BIRO 542 User manual

HEAVY HORSEPOWER GRINDER
OPERATING MANUAL & PARTS LIST
Models 342, 542, 548, 552, 7542, 7548, 7552, 1056, 1556
Applicable on HHP Grinders starting with Serial No. 2250
PTCT
H400-078A
7-04-22
+IMPORTANT NOTICE +
This Manual contains important
safety instructions which must
be strictly followed when using
this equipment.
Biro Designed Biro Built
PTCT
H400-078A
4-13-25

NOTICE TO OWNERS AND OPERATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
UNCRATING AND SET UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
MOTOR WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ELECTRICAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
MOTOR SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TO PROCESS PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
GRINDING BOWL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
BEARING HOUSING LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ROLLER CHAIN AND DRIVE SPROCKET LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
MAIN DRIVE CHAIN TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
OPTIONAL EAGLE DRIVE BELT TENSIONING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . .10 & 11
PARTS DIAGRAMS, MAIN BODY AND DRIVE SYSTEM
FOR 3, 5, 7
1/2
HORSEPOWER GRINDERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
AND WARNING LABELS & LOCATIONS ON GRINDERS
PARTS DIAGRAMS, BOWL AND TRAY SECTION
FOR 3, 5, 7
1/2
HORSEPOWER GRINDERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
AND WARNING LABELS & LOCATIONS ON GRINDERS
ELECTRICAL CONTROLS FOR 3, 5, 7
1/2
HORSEPOWER GRINDERS . . . . . . . . . . . . . . .14 & 15
PARTS DIAGRAMS, MAIN BODY AND DRIVE SYSTEM
FOR 10 & 15 HORSEPOWER GRINDERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
AND WARNING LABELS & LOCATIONS ON GRINDERS
PARTS DIAGRAMS, BOWL AND TRAY SECTION
FOR 10 & 15 HORSEPOWER GRINDERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
AND WARNING LABELS & LOCATIONS ON GRINDERS
ELECTRICAL CONTROLS FOR 10 & 15 HORSEPOWER GRINDERS . . . . . . . . . . . . . . . . . . . . .18
OPERATOR’S NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 & 20
OPERATOR’S SIGNATURE PAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

BIRO’s products are designed to process food products safely and efficiently. Unless the oper-
ator 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.
No one should use or service this machine without proper training and supervision. All opera-
tors 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 WORM, which can severely injure an inattentive operator
amputating fingers and limbs. No one under eighteen (18) years of age should operate this equip-
ment. If you are uncertain about a particular task, ask your supervisor.
This Manual contains a number of safe practices in the SAFETY TIP section. Additional warn-
ings are placed throughout the Manual. Warnings related to your personal safety are indicated by:
Warnings related to possible damage 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.
This Manual applies to machines with serial number 2250 and higher.
1
NOTICE TO OWNERS AND OPERATORS
OR
- NOTE -
A copy of this manual is included with each HEAVY HORSEPOWER GRINDER.
The descriptions and illustrations contained in this manual are not binding.
The manufacturer reserves the right to introduce any modification
without updating the manual.

SAFETY TIPS
ROTATING GRINDING WORM
TO AVOID SERIOUS PERSONAL INJURY
NEVER Touch This Machine Without Training and Authorization By Your Supervisor.
ALWAYS Read Operation and Service Manual BEFORE Operating, Cleaning or Servicing.
NEVER Place Hands Into Machine Input or Output Openings.
NEVER Open Machine During Operation.
ONLY Use a Qualified 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.
NEVER Use This Machine For Non-Food Products.
NEVER Operate Machine With Tray And/Or Tray Guard Removed, or Magnetic Safety Switch
By-Passed.
ALWAYS Turn Off, Unplug 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 Operating.
NEVER Alter This Machine From its Original Form as Shipped From Factory. DO NOT Operate
Machine With Parts Missing.
PROMPTLY REPLACE Any Worn or Illegible Warning Labels.
USE ONLY BIRO Parts and Accessories Properly Installed.
2

