BIRO AFMG-48-II Service manual

AFMG-48
138-4-18-18 B
Model AFMG-48-II AUTOMATIC FEED MIXER GRINDER
OPERATING AND SERVICE MANUAL
STARTING WITH SERIAL NO. 62001 (MARK II)
STARTING WITH SERIAL NO. 63401 (SIDE OPENING LID)
STARTING WITH SERIAL NO. 63592
(35° INLET/TRI DIRECTIONAL LID)
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
3
7
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TO PROCESS PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MIXING PADDLE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28
SAFETY LABEL LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
UNCRATING AND SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MOTOR WIRING AND ELECTRICAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
MOTOR SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PARTS DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16, 17, 18
STANDARD AND OPTIONAL BOWL ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
CONNECTION INSTRUCTIONS FOR TANDEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . .
26, 27
OPERATOR’S SIGNATURE PAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
GRINDING BOWL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
NORD TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-10
DORRIS TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
MIXER DRIVE BELT TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
MAIN DRIVE CHAIN AND SPROCKET LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
MIXER DRIVE CHAIN TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
CHAIN REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
OPTIONAL EAGLE BELT DRIVE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14
PRODUCT MIXER SAFETY COVERS & LID LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
JOURNAL BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
ELECTRIC FOOTSWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
ITEMS REQUIRED FOR TANDEM OPERATION UP TO S/N 63591. . . . . . . . . . . . . . . . . . . . . .
23, 24
ITEMS REQUIRED FOR TANDEM OPERATION AFTER S/N 63592. . . . . . . . . . . . . . . . . . . . . . . . . 25
SUPPLY CORD REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
MIXER DRIVE SHAFT SEAL REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
DORRIS MIXER TRANSMISSION PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 30

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 to the equipment are indicated by:
BIRO also has provided warning labels on the equipment. If any warning label or Manual be-
comes 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-48 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.
1
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 machines with serial number 62001 and higher, to machines with
tri-directional product mixer safety cover and 35 degree inlet, serial number 63592 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 Opened 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.
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 241/16” minimum to 339/16” maximum.
4. This machine weighs approximately 700 pounds. To avoid accidents block up machine after raising to
desired operating height.
5. The adjustable legs can now be unbolted and lowered to the oor using the following steps.
6. Install machine on a level, solid, 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.
a. Unbolt leg and while holding leg turn leg adjusting stud (Item No. 54310) clockwise until caster rests
on oor.
b. Be sure bolt holes line up. Replace bolts and tighten securely.

