Univex MG8912 User manual
INSTRUCTION
MANUAL MEAT GRINDER
Persons under age 18 are not permitted to operate or
have accessibility to operate this equipment per
U.S. Dept. of Labor Employment Standards
Administration Fact Sheet No. ESA91-3.
univex
MG8912/0303 ED5
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MG8912
INSTRUCTION MANUAL
MODEL MG8912 MEAT GRINDER
The UNI VEX Model MG8912 Meat Grinder is a portable electric power driven machine
designed to process 8 to 12 lb. of meat per minute. It consists of a I HP drive assembly with a No.
12 drive hub operating at 250 RPM; a grinder head assembly with interchangeable plates to vary
the texture of the processed meat; an 8 qt. feed pan to hold the meat that is to be processed; and a
plastic stomper to insert the meat into the grinder.
INSPECTION
The assemblies are inspected and tested at the factory; however, the user should examine the
grinder head assembly (Fig. 2) and compare the parts ordered and received with the parts list. The
drive assembly (Fig. 1) is complete and requires only to be externally inspected and electrically
checked prior to use. The electrical data listed on the nameplate of the drive assembly should be
the same as the user's electrical supply. Any damage should be reported to the carrier immediately,
and any shortage or deviation of parts to UNI VEX Corporation.
SAFETY
The user should read and understand these instructions prior to operating the machine. New
operator& should be properly trained in safety precautions to be observed for the proper use and
servicing ofthis machine.
Switch the power "OFF" and disconnect the electrical supply prior to mounting or
dismounting the grinder head, cleaning, or servicing the machine.
Switch the power 'OFF' prior to connecting the electrical supply or resetting the circuit
breaker. To prevent unauthorized operation, the power switch can be lock in the OFF" position by
removing the switch key. A manual resettable overload circuit breaker is provided on the back of
the machine, In case this circuit breaker is actuated, switch the power "OFF', disconnect the
electrical supply, determine and correct the fault prior to resetting the breaker.
Assure that the meat chopper is properly assembled and installed with the thumb screw
tightenedbefore connecting the electrìcal supply.
The knife is sharp. Use extreme care when handling or cleaning.
Do not put your fingers in the throat of the grinder when the electrical supply is connected.
Use the plastic stomper for inserting meat into the grinder. Do not put fingers or objects into plate
holes. Wipe down the exterior of the drive assembly only. Never hose down or immerse the drive
assembly in water.
Do not attempt to service the drive assembly yourself. Refer to the list of UNI VEX
approved service representatives for adjustment or repair of your UNI VEX equipment.
ASSEMBLY
Attach the Pan Support (Fig. 1 Item 7) to the Housing Cover (Item 3) using screws provided.
The PTO adapter (Fig. 1 Item 24,) should remain on the PTO drive shaft when the grinder
head is removed. The Grinder Head Housing Assembly (Fig. 2 Item 4 through 8,) should be
maintained as an integral unit. No additional disassembly of these components should occur.
Likewise, the Worm Assembly (Fig. 2 Items 9 through 12,) should be maintained as an integral
unit. These assemblies and the other components of the Grinder Head Assembly should be washed
with awarmwater and soap solution and driedpriorto use. Inspectthe Knife (Item 13) for
sharpness and handle carefully.
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MG8912
Insert the housing of the Grinder Head Assembly into the PTO housing of the Drive
Assembly. Tighten the thumb screw and assure that the engagement isproper and secure. Lightly
coat the Drive Shaft (Item 9) and Fiber Washer (Item 10) of the Worm Assembly with Drive Shaft
Lubricant (Item 16). Insert the Worm Assembly into the Housing, assuring that it is engaged in the
PTO adapter.
The Knife and Grinder Plate (Items 13 & 14) should be coated with the lubricant provided
or beef tallow prior to assembly. Place the Knife, SHARP EDGES OUT, on thesquare extension
of the Worm Assembly. Place the Grinder Plate on theworm assembly extension so that the notch
in the plate engages the pin in the grinder housing. Screw the Hand wheel Ring(Item 15) on the
housing assembly using only minimum force. The ring controls thepressure between the plate and
the knife. The knife is easily damaged by dry runningor excessive force on the Hand wheel Ring.
Mount the Feed Pan on the top of the Drive Assembly so that its outlet spout engages the
inlet throat of the Grinder Assembly Housing.