INSTALLATION
TO AVOID SERIOUS PERSONAL INJURY
PROPERLY INSTALL EQUIPMENT IN ADEQUATE WORK AREA
ALWAYS Use Qualified Technician and Electrician for Installation.
ALWAYS Connect to Proper Voltage & Phase.
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.
NEVER Bypass, Alter, or Modify This Equipment in Any Way From Its Original Condition.
NEVER Operate With Tray And/Or Tray Guard Removed, or Magnetic Safety Switch By-Passed.
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
first.
2. Install machine on a level, solid, non-skid surface in a well-lighted work area away from children and visitors.
3. After installing machine in operational area, it is imperative that the four adjusting legs be adjusted to level the
machine and also eliminate rocking.
4. This machine is complete except for a knife and plate. There is a bowl shipping plug (stamped steel) placed in
the output end of the grinding bowl to retain the grinding worm during shipment. REMOVE THE BOWL
SHIPPING PLUG AND THE GRINDING WORM.
5. After checking and making sure the power supply is correct, plug in your machine. NEVER OPERATE
MACHINE WITHOUT TRAY AND GUARD INSTALLED (Machine will not run with tray removed).
6. Machine must be properly grounded. Use qualified electrician to install according to 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.
(B) All grinders are wired 220 volts unless otherwise specified. Be sure motor specifications (voltage, cycle,
phase) match power supply line. Be sure line voltage is up to specification.
(C) Electrical connections to be accordance with safety codes and National Electrical Code.
3
ALWAYS LEVEL MACHINE BEFORE USING

(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.
(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.
(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.
(H) The size of the electrical wiring required from the power source to the grinder on the 3, 5, 712HP Grinders is
aMINIMUM OF No. 10 WIRE. On the 10 & 15 HP Grinders a MINIMUM OF No. 8 and No. 6 respectively.
(I) The BIRO Manufacturing Company is not responsible for permanent wiring, connection or installation.
MOTOR SPECIFICATIONS
HP KW VOLTS HZ PH AMPS
5 4 208/220 60 3 17/16
5 4 230 60 1 27
5 4 440 60 3 8
5 4 550 60 3 6.4
7.5 5.5 208/220 60 3 23/22
7.5 5.5 440 60 3 11
10 7.5 208/220 60 3 27/25.6
10 7.5 440 60 3 12.8
10 7.5 550 60 3 10
15 11 208/220 60 3 41/39
15 11 440 60 3 19.5
7. Located on the side of the machine is a toggle handle that activates the internal on/off switch. The interlock
safety switch is mounted to the top of the internal switch and will break contact with the magnetic starter should
the tray be removed.
8. Turn the toggle handle to the “ON” position. CHECK THE ROTATION OF THE WORM DRIVE SHAFT;
ROTATION MUST BE COUNTER-CLOCKWISE as indicated by the rotation decal affixed to the grinding bowl.
ROTATION MUST ONLY BE CHECKED WITH THE GRINDING WORM REMOVED, otherwise serious
irreparable damage may occur to grinding components.
9. If machine runs clockwise (backwards), it must be rewired to correct rotation, otherwise serious irreparable
damage may occur to grinding components.
10. Insert worm assembly into grinding bowl, place knife (sharp edges out) onto the square end of the worm
assembly. The breaker plate slides over the worm knife drive pin, and is held from rotating by pins in the grinding
bowl. Put on the retaining ring.
ONLY HAND TIGHTEN RETAINING RING
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.
11. Check placement of all warning labels and Manual. Machine is now ready for trained operators to process
product.
12. Use meat deflector attached to tray to eliminate meat splatter.
13. Contact your local Distributor or BIRO directly if you have any questions or problems with the installation or
operation of this machine.
4
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).

5
WIRING DIAGRAM FOR HEAVY HORSEPOWER MANUAL FEED GRINDERS
EQUIPPED WITH AEG OR STROMBERG STARTER (3, 5, 712HP ONLY)
STARTING WITH SERIAL NUMBER 24808
WIRING DIAGRAM FOR HEAVY HORSEPOWER MANUAL FEED GRINDERS
EQUIPPED WITH AEG OR STROMBERG STARTER (10,15 HP ONLY)