MOTOR WIRING AND ELECTRICAL REQUIREMENTS
1. Interchange of current is made in motor outlet box. Leads are properly marked. Changing instructions are on the
motor plate or motor outlet box.
2. All grinders are wired 220 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.
3. Electrical connections to be in accordance with safety codes and National Electrical Code.
4. Rated voltage of the unit shall be identical with full supply voltage.
5. Voltage drop on the supply line shall not exceed 10% of full supply voltage.
7. 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.
6. 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.
8. The size of the electrical wiring required from the power source to the mixer grinder with a 7½ HP grind
motor is a MINIMUM OF No. 10 WIRE. With 10 HP grind motor MINIMUM OF No. 8 WIRE to be used.
3-PHASE MOTOR SPECIFICATIONS AND OVERLOADS
MIXER MOTOR GRINDER MOTOR
BALDOR/DORRIS
MOTOR Voltage Cycles Overload Amps Item No.
200 60 E-41 3.7 539001 HP/ .75kw
208 60 E-41 3.6 539001 HP/ .75kw
220 60 E-41 3.5 539001 HP/ .75kw
230 60 E-41 3.4 539001 HP/ .75kw
440 60 E-29 1.8 539221 HP/ .75kw
460 60 E-29 1.7 539221 HP/ .75kw
575 60 E-27 1.3 539971 HP/ .75kw
220 50 E-44 4.2 539241 HP/ .75kw
380 50 E-34 2.1 539261 HP/ .75kw
415 50 E-34 2.0 539261 HP/ .75kw
BALDOR/DORRIS
MOTOR Voltage Cycles Overload Amps Item No.
200 60 E-48 5.5 506691.5 HP/ 1.1kw
220 60 E-48 5.0 506691.5 HP/ 1.1kw
440 60 E-38 2.5 527401.5 HP/ 1.1kw
460 60 E-36 2.4 527391.5 HP/ 1.1kw
575 60 E-33 1.9 527291.5 HP/ 1.1kw
220 50 E-48 6.0 506691.5 HP/ 1.1kw
380 50 E-39 3.5 527321.5 HP/ 1.1kw
415 50 E-39 3.2 527321.5 HP/ 1.1kw
BALDOR MOTOR Voltage Cycles Overload Amps Item No.
200 60 E-70 25 539257.5 HP/ 5.6kw
208 60 E-69 24 542197.5 HP/ 5.6kw
220 60 E-67 23 526097.5 HP/ 5.6kw
230 60 E-67 22 526097.5 HP/ 5.6kw
440 60 E-56 11.5 527437.5 HP/ 5.6kw
460 60 E-56 11 527437.5 HP/ 5.6kw
575 60 E-54 8.8 507057.5 HP/ 5.6kw
220 50 E-70 27.6 539257.5 HP/ 5.6kw
380 50 E-61 16 527447.5 HP/ 5.6kw
415 50 E-60 14.6 506677.5 HP/ 5.6kw
BALDOR MOTOR Voltage Cycles Overload Amps Item No.
200 60 E-72 30 5702810 HP/ 7.5kw
208 60 E-72 28.8 5702810 HP/ 7.5kw
220 60 E-70 27.2 5392510 HP/ 7.5kw
230 60 E-70 26 5392510 HP/ 7.5kw
440 60 E-60 13.6 5066710 HP/ 7.5kw
460 60 E-60 13 5066710 HP/ 7.5kw
575 60 E-56 10.4 5274310 HP/ 7.5kw
220 50 E-72 32.6 5702810 HP/ 7.5kw
380 50 E-62 18.8 5070410 HP/ 7.5kw
415 50 E-62 17.3 5070410 HP/ 7.5kw
NORD
HIGH EFF. MOTOR Voltage Cycles Overload Amps Item No.
200 60 E-50 5.9 506681.75 HP/ 1.3kw
208 60 E-48 4.8 506691.75 HP/ 1.3kw
220 60 E-48 4.6 506691.75HP/ 1.3kw
230 60 E-46 4.2 527421.75 HP/ 1.3kw
440 60 E-36 2.7 527391.75 HP/ 1.3kw
460 60 E-34 2.1 539261.75 HP/ 1.3kw
550 60 E-34 2.2 539261.75 HP/ 1.3kw
575 60 E-34 2.1 539261.75 HP/ 1.3kw
200 50 E-48 7.1 506691.75 HP/ 1.3kw
380 50 E-36 2.5 527391.75 HP/ 1.3kw
415 50 E-34 2.3 539261.75 HP/ 1.3kw
9. The recommended amp service size for the mixer grinder with a 7½ HP, 400V grind motor is 40 Amp service.
With a 10 HP, 400V grind motor is 50 Amp service.
10. The BIRO Manufacturing Company is not responsible for permanent wiring, connection or installation.
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)
4

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
14. 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.
15. Check operation of optional footswitch if equipped. Plug footswitch cord into tting at the bottom of
the pushbutton control box. Move toggle selector to foot. The machine will operate with pressure on the
footswitch treadle. Releasing the treadle stops the machine. The footswitch operates the mix and grind
together.
16. Insert auger assembly into the grinding bowl and fully engage the auger into the drive shaft. Place knife
(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 RETAINING RING
17. Check placement of all warning labels and Manual. Machine is now ready for trained operators to process
product.
18. Use meat deector attached to grinding bowl to eliminate meat splatter.
19. Contact your local Distributor or BIRO directly if you have any questions or problems with the installation
or operation of this machine.
11. Two sets of green and red pushbuttons are located on the front of the machine that activate the magnetic
contactors that control the mix and grind motors. The magnetic interlock switch is mounted in the
pushbutton box. It lines up with the magnet attached to the product mixer safety cover. When the safety
cover is raised the machine will stop operation.
13. Push the green start button for mix. 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.
12. Push the green start button for grind. CHECK THE ROTATION OF THE AUGER DRIVE SHAFT;
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.
• 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 Unjamming, Unclogging, 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 200 Pounds), close Product Mixer Safety Cover.
b. Push the mix green start button only. During this mix operation seasonings may be added through the
sight holes in the Product Mixer Safety Cover.
c. After the desired mix, push the green grind start button to operate grinding auger and grind out product.
c. Push both grind and mix red stop buttons when all product has been ground out.
a. Fill Product Hopper (Maximum 200 Pounds), close Product Mixer Safety Cover.
d. Push both grind and mix red stop buttons when all product has been ground out.
ROTATING GRINDING AUGER & ROTATING MIXING PADDLE
TO AVOID SERIOUS PERSONAL INJURY
6
b. Push both grind and mix green start buttons to feed rst grind. It is recommended to use a breaker plate
with a ⅜” diameter or larger holes.