PROCESSING
Locate the equipment for the convenience of the operator, allowing free access to the power
switch and sufficient clearance for safety and care of operation. Slice themeat into strips which
will easily fit into the outlet of the Feed Pan. Place a suitable container at the discharge of the
Grinder Head. Place the meat in the Feed Pan and start grinder. Hand feed themeat into the outlet
of the pan using the stomper to feed the meat into the grinding worm. Do not use the stomper to
force feed the grinder at an increased rate. Best results are obtained when the meat is fed only as
fast as the grinder processes it. Switch the power 'OFF when processing is interrupted. When the
processing has been compled, switch the power "OFF" and disconnect the power supply cord.
Dismount the Grinder Head from the Drive. Disassemble, wash, and dry thecomponents of the
Grinder Head. Store the components in a refrigerator for added sanitation.
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ITEM NO.
MG8912 MEAT
PART NO.
GRINDER ASSEMBLY
FIGURE 1
DESCRIPTION
MG8912
OTY.
8700001 Housing
28700014 Foam, Rubber Strip 2
38700002 Cover, Housing
44400141 Nut, Kep 1/4-20 4
51200075 Washer, Steel Flat 1/4 7
61200442 Screw, Truss HD 10-32 x 1/2 4
78700012 Bracket, Pan support
88700009 Sleeve, Pan Support 2
9Reserved
10 1030019 Ball Bearing 6204ZZ 2
11 4400072 Set Screw 5/16-18 x 3/8 2
12 8800010 Shaft, P T O
13 4400230 Key 3/16 Square
14 1200117 Retaining Ring mt.
15 1200119 Retaining Ring Ext. 2
16 8700025 Pulley, Driven
17 8700010 Belt, Drive 300J10
18 1200025H Screw, Hex HD 1/4-20 x 3/4 3
19 4400005 Lockwasher 1/4 3
20 8700035 Switch, With Key
21 8700036 Key, Switch (Key Only)
22 8700019 Knob Assembly, P T O 1
23 4400045 Housing, P T O 1
24 8800012 Adaptor, P T O i
25 1200412 Set Screw 1/4-20 x 1/4 2
26 1200415 Bolt, 10-32 x 1/4
27 8700024 Pulley, Drive
28 4400410 Nut 8M x 1.25 4
29 7510094 Feet 4
30 1200012 Screw, Phil HD 10-3 2 x 1/2 6
31 4400414 Washer, Flat 1/4 4
32 8700026 Spring, Compression 2
33 4400415 Sleeve (Long) 2
34 1200411 Screw, Hex BD 1/2-20 x 2 2
35 1200413 Screw, Hex HD 1/4-20 x 1 1/2 2
36 4400416 Sleeve (Short) 2
37 8700032 Spacer, Isolator 4
38 4400398 Cable Tie 3
39 1012042 Strain Relief
40 8800100 Cord, Electric 115V
8800100-2 Cord, Electric 220V
41 Reserved
42 1030307E Motor, I HP. 115V, 60HZ
Motor, i HP, 220V, 60HZ
43 4400417 Sleeve, Spring 2
44 1200076 Washer no. 10 2
45 8700022 Label, Attention (Not Shown)
46 4400351 Label, Caution (Not Shown)
47 1200060 Nut, Hex 10-32 5
48 4400065 Lockwasher, #10 4
FOR CSA ONLY)
40 8800100-1 Cord, Electric 115V
49 4400239 Circuit Breaker
50 4400227 Label, Reset (Not Shown)
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*Illus No. 9 is part ofNo 11
Page 5
GRINDER HEAD W/PAN & STOMPER
FIGURE 2
MG8912
ILLUS. PART NO. DESCRIPTION QTY
11000505 Stomper, Plastic
2870001 1 Pan, Stainless Steel
3RESERVED
4100065 1 Housing, No. 12 hub
5
6
4400351 Label,
RESERVED
74400275 Pin, Locating Hub
84400050 Pin, Lock Plate 5/32 x 1 1/2 Stainless Steel
91000519 * Shaft, Drive
10 1000516 Fiber Washer 3/4 x 1 5/16 x 1/8
11 1000653 Worm
12 1000518 Shaft, Front
13 1000506 Knife
14 1000509 Plate 3/16
1000508 Plate 1/8 Optional
1000510 Plate 1/4 Optional
1000511 Plate 3/8 Optional
1000512 Plate 1/2 Optional
15 1000652 Hand wheel Ring
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