OPERATION
ROTATING GRINDING WORM
TO AVOID SERIOUS PERSONAL INJURY
ONLY Properly Trained Personnel Should Use This Equipment.
NEVER Place Hands Into Machine Input or Output Openings.
NEVER Open Machine During Operation.
DO NOT Wear Gloves While Operating.
DO NOT Tamper With, Bypass, Alter, or Modify This Equipment in Any Way From Its Original
Condition.
NEVER Operate Machine With Tray And/Or Guard Removed, or Magnetic Safety Switch
By-Passed.
ALWAYS Turn Off, Unplug From Power Source and Perform Lockout/Tagout Procedure to This
Machine Before Unjamming, Unclogging, Cleaning or Servicing.
NEVER Leave Unattended While Operating.
NEVER Operate Without All Warning Labels Attached and Owner/Operator Manual Available to
the Operator.
A. TO PROCESS PRODUCT
1. Before starting grinder, have meat stomper within easy reach and method of receiving ground product
located at output end of grinding bowl.
2. Turn toggle to “ON” position. Look down grinder bowl and make certain grinding worm is turning in the
proper direction (counter-clockwise).
3. Carefully push unground product to top opening of grinding bowl and let drop to grinding worm. Product will
then be ground out.
DO NOT REACH DOWN BOWL OPENING
4. Use meat stomper to assist any product that should “bridge up” in grinding bowl opening.
5. When finished grinding turn toggle handle to “OFF” position and unplug grinder from power source and
perform lockout/tagout procedure.
6
DO’S
• Always keep knife & plate as matched set.
• Always keep the knife & plate sharp.
• Always check for levelness by laying the knife on
the plate before inserting in machine.
• Always install the knife & plate in correct sequence,
knife 1st then plate.
• Always keep knives & plates lubricated in storage and
when starting up machine.
• Always use coolant when sharpening plates.
• Always inspect the plates making sure all holes are clear-
that there are no cracks.
DON’Ts
• Never, never mix different knives to different plates.
• Never, never over tighten the bowl retaining ring on the
machine.
• Never, never run the grinder/mincer without product.
Product is a natural lubricant. Heat can build up so fast that
cold product could crack the plate.
• Never, never hit the plate against anything to clean the holes.
• Never, never throw the knives & plates.
6

MAINTENANCE
ROTATING GRINDING WORM
TO AVOID SERIOUS PERSONAL INJURY
ALWAYS Turn Off, Unplug 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 Labels.
USE ONLY GENUINE BIRO Parts and accessories Properly Installed.
A. GRINDING BOWL INSTALLATION
1. Mount the grinding bowl on the two threaded studs on the front of the machine. Tighten in position with
provided nuts.
2. Place the grinding worm in the grinding bowl and fully seat rear drive tang into worm drive shaft.
3. Install knife, breaker plate and end retaining ring.
ONLY HAND TIGHTEN RETAINING RING
4. When the bowl assembly is mounted and tight, there should be approximately 18" gap between the back
inside wall of the bowl and the back of the worm (SEE FIGURE 1). The bowl ring wrench which is provided
with each grinder is used only for REMOVAL of the end retaining ring for cleaning purposes or for changing
knife and breaker plate.
5. To check wear: With bowl assembly removed, place a straight edge across outside flange of aluminum
bearing housing. The end of the worm drive shaft should just contact the straight edge, i.e. flange face and
worm drive shaft end should be in the same plane (SEE FIGURE 2).
8

B. BEARING HOUSING LUBRICATION
1. Unplug grinder from power source and perform lockout/tagout procedures.
2. Remove bolted on tray.
3. Check and relubricate with good grade of lithium bearing grease semi-annually.
4. Reinstall tray and bolt on tightly.
C. ROLLER CHAIN AND DRIVE SPROCKET LUBRICATION
Chains should be protected against dirt and moisture. Chain life will vary appreciably depending upon its lubrica-
tion. The better the lubrication, the longer the chain life.
Lubrication effectiveness will vary with the amount of lubrication and frequency of application. Ideally, a lubricant
film should always be present between the working parts. Manually lubricate the chain after the 1st six weeks then ev-
ery 6 months thereafter.
Lubricating just the 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.
Recommended types of chain lubricant are those with Molybdenum Disulphide or Graphite added. Also bonded
lubricants such as Dow Corning’s Molykote 321R or equivalent are excellent for open chains. The lubricant should be
of a viscosity whereby it will “flow” somewhat and penetrate the internal working surfaces. Thick stiff greases are of lit-
tle value because they cannot work into moving parts of the chain.
Symptoms of Inadequate Lubrication:
1. Excessive noise
2. Chain becomes stiff
3. Chain runs hot
4. Broken pins, bushings or rollers
5. Excessive chain elongation — caused by wear on the pin outside diameter and pushing inside diameter
Once a chain is elongated or worn past acceptable limits, jumping of sprocket teeth and/or improper
chain/sprocket mesh will occur.
LUBRICATING CHAIN AND SPROCKETS
1. Unplug grinder from power source and perform lockout/tagout procedures.
2. Remove bolted on tray.
3. Spray or brush lubricant on inside of chain, slowly and carefully turning large sprocket by hand.
4. Reinstall tray and bolt on tightly.
D. MAIN DRIVE CHAIN TENSION LUBRICATING CHAIN AND SPROCKETS
1. Unplug grinder from power source and perform lockout/tagout procedure.
2. Remove feed tray.
3. Loosen motor mounting bolts.
4. Remove shims from under the motor. Important to remove same shims from back of motor as from the front for
proper sprocket alignment.
5. Total chain flex should be 18"to38" for proper chain tension. Do not over tension as this can cause excessive
wear or premature failure of motor bearings and journal box bearings.
6. Retighten all motor mounting bolts.
7. Reinstall feed tray.
9