7
CLEANING
• ALWAYS Turn Off, Unplug Machine From Power Source and Perform Lockout/Tagout
Procedures 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. 53852). 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.
6. 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 PADDLE
TO AVOID SERIOUS PERSONAL INJURY
CLEANING THE BOWL- RING AND WORM
CARE OF TIN COATED PRODUCTS
(DO’S AND DON’TS)
5. The grinding head can be removed for cleaning if desired. This is accomplished by removing the three nuts
on the back ange of the grinding head.

MAINTENANCE
A. GRINDING BOWL INSTALLATION
1. Mount the grinding bowl on the three threaded studs on the front of the machine. Tighten in position
with provided nuts.
2. Place the grinding auger in the grinding bowl and fully seat rear drive tang into auger drive shaft.
3. Install knife, breaker plate and end retaining ring.
B. MIXING PADDLE INSTALLATION
1. Check that mixer paddle drive pin (Item No. 53516) in the mixer paddle drive shaft (Item No. 53955-N)
is positioned vertically.
2. Holding the mixing paddle by the center shaft and with the front blade up carefully t drive receiving
collar onto the end of the drive shaft. Insert paddle lock arm assembly (Item No. 53852) into the front
of the mixing tub and onto the front of the mixing paddle.
8
• ALWAYS Turn Off, Unplug Machine From Power Source and Perform Lockout/Tagout
Procedure to this Machine BEFORE Servicing.
• NEVER Touch This Machine Without Training and Authorization by Your Supervisor.
• NEVER Place Hands into Machine Input or Output Openings.
• NEVER Bypass, Alter, or Modify This Equipment in Any Way From Its Original Condition.
• PROMPTLY REPLACE Any Worn or Illegible Warning Labels.
• USE ONLY GENUINE BIRO Parts and Accessories Properly Installed.
ROTATING GRINDING AUGER & ROTATING MIXING PADDLE
TO AVOID SERIOUS PERSONAL INJURY
3. When fully seated, turn the lock arm counterclockwise so the protruding arm is behind the lock set screw
bracket. Tighten the mixer paddle lock set screw (Item No. 53568).
C. LUBRICATION
1. MOTORS: This machine has pre-lubricated motor bearings. These bearings should be re-lubricated
annually with a good grade of bearing grease, such as POLYREX EM (EXXON-MOBILE) or equivalent.
Do not over-grease.
2. BEARING HOUSING: The main bearings are housed in an enclosed and sealed journal box. Re lubricate
semi-annually with a good grade of bearing grease. Do not over-grease.
ONLY HAND TIGHTEN RETAINING RING
4. When the bowl assembly is mounted and tight, there should be approximately ⅛” gap between the back
inside wall of the grinding trough and the back of the auger. The bowl ring wrench is provided with each
mixer grinder is used only for REMOVAL of the end retaining ring for cleaning purposes or for
changing knife and breaker plate.

