium phosphate or meta-silicate.
Tin is reactive to both.
4. Rinse well and dry thoroughly after washing to remove agents that may be reactive to tin.
5. If sterilizing agent containing chlorine is used, the tinned surface must be thoroughly rinsed.
Chlorine is corrosive to tin.
6. Dry thoroughly after rinsing and store in a dry environment.
7. If water is exceptionally hard, drying will be necessary to prevent spotting.
ROTATING GRINDING AUGER & ROTATING MIXING PADDLES
TO AVOID SERIOUS PERSONAL INJURY
CLEANING THE BOWL- RING AND WORM
CARE OF TIN COATED PRODUCTS
(DO’S AND DON’TS)