10
OPTIONAL EAGLE BELT DRIVE SYSTEM
BIRO MANUAL FEED GRINDERS
MODELS 548,552,7548,7552,1056,1556

11

IMPORTANT: Must have Model and Serial Number when ordering Parts
MAIN BODY AND DRIVE SYSTEM FOR
3, 5 AND 712HORSEPOWER GRINDERS
Applicable on Choppers Starting with Serial No. 2250
10
Part No. Description
H301 ............Bearing box, aluminum
H301A ............Bearing box assembly
H302 ......Main drive shaft, 238´1514long
H303 ..........Shaft collar, 258´114long
H304 ............Shaft nut, 238´114long
H305 .............Shaft spacer, 238´112
H306 ..................Grease brg. box
H307 ........Bearing box grease fitting, 18
H308.........Main shaft key, 38´3916 long
H309 ........................... Seal
H310A ...............Front bearing cup
and cone assembly
H311A ................Rear bearing cup
and cone assembly
H313................Bowl studs, 12´314
H317 .................Switch rod, 2034L
H317-1....Switch rod 2018L after s/n 27182
H318 .............Aluminum switch cam
(Ser. 9039 to 11260)
H318-1 ..............Switch cam, nylon
(before 9039 & after 11260)
H319 ................... Switch handle
H322 .............Connection box cover
H324...............Base fee, 112", black
pipe coupling
H325A .............Base plate assembly
H327-11 .........Aluminum legs, 112´11
Motor Section
Part No. Description
H379.............3hp,220/440-50/60-3
H380-U...........5hp,220/440-50/60-3
H380-5B .............5hp,230-50/60-1
H381-U .........7
12hp, 220/440-50/60-3
NOT SHOWN
14572 ..............Ring wrench hanger
INSERT A
To convert machines S/N2250
to 3173 equipped with 2"
Silent Chain, 212" Silent
Chain, or 35-3 Roller Chain will
require:
1 Ea. H382 Motor Sprocket
1 Ea. H383 Main Sprocket
1 Ea. H384-CL 35-4 Roller Chain
w/Connecting Link
H328.................Switch lock collar
H331 ................... Roll pin, 18´58
H333 ........Model & serial number plate
H335A...............Bevel collar trim 8"
w/fastener
H346 ..................Connection box
H366 ..........12-13 hex nut, bowl & bowl
stud locknut
H382 ......Motor pinion – 19 tooth - 60 Hz
H382-1 . . . Motor pinion – 22 tooth for 50Hz
H383 ..............Sprocket – 141 tooth
H384-CL . 35-4 roller chain w/connecting link
H384-1 ..................
H384-2
H384-3
H386A ...............SScase assembly
H389-1...........Carriage bolt, 516-18 ´4
H390 .....Hexnut, 12-13 motor attachment
H406 .................Grease for chain
H425 ...............Motor shim 2" ´11"
H432 ............Boxendbowl wrench 78
H462 ............Guard for switch toggle
H462-1 ..................Guard ferrule
H476 .................HexnutSS516-18
H591 ...............Bushing, switch rod
H591-1 ...............Bushing lock nut
H592......Star washer, switch rod bushing
H653-E ...........Warning label, English
H653-SP..........Warning label, Spanish
SEE INSERT
“A” AT
}RIGHT
H386A
H653-E H653-SP
H367
H368
H382 ......Motor pinion – 19 tooth - 60 Hz
H382-1 . . . Motor pinion – 22 tooth for 50Hz
H383 ..............Sprocket – 141 tooth
H384-CL . 35-4 roller chain w/connecting link
H384-1 ..................
H384-2
H384-3
H386A ...............SScase assembly
H389-1...........Carriage bolt, 516-18 ´4
H390 .....Hexnut, 12-13 motor attachment
H406 .................Grease for chain
H425 ...............Motor shim 2" ´11"
H432 ............Boxendbowl wrench 78
H462 ............Guard for switch toggle
H462-1 ..................Guard ferrule
H476 .................HexnutSS516-18
H591 ...............Bushing, switch rod
H591-1 ...............Bushing lock nut
H592......Star washer, switch rod bushing
H653-E ...........Warning label, English
H653-SP..........Warning label, Spanish
SEE INSERT
“A” AT
}RIGHT
H367. . . . . .Hex Head Screw 5/8 - 11 x 2” Long
H368 . . . . . . . . . . . . . . . . . . . Lock Washer 5/8
H333
12