9
OPERATING AND MAINTENANCE INSTRUCTIONS
STARTING WITH SERIAL No. 66708
Check the motor nameplate to verify the phase, hertz and voltage agrees
with the available power supply. Connection should conform to local codes.
A connection diagram for the motor is located inside the conduit box and on
the motor nameplate. The motor starter has an overload protector.
START-UP
All units are lubricated before shipment. The lubricant level should be checked
with the unit mounted in its correct operating position. Lubricant should be added
or removed to bring it to the correct level.
MAINTENANCE
a. MOTOR
During maintenance, inspect the fan guard and remove any accumulated debris from under or around the gear
reducer. Motor bearings are greased and sealed for life. Motor requires no periodic maintenance.
b. GEAR REDUCER
All units are lled with Mobil SHC 636 from factory with ISO VG 680. This is a Polyglycol (PG) type
synthetic lubricant. Units should be checked periodically for increase noise, surface temperature, vibration, shaft
movement, and amperage draw. Gear reducer should have the lubricant changed every 20,000 hours or four years,
whichever occurs rst. For adverse operating conditions the interval should be shorter. DO NOT MIX
SYNTHETIC & MINERAL BASE OILS. After the unit is drained of the used lubricant, it should be lled with
approximately 2.85 Qts. of a compatible lubricant to the above specication. Once the unit is lled, the lubricant
level should be veried.
Please note the chart below for oil compatibility:
Oil Compatibility
Polyglycol
Polyalphaoeln
Polyalphaoeln
Mineral
Mineral
Polyglycol
No
No
Yes
Aral Degol GS 680
BP Enersyn SG-XP 680
Texaco Pinnacle 680
Shell Omala HD 680
Klober Klubersynth GH 6-680
Mobil SHC 636
Tribol 800/680
The listing below offers suggestions on the
manufacturers of recommended lubricants. Use
synthetic oil (Polyglycol-Base) between 14 - 175°
with an ISO Viscosity Class of ISO VG 680.
NORD GEAR CORP.
800 Nord Drive
P.O. Box 376
Waunakee, WI 53597-0367
3. FOR NORD HELICAL-WORM GEAR AND MOTOR REDUCER
ELECTRICAL CONNECTIONS
NOT SHOWN
ITEM NO. 53516,53953,SSS10Z
cad no. rrc
MOUNTED ON OPPOSITE
SIDE-ITEM NO. HHSM0671S,
LWM25S -7 REQ'D EACH
ITEM NO. 57211-1
ITEM NO. 53955-N
ITEM NO. 57212-4
NOT SHOWN
ITEM NO. C776
14-4 SO CORD
REF.
ITEM NO. 53766-1
SPACER, MOTOR
GEAR REDUCER
-1 REQ'D NOT SHOWN
ITEM NO 53786-1
SPACER, ELEC ENCL
-1 REQ'D
ITEM NO.53769-35-1
KEY, MIXER DRIVE SHAFT
53769-47, HHS128S
VENT
FILL
DRAIN
Item No. Description
53516 Mixer paddle drive pin
53766-1 Spacer, motor gear reducer
53769-35-1 Key, mixer drive shaft
53769-47 Washer, mixer shaft washer
53786-1 Spacer, control box support
53953 Seal, mixer drive shaft
53955-N Shaft, Nord mixer drive
57211-1 Mounting plate, Nord trans.
57212-4 Motor & reducer only- Nord
57212-5 Motor & reducer only- Nord
57212-6 Motor & reducer only- Nord
1¾HP, 575V-60-3Ph.
1¾HP, 208-440V-50/60-3Ph.
1¾HP, 200V-60-3Ph.
57212-4K Conversion kit & plate- Nord
1¾HP, 208-440V-50/60-3Ph.
57212-5K Conversion kit & plate- Nord
1¾HP, 575V-60-3Ph.
57212-6K Conversion kit & plate- Nord
1¾HP, 200V-60-3Ph.
HHS128S Hex head screw, ½-13 x 1¾ SS
HHSM0671S Hex head screw, M10 x 1.5 x 20mm SS
HN42S Hex nut, ½-13 SS
LW30S Lock washer, ½ SS
LWM25S Lock washer, M10 SS
SSS10Z Socket set screw, ¼-20 x ¼ SS
C776 Terminal ring, #10
Item No. Description
Starting with Serial Number 66708

10
INSTRUCTIONS FOR MOUNTING
NEW 1-PIECE NORD GEAR REDUCER/GEAR MOTOR
1. Disconnect and unplug from main power source and perform lockout/tagout before attempting to service.
2. Remove rear cover.
3. Remove junction box cover from 1HP motor, disconnect the lead wires from the mixer motor. Loosen the
strain relief and pull the cord thru, attach blue ring terminals to black, white, red and green wires.
4. Remove the paddle assembly from the tub.
5. Remove Item No. SSS10Z, set screw from the end of the mixer drive shaft.
6. Remove Item No. 53516, mixer paddle drive pin from the shaft. Note the position of shims and replace at the same
position with new installation.
7. Loosen the two fasteners to the transmission mounting angle and the two fasteners to the transmission and motor
mounting bracket. With the help of another person, remove the hex nuts from the four mounting fasteners and remove
the mixer transmission and motor assembly. Be careful not to damage tub mixer seal.
8. Attach the new transmission mounting plate, Item No. 57211, to the new gear motor. Use the 7-pc. M8 x 20 hex head
cap screws and lock washers supplied (see drawing for reference). Install new mixer drive shaft, Item No. 53955-N
with key into the hollow shaft of the gear unit. Secure with large at washers, lock washer and hex bolt.
9. With another person, attach the mounting plate with the gear motor onto the existing mounting brackets sliding the
mixer drive shaft through the mixer drive seal. Try not to damage the mixer seal. Note the shim position, and use the
existing fasteners, ½-13 x 1½ hex cap screws, lock washer, and nuts to secure.
10. Insert the mixer paddle drive pin, Item No. 53516. Tighten the set screw, Item No. SSS10Z.
11. Place the mixer paddle assembly back in the hopper and onto the mixer drive shaft.
12. Assemble the lock arm assembly, Item No. 53852, onto the front of the hopper on the paddle assembly.
13. Be sure the transmission mounting plate is tight to the mounting brackets.
14. Does the lock arm assembly turn free with the paddle assembly? If there were shims on the old mixer transmission
assembly to the mounting brackets, you will need to use them again to align the lock arm assembly with the paddle
assembly.
15. Re-attach the electrical cord. Tighten the strain relief on the cord. Be sure all other electrical connections are tight.
CAUTION - BE SURE the motor is connected for the proper voltage - check the arrangement of the jumper straps in
the motor junction box.
16. Plug in the mixer-grinder to power.
17. Check the rotation to the mixer paddle assembly. The direction of the mixer paddle assembly is counter-clockwise.
If the rotation is clockwise, switch two of the three wires to the mixer motor. Check rotation again for the mixer
paddle assembly. The rotation for the mixer paddle and the auger are both counter-clockwise.
18. Re-attach the motor junction box cover.
19. Attach rear cover.
KIT, Item #57212-4K consists of:
NORD GEAR-MOTOR REDUCER, 1¾ HP57212-41 pc.
E-48, OVERLOAD HEATER ELEMENT506693 pcs.
TRANSMISSION MOUNTING PLATE57211-11 pc.
MIXER DRIVE SHAFT FOR NORD53955-N1 pc.
MIXER DRIVE SHAFT SEAL539531 pc.
LOCTITE ADHESIVE FOR SHAFT SEAL53953A-11 pc.
MIXER PADDLE DRIVE PIN535161 pc.
SET SCREW FOR DRIVE PIN, ¼-20 x ¼SSS10Z1 pc.
KEY FOR MIXER DRIVE SHAFT53769-35-11 pc.
WASHER RETAINER FOR MIXER SHAFT53769-471 pc.
HEX HEAD SCREW ½-13 x 1¾, SSHHS128S1 pc.
LOCK WASHER ½, SSLW30S5 pcs.
MOTOR CORD, 14 ga. x 4 WIRE3522042”
TYPE SO
CORD GRIP CONNECTOR535111 pcs.
RING, TERMINAL #10, 16-14 AWG,1773-11 pcs.
INSULATED
HEX HEAD SCREW,HHSM0671S7 pcs.
M10 x 1.5 x 20MM SS
LOCK WASHER, M10 SSLWM25S7 pcs.
HEX HEAD SCREW ½-13 x 1¼, SSHHS126S4 pcs.
SPACER, MOTOR GEAR REDUCER53766-11 pc.
SPACER, CONTROL BOX SUPPORT53786-11 pc.
HEX NUT, ½-13, SSHN42S4 pcs.