IMPORTANT: Must have Model and Serial Number when ordering Parts
MAIN BODY AND DRIVE SYSTEM FOR
3, 5 AND 712HORSEPOWER GRINDERS
Applicable on Choppers Starting with Serial No. 2250
GRINDER HORSEPOWER AND BOWL SIZE AVAILABLE
11
Model 342—3HP—#42size bowl — tinned
Model 548—5HP—#48size bowl — tinned
Model 552—5HP—#52size bowl — tinned
Model 7548 — 7.5 HP — #48 size bowl — tinned
Model 7552 — 7.5 HP — #52 size bowl — tinned
42 Bowl Section
Part Number Description
HC42A .................Bowl Assembly
HC42 .......................... Bowl
HS42A ................Worm assembly
HR42/48 ........................ Ring
HK48 ................... Knife drive pin
HP48 ....................... Bowl Pin
H340.............Aluminum ring wrench
52 Bowl Section
Part Number Description
HC52A .................Bowl assembly
HC52 .......................... Bowl
HS52A ................Worm assembly
HR52 .......................... Ring
HK52 .........Knife drive pin, fine thread,
to #26795
HK52/56 ....Knife drive pin, coarse thread,
#26796 on
HP52 ....................... Bowl pin
H340.............Aluminum ring wrench
48 Bowl Section
Part Number Description
HC48A .................Bowl assembly
HC48 .......................... Bowl
HS48A ................Worm assembly
HR42/48 ........................ Ring
HK48 ................... Knife drive pin
HP48 ....................... Bowl pin
H340.............Aluminum ring wrench
Tray Section For
3, 5, 7 Horsepower
Part Number Description
H339-1...........Spurt guard for SS tray
H388-1A ......Left hand tray assembly, SS
H388-2A .....Right hand tray assembly, SS
H338-SFT-2A .........Tray guard assem.
for SS tray
H387 ........Tray angles, .0625 ´134´29
H389-1...........Carriage bolt, 516-18 ´4
H404SFT ...........Stomper, 1212" long
H404SFT-SLD .......Solid stomper, 1212"
H407 ...........Wing nut, 38SS tray only
H441 ................... Warning decal
H476 .................HexnutSS516-18
H477 ..........SSstand off for tray guard
H512 ..................Magnet housing
H512-1.........Magnet ser. no. 26628 on
BOWL, RING, & WORM IDENTIFICATION
ALL DIMENSIONS IN INCHES
H404SFT
11-13/16 15-3/8 15-1/16
13