11
4. FOR DORRIS MIXER TRANSMISSION
(OBSOLETE -N/A) BEFORE SERIAL NO. 66266
DORRIS MIXER TRANSMISSION: Oil in the mixer
transmission should be changed after the rst four (4) weeks
of operation. This is to remove the “run in” oil and also any
small metal shavings that may have been generated during
the initial mating of the gears. After the rst oil change,
subsequent changes should be performed every six (6)
months. After draining the oil, rell the unit to the “level”
plug (1 qt.) at the center of the transmission with a
petroleum based rust and oxidation (R&O) inhibited gear
oil. Viscosity Range for 15-75° F (-9 - 24° C) is
AGMA Lube No. 3 or ISO Grade 100.
TO CHANGE OIL:
a. Unplug mixer/grinder from power source and perform
lockout/tagout procedures.
b. Remove rear drive cover.
c. Remove breather plug from top of transmission and oil
level plug from side of transmission.
d. With a container in place to catch old oil, remove the
magnetic drain plug from the bottom of the transmission.
e. When all oil has drained, clean the drain plug and
replace into the transmission.
f. Rell transmission with approx. one (1) quart of the
recommended gear oils or equivalent. Or until oil
appears at bottom of oil level sight hole.
g. Replace breather and oil level plugs.
h. Carefully turn mixer transmission pulley by hand to
lubricate internal gears.
i. Reinstall rear drive cover.
D. MIXER DRIVE BELT TENSION
1. Unplug mixer/grinder from power source and perform lockout/tagout procedures.
2. Remove rear drive cover.
3. Loosen the four bolts holding the 1HP motor to its mounting plate.
4. Slide 1HP motor away from mixer transmission.
5. When approximately ½” total belt ex has been attained, re-tighten motor bolts.
6. Reinstall rear drive cover.
E. MAIN DRIVE CHAIN AND SPROCKET LUBRICATION:
The main drive chain has been pre-lubricated at the factory to protect it against dirt and moisture. Chain life
will vary appreciably depending upon its lubrication. The better the lubrication, the longer the chain life.
Lubrication effectiveness will vary with the amount of lubricant and frequency of application. Ideally, a lubricant
lm should always be present between the working parts. Manually lubricate the chain as often as is needed
(possibly once a week). NEVER exceed three months without lubricating.
Lubricating just outside of the chain does little good. Apply lubrication on the inside of the chain span so that
it will work through the moving parts and joints by centrifugal force as the chain rotates and reach the area
where one surface “scrubs” another.
SUGGESTED POPULAR NAME BRANDS:
R & O GEAR OILS
(RUST & OXIDATION INHIBITED)
COMPANY ISO VISCOSITY GRADE
100 (AGMA3)
AMOCO American Ind’l Oil 100
CHEVRON Machine Oil R & O ISO 100
CITGO Pacemaker Oil 100
CONOCO Dectol R & O Oil 100
EXXON Teresstic 100
MOBIL DTE Heavy
PHILLIPS Magnus Oil ISO VG 100
SHELL Morlina Oil 100
SUN Sunvis 9100
TEXACO Regal Oil R & O 100
BREATHER PLUG
MAGENTIC DRAIN PLUG
OIL
LEVEL
PLUG

12
MAIN DRIVE CHAIN AND SPROCKET LUBRICATION (continued):
Recommended types of chain lubricant are those with Molybdenum Disulphide or Graphite added. Also
bonded lubricants such as Dow Corning Molykote 321R or equivalent are excellent for open chains. The
lubricant should be of a viscosity whereby it will “ow” somewhat and penetrate the internal working
surfaces. Thick stiff greases are of little value because they cannot work into moving parts of the chain.
a. Unplug mixer/grinder from power source and perform lockout/tagout procedures.
b. Remove rear drive cover.
c. Spray or brush lubricant on inside of chain, slowly and carefully turning large sprocket by hand.
d. Reinstall rear drive cover.
F. MAIN DRIVE CHAIN TENSION ( See Diagram Below)
1. Unplug mixer/grinder from power source and perform lockout/tagout procedures.
2. Remove rear drive cover.
3. Remove right and left side skirts.
4. Loosen the four bolts that hold the motor to the frame of the machine.
5. Loosen the lock nuts on the motor adjusting stud.
6. To Loosen Chain Tension. Turn motor adjusting studs counterclockwise. Grasp motor and pull toward
adjusting stud. Be sure to turn both adjusting studs the same amount and evenly. Total chain ex should
be ⅛ to ⅜”. Be sure to keep motor shaft parallel with auger drive shaft.
To Tighten Chain Tension. Turn motor adjusting studs clockwise. Be sure to turn both adjusting studs
the same amount and evenly. Total chain ex should be ⅛ to ⅜”. Do not over tighten chain as this will put
excessive and damaging pressure on the motor bearings. Be sure to keep motor shaft parallel with auger
drive shaft.
7. Re-tighten motor mounting bolts.
8. Re-tighten motor adjusting stud lock nuts.
9. Reinstall the right and left side skirts.
10. Reinstall the rear drive cover.
G. CHAIN REPLACEMENT
1. Part No. H384-CL Service Replacement Chain is provided with a
“Connecting Link” (Part No. H384-LINK) so that it can be separated
to facilitate installation over the sprockets.
Upon assembly, be sure the connecting link is installed so the spring
clip is orientated with its opening facing “opposite” the direction of
the chain travel (See Diagram at right).
LEFT
MOTOR
TIGHTEN
LOOSEN
HHS100S MOTOR
ADJUSTING STUD
FRONT
ADJUSTING STUDS
HHS100S MOTOR
MOTOR
AFTER INSTALLATION
THE CHAIN SHOULD BE
TENSIONED TO
APPROXIMATELY
⅛ to ⅜ FLEX

13
OPTIONAL EAGLE BELT DRIVE SYSTEM
H382-EAGL-26
MOTOR PINION
SPROCKET
Large “O” Ring
Small “O” Ring
H384-EAGL-1440
DRIVEBELT
Straight Edge
A
B
10HP (7.5kw)
new 21.1lb (9.6Kg)
used 14.6lb (6.6Kg)
7-1/2HP (5.6kw)
new 15.3lb (6.9Kg)
used 11.2lb (5.1Kg)
FORCE TABLE # 1-7
30252015
150
50
Deflection Force Scale
Small “O” Ring
Tension Tester
H384-EAGL-TSTR
Straight Edge
Belt
Large “O” Ring
Span Scale
Belt Deflection
1/8” (3mm)
APPLY FORCE
53727-EAGL
DRIVEN SPROCKET

14
“EAGLE” DRIVE BELT
Tensioning Instructions
c. Re-tighten the motor mounting bolts.
d. Re-check the belt tension according to the above procedure.
1. Place a straight edge on top of the belt and across both sprockets as shown in the diagram.
2. Set the large O-Ring at the 1st Graduation ( ⅛” line) on the Tension Tester,
Item No. H384-EAGLE-TSTR.
3. Set the small O-Ring on the deection force scale to zero.
4. Place the tension tester squarely on the belt at the center of the belt span (See Diagram).
5. Apply a force to the plunger until the large O-Ring is even with the bottom of the straight edge which
has been placed across both sprockets ( ⅛” belt deection).
6. Remove the tension tester and read the force recorded from the bottom of the small O-Ring on the
deection force scale.
7. The force should be equal to the value indicated in the force table #1-7 depending on the “HP”
of the grinder, and if the belt is “new” or “used”.
8. If the force values do not equal those shown in table #1-7, increase the tension as follows:
a. Loosen the four (4) motor mounting bolts slightly.
A
b. Advance the jacking screws ¼ turn each (be sure to advance both screws an equal amount).
B
Do not rely on “feel” for the proper belt tension as this typically results in belts that are under-tensioned.
Loose belts will fail due to “ratcheting” (jumping a tooth), tooth shearing, and breakage.
H. REPLACING ELECTRICAL SUPPLY CORD:
Always turn off, unplug machine from power source and perform lockout/tagout procedures to this
machine. Remove rear drive cover. Remove electrical control cover. Remove the supply cord leads from
the terminal strip, Ground, L1, L2, and L3. Loosen the strain relief for the supply cord. Remove the cord
clamp from the frame. Pull the supply cord down through the strain relief out from the machine.
Use recommended electrical wire size connecting to the electrical supply source. Use 12’ (3650mm) of
cord, strip back the cord to expose the insulated wires. Strip each insulated wire back ⅜” (9.5mm). Push
the strip end of the cord through the cord clamp and the strain relief. Attach the stripped ends into the
terminal strip, Ground, L1, L2, and L3. Tighten the terminal strip connections. Tighten the strain relief and
clamp to the cord.
Note- The “Eagle” drive belts do not stretch. However, there is a “break-in” period where the teeth in the
belt “mesh” with the teeth of the sprockets during the 1st few hours of operation.
The belt should be re-tensioned after 1 week of operation, according to this tensioning procedure.
No further maintenance is required after this initial adjustment.

15
Assembly Instructions for Mixer Drive Shaft Seal
1. Remove the Set Screw, Item No. SSS10Z from the end of the Mixer Drive Shaft.
2. Remove Mixer Paddle Drive Pin, Item No. 53516.
3. Remove old Seal. Remove old silicone, clean and dry Tub around Seal area.
4. Apply white Food safe Grease to the new Seal Lip on the inside diameter. See Detail “A” for location.
5. Assemble new Mixer Drive Shaft Seal. See Detail “A”.
7. Check the Mixer Drive Seal for t. Be sure the Seal makes contact all around the Mixer Drive Shaft.
6. Fold smaller diameter lip of the seal into tub hole. Rotate mixer drive shaft seal clockwise. Make sure
the smaller diameter is completely outside the tub.
8. Install the Mixer Paddle Drive Pin and tighten the Set Screw, Item No. SSS10Z. Apply food approved
Silicone Sealant over the Set Screw.
9. The Tub and Seal must be clean and dry. Use Rubbing Alcohol. Apply Biro Item No. 53953A-1 adhesive,
only use half the tube, .05 ounce around the inside of the Mixer Shaft Seal and inside of the Tub wall. Wipe
away excess adhesive. Adhesive working life, 20 seconds.
10. Slide Ring, Item No. ST88 onto the Mixer Drive Shaft, concave side toward the Seal. Use the Wedge, Item
No. ST87 between Ring and Mixer Paddle Drive Pin to apply even pressure against the Seal. Do not over
pressurize.
11. Wait, allow for 10 minutes set up time. Remove Wedge and Ring.
12. Apply a small amount of NSF approved silicone sealant, Biro Item No. 400 around the outside edge of the
Seal. Wipe away excess silicone sealant. The 3 uid ounce tube of Sealant contains enough to complete
30 Assemblies.
13. Allow the Adhesives to cure for 24 hours before running the Mixer/Grinder.
I. MIXER DRIVE SHAFT SEAL REPLACEMENT