IMPORTANT: Must have Model and Serial Number when ordering Parts
ELECTRICAL CONTROLS
3, 5 AND 712HORSEPOWER GRINDERS
12
FROM SERIAL NO. 2250 TO
SERIAL NO. 5239
ORIGINALLY EQUIPPED WITH ALLEN BRADLEY
609-BAA MANUAL STARTER WITHOUT MAGNETIC
SAFETY SWITCH. THESE SWITCHES ARE OBSO-
LETE AND MUST BE UPDATED TO THE APPRO-
PRIATE AEG EQUIVALENT. ORDER H478AE
(SPECIFY HP AND VOLTS TO COMPLETE
NUMBER). AEG SWITCH ASSEMBLY MUST BE IN-
STALLED BY A QUALIFIED BIRO SERVICE
AGENCY.
FROM SERIAL NO. 9039 TO
SERIAL NO. 11260
ORIGINALLY EQUIPPED WITH ALLEN BRADLEY
609U-BAA MANUAL STARTER WITH MAGNETIC
SAFETY SWITCH. THESE SWITCHES ARE OBSO-
LETE AND MUST BE UPDATED TO THE APPRO-
PRIATE AEG EQUIVALENT. ORDER H478AE
(SPECIFY HP AND VOLTS TO COMPLETE
NUMBER). AEG SWITCH ASSEMBLY MUST BE IN-
STALLED BY A QUALIFIED BIRO SERVICE
AGENCY.
CONVERSION TO
AEG STARTER
FROM SERIAL NO. 2250 TO SERIAL
NO. 11260 WHEN REPLACING AN
ALLEN BRADLEY SERIES 609
STARTER WITH AN AEG STARTER.
NEW HOLE LOCATIONS MUST BE
DRILLED IN THE MACHINE CASE FOR
MOUNTING THE STARTER AND RE-
LOCATING THE SWITCH ROD AS
SHOWN IN THE DIAGRAM.
14

13
FROM SERIAL NO. 5240 TO
SERIAL NO. 9038 AND SERIAL NO.
11281 TO SERIAL NO. 24807
ORIGINALLY EQUIPPED WITH ALLEN BRADLEY
709-BAA MAGNETIC STARTER WITH MAGNETIC
SAFETY SWITCH AND AN ALLEN BRADLEY
800S-2SA START-STOP STATION. THE
START-STOP STATION IS STILL AVAILABLE, BUT
THE 709-BAA IS OBSOLETE AND NOT AVAIL-
ABLE. UNITS REQUIRING REPLACEMENT OR RE-
PAIR MUST BE UPDATED WITH THE
APPROPRIATE AEG STARTER. ORDER H478AE
(SPECIFY HP & VOLTS TO COMPLETE NO.)-LB.
AEG SWITCH ASSEMBLY LESS BUTTONS. THIS
SWITCH ASSEMBLY MUST BE INSTALLED BY A
QUALIFIED BIRO SERVICE AGENCY.
SERIAL NO. 24808 TO 26493
ORIGINALLY EQUIPPED WITH STROMBERG
STARTER WITH PUSH BUTTONS AND MAGNETIC
SAFETY SWITCH AS ONE UNIT. THE STROMBERG
STARTER AND INTERNAL COMPONENTS ARE NO
LONGER AVAILABLE. REPLACEMENT REQUIRES
UPDATE TO APPROPRIATE AEG EQUIVALENT.
SERIAL NO. 24808 TO PRESENT
EQUIPPED WITH AEG STARTER WITH PUSH BUT-
TONS AND MAGNETIC SAFETY SWITCH AS ONE
UNIT.
AEG Switch Section
Part Number Description
H318-1 ......Switch cam, nylon #5240-9038 & #11281 to present
42MC-Y64 ..................Magnetic safety switch, low voltage
H442-1 .................... Magnetic safety switch,high voltage
H478AE-21A-LB .................Switch assembly less buttons
BAEG/3-C12 (3HP-208/220/230V)
H487AE-23A-LB .................Switch assembly less buttons
BAEG/3-E6 (3HP-440V)
H478AE-25A-LB .................Switch assembly less buttons
BAEG/5-C17 (5HP-208/220/230V)
H478AE-27A-LB .................Switch assembly less buttons
BAEG/5-E12 (5HP-440V)
H478AE-30A-LB .................Switch assembly less buttons
BAEG/7.5-C23 (7.5HP-208/220/230V)
H478AE-32A-LB .................Switch assembly less buttons
BAEG/7.5-E17 (7.5HP-440V)
AEG Switch Section
Part Number Description
H318.......Switch cam, aluminum (#2250-5239 & #9039-11280)
H318-1 ................................. Switch cam, nylon
42MC-Y64 ..................Magnetic safety switch, low voltage
H442-1 .................... Magnetic safety switch, high voltage
H457 .................................. Square head screw
H478AE-21A...........Switch assembly BAEG/3-C12 (208/220V)
H478AE-22A............Switch assembly BAEG/3-D6 (380/415V)
H478AE-23A ...............Switch assembly BAEG/3-E6 (440V)
H478AE-24A ...............Switch assembly BAEG/3-F6 (550V)
H478AE-25A...........Switch assembly BAEG/5-C17 (208/220V)
H478AE-26A...........Switch assembly BAEG/5-D12 (380/415V)
H478AE-27A ..............Switch assembly BAEG/5-E12 (440V)
H478AE-28A ...............Switch assembly BAEG/5-F8 (550V)
H478AE-29A .........Switch assembly BAEG/5S-C32 (230V-1PH)
H478AE-30A .........Switch assembly BAEG/7.5 C23 (208/220V)
H478AE-31A .........Switch assembly BAEG/7.5-D17 (380/415V)
H478AE-32A .............Switch assembly BAEG/7.5-E17 (440V)
H478AE-33A .............Switch assembly BAEG/7.5-F12 (550V)
H479AE-220 .............Contactor SP27.10-C0 (208/220/230V)
H479AE-380 ................Contactor SP27.10-D0 (380/415V)
H479AE-440 .................... Contactor SP27.10-E0 (440V)
H479AE-550 .................... Contactor SP27.10-F0 (550)V
H481AE-51 ..............Overload B27S-K (3HP-380/440/550V)
H481AE-52 ..................... Overload B27S-L (5HP-550V)
H481AE-53 .............................. Overload B27S-M
(3HP-220V; 5HP-380/415/440V) (7.5HP-550V)
H281AE-31 .............................. Overload B27S-N
(5HP-220V; 7.5HP-380/415/440V) (10HP-380/415/440/550V)
H281AE-32 .............................. Overload B27S-O
(7.5PH-220V) (15HP-380/415/440/550V)
H281AE-33 .......Overload B27S-P (5HP-230V-1PH; 10HP-220V)
H478AE-ENCL-PB.......WTenclosure w/button holes (3/5/7.5HP)
H482-1........................ Green Push Button (3,5,712HP)
H482-2 ......................... RedPush Button (3,5,712HP)
15

IMPORTANT: Must have Model and Serial Number when ordering Parts
MAIN BODY AND DRIVE SYSTEM
FOR 10 AND 15 HORSEPOWER GRINDERS
Applicable on Choppers Starting with Serial No. 2250
14
Part No. Description
H101 ..................... Bearing box
H101A ............Bearing box assembly
H102 ........Main drive shaft, 314rd ´1512
H103 ...............Shaft collar, 314´1
H104 ................Shaft nut 314´114
H105 ..............Shaft spacer 314´114
H109 ........................... Seal
H110A ...............Front bearing cup
& cone assembly
H111A ................Rear bearing cup
& cone assembly
H113 ...............Bowl stud 34-10 ´4
H117 .................Switch rod, 2414L
H117-1 . . . Switch rod 2358L after s/n 27192
H125A .............Base plate assembly
H127S-6 ..............Steel legs, 112´6
H135A............Bevel collar trim — 10
w/fastener
H182......Motor pinion – 17 tooth – 60 Hz
H182-1 ....Motor pinion – 21 tooth – 50Hz
H183 ...............128tooth sprocket
H184 ................... 3"silent chain
H184-1 ............Master link 12pitch 3"
H186A ..........Case assembly, stainless
H222 ...........Hexnutforbowl stud, 34
H224 .............Motor shim, 1 ´2 CF,
11" long, 10, 15 HP
H225 ............Motor Shim, 18´2´11
(use H425)
H232 ...............Boxendwrench, 1"
H306 .................Grease, brg. box
H307 .........Bearing box grease fitting,
H308 ............Main shaft key, 3 long
H318-1 ..............Switch cam, nylon
H319 ................... Switch handle
H322 .............Connection box cover
H324 ..............Base feet, 112", black
pipe coupling
H328 .................Switch rod collar
H331 ................... Roll pin, 18´58
H333 ........Model & serial number plate
H346 ..................Connection box
H389-1...........Carriage bolt, 516-18 ´4
H390 .....Hexnut, 12-13 motor attachment
H406 .................Grease for chain
H462 ............Guard for switch toggle
H462-1 ..................Guard ferrule
H476 .................HexnutSS516-18
H591 ...............Bushing, switch rod
H591-1 ...............Bushing lock nut
H592......Star washer, switch rod bushing
H653-E ...........Warning label, English
H653-SP..........Warning label, Spanish
Motor Section
Part No. Description
H179-U..........10hp,220/440-50/60-3
H180-B ..........15hp,220/440-50/60-3
NOT SHOWN
14572 ..............Ring wrench hanger
H653-SPH653-E
H333
16