16
AFMG-48 MIXER GRINDER
PARTS LIST WITH NORD
GEAR TRANSMISSION
STARTING WITH
SERIAL No. 66708
Description
Item No.
56221 Safety cover torsion spring, R.H.
HN42S Hex nut ½-13, SS
57211-1 Mounting plate
54303 Outer disc, double rod, #62001 on
14688 Lock knob (2 req’d)
57133 Side entrance seal, double rod, 35°
55094 Right side skirt - no hole
Fig.
1
6
7
8
9
10
15A
H382 Motor pinion, 19 tooth
53891 Auger drive shaft key
53894 Auger drive shaft lockwasher
53715-1 Ring wrench hanger
HN15S Hex nut ¼-20, SS
H340 Ring wrench
55093 Right side skirt 35° inlet, #63592 on
PC175-1 Swivel caster w/ total lock (4 req.) -new style
11
12
13
13A
14
15
17
18 53944-1 Standard leg, 9½” adjusting- new style caster pad
53895 Auger drive shaft locknut
C617 Motor shaft key ¼ x ¼ x 1⅞
53955-N Mixer drive shaft
53769-35-1 Mixer drive shaft key
53769-47 Mixer shaft washer retainer
224-9 Cord grip connector
21
26
27
28
29
33
53944 Standard leg, 9½” adjusting- old style caster pad
53727 Main sprocket, 141 tooth
20
#63401 on
56222 Safety cover torsion spring, L.H.
#63401 on
55095 Right side skirt, 90° inlet, #62001 to #63591
15B
HHS128S Hex head screw ½-13 x 1¾, SS30
LW30S Lock washer ½ SS
31
35220 Motor cord SO 14/4 x 42”
32
C776 Terminal ring #10 (NOT SHOWN)
241-LN Lock nut ½”
34
35
57050 Safety cover hinge rod, side opening
57153 Tri directional hinge rod for front
opening, #63440 on 27 ¾
56045 Hinge rod spacer (2 req’d)
AN20S Acorn nut ⅜-16, SS (2 req’d)
2
2A
2B
2C
HHS126S Hex head screw ½-13 x 1¼, SS
LW30S Lock washer ½, SS
57212-4 Motor & reducer only - Nord 1¾HP
3
4
5208-230/380-415-460-50/60-3ph
57212-5 Motor & reducer only - Nord 1¾HP
5A
575-60-3ph
57212-6 Motor & reducer only - Nord 1¾HP5B 200-60-3ph
inlet, #63592 on
54302 Side entrance seal, double rod, 90°
10A inlet, #62001 to #63591
16 H382-1 Motor pinion, 22 tooth
53952 Swivel caster w/ lock (4 req.) -old style
55096 Left side skirt, 35° inlet
19
53944-5K Foot leg pad bumper kit (4 ea.)
55098 Left side skirt, 90° inlet
55097 Left side skirt - no hole
259/16”long, #63401 on
19A
19B
5, 5A, 5B
1
2, 2A, 2B, 2C
7
21
20
19, 19A, 19B
18
17
16
26
15, 15A, 15B
13, 13A
12
11
9
8
10, 10A
14
27, 28, 29, 30, 31
3, 4, 6
32, 33, 34
35

17
AFMG-48 SIDE VIEW PARTS DIAGRAM
(NOT SHOWN)
25D
52
57
25B
32
29
30
28
27
11
10
L3L2L1GRD
54
56
55
31
37
37A
936
35
34
33
33A 53
13
12
8
PADDLE DETAIL
SEE ABOVE
25C
25D
23
24
26
25
22
20
21
15
18
19
16
46,47
42,44
50
48,49
51
17
14
8A
1, 1A, 1B
5
39
38
8B
3
6
6
4
7
2
41
40
5
45
43
26A
26B
58
27
27C
27B
27A
27A
27B
27C
57
17