18-11/1616-25/32
17

IMPORTANT: Must have Model and Serial Number when ordering Parts
ELECTRICAL CONTROLS
10 AND 15 HORSEPOWER GRINDERS
16
FROM SERIAL NO. 2250
TO SERIAL NO. 24729
ORIGINALLY EQUIPPED WITH ALLEN BRADLEY
709-BAA MAGNETIC STARTER WITH MAGNETIC
SAFETY SWITCH AND AN ALLEN BRADLEY
800S-2SA START-STOP STATION. THE
START-STOP STATION IS STILL AVAILABLE, BUT
THE 709-BAA IS OBSOLETE AND NOT AVAIL-
ABLE. UNITS REQUIRING REPLACEMENT OR RE-
PAIR MUST BE UPDATED WITH THE
APPROPRIATE AEG STARTER. ORDER H278AE
(SPECIFY HP & VOLTS TO COMPLETE NO.) AEG
SWITCH ASSEMBLY. THIS SWITCH ASSEMBLY
MUST BE INSTALLED BY A QUALIFIED BIRO SER-
VICE AGENCY.
AEG Switch Section
Part Number Description
H277...........SOCord, 16/4 (10, 15HP
push button to starter)
H278AE-11A ..........Switch Assembly,
BAEG/10-C32 (220V)
H278AE-12A ..........Switch Assembly,
BAEG/10-D17 (380/415V)
H278AE-13A ..........Switch Assembly,
BAEG/10-E17 (440V)
H278AE-14A ..........Switch Assembly,
BAEG/10-F17 (550V)
H278AE-15A ..........Switch Assembly,
BAEG/15-C50 (220V)
H278AE-16A ..........Switch Assembly,
BAEG/15-D23 (380/415V)
H278AE-17A ..........Switch Assembly,
BAEG/15-E23 (440V)
H278AE-18A ..........Switch Assembly,
BAEG/15-F23 (550V)
H279AE-220.......Contactor SP37.10-C0
(208/220/230V)
H279AE-380 ......Contactor SP37.10-D0
(380/415V)
H279AE-440.......Contactor SP37.10-E0
(440V)
H279AE-550.......Contactor SP37.10-F0
(550V)
H281AE-31 ...........Overload B27S-N
(5HP-220V; 7.5HP-380/415/440V)
(10HP-380/415/440/550V)
H281AE-32 ...........Overload B27S-O
(5HP-220V)
(15HP-380/415/440/550V)
H281AE-33 ............Overload B27S-P
(5HP-230V-1PH; 10HP-220V)
(10HP-380/415/440/550V)
H281AE-34 ..........Overload B77S-QN
(15HP-220V)
H278AE-ENCL ............WTenclosure
less button holes (10/15HP)
H318-1 ..............Switch cam, nylon
(before 9039 & 11281 to present)
H348 .......Push button station 800S2SA
42MC-Y64 ........Magnetic safety switch,
low voltage
H442-1 ...........Magnetic safety switch,
high voltage
FROM SERIAL NO. 24780
TO SERIAL NO. 26586
ORIGINALLY EQUIPPED WITH STROMBERG
STARTER WITH MAGNETIC SAFETY SWITCH AND
AN ALLEN BRADLEY 800S-2SA START-STOP
STATION. THE START-STOP STATION IS STILL
AVAILABLE, BUT THE STROMBERG STARTER AND
INTERNAL COMPONENTS ARE NO LONGER
AVAILABLE. REPLACEMENT REQUIRES UPDATE
TO APPROPRIATE AEG EQUIVALENT.
FROM SERIAL NO. 24780
TO PRESENT
EQUIPPED WITH AEG MAGNETIC STARTER AND
AN ALLEN BRADLEY 800S-2SA START-STOP
STATION